JP3945582B2 - Compressor exhaust assembly - Google Patents

Description

  The present invention relates to compressors, and more particularly to scroll compressor exhaust chambers.

  Conventional scroll compressors have a hermetically sealed housing that houses the scroll and motor. Lubricating oil is also present in the housing and often accumulates in the lower part of the housing, so that this lower part functions as an oil sump. However, the movement of the lubricating oil inside the compressor during operation of the compressor may eventually collect the lubricating oil in a location where it is undesirable for such lubricating oil to collect.

  Thus, a scroll compressor that provides improved control and adjustment of the lubricating oil in the housing is desired.

  The present invention provides a scroll compressor having an exhaust chamber with an outlet positioned to prevent excessive accumulation of lubricant in the exhaust chamber.

  The present invention, in one form thereof, includes an oil lubricated compressor assembly for compressing gas, including a housing, an exhaust chamber defined within the housing, and a compressor mechanism disposed within the housing. Is provided. The compressor mechanism has a first port that defines a working space in which gas is compressed and communicates with the exhaust chamber, whereby the compressed gas and oil are transferred from the working space to the exhaust chamber. Sent. A second port is located in the exhaust chamber and defines an outlet through which compressed gas and oil are exhausted from the compressor assembly within the housing. The second port is positioned vertically below the first port in the exhaust chamber so that the oil accumulated in the exhaust chamber can be discharged with the compressed gas through the second port. And substantially all fluid entering the exhaust chamber enters through the first port and substantially all fluid exiting the exhaust chamber exits through the second port.

  The compressor assembly may also include a valve that is sealably engageable with the first port, where the valve causes fluid to enter the work space into the exhaust chamber and from the exhaust chamber to the work space. Reduce fluid migration. The compressor assembly also includes an exhaust pipe that has an inlet defining a second port disposed within the exhaust chamber. An exhaust pipe extends through the housing, and the housing includes a relatively flat portion adjacent to the exhaust pipe where the exhaust pipe is welded to the housing. The compressor assembly can be a scrolling compressor in which the compressor mechanisms are engaged and secured to each other and the first port is positioned within the stationary scroll member.

  The present invention, in another form, comprises an oil lubricated compressor assembly for compressing gas, including a sealed housing having a high pressure exhaust chamber and a low pressure exhaust chamber defining a first volume. . The compressor mechanism is operatively disposed between the high pressure exhaust chamber and the low pressure exhaust chamber within the housing to define a working space in which the gas is compressed. A motor for driving the compressor mechanism is positioned in the low pressure chamber. The first port communicates with the work space and the high pressure chamber and provides for the transfer of compressed gas and oil from the work space to the high pressure chamber. A second port leading to the high pressure chamber defines an outlet in the housing. The second port is positioned vertically below the first port, with the majority of the first volume positioned vertically above the second port, and substantially all fluid entering the exhaust chamber. Enters through the first port and substantially all of the fluid exiting the exhaust chamber exits through the second port.

  The compressor assembly also includes a housing that defines an inlet opening that communicates with the low pressure chamber. The low pressure chamber also defines a sump.

  In another aspect, the present invention includes a method for controlling oil movement and accumulation in a compressor mechanism. The method includes providing a sealed housing that defines a high pressure chamber and a low pressure chamber, and providing a compressor mechanism within the housing. The compressor mechanism is used for gas compression. Oil and compressed gas are discharged from the compressor mechanism to the high pressure chamber via the first port. Oil accumulates at the bottom of the high pressure chamber. A second port is disposed vertically in the high pressure chamber between the bottom and the first port, and the accumulation of oil in the high pressure chamber drains excess oil along with the compressed gas through the first port. It is limited by. The method also includes enclosing the high pressure chamber such that substantially all fluid entering or exiting the high pressure chamber enters or exits the high pressure chamber via the first and second ports.

  The method may also include providing a motor for driving the compressor mechanism and placing the motor in a low pressure chamber. The method may also include circulating oil in the low pressure chamber. Circulating the oil in the low pressure chamber includes collecting the oil in a sump disposed in the low pressure chamber. The compressor mechanism may include a fixed scroll member and an orbiting scroll member, and the step of compressing the gas by the compressor mechanism causes the orbiting scroll member to circulate around the fixed scroll member. including.

