JP2013096330A - Compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve flexibility with respect to arrangement of an oil separation unit without increasing a physical size of a variable capacitor compressor.SOLUTION: Within an arc-shaped upper region of a discharge chamber 142, two ends in a direction of an arc of one space that is defined by a partition member 150 are defined by a first partition wall 104h and a second partition wall 104i, and a first passage 104f1 is formed to be partitioned from the other discharge-chamber-side space. A middle part in the direction of the arc of the first passage 104f1 is partitioned by a third partition wall 104j so as to form a refrigerant flow path having a prescribed opening area. An upstream-side passage part of the first passage 104f1 between the first partition wall 104h and the third partition wall 104j is made to communicate with the discharge chamber 142 by means of a second passage 104f2 and functioned as an oil separation chamber, and a downstream-side passage part between the second partition wall 104i and the third partition wall 104j is made to communicate with a third passage 104f3 and functioned as a connecting passage connecting the oil separation chamber and the third passage.

Description

  The present invention relates to a compressor used in an air conditioner system for a vehicle and the like, and more particularly, to an arrangement structure of an oil separation portion arranged in a path for discharging a working fluid (refrigerant).

  As a compressor of this type, in the compressor disclosed in Patent Document 1, a suction chamber (13, 20) is arranged in a central region of a cylinder head (housings 5, 6), and the diameter of the suction chamber (13, 20). Discharge chambers (17, 25) arranged in an annular shape so as to surround the outer side in the direction are formed.

  An oil separation mechanism (18, 37), an oil storage chamber (storage chamber 14, 21), and an oil return passage (ring oil holes 15d, 22d) are formed in the cylinder head (housing 5, 6).

JP-A-7-332239

  In the above compressor, the oil separation mechanism (18, 37) is provided in the discharge chamber (17, 25) near the communication port (3a, 4a) where the discharge passage (35a, 35b) opens. Thus, no consideration is given to disposing the oil separation mechanism away from the position where the discharge passage opens in the discharge chamber.

  The cylinder head may be provided with a connection port for connecting to an external refrigerant circuit, and an attachment part for bolting the compressor on the engine side. In addition, a variable capacity compressor is also provided with a control valve and a check valve. In many cases, it is difficult to dispose the oil separation mechanism and the oil storage chamber in the cylinder head.

  The present invention has been made by paying attention to such a conventional problem. Even when the oil separation mechanism is arranged, the oil separation mechanism can be easily formed while maintaining the compactness of the compressor, and the degree of freedom in arrangement can be reduced. An object is to provide an improved compressor.

The compressor according to the present invention is
A suction chamber disposed in a central portion; a discharge chamber disposed in an annular shape surrounding a radially outer side of the suction chamber; a suction passage for introducing refrigerant sucked from an external refrigerant circuit into the suction chamber; and the discharge A discharge passage for sending the refrigerant discharged to the chamber to an external refrigerant circuit; an oil separation chamber arranged in the middle of the discharge passage for separating oil from the refrigerant; and oil separated in communication with the oil separation chamber. A housing in which an oil storage chamber and an oil return passage for returning the oil in the oil storage chamber to the low pressure source side are formed;
A drive shaft rotatably supported at the center of the housing;
A compression mechanism that compresses the refrigerant sucked from the suction chamber by the rotation of the drive shaft and discharges the refrigerant to the discharge chamber, and is further configured as follows.

The discharge passage includes a first passage partitioned from the discharge chamber in an arcuate upper region of the discharge chamber arranged in an annular shape, a second passage communicating the first passage and the discharge chamber, A third passage communicating the first passage and the external refrigerant circuit,
A partition member for partitioning the upper region into spaces on both sides in the axial direction of the drive shaft is disposed in the arc-shaped upper region of the discharge chamber, and both ends in the arc direction of the partitioned space are first partitions. Partitioning with a wall and a second partition wall to form the first passage partitioned with the other discharge chamber side space;
The arcuate intermediate portion of the first passage is partitioned by a third partition wall so that a refrigerant flow path having a predetermined opening area is formed,
An upstream passage portion between the first partition wall and the third partition wall of the first passage is communicated with the discharge chamber by the second passage to function as an oil separation chamber;
As a connection passage connecting the oil separation chamber and the third passage by connecting a downstream passage portion between the second partition wall and the third partition wall of the first passage to the third passage. Made it work.

