CN2544110Y - LPG supply device for LPG auxiliary vehicle - Google Patents
LPG supply device for LPG auxiliary vehicle Download PDFInfo
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- CN2544110Y CN2544110Y CN 02218159 CN02218159U CN2544110Y CN 2544110 Y CN2544110 Y CN 2544110Y CN 02218159 CN02218159 CN 02218159 CN 02218159 U CN02218159 U CN 02218159U CN 2544110 Y CN2544110 Y CN 2544110Y
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- valve body
- enriching
- valve
- spring
- diaphragm unit
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Abstract
The utility model relates to an air feeder device for a liquefied petroleum gas (LPG) moped, pertaining to the moped field. The utility model consists of a first level pressure reducing valve, a second level pressure reducing valve and a control valve that are connected with each other by pipes; the first level pressure reducing valve is connected with the second level pressure reducing valve by screws in series. The utility model has the advantages of perfect functions, compact structure, complete combustion for the LPG is completely gasified before entering into an engine, small charcoal accumulation in engine cylinder, seldom having engine-failure and longer service life of the engine.
Description
Technical field: the utility model relates to a kind of air feeder, particularly a kind of LG boosting cycle air feeder belongs to the motor-helping car field.
Background technique: present motor-helping car is a fuel with gasoline mainly, but can produce various harmful gases in the gasoline combustion process, pollutes people's living environment, the physical and mental health that directly endangers people as " chimney flows ".For power performance and the Economy that guarantees cyclemotor, and exhaust index, except the structural characteristics of motor own, the quality that enters the flammable mixed gas of motor is very important, in order to guarantee this quality, if the cylinder for liquefied gas liquid gas that comes out is directly sent into control valve, then can destroy the mixing of control valve, make the motor cisco unity malfunction, hence one can see that, and the cylinder for liquefied gas high pressure liquid gasification that comes out just can be sent into control valve through secondary decompression and gasification.Therefore, liquid gas is suitably handled, made it enter control valve safely, this is the key of technological improvement, does not find the bibliographical information with the utility model theme unanimity by retrieval as yet.
Summary of the invention: the utility model is at the deficiencies in the prior art, prior art has been made further improvement, a kind of LG boosting cycle air feeder is provided, with the cylinder for liquefied gas air inflow that the high pressure liquid gasification enters a kind of accurately regulator solution gasification and air through the gas of secondary decompression voltage stabilizing and gasification of coming out, be matched to optimum mixture ratio, make and start function to reach optimum combustion regime, satisfy the requirement of travelling, guarantee that exhaust, tail gas reach environmental requirement.The utility model is combined by two-stage decompression valve and control valve, between connect with pipe, first order reduction valve and second level reduction valve are connected in series by screw, first order reduction valve is made up of cover plate (), valve body (), diaphragm unit (), be separated into two separate upper chamber () and lower chambers () with diaphragm unit () between cover plate () and the valve body (), the interior setting value spring of upper chamber () (one), upper chamber () does not communicate with atmosphere.
The setting pretightening force of definite value spring () and gaseous-pressure act on the producible pressure difference of diaphragm unit () (being interior nozzle of lower chambers () and the gap between the spool) and stablize the output of first order pressure, when the liquid gas of gas cylinder since the weather temperature raise, make the interior delivery pressure of gas cylinder along with rising enters valve body () gas-entered passageway, combustion gas chamber (one) pressure is raise, acting on active force and definite value spring () on the diaphragm unit () this moment carries out balance (being that nozzle in the lower chambers () and the gap between the spool change) and stablizes first order pressure and export, if instead falling after rise, the weather temperature still to carry out balance again, the pressure that enters second level reduction valve in a word remains the force value of setting, enters second level reduction valve.
Second level reduction valve is by cover plate (two), spring, diaphragm unit (two), baffle plate, valve body (two), be separated into two separate upper chamber (two) and lower chambers (two) with diaphragm unit (two) between cover plate (two) and the valve body (two), be provided with definite value spring (two) in the upper chamber (two), upper chamber (two) communicates with atmosphere, also is provided with regulating valve seat in baffle plate.
The gaseous-pressure of the setting pretightening force of definite value spring (two) and combustion gas chamber (two) acts on the producible pressure difference of diaphragm unit (two) (being interior nozzle of lower chambers (two) and the gap between the baffle plate) and stablizes second level pressure output, when motor-helping car when running at high speed, need to use in a large number combustion gas, the active force that acts on this moment on the diaphragm unit (two) reduces, again and definite value spring (two) carry out balance (being that nozzle in the lower chambers (two) and the gap between the baffle plate change) and stablize second level pressure and export, if instead motor-helping car travels at a slow speed or idling, still need carry out balance once more, second level pressure output all-the-time stable is supplied with the control valve use in the force value that can set in a word.
The control mechanism that travels of control valve is made up of air gate, acceleration metering needle, Returnning spring, sealing gasket, valve body, nozzle, and the tapering during acceleration on the metering needle is realized, realizes by cylindrical body on the acceleration metering needle when quickening slowly.
The automatic control mechanism of control valve is by automatic control valve body, nozzle, oil-impregnated bearing, diaphragm unit, spool, pallet, sealing gasket, cushion pad, Returnning spring, nozzle, oil-impregnated bearing, diaphragm unit are housed on the automatic control valve body, diaphragm unit is made up of diaphragm, spool, pallet, sealing gasket, the automatic control valve body is installed on the valve body, also has cushion pad and Returnning spring on valve body.When the second depressurized combination brake switch and proporting is exported to automatic control mechanism, because the action of reset spring sealing gasket blocks nozzle, cyclemotor is taken out negative power and is opened diaphragm unit, and making spool remove nozzle has output to enter same air mixing in the valve chamber, coupling combustion gas ratio.