  The advantage of the present invention is that by placing the exhaust chamber outlet port in the lower part of the exhaust chamber, when excess oil collects in the exhaust chamber, the flow of compressed gas vapor exiting the exhaust chamber is removed from the exhaust chamber. It is to remove the oil.

  Another advantage of the present invention is that it facilitates adhesion of the exhaust pipe to the housing, such as by resistance welding, by using an exhaust pipe that extends through the flat portion of the housing through the compressor housing.

  The foregoing and other features and objects of the present invention, as well as methods for achieving them, will become more apparent with reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, in which: It will be better understood.

  Corresponding reference characters indicate corresponding parts throughout the several views. The specific examples described herein are illustrative of embodiments of the invention, but the embodiments disclosed below are not intended to be exhaustive and remain within the scope of the invention. It is not intended to be construed as limited to the form of

  In accordance with the present invention, a scroll compressor 20 is shown in exploded view in FIG. The scroll compressor 20 includes a fixed or stationary scroll member 22 that is engaged with an orbiting scroll member 24. Fixed and orbiting scroll members 22 and 24 include involute wraps 26 and 28, respectively. The refrigerant is compressed between the scroll members 22 and 24, formed between the involute wraps 26 and 28, and compressed in a pocket that moves inward in the radial direction when the scroll member 24 moves around the fixed scroll member 22. The refrigerant enters the space between the scroll members through the inlet 23 (FIG. 4) positioned at the outside in the radial direction of the space formed between the scroll members 22 and 24 at a low pressure, and is fixed at a relatively high pressure. The gas is discharged through an exhaust port 30 positioned close to the radial center of the scroll member 22. The scroll members 22, 24 are each attached to a recess located at the distal tip of the involute wraps 26, 28 for providing a seal between the involute wraps 26, 28 and the opposing scroll member base plate. It has a carbon steel tip seal 40.

  The check valve allows the compressed refrigerant to be discharged into the exhaust chamber or plenum 38 and prevents the compressed refrigerant located in the exhaust plenum 38 from flowing back into the exhaust port 30. The valve includes an exhaust valve leaf 32 that sealingly engages the fixed scroll member 22 at the exhaust port 30 and an exhaust valve retainer 34. The valve leaf 32 is fixed between the fixed scroll member 22 and the valve retainer 34. The valve retainer 34 has a bend at its distal end that allows the valve leaf 32 to bend outwardly from the exhaust port 30 when gas is compressed between the scroll members 22, 24. Access to the plenum 38 becomes possible. The valve retainer 34 limits the extent to which the valve leaf 32 can be bent outward from the exhaust port 30 and prevents damage due to excessive bending of the valve leaf 32. The threaded fastener 36 fixes the valve retainer 34 and the valve leaf 32 to the fixed scroll member 22. An alternative valve that can be used by the compressor 20 is U.S. Provisional Patent Application No. 60 / 412,905, filed Sep. 23, 2002, entitled "Compressor with Exhaust Valve", Haller et al. It is described by number. A pressure relief valve 27 is arranged between the scroll members 22 and 24 so that the gas at the discharge pressure can be directed to the intake pressure inlet in the case of excessive pressurization.

  Between the fixed scroll member 22 and the orbiting scroll member 24, an Oldham ring 44 for controlling the relative movement between the orbiting scroll member 24 and the fixed scroll member 22 is disposed. The orbiting scroll 24 is attached to an extension 48 arranged eccentrically on the shaft 46, and the rotation of the shaft 46 provides a relative orbiting action between the orbiting scroll 24 and the fixed scroll 22. . The use of shafts and Oldham rings with eccentrically arranged extensions to provide relative orbiting motion between compressor scroll members is well known to those of ordinary skill in the art.

  The counterweight 50 (FIG. 1) includes a collar portion having an opening through which the shaft 46 is inserted. The counterweight 50 is not shown in FIGS. The counterweight 50 also includes a partially cylindrical wall 52 that eccentrically loads the shaft 46 to balance the eccentric load of the shaft 46 by the orbiting scroll 24. In the disclosed embodiment, the counterweight 50 is fitted onto the shaft 46 by thermal contraction. The shaft 46 includes an internal passage 54 that extends along the longitudinal length of the shaft 46 and a secondary passage 56 that extends laterally from the passage 54 to the radially outer surface of the shaft 46. The passages 54, 56 deliver lubricating oil between a sump 58 located in the intake pressure chamber of the compressor housing and a bearing that rotationally engages the shaft 46.