  The partition member and each partition wall can easily form the oil separation chamber and the connection passage in the region of the discharge chamber, and the connection passage can easily connect the oil separation chamber to the third passage. The degree of freedom is improved. Further, by forming the oil separation chamber and the connection passage, the size of the compressor does not increase.

Sectional drawing of the compressor in an embodiment The figure of the open end side of the cylinder head in an embodiment AA sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG. Perspective view of partition member The top view which shows another form of a division member

Hereinafter, embodiments of the present invention will be described in detail.
1 is a cross-sectional view of a compressor (particularly a variable capacity compressor) in the embodiment, FIG. 2 is a view of an open end side of the cylinder head in the embodiment, FIG. 3 is a cross-sectional view along AA in FIG. 2 is a cross-sectional view taken along line BB in FIG. 2, FIG. 5 is a cross-sectional view taken along line CC in FIG. 2, and FIG. 6 is a perspective view of a partition member.

  The variable capacity compressor 100 includes a cylinder block 101 having a plurality of cylinder bores 101a, a front housing 102 provided at one end of the cylinder block 101, and a cylinder provided at the other end of the cylinder block 101 via a valve plate 103. And a head 104.

  A drive shaft 110 is provided across the inside of the crank chamber 140 defined by the cylinder block 101 and the front housing 102, and a swash plate 111 is disposed around the center thereof. The swash plate 111 is connected to a rotor 112 fixed to the drive shaft 110 via a link mechanism 120, and the inclination angle can be changed along the drive shaft 110.

  The link mechanism 120 includes a first arm 112 a projecting from the rotor 112, a second arm 111 a projecting from the swash plate 111, and one end side rotating with respect to the first arm 112 a via the first connecting pin 122. The link arm 121 is movably connected and the other end is rotatably connected to the second arm 111 a via a second connection pin 123.

  The through hole 111b of the swash plate 111 is formed so that the swash plate 111 can tilt within the range of the maximum inclination angle (θmax) and the minimum inclination angle (θmin). The through hole 111b contacts the drive shaft 110. A maximum inclination restriction part and a minimum inclination restriction part are formed. When the inclination angle of the swash plate when the swash plate 111 is orthogonal to the drive shaft 110 is 0 °, the minimum inclination restriction portion of the through hole 111b is formed so that the inclination of the swash plate 111 can be displaced to almost 0 °. ing.

  Between the rotor 112 and the swash plate 111, an inclination reduction spring 114 that urges the swash plate 111 toward the minimum inclination angle to reach the minimum inclination angle is mounted, and between the swash plate 111 and the spring support member 116. An inclination increasing spring 115 is attached to urge the swash plate 111 in an increasing direction. Since the urging force of the inclination increasing spring 115 is set to be larger than the urging force of the inclination decreasing spring 114 at the minimum inclination angle, the swash plate 111 has the inclination decreasing spring 114 and the inclination increasing spring 115 when the drive shaft 110 is not rotating. It is located at an inclination angle that balances the urging force.

  One end of the drive shaft 110 extends through the inside of the boss portion 102a protruding to the outside of the front housing 102, and is connected to a power transmission device (not shown). A shaft seal device 130 is inserted between the drive shaft 110 and the boss portion 102a to shut off the inside and the outside. The drive shaft 110 and the rotor 112 are supported by bearings 131 and 132 in the radial direction, and supported by a bearing 133 and a thrust plate 134 in the thrust direction. The clearance between the contact portion of the thrust plate 134 of the drive shaft 110 and the thrust plate 134 is adjusted to a predetermined clearance by an adjustment screw 135. Therefore, the power from the external drive source is transmitted to the power transmission device, and the drive shaft 110 can rotate in synchronization with the power transmission device.

  A piston 136 is disposed in the cylinder bore 101a, and an outer peripheral portion of the swash plate 111 is accommodated in an inner space of an end portion of the piston 136 that protrudes toward the crank chamber 140. The swash plate 111 includes a pair of shoes 137. Thus, the piston 136 is linked. Therefore, the piston 136 can reciprocate in the cylinder bore 101a by the rotation of the swash plate 111.

  In the cylinder head 104, a suction chamber 141 defined by an annular partition 104a and a discharge chamber 142 defined by the partition 104a and the outer peripheral wall 104b and surrounding the suction chamber 141 in an annular shape are formed at the center (see FIG. 2). The suction chamber 141 communicates with the cylinder bore 101a through a communication hole 103a provided in the valve plate 103 and a suction valve (not shown) formed in the suction valve forming plate, and the discharge chamber 142 communicates with the cylinder bore 101a. Are communicated via a discharge valve (not shown) formed on the discharge valve forming plate and a communication hole 103 b provided in the valve plate 103.