(2), locking spring () enclose by idling air door metering needle () and (two), O shape circle () and O shape in the idling mechanism of control valve and (two) form, idling air door metering needle (one) is contained in the valve body, on idling air door metering needle (), be provided with O shape circle (one) and locking spring (), the idle pin (two) be contained in the valve body, is provided with O shape circle (two) and locking spring (two) on idling air door metering needle (two).Both utilize tapering on the metering needle and the gap between the cylindrical hole on the valve body to reach combustion gas and the air that idling uses respectively and enter in the valve chamber.Mix, the coupling air fuel ratio makes the motor-helping car idling mode.
The enriching mechanism of control valve is by enriching spool, Returnning spring, sealing gasket, nozzle, enriching metering needle, 0 shape circle and locking spring, the enriching spool is contained in the valve body, and put Returnning spring, on the enriching spool, be equipped with in sealing gasket and the valve body and be equipped with nozzle, make sealing gasket and be close to sealing by Returnning spring with nozzle, the enriching metering needle is contained in the valve body, is equipped with O shape circle and locking spring on the enriching metering needle.The enriching spool is connected with steel wire on the motor-helping car enriching spanner in the enriching mechanism, when needing enriching, steel wire pulling enriching spool, making sealing gasket leave nozzle has combustion gas to enter in the valve chamber, combustion gas is increased, the faster rotational speed of idling, if instead steel wire is replied and to be made sealing gasket on the enriching spool be close to nozzle by spring not have combustion gas and enter, at this moment idling is got back to original rotating speed.In order to guarantee the rotating speed of enriching, tapering in the needs adjusting enriching controlling mechanism on the enriching metering needle and the gap between the cylindrical hole on the valve body reach the combustion gas that enriching is used.
Enter by the high pressure liquid gasification of cylinder for liquefied gas output that suction port enters valve body (two) lower chambers in the second depressurized combination brake switch and proporting, enter valve body () upper chamber again, increase along with the liquid gas that enters, act on diaphragm unit () top and carry out balance with the definite value spring, pressure reduction each other reduces gradually, when pressure reduction is zero, promptly reach state of equilibrium, be once decompression and stablize.Through once decompression is stable, liquid gas enters valve body (twos') gas-entered passageway, charge into valve body (twos') upper chamber, the liquid gas increase acts on diaphragm unit (two) top and definite value spring (two) carries out balance along with entering, baffle plate is moved down, when pressure reduction is zero, promptly reach state of equilibrium, be the secondary decompression and stablize.Stablize combustion gas through the secondary decompression and export to control valve.
Motor-helping car is the air feeder working condition under each state:
(1) automatic control state
Engine start is connected with engine intake by main passage in the main valve body, produces intake negative-pressure, makes the automatic control mechanism action, has combustion gas to enter, and feeds the combustion gas of travelling, idling combustion gas respectively, quickens combustion gas.
(2) idling mode
Because engine start produces intake negative-pressure, make the automatic control mechanism action have combustion gas to enter slow running adjustment, there is the idling air to enter the idling air door regulating mechanism, both mix micro-empty combustion gas body and enter the main valve body main passage after regulating, last inflow engine burning makes motor be stabilized in idling mode.
(3) travelling state
Because motor is in idling mode, automatic control mechanism is in proper functioning, the combustion gas of travelling this moment enters, and motor-helping car oiling handle is affected by steel wire, and valve drives and quickens metering needle in the control mechanism that travels, combustion gas this moment and air enter the main passage of main valve body to be mixed, enter the engine combustion work done at last,, arbitrarily rotate and refuel handle on the motor-helping car according to the requirement of travelling, change the aperture of air gate and combustion gas door, just can increase, reduce to advance air quantity and advance gas quantity and reach the travelling speed speed.
(4) enriching state
For motor-helping car is started easily, set up enriching mechanism during cold weather, purpose is to allow combustion gas enrichment, increase idling, makes the motor-helping car action convenient.The enriching spanner is affected by steel wire on the motor-helping car, the enriching spool of enriching mechanism, combustion gas inlet when the enriching controlling mechanism is mainly used in enriching, give the enriching control mechanism again, the enriching spanner is opened and is made the enriching spool on the motor-helping car, leave nozzle, the enriching combustion gas enters idling is raise after being conditioned, and motor-helping car is started easily.If do not need enriching or motor-helping car to start to be in idling mode, the enriching spanner can be recovered, this moment, the enriching spool leaned on spring reset, and the sealing gasket sealed-in nozzles by on the enriching spool makes idling get back to normal idling.
(5) motor-helping car do not have travel and the idling situation under, automatic control mechanism closes automatically, isolates blast tube, prevents gas leakage, guarantees safe and reliable.
The utility model Perfect in shape and function, compact structure, because liquid gas is gasified totally before entering motor, it is very abundant to burn, and the cylinder carbon distribution is few, and motor is difficult for breaking down, and has prolonged the motor working life of motor-helping car.
Description of drawings: Fig. 1 the utility model structural representation
Fig. 2 two-stage decompression valve arrangement schematic representation
Fig. 3 control valve structural representation
Fig. 4 band automatic control mechanism control valve cross-sectional schematic
Fig. 5 band idling mechanism controls valve cross-sectional schematic
Fig. 6 band enriching mechanism controls valve cross-sectional schematic
Embodiment: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the utility model is combined by first order reduction valve 1, second level reduction valve 2 and control valve 3, between connect with pipe 4, first order reduction valve 1 and second level reduction valve 2 are connected in series by screw.
First order reduction valve 1 is made up of cover plate 5, valve body 6, diaphragm unit 7, is separated into two separate upper chamber 8 and lower chambers 9 with diaphragm unit 7 between cover plate 5 and the valve body 6, setting