CN103423033A - Rotary valve type membrane carburetor - Google Patents
Rotary valve type membrane carburetor Download PDFInfo
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- CN103423033A CN103423033A CN2013103463547A CN201310346354A CN103423033A CN 103423033 A CN103423033 A CN 103423033A CN 2013103463547 A CN2013103463547 A CN 2013103463547A CN 201310346354 A CN201310346354 A CN 201310346354A CN 103423033 A CN103423033 A CN 103423033A
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- rotating shaft
- swing frame
- spindle
- plunger
- rotary valve
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Abstract
The invention discloses a rotary valve type membrane carburetor. The rotary valve type membrane carburetor is characterized in that a deepening staring device is included, the deepening staring device comprises a rocker arm, a rotating shaft and a rocker arm torsional spring, the rotating shaft is rotatably arranged in boss hole formed in one side of a fixing plate, the rotating shaft is fixedly connected with the rocker arm, the rotating shaft is returned through the rocker arm torsional spring after the rotating shaft rotates, the head portion of the rotating shaft is horizontally arranged below a swing frame, and the head portion of the rotating shaft is provided with a high spot and a low spot in the circumferential direction; when a motor is in a stage of igniting and starting and the swing frame is located at the lower limit position, after the rotating shaft rotates, the high spot of the head portion of the rotating shaft drives the swing frame, a plunger and an oil needle to move upwards simultaneously, wherein the plunger and the oil needle are connected with the swing frame. By means of the rotary valve type membrane carburetor, the purpose of deepening starting of the motor in a low-temperature environment is achieved.
Description
Technical field
What the present invention relates to is a kind of improvement invention of Carburetor.
Background technique
Carburetor is under the vacuum action produced in engine operation, the mechanical device that a certain proportion of gasoline is mixed with air.Carburetor is as a kind of mechanical device of precision, and it can be referred to as " heart " of motor to the important function of motor.Its complete device should comprise starting drive, idling device, moderate duty device, full load device, accelerating unit.Starting drive is that the device of utmost point rich mixture is provided when engine cold-start; Idling device is when idle, to provide less and the device of dense mixed gas, to maintain the stable minimum speed of motor; Accelerating unit is the device of extra fuel feeding when throttle opening increases suddenly when automobile accelerates, and engine speed and power can be increased rapidly; Some Carburetors also comprise enrichment-system, and the device of extra fuel feeding when enrichment-system is the large load of motor, to make up the deficiency of main fuel feeding.Carburetor can be according to the different operating status requirements of motor, and automatic mixing goes out corresponding concentration, the mixed gas of the corresponding amount of output, for the mixed gas that makes to allot mix more even, Carburetor also possesses the effect of the fuel-oil atmozation of making, and for machine, normally moves.The rotary valve Membranvergaser is the most common a kind of in Carburetor, its structure is: comprise body, fixed plate, plunger and swing frame, plunger rotatably arranges in body, fixed plate is in the end face fixed installation of body, swing frame is located at the fixed plate top and is connected with plunger, the bottom surface of swing frame is provided with cam path, cam path props up on push rod, the push rod fixed installation, be provided with spindle in the middle of plunger, spindle is fixedly connected with swing frame by the spindle seat, the bottom of spindle is through in the spindle hole of main nozzle assembly, spindle is up and down in the spindle hole to be regulated the jet aperture, when swing frame rotates, cam path slides along thimble, swing frame drives plunger and spindle is done again the oscilaltion campaign when rotating, after swing frame rotates by plunger torsion spring return.Its working principle is: at motor in ignition trigger during the stage, swing frame is in lower position, and now plunger only has very small channel to communicate by carburetor air mouth and air outlet, and the jet aperture is also at minimum position, for motor provides utmost point rich mixture, be beneficial to the engine ignition success; After the engine ignition success, swing frame is rotated under the pulling of acceleration cable, drive plunger and spindle and make again shifting movement when rotating, the plunger rotation can make the passage between carburetor air mouth and air outlet strengthen, move the aperture that can make jet on spindle and hold greatly, motor enters load stage.Above-mentioned rotary valve Membranvergaser, although the start up period can under low temperature environment, also can start for motor provides utmost point rich mixture, while starting below lower than design temperature, will encounter difficulties.