  The front housing 102, the cylinder block 101, the suction valve forming plate, the valve plate 103, the discharge valve forming plate, and the cylinder head 104 are fastened and compressed by a plurality of through bolts 105 via a center gasket, cylinder gasket, and head gasket (not shown). A machine housing is formed.

  The cylinder head 104 is formed with a suction port 104c connected to the suction side external refrigerant circuit, and a suction passage 104d connecting the suction port 104c and the suction chamber 141, whereby the suction chamber 141 is connected to the suction side refrigerant circuit of the air conditioner system. It is connected. The suction passage 104 d extends linearly from the outside in the radial direction of the cylinder head 104 so as to cross a part of the discharge chamber 142.

  The discharge chamber 142 is connected to a discharge-side external refrigerant circuit of the air conditioner system via a discharge passage 104f (104f1, 104f2, 104f3) and a discharge port 104e described later.

  The cylinder head 104 is further provided with a control valve 300. The control valve 300 adjusts the opening of the communication passage 145 that connects the discharge chamber 142 and the crank chamber 140 to control the amount of discharge gas introduced into the crank chamber 140. The refrigerant in the crank chamber 140 flows to the suction chamber 141 via the communication passage 101 c, the space 146, and the orifice 103 c formed in the valve plate 103.

  Therefore, the discharge capacity of the variable capacity compressor 100 can be variably controlled by changing the pressure of the crank chamber 140 by the control valve 300 and changing the inclination angle of the swash plate 111, that is, the stroke of the piston 136.

  When the air conditioner is operating, that is, when the variable capacity compressor 100 is in an operating state, the energization amount of the solenoid built in the control valve 300 is adjusted based on the external signal, and the discharge capacity is adjusted so that the pressure in the suction chamber 141 becomes a predetermined value. Variable control. The control valve 300 can optimally control the suction pressure according to the external environment.

Next, configurations of the discharge passage and the oil separation chamber will be described with reference to FIGS. 2 to 6 in addition to FIG.
In the upper region of the cylinder head 104, there are formed a discharge port 104e connected to the discharge-side external refrigerant circuit, and a discharge passage 104f (104f1, 104f2, 104f3) connecting the discharge port 104e and the discharge chamber 142. The chamber 142 is connected to a discharge side refrigerant circuit of the air conditioner system. In addition, the upper part (or lower part) said here is based on the state by which the compressor is mounted | worn with the mounting object.

  The discharge passage 104f includes a first passage 104f1 partitioned from the discharge chamber 142 by a partition member 150 in an upper region of the discharge chamber 142, a second passage 104f2 communicating the first passage 104f1 and the discharge chamber 142, and a first passage. The third passage 104f3 communicates between 104f1 and the external refrigerant circuit.

  The first passage 104f1 is partitioned at both ends by a first partition wall 104h and a second partition wall 104i extending from the bottom wall 104g of the cylinder head 104 (projecting inward), and a peripheral wall (outer periphery) on the radially outer side of the discharge chamber. Wall 104b side), the peripheral wall on the radially inner side of the discharge chamber (partition wall 104a side), the opening defined by the first partition wall 104h and the second partition wall 104i is covered with the partition member 150 and partitioned from the discharge chamber 142. Yes. In other words, a partition member 150 that partitions the upper region into spaces on both sides in the axial direction of the drive shaft 110 is disposed in the arc-shaped upper region of the discharge chamber 142, and the arc direction of the partitioned one space By dividing both ends by the first partition wall 104h and the second partition wall 104i, a first passage 104f1 partitioned from the other discharge chamber side space is formed.

  A third partition wall 104j extends from the bottom wall 104g of the cylinder head 104 between the first partition wall 104h and the second partition wall 104i, and a predetermined distance is provided between the top of the third partition wall 104j and the partition member 150. The top height of the third partition wall 104j is set so as to form a flow path having an opening area (see FIG. 3). Accordingly, the first passage 104f1 is partitioned into a space 104f1a partitioned by the first partition wall 104h and the third partition wall 104j, and a space 104f1b partitioned by the third partition wall 104j and the second partition wall 104i.