  Two roller bearings 60 are disposed on the shaft 46 where the shaft 46 engages the orbiting scroll 24 and the crankcase 62, respectively. A ball bearing 64 is disposed near the opposite end of the shaft 46 and is mounted within the bearing support 66. Support for shaft 46 is described in US patent application Ser. No. 09 / 964,241 filed Sep. 26, 2001, entitled “Axial Compliance Mechanism of Shaft”, Haller et al., Which is hereby incorporated by reference. Can be done in a similar way.

  The crankcase 62 is fixed to the fixed scroll 22 by a threaded fastener 72 that passes through a gap 74 positioned in the fixed scroll 22 and engages a screw hole 76 in the crankcase 62. The crankcase 62 includes a thrust surface 68 that slidably engages the orbiting scroll 24 and restricts the movement of the orbiting scroll 24 away from the fixed scroll 22. The crankcase 62 also includes four legs 78 that secure the crankcase to the stator 92 as described in detail below. The shaft 46 extends through an opening 80 in the crankcase 62. The crankcase 62 is disposed between the legs 78 at the bottom of the horizontal compressor housing and includes a shroud portion 70 surrounding the space in which the counterweight 50 rotates. The shroud 70 includes an opening 81 along its upper portion that allows pressure equalization between the space partially enclosed by the shroud 70 and the low pressure chamber of the compressor 20 or other space of the plenum 39. The low pressure plenum 39 includes a space located in the compressor housing 88 between the orbiting scroll 24 and the end cap 168 and receives intake pressure refrigerant returned to the compressor 20 via the inlet pipe 86.

  A suction baffle 82 (FIG. 1) is fixed between the two legs 78 using fasteners. The illustrated fastener is a socket head cap screw 84, but other fasteners such as self-tapping screws and other fastening methods may be used to secure the suction baffle 82. The suction baffle 82 is located proximate to the inlet tube 86 as best seen in FIG. The refrigerant enters the compressor housing 88 via the inlet pipe 86, but the suction baffle 82 is disposed in the flow path of the entering refrigerant and redirects the refrigerant along the outer periphery of the crankcase 62. The outer periphery of the crankcase 62 includes a recess 85 that defines a passage to the inlet 23 adjacent to the suction baffle 82. The crankcase 62 includes a sleeve portion 89 in which a roller bearing 60 for rotatably supporting the shaft 46 is installed. The sleeve 89 is supported by the shroud portion 70 opposite the opening 80. An alternative crankcase and suction baffle assembly may include an inlet to the housing 88 positioned at an intermediate height, where the suction baffle is positioned between the inlet 86 and the inlet 23. It has a narrow opening that extends across the direction of refrigerant flow along the suction baffle to remove oil from the baffle. A crankcase and suction baffle that can be used by the compressor 20 is described in US Provisional Patent Application No. 60 / 412,768 filed Sep. 23, 2002, entitled "Compressor Assembly", Haller et al. It is described by number.

  The motor 90 is disposed adjacent to the crankcase 62 and includes a stator 92 and a rotor 94. The bushing 96 is used to correctly position the stator 92 relative to the crankcase 62 and the bearing support 66 when assembling the compressor 20. When assembled, the crankcase 62, the motor 90, and the bearing support 66 must each have a hole into which the shaft 46 is inserted in proper alignment. Crankcase 62, motor 90 and bearing support 66 are provided with gliding pilot holes 100, 102, 104 that are precisely positioned relative to these holes. The alignment bushing 96 fits snugly in the pilot hole and aligns the crankcase 62, motor 90 and bearing support 66 correctly. Next, the bolts 98 (FIG. 1) are used to fix the bearing support 66, the motor 90, and the crankcase 62 together. The pilot hole 100 is positioned at the distal end of the leg 78 in the crankcase 62, and when the crankcase 62, the motor 90 and the bearing support 66 are fixed together, the bolt 98 passes through the threaded portion of the hole 100. Engage with. A pilot hole 102 located in the stator 92 of the motor 90 extends through the stator 92 and allows the passage of bolts 98 therethrough. The pilot hole 104 located in the bearing support 66 also allows the passage of the bolt 98 shaft therethrough, but prevents the head of the bolt 98 from passing through and the bolt 98 engages the crankcase 62. When the crankcase 62, the motor 90, and the bearing support 66 are fixed together, they lean against the bearing support 66. In the disclosed embodiment, the bushing 96 is a hollow sleeve and the bolt 98 is inserted through the bushing 96. However, in alternative embodiments, it is possible to properly align the crankcase 62, motor 90, and bearing support 66 by using a pilot hole and bushing to differently fix these parts together. . For example, the pilot hole can be separate from the opening into which the bolt 98 is inserted, or the pilot hole and alignment bushing 96 can be used to align the crankcase 62, motor 90 and bearing support 66. It is also possible to adopt alternative methods of fixing. An alignment bushing usable by the compressor 20 is disclosed in US Provisional Patent Application No. 60, filed Sep. 23, 2002, entitled “Compressor and Assembly Method with Alignment Bushing” by Skinner, which is incorporated herein by reference. / 412,868.

  A termination pin cluster 108 is positioned on the motor 90 and wiring (not shown) connects the cluster 108 to a second termination pin cluster 110 attached to the end cap 168, which is connected to the motor 90. Power is supplied via A terminal guard or fence 111 is welded to the end cap 168 and surrounds the terminal cluster 110. The shaft 46 extends through a hole in the rotor 94 and is rotationally fixed thereto by shrink fitting, so that when the rotor 94 rotates, the shaft 46 also rotates. The rotor 94 includes a counterweight 106 at the end adjacent to its bearing support 66.

  As described above, the shaft 46 is rotationally supported by a ball bearing 64 that is mounted within the bearing support 66. The bearing support 66 includes a central boss 112 that defines a substantially cylindrical opening 114 to which the ball bearing 64 is attached. In order to hold the ball bearing 64 within the boss 112, a retaining ring 118 is fitted into a groove 116 positioned within the opening 114. An oil shield 120 is secured to the boss 112 and has a cylindrical portion 122 extending therefrom toward the motor 90. A counterweight 106 is disposed in a space circumscribed by the cylindrical portion 122, so that the counterweight 106 is shielded from oil existing in the oil sump 58. However, under most circumstances, the oil level 123 is expected to be below the oil shield 120 as shown in FIG. The oil shield 120 prevents the influence of the counterweight 106 on the oil that moves to the oil sump 58 and is also generated by the movement of refrigerant gas generated by the rotation of the eccentrically arranged counterweight 106. It is arranged to prevent agitation in the oil sump 58 that may occur. The second substantially cylindrical portion 124 of the oil shield 120 has a smaller diameter than the first cylindrical portion 122 and a plurality of longitudinally extending portions having a radially inwardly curved distal portion. Have a tab to do. The boss 112 includes a circular groove, and the oil shield 120 is secured to the boss 112 by engaging a radially inwardly bent distal portion with the circular groove. An oil shield usable by the compressor 20 is disclosed in US Provisional Patent Application No. 60/412, filed September 23, 2002, entitled Skinner's “Compressor with Counterweight Shield”, which is incorporated herein by reference. , 838.

  A support arm 134 extends between the boss 112 of the bearing support 66 and the outer ring 136. The outer periphery of the ring 136 engages the housing 88 with a press fit and secures the bearing support 66 therein. The inner circumference of the outer ring 136 faces the winding of the stator 92 when the bearing support 66 is engaged with the motor 90. A flat 138 is positioned on the outer periphery of the ring 136 and the upper flat 138 allows refrigerant to pass between the outer ring 136 and the housing 88 to facilitate equalization of pressure within the suction plenum. A flat 138 positioned along the bottom of the ring 136 allows oil in the sump 58 to pass between the ring 136 and the housing 88. A notch 140 positioned on the inner circumference of the outer ring 136 can be used to position the bearing support 66 during machining of the bearing support 66, and the refrigerant is also between the stator 92 and the ring 136. The pressure equalization in the suction plenum 39 is promoted by allowing it to pass. The outer periphery of the stator 92 also includes a flat that provides a passage between the stator 92 and the housing 88 through which lubricating oil and refrigerant can move.

  The support arms 134 limit the extent to which the two lowest arms 134 are at an angle of about 120 degrees so that the two lowest arms 134 extend into the oil in the sump 58, thereby allowing these arms to extend. 134 is arranged to limit the displacement of the oil in the oil sump 58. The sleeve 142 protrudes rearward from the bearing support 66 and is provided for the intake of lubricating oil from the oil sump 58. An oil pickup tube 144 is fixed to the sleeve 142 with a threaded fastener 146. O-ring 148 provides a seal between oil pickup tube 144 and sleeve 142. As shown in FIG. 1, a vane 150, a reverse port plate 152, a pin 154, a washer and wave spring 156, and a retaining ring 158 that facilitate the movement of the lubricating oil through the sleeve 142 are fixed to the holes in the sleeve, It is disposed near the end of the shaft 46. The washer and wave spring 156 are shown as one part in FIG. 1, but are two separate parts, the washer being a flat circular part that does not include a central opening, and the wave spring is made from sheet material. It is formed and has a circular outer periphery, a central opening and a corrugation extending the outer periphery. Such washers and wave springs are well known in the art. A bearing support usable by the compressor 20 is disclosed in US Provisional Patent Application No. 60/412, filed Sep. 23, 2002, entitled "Compressor with Bearing Support", Haller, which is incorporated herein by reference. 890. The bearing support may also include one or more annularly spaced recesses that rest against the stator on the surface of the outer ring, thereby allowing any optional lamination in the stator to be generated by the fixation of the bearing support to the stator. The bulge of can protrude into the recess. The use of such recesses is described by US patent application Ser. No. 10 / 617,475 entitled “Compressor Bearing Support and Stator Assembly” by Skinner et al., Which is incorporated herein by reference.

  As can be seen from FIGS. 3 and 4, the compressor housing 88 includes a discharge end cap 160 having a relatively flat portion 162. The housing 88 also includes a cylindrical shell 166 and a rear end cap 168. Both end caps 160, 168 are welded to the cylindrical shell 166 to provide a sealed enclosure. End caps 160, 168 are manufactured using a deep drawing steel stamping process. The exhaust pipe 164 extends through the opening 360 in the flat portion 162. Fastening the exhaust pipe 164 to the end cap 160 by welding or brazing is facilitated by the use of a flat portion 162 that directly surrounds the opening through which the exhaust pipe 164 is disposed. The end cap 160 is shown in FIGS. 5 and 6, and the edge of the flat portion 162 is indicated by the dashed line in FIG. In the disclosed embodiment, the exhaust pipe 164 is a copper plated steel pipe resistance welded to the end cap 160. The use of a steel pipe provides strength to the exhaust pipe 164 and facilitates resistance welding of the pipe 164 to the end cap 160. The use of copper plating for the exhaust pipe 164 facilitates a soldered connection to the exhaust pipe 164. This allows the end user of the compressor 20 to immediately make a solder connection to the end of the tube 164 extending outward from the compressor 20.

  When the compressor and motor temporary assembly is assembled and shrink fit into the cylindrical housing shell 166, the stationary scroll member 22 is placed into the discharge end cap 160 and securely engages the inner surface of the end cap 160. . An exhaust plenum 38 is formed between the discharge end cap 160 and the fixed scroll member 22. Since the compressed refrigerant is discharged through the exhaust port 30, the refrigerant enters the exhaust plenum 38 and is then discharged from the compressor 20 through the exhaust pipe 164. The compressed refrigerant also carries oil as it enters the exhaust plenum 38. Some of this oil accumulates at the bottom of the exhaust plenum 38 away from the refrigerant. The exhaust pipe 164 has an inlet port 356 located near the bottom of the exhaust plenum 38, so that the steam flow discharged through the exhaust pipe 164 carries with the oil accumulated at the bottom of the exhaust plenum 38. This limits the amount of oil that can accumulate in the exhaust plenum 38. Line 354 in FIG. 4 represents the top surface of the oil that accumulates in the exhaust chamber 38. During normal operation of the compressor 20, the upper surface 354 of oil that accumulates in the exhaust chamber 38 is typically slightly below the lowest portion of the inlet port 356.

  The exhaust chamber 38 defined by the end cap 160 and the back surface 358 of the stationary scroll 22 is a sealed chamber with only the exhaust port 30 and the inlet port 356 defining internal openings. As described above, the compressed refrigerant and oil enter the exhaust chamber 38 via the exhaust port 30 and the valve 34 prevents the refrigerant or oil from flowing from the exhaust chamber 38 to the port 30. An inlet port 56 to an exhaust pipe 164 through which compressed refrigerant and oil pass during discharge from the exhaust chamber 38 is positioned vertically below the port 30 and in the lower half of the exhaust chamber 38.

  The disclosed embodiment uses an exhaust pipe 164 that has an inner portion 350 that is positioned within the exhaust chamber 38 and has a substantially straight, short, straight length. An alternative embodiment of the compressor outlet is to have the pipe face down in the plenum, such that the inlet to the exhaust pipe continues to be located near the bottom of the exhaust plenum, limiting the amount of oil that can accumulate there, or It is also possible to use a pipe that enters the exhaust plenum in a vertically higher or lower position while extending upward. The outer portion 352 of the exhaust pipe 164 is bent at a 90 degree angle so that the outer portion of the pipe extends across the direction of the shaft 46 in the same substantially horizontal plane as the other portions of the exhaust pipe 164 There is also. The oil discharged from the compressor 20 through the exhaust pipe 164 is conveyed through the condensation circuit together with the refrigerant, and the refrigerant and oil return to the compressor 20 through the inlet pipe 86.

  Mounting brackets 206 and 208 are welded to the housing 88 to support the compressor 20 in a generally horizontal direction. However, as can be seen from FIG. 4, the mounting brackets 206, 208 have legs of different lengths so that the axis of the shaft 46 defined by the passage 54 is tilted while being substantially horizontal. Due to these shapes of the brackets 206, 208, the portion of the low pressure plenum 39 that is positioned under the bearing support 66 and that defines the sump 58 is the lowest portion of the compressor 20. The bottom brace members 210, 212 can be secured to the support members 214, 216 (FIG. 2) by a swaging operation. The mounting bracket used by the compressor 20 is U.S. Provisional Patent Application No. 60/412, filed September 23, 2002, entitled "Compressor Mounting Bracket and Manufacturing Method" by Skinner, which is incorporated herein by reference. No. 884 can be described. The use of other mounting brackets is also possible. For example, a mounting bracket formed by a support member similar to support members 214 and 216, but with greater rigidity by bending its outer end downward along the entire length of the support member may be It can also be used without a supporting cross brace.

  While this invention has been described as having an exemplary design, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles.

1 is an exploded view of a scroll compressor according to the present invention. FIG. FIG. 2 is an end view of the compressor shown in FIG. 1. FIG. 3 is a sectional view taken along line 3-3 of the compressor of FIG. FIG. 4 is a cross-sectional view of the compressor of FIG. 2 taken along line 4-4. It is an end view of an end cap. It is sectional drawing of an end cap.

Claims (15)