Summary of the invention
In view of the problem that current known technology exists, the technical problem to be solved in the present invention is to be to provide a kind of rotary valve Membranvergaser that can under low temperature environment, realize that the motor enriching starts.
The present invention implements by the following technical programs:
The rotary valve Membranvergaser, comprise body, fixed plate, plunger and swing frame, plunger rotatably arranges in body, fixed plate is in the end face fixed installation of body, swing frame is located at the fixed plate top and is connected with plunger, the bottom surface of swing frame is provided with cam path, cam path props up on push rod, the push rod fixed installation, be provided with spindle in the middle of plunger, spindle is fixedly connected with swing frame by the spindle seat, the bottom of spindle is through in the spindle hole of main nozzle assembly, spindle is up and down in the spindle hole to be regulated the jet aperture, when swing frame rotates, cam path slides along thimble, swing frame drives plunger and spindle is done again the oscilaltion campaign when rotating, after swing frame rotates by plunger torsion spring return, it is characterized in that: the rotary valve Membranvergaser is provided with the enriching starting drive, this device comprises rocking arm, rotating shaft and rocking arm torsional spring, in the boss hole that rotating shaft is provided with in fixed plate one side, rotatably arrange, rotating shaft is fixedly connected with rocking arm, rotating shaft rotate after by the rocking arm torsional spring return, the head level of rotating shaft is located at the swing frame below, the head of rotating shaft along the circumferential direction is provided with spikes/low-points, at motor, in ignition trigger stage, swing frame during in lower position, after rotating shaft is rotated, the height point of shaft head promotes swing frame and reaches the plunger and the spindle that are connected with swing frame and move simultaneously.
The rotary valve Membranvergaser of technique scheme, can under low temperature environment, realize that the motor enriching starts, its working principle is: when engine cold-start, if ambient temperature is very low, the cold start-up of motor will encounter difficulties, particularly when ambient temperature during lower than design temperature, motor just almost can not start so, the main cause of its appearance is the concentration of mixed gas or not, it is gasoline accounting or low in mixed gas, at this moment, can rotating shaft be rotated by pulling rocking arm, rotating shaft will promote to move on swing frame after rotating, and then move on drive plunger and spindle, move on plunger substantially and can not change the passage between carburetor air mouth and air outlet, moving the aperture that can make jet on spindle holds greatly, so just improved the gasoline concentration of mixed gas, thereby make motor be easier to start, through reality, test, still can carry out normal cold start-up at the following motor of subzero 50oC.
As optimal technical scheme, in echelon, the low spot of shaft head is on trapezoidal bottom for the head design of rotating shaft, and high point is on trapezoidal waist.The purpose that above-mentioned design reaches is, the low spot of shaft head is on trapezoidal bottom, high point is on trapezoidal waist, and between trapezoidal bottom and trapezoidal waist, angle is less than 90 degree, so play self-locking action when high point contacts with the swing frame bottom surface after rotating shaft is rotated, rotating shaft can automatic rotary, and, after the cold start-up success, acceleration cable pulls swing frame to rotate, the bottom surface disengaging of the rear swing frame of swing frame lifting contacts with shaft head, now rotating shaft just can be under the effect of rocking arm torsional spring self-return, be equivalent to both and there is linkage function.
The accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 is front view of the present invention,
The plan view that Fig. 2 is Fig. 1,
The A-A view that Fig. 3 is Fig. 1,
The B-B view part that Fig. 4 is Fig. 2,
The transverse views that Fig. 5 is Fig. 4 shaft head.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail:
As shown in the figure, rotary valve Membranvergaser of the present invention, comprise body 1, fixed plate 6, plunger 16, swing frame 4 and enriching starting drive, plunger 16 is in the interior rotatable setting of body 1, fixed plate 6 is in the end face fixed installation of body 1, swing frame 4 is located at fixed plate 6 tops and is connected with plunger 16, the bottom surface of swing frame 4 is provided with cam path 14, cam path 14 props up on push rod 13, push rod 13 fixed installations (moulding that push rod 13 and fixed plate 6 are structure as a whole), be provided with spindle 3 in the middle of plunger 16, spindle 3 is fixedly connected with swing frame 4 by spindle seat 11, the bottom of spindle 3 is through in the spindle hole of main nozzle assembly 2, spindle 3 is up and down in the spindle hole to be regulated jet 10 apertures, when swing frame 4 rotates, cam path 14 slides along thimble 13, swing frame 4 drives plunger 16 and spindle 3 is done again the oscilaltion campaign when rotating, after swing frame 4 rotates by plunger torsion spring 15 returns, described enriching starting drive comprises rocking arm 8, rotating shaft 5 and rocking arm torsional spring 7, in boss 12 holes that rotating shaft 5 is provided with in fixed plate 6 one sides, rotatably arrange, rotating shaft 5 is fixedly connected with rocking arm 8, rotating shaft 5 rotate after by rocking arm torsional spring 7 returns, rocking arm torsional spring 7 one ends are overlapped on fixed plate 6, one end is overlapped on rocking arm 8, the head 5a level of rotating shaft is located at swing frame 4 belows, the head 5a of rotating shaft along the circumferential direction is provided with high point 18 and low spot 17, the head 5a of rotating shaft is designed to trapezoidal, the low spot 17 of shaft head is on trapezoidal bottom, high point 18 is on trapezoidal waist, at motor, in ignition trigger stage, swing frame 4 during in lower position, after rotating shaft 5 is rotated, the height point 18 of shaft head promotes swing frames 4 and reaches the plunger 16 and the spindle 3 that are connected with swing frame and move simultaneously.
The present invention is work like this: under the home condition, motor is in ignition trigger during the stage, swing frame 4 is in lower position, now plunger 16 only has very small channel to communicate by carburetor air mouth and air outlet, jet 10 apertures are also at minimum position, for motor provides utmost point rich mixture, be beneficial to the engine ignition success; After the engine ignition success, swing frame 4 is rotated under the pulling of acceleration cable, drive plunger 16 and spindle 3 and make again shifting movement when rotating, plunger 16 rotations can make the passage between carburetor air mouth and air outlet strengthen, move the aperture that can make jet 10 on spindle 3 and hold greatly, motor enters load stage; And in the situation that ambient temperature is very low, engine cold-start encounters difficulties, at this moment can rotating shaft 5 be rotated by pulling rocking arm 8, rotating shaft 5 will promote after rotating to move on the swing frame 4 of lower position, and then move on drive plunger 16 and spindle 3, move substantially and can not change the passage between carburetor air mouth and air outlet on plunger 16, move the aperture that can make jet 10 on spindle 3 and hold greatly, so just improved especially the concentration of mixed gas, thereby make motor be easy to start.
Claims (2)
1. rotary valve Membranvergaser, comprise body (1), fixed plate (6), plunger (16) and swing frame (4), plunger (16) is rotatable the setting in body (1), fixed plate (6) is in the end face fixed installation of body (1), swing frame (4) is located at fixed plate (6) top and is connected with plunger (16), the bottom surface of swing frame (4) is provided with cam path (14), cam path (14) props up on push rod (13), push rod (13) fixed installation, be provided with spindle (3) in the middle of plunger (16), spindle (3) is fixedly connected with swing frame (4) by spindle seat (11), the bottom of spindle (3) is through in the spindle hole of main nozzle assembly (2), spindle (3) is up and down in the spindle hole to be regulated jet (10) aperture, when swing frame (4) rotates, cam path (14) slides along thimble (13), swing frame (4) drives plunger (16) and spindle (3) is done again the oscilaltion campaign when rotating, after swing frame (4) rotates by plunger torsion spring (15) return, it is characterized in that: the rotary valve Membranvergaser is provided with the enriching starting drive, this device comprises rocking arm (8), rotating shaft (5) and rocking arm torsional spring (7), the rotatable setting in boss (12) hole that rotating shaft (5) is provided with in fixed plate (6) one sides, rotating shaft (5) is fixedly connected with rocking arm (8), rotating shaft (5) rotate after by rocking arm torsional spring (7) return, the head of rotating shaft (5a) level is located at swing frame (4) below, the head of rotating shaft (5a) along the circumferential direction is provided with high point (18) and low spot (17), at motor, in ignition trigger stage, swing frame (4) during in lower position, after rotating shaft (5) is rotated, the high point (18) of shaft head promotes swing frame (4) and the plunger (16) and the spindle (3) that with swing frame, are connected move simultaneously.