  The partition member 150 includes a flat plate 150a that partitions the first passage 104f1 and the discharge chamber 142, and a plurality of side plates 150b that rise from the peripheral edge of the flat plate 150a, and has an arc shape that matches the annular shape of the discharge chamber 142. Are fitted in the discharge chamber 142 (see FIG. 6). The partition member 150 is made of, for example, a polyamide-based or polyphenylene sulfide-based resin material.

  The partition member 150 is prevented from coming off when the valve plate 103 side is joined to the cylinder head 104 (directly, the end of the side plate 150b is kept from coming into contact with the head gasket).

  The cylinder head 104 is formed with a positioning surface 104k for positioning the flat plate 150a by contacting the flat plate 150a. When the flat plate 150a is positioned in contact with the positioning surface 104k and positioned in the cylinder head 104, the side plate 150b The height of the end is set at substantially the same position as the open end surface of the cylinder head 104 (see FIG. 4). The substantially the same position includes a case where it is slightly lower and a case where it is slightly higher than the open end surface of the cylinder head 104.

  For example, when the deformation of the side plate 150b is not allowed, the end of the side plate 150b is set to a height slightly lower than the open end surface of the cylinder head 104, and when the deformation of the side plate 150b is allowed, the end of the side plate 150b is set. Allows a position slightly higher than the open end face of the cylinder head 104.

  When the deformation of the side plate 150b is allowed, if the end of the side plate 150b is set to a position slightly higher than the open end surface of the cylinder head 104, the partition member 150 is pressed against the positioning surface 104k when the housing is fastened. It is sandwiched between the cylinder head 104 and the valve plate 103, and the partition member 150 can be securely held in the cylinder head 104 (the end of the side plate 150b directly contacts the head gasket). Further, the side plate 150b may be formed so as to press the radially outer peripheral wall (the outer peripheral wall 104b side) of the discharge chamber 142 and the radially inner peripheral wall (the partition wall 104a side) of the discharge chamber 142. Even if it does in this way, the division member 150 does not rattle and is reliably hold | maintained in a cylinder head.

  By fitting the partition member 150 into the discharge chamber 142, the second passage 104f2 is formed between the peripheral wall (on the outer peripheral wall 104b side) of the discharge chamber 142 in the vicinity of the third partition wall 104j and the peripheral edge of the flat plate 150a. It is formed between the discharge chamber 142 and the space 104f1a of the first passage 104f1 (see FIG. 2).

The third passage 104f3 communicates with the discharge-side external refrigerant circuit connected to the space 104f1b of the first passage 104f1 and the discharge port 104e (see FIG. 4).
A space 104f1a defined by the first partition wall 104h and the third partition wall 104j communicates with the oil storage chamber 104n via the communication hole 104m (see FIG. 5). The oil storage chamber 104n forms a cylindrical space, extends from the lower portion of the first partition wall 104h toward the lower side of the cylinder head 104, and is sealed by a sealing member 160 from the radially outer side of the cylinder head 104. . The lower region of the oil storage chamber 104n communicates with the suction chamber 141 through the oil return passage 104p. A throttle (not shown) is disposed in the oil return passage 104p.

The communication hole 104m passes through the first partition wall 104h and opens at one end to the space 104f1a, and the opening end is located in the vicinity of the flat plate 150a of the partition member 150.
The first partition wall 104h is disposed below the third partition wall 104i, and the second passage 104f2 is in the vicinity of the third partition wall 104j along the peripheral wall (outer peripheral wall 104b side) on the radially outer side of the discharge chamber 142. Is formed. Therefore, the refrigerant that has flowed into the space 104f1a from the discharge chamber 142 through the second passage 104f2 flows toward the bottom wall 104g of the cylinder head 104 along the outer peripheral wall 104b side, and then flows from the bottom wall 104g to the first partition. A flow toward the flat plate 150a is generated along the wall 104h.

After that, it flows into the space 104f1b through a flow path formed between the top of the third partition wall 104j and the partition member 150.
The oil contained in the refrigerant flow is effectively separated in the flow in the space 104f1a, and the separated oil is collected on the first partition wall 104h side and stored in the oil storage chamber 104n through the communication hole 104m. Is done. The oil stored in the oil storage chamber 104n is returned to the suction chamber 141 through the oil return passage 104p.

That is, the space 104f1a is an oil separation chamber, and the space 104f1b is a connection passage that connects the oil separation chamber and the third passage 104f3.
As described above, the first passage 104f1 includes the oil separation chamber (space 104f1a) and the connection passage (space 104f1b) connecting the oil separation chamber and the third passage 104f3. Even if the oil separation chamber is spaced apart, the oil separation chamber can be easily connected to the third passage 104f3 by changing the position of the second partition wall 104i to expand the space 104f1b. In other words, even when the design of the formation position of the discharge port 104e and the third passage 104f3 connected to the discharge-side external refrigerant circuit is changed due to restrictions on the installation space, shape, etc. of the compressor, the oil separation chamber can be It can arrange | position in a position and the freedom degree of arrangement | positioning improves.

  Further, the oil separation chamber and the connection passage can be easily formed by a partition wall extending from the bottom wall of the cylinder head 104 and a partition member 150 fitted to the discharge chamber 142, and further in an area in the discharge chamber 142. Since it is formed, the physique of the compressor 100 is not increased.

  Further, according to the present embodiment, the first partition wall 104h is disposed below the third partition wall 104j, and the communication path (communication hole 104m) that communicates between the oil separation chamber (space 104f1a) and the oil storage chamber 104n. Is opened in or near the first partition wall 104h, and the second passage 104f2 is opened in the vicinity of the third partition wall 104j, thereby moving the second passage 104f2 away from the opening end of the communication passage (communication hole 104m). Therefore, in the vicinity of the opening end, the influence of the turbulent flow generated when the refrigerant flows from the discharge chamber 142 into the oil separation chamber (the space 104f1a) can be reduced, and as a result, the oil easily collects on the first partition wall 104h side. Oil can be effectively stored in the oil storage chamber 104n.

  In addition, according to the present embodiment, the second passage 104f2 is formed between the radially outer peripheral wall 104b of the discharge chamber 142 and the peripheral edge of the partition member 150, so that the second passage 104f2 can be easily formed. Further, since the refrigerant in the discharge chamber 142 flows into the oil separation chamber (space 104f1a) along the outer peripheral wall 104b of the discharge chamber 142, the refrigerant is directed from the outer peripheral wall 104b to the opening end communicating with the oil storage chamber 104n via the bottom wall. Thus, oil separation is effectively performed in the oil separation chamber (space 104f1a).

  Further, according to the present embodiment, the partition member 150 includes the flat plate 150a that partitions the first passage 104f1 and the discharge chamber 142, and the plurality of side plates 150b that rise from the peripheral edge of the flat plate 150a, and the discharge chamber 142 has an annular shape. When the flat plate 150a is positioned in the cylinder head 104 by partitioning the first passage 140f1 and the discharge chamber 142, the end portion of the side plate is formed. Since the height is set so as to be substantially the same position as the open end surface of the cylinder head 104, a member for fixing the partition member 150 to the cylinder head 104 becomes unnecessary, and an increase in cost can be suppressed.

  Further, according to the present embodiment, the partition member 150 is formed of a resin material, and when the partition member 150 is fitted into the discharge chamber 142, the side plate is disposed on the radially outer peripheral wall 104 b and the radially inner side of the discharge chamber 142. By being formed so as to press the peripheral wall 104a, the partition member 150 does not rattle and is held by the cylinder head 104.

  Further, according to the present embodiment, the partition member 150 is formed of a resin material, and when the housing (cylinder head 104, cylinder block 101, front housing 102) is fastened, the partition member 150 includes the cylinder head 104 and the valve plate 103. , The partition member 150 is pressed against the positioning portion in the cylinder head 104, so that the partition member 150 can be securely held in the cylinder head without rattling.

However, the present invention is not limited to the above embodiment.
For example, the partition member may be fixed to the cylinder head by a fixing member such as a screw.

  Further, as shown in FIG. 7, the first partition wall 200a and the second partition wall 200b can be formed by bending both end portions of the partition member 200 toward the bottom wall 104g side of the cylinder head 104. The portion can be engaged with a groove formed in the bottom wall 104g of the cylinder head 104 to prevent it from coming off.

Similarly, as shown in FIG. 7, the third partition wall 200 c can be formed by bending an intermediate portion of the partition member 200.
Further, the partition member is not limited to the resin material, and may be formed of other materials such as a metal plate.

Further, a through hole may be formed in the flat plate 150a of the partition member 150 to form the second communication path 104f2.
Moreover, although the variable capacity compressor was demonstrated in the above embodiment, a fixed capacity compressor may be sufficient and this invention is applicable to the whole compressor.

  Thus, the illustrated embodiments are merely illustrative of the present invention, and the present invention includes various improvements made by those skilled in the art within the scope of the claims, in addition to those directly illustrated by the described embodiments. -Needless to say, it encompasses changes.

100 Variable capacity compressor 101 Cylinder block 101a Cylinder bore 102 Front housing 103 Valve plate 104 Cylinder head 104a Partition wall 104b Outer peripheral wall 104c Suction port 104d Suction passage 104e Discharge port 104f Discharge passage 104f1 First passage 104f2 Second passage 104f1a Space (oil separation chamber) )
104f1b space (connection passage)
104f3 Third passage 104g Cylinder head bottom wall 104h First partition wall 104i Second partition wall 104j Third partition wall 110 Drive shaft 111 Swash plate 112 Rotor 120 Link mechanism 136 Piston 140 Crank chamber 141 Suction chamber 142 Discharge chamber 150 Partition member 150a Flat plate 150b Side plate

Claims (7)

A suction chamber disposed in a central portion; a discharge chamber disposed in an annular shape surrounding a radially outer side of the suction chamber; a suction passage for introducing refrigerant sucked from an external refrigerant circuit into the suction chamber; and the discharge A discharge passage for sending the refrigerant discharged to the chamber to an external refrigerant circuit; an oil separation chamber arranged in the middle of the discharge passage for separating oil from the refrigerant; and oil separated in communication with the oil separation chamber. A housing in which an oil storage chamber and an oil return passage for returning the oil in the oil storage chamber to the low pressure source side are formed;
A drive shaft rotatably supported at the center of the housing;
A compressor having a compression mechanism that compresses the refrigerant sucked from the suction chamber by the rotation of the drive shaft and discharges the refrigerant to the discharge chamber,
The discharge passage includes a first passage partitioned from the discharge chamber in an arcuate upper region of the discharge chamber arranged in an annular shape, a second passage communicating the first passage and the discharge chamber, A third passage communicating the first passage and the external refrigerant circuit,
A partition member for partitioning the upper region into spaces on both sides in the axial direction of the drive shaft is disposed in the arc-shaped upper region of the discharge chamber, and both ends in the arc direction of the partitioned space are first partitions. Partitioning with a wall and a second partition wall to form the first passage partitioned with the other discharge chamber side space;
The arcuate intermediate portion of the first passage is partitioned by a third partition wall so that a refrigerant flow path having a predetermined opening area is formed,
An upstream passage portion between the first partition wall and the third partition wall of the first passage is communicated with the discharge chamber by the second passage to function as an oil separation chamber;
As a connection passage connecting the oil separation chamber and the third passage by connecting a downstream passage portion between the second partition wall and the third partition wall of the first passage to the third passage. A compressor characterized by functioning.   The compressor according to claim 1, wherein at least one of the first partition wall, the second partition wall, and the third partition wall is formed by extending a bottom wall of the housing.   The first partition wall is disposed below the third partition wall, and a communication passage that communicates the oil separation chamber and the oil storage chamber opens at or near the first partition wall, and the second passage The compressor according to claim 1 or 2, wherein is opened in the vicinity of the third partition wall.   3. The compressor according to claim 2, wherein the second passage is formed between a radially outer peripheral wall of the discharge chamber and a peripheral edge of the partition member. The housing surrounds the cylinder head in which the suction chamber, the discharge chamber, the suction passage, the discharge passage, the oil separation chamber, the oil storage chamber, and the oil return passage are formed, and a compression mechanism is formed surrounding the outer side in the radial direction of the drive shaft And a front housing that is provided at one end of the cylinder block and defines a crank chamber in cooperation with the cylinder block, and between the cylinder head and the cylinder block. A valve plate on which an intake valve and a discharge valve are formed is sandwiched between
The partition member includes a flat plate that partitions the first passage and the discharge chamber, and a plurality of side plates that rise from a peripheral edge of the flat plate, and has a shape that matches the annular shape of the discharge chamber. It is fitted to
When the flat plate is positioned in the cylinder head by dividing the first passage and the discharge chamber, the height of the end of the side plate is set to be substantially the same as the open end surface of the cylinder head. The compressor according to any one of claims 1 to 4, wherein the compressor is provided.   The partition member is formed of a resin material, and when the partition member is fitted into the discharge chamber, the side plate is formed to press the radially outer and radially inner peripheral walls of the discharge chamber. The compressor according to claim 5.   The partition member is formed of a resin material, and the partition member is sandwiched between the cylinder head and the valve plate when the housing is fastened. Compressor.