A compressor assembly for compressing gas and lubricated with oil,
A housing having an inlet tube;
And a motor, a substantially horizontal crankshaft, a fixed scroll member, and an orbiting scroll member, wherein the fixed scroll member and the orbiting scroll member engage with each other, and the fixed type A scroll member is closely attached to the housing to define a low pressure intake chamber and a high pressure exhaust chamber, the motor is disposed in the intake chamber, and the intake chamber is in fluid communication with the inlet pipe of the housing. The exhaust chamber has a second sump, defines a working space in which gas is compressed, and has a first port connected to the exhaust chamber. Accordingly, the oil and the compressed gas are sent from the working space to the exhaust chamber, and a horizontal scroll compressor mechanism ,
A second port defining an outlet in the housing through which oil and compressed gas are exhausted from the compressor assembly in the exhaust chamber ;
The second port is disposed vertically below the first port in the lower half of the exhaust chamber so that the oil accumulated in the exhaust chamber is compressed through the second port. Virtually all fluid entering the exhaust chamber enters the exhaust chamber through the first port and substantially all fluid exiting the exhaust chamber exits through the second port. Compressor assembly characterized by that.
  The valve further includes a valve that is sealably engageable with the first port, the valve allowing fluid to enter the exhaust chamber from the working space and fluid from the exhaust chamber to the working space. The compressor assembly of claim 1 wherein flow is blocked.   The compressor assembly of claim 1, further comprising an exhaust pipe, the exhaust pipe having an inlet positioned in the exhaust chamber, the inlet defining the second port.   The exhaust pipe extends through the housing, the housing includes a relatively flat portion adjacent to the exhaust pipe, and the exhaust pipe is welded to the housing at the flat portion. Compressor assembly. The compressor assembly of claim 1, wherein the first port is positioned within the fixed scroll member. A horizontal compressor assembly for compressing gas and lubricated with oil,
A high-pressure exhaust chamber and a low-pressure intake chamber, an inlet pipe through which fluid is communicated with the low-pressure chamber, a first oil sump at the bottom of the low-pressure chamber, and A hermetically sealed housing comprising a second oil sump at the bottom of the high pressure chamber, wherein the first oil sump and the second oil sump are partitioned;
Disposed within the housing, defining a work space in which functionally arranged and the gas inside between the exhaust chamber and the low pressure chamber of the high pressure is compressed, have a crankshaft which is substantially horizontally placed An inlet through which fluid is directly transmitted between the low pressure chamber and the working space; and a fixed scroll member that is in close contact with the housing for partitioning the second oil reservoir and the first oil reservoir. A scroll compressor mechanism having
Positioned in the low-pressure chamber, a motor for driving the compressor mechanism,
Ri connected to the said working space and said high pressure chamber, the compressed gas and oil is Ru sent from the work space to the high-pressure chamber, a first port,
Defining an outlet in the housing and Ri connected to said high pressure chamber, the vertically disposed below the first port is disposed vertically as the majority of the exhaust chamber of the high pressure is above , compressor assembly substantially all of the fluid entering the said exhaust chamber, characterized in that it comprises a second port through the first enters through the port, and is substantially all of the fluid exiting the exhaust chamber .   The compressor assembly of claim 6, further comprising an exhaust pipe, the exhaust pipe having an inlet positioned in the high pressure chamber, the inlet defining the second port.   8. The exhaust pipe of claim 7, wherein the exhaust pipe extends through the housing, the housing includes a relatively flat portion adjacent to the exhaust pipe, and the exhaust pipe is welded to the housing at the flat portion. Compressor assembly.   The compressor mechanism includes a fixed scroll member and an orbiting scroll member, and the fixed and orbiting scroll member are engaged with each other, and the first port is defined by the fixed scroll member. The compressor assembly according to claim 6.   The valve further includes a valve that is sealingly engageable with the first port, the valve allowing fluid to enter the high pressure chamber and fluid flow from the high pressure chamber through the first port. 10. The compressor assembly according to claim 9, wherein the compressor assembly is prevented. A method for controlling the movement and accumulation of oil in a compressor,
Providing a sealed, inlet housing defining a high pressure exhaust chamber and a low pressure intake chamber;
Supplying a compressor mechanism having an inlet pipe, a fixed scroll member in close contact with the housing for partitioning the high pressure chamber and the low pressure chamber, and a motor for driving the compressor mechanism in the housing ;
Providing an inlet pipe of the housing and an inlet of the compressor mechanism through which fluid is directly transmitted to the low pressure chamber;
Compressing gas with the compressor mechanism, discharging oil and compressed gas from the compressor mechanism to the high pressure chamber through a first port;
Accumulating oil at the bottom of the low pressure chamber;
Accumulating oil at the bottom of the high pressure chamber;
Partitioning the oil at the bottom of the high pressure chamber and the oil at the bottom of the low pressure chamber;
Arranging a second port vertically between the bottom and the first port in the high pressure chamber;
Limiting the accumulation of oil in the high pressure chamber by discharging excess oil with the compressed gas through the second port;
Enclosing the high pressure chamber, wherein substantially all fluid entering and exiting the high pressure chamber passes through the first and second ports through the high pressure chamber. How to enter and exit the high pressure chamber. The compressor mechanism supplies a motor for starting the process of claim 11 wherein said motor comprises placing in said low pressure chamber. The method of claim 12 , further comprising circulating oil in the low pressure chamber. The compressor mechanism includes a fixed scroll member and an orbiting scroll member, and the step of compressing gas by the compressor mechanism includes rotating the orbiting scroll member around the fixed scroll member. The method of claim 11 . A housing having a low pressure chamber and a high pressure chamber;
A fixed scroll member including an orbiting scroll member and a fixed scroll member, and having an inlet pipe through which fluid is communicated with the low pressure chamber and an outlet through which fluid is communicated with the high pressure chamber; A scroll compressor mechanism in which a member is in close contact with the housing to partition the high pressure chamber and the low pressure chamber;
A motor disposed in the low pressure chamber for driving the compressor mechanism;
A first sump in the low pressure chamber;
A second oil sump in the high pressure chamber and partitioned from the first sump by the fixed scroll member;
An intake inlet in the housing through which fluid is communicated to and from the low pressure chamber;
A compressor assembly comprising an exhaust outlet in the housing, wherein the high pressure chamber and fluid are communicated to each other and are arranged vertically below the compressor mechanism outlet;
Compressor assembly wherein oil in said second sump exits said high pressure chamber through said housing outlet.

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