2. rotary valve Membranvergaser as claimed in claim 1, it is characterized in that: the head of rotating shaft (5a) is designed to trapezoidal, and the low spot of shaft head (17) is on trapezoidal bottom, and high point (18) is on trapezoidal waist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103463547A CN103423033A (en) | 2013-08-09 | 2013-08-09 | Rotary valve type membrane carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103463547A CN103423033A (en) | 2013-08-09 | 2013-08-09 | Rotary valve type membrane carburetor |
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| CN103423033A true CN103423033A (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103463547A Pending CN103423033A (en) | 2013-08-09 | 2013-08-09 | Rotary valve type membrane carburetor |
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| CN (1) | CN103423033A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571405A (en) * | 2017-03-13 | 2018-09-25 | 王廷高 | A kind of two-stroke air conduction engine aspirating system |
| CN111336036A (en) * | 2018-12-19 | 2020-06-26 | 福建华龙化油器有限公司 | Enrichment starting mechanism of rotary valve type carburetor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030111743A1 (en) * | 2001-12-07 | 2003-06-19 | Shinichi Ohgane | Starting assembly for a carburetor |
| CN1873208A (en) * | 2005-06-03 | 2006-12-06 | 沃尔布罗发动机使用有限责任公司 | Start assist device for a rotary carburetor |
| CN201513253U (en) * | 2009-08-11 | 2010-06-23 | 浙江瑞星化油器制造有限公司 | Adjustment prevention rotary valve type carburetor |
| CN103047053A (en) * | 2013-01-05 | 2013-04-17 | 浙江瑞星化油器制造有限公司 | Plunger lifting mechanism of rotary valve type diaphragm carburetor |
| CN203009084U (en) * | 2012-12-25 | 2013-06-19 | 浙江瑞星化油器制造有限公司 | Anti-adjustment carburetor with rotary valve |
| CN203383924U (en) * | 2013-08-09 | 2014-01-08 | 浙江银龙机车部件有限公司 | Rotary-valve-type membrane carburetor |
-
2013
- 2013-08-09 CN CN2013103463547A patent/CN103423033A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030111743A1 (en) * | 2001-12-07 | 2003-06-19 | Shinichi Ohgane | Starting assembly for a carburetor |
| CN1873208A (en) * | 2005-06-03 | 2006-12-06 | 沃尔布罗发动机使用有限责任公司 | Start assist device for a rotary carburetor |
| CN201513253U (en) * | 2009-08-11 | 2010-06-23 | 浙江瑞星化油器制造有限公司 | Adjustment prevention rotary valve type carburetor |
| CN203009084U (en) * | 2012-12-25 | 2013-06-19 | 浙江瑞星化油器制造有限公司 | Anti-adjustment carburetor with rotary valve |
| CN103047053A (en) * | 2013-01-05 | 2013-04-17 | 浙江瑞星化油器制造有限公司 | Plunger lifting mechanism of rotary valve type diaphragm carburetor |
| CN203383924U (en) * | 2013-08-09 | 2014-01-08 | 浙江银龙机车部件有限公司 | Rotary-valve-type membrane carburetor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571405A (en) * | 2017-03-13 | 2018-09-25 | 王廷高 | A kind of two-stroke air conduction engine aspirating system |
| CN108571405B (en) * | 2017-03-13 | 2024-02-13 | 临沂市铸信机械有限公司 | Two-stroke air guide type engine air inlet system |
| CN111336036A (en) * | 2018-12-19 | 2020-06-26 | 福建华龙化油器有限公司 | Enrichment starting mechanism of rotary valve type carburetor |
| CN111336036B (en) * | 2018-12-19 | 2024-08-27 | 福建华龙化油器有限公司 | Enrichment starting mechanism of rotary valve type carburetor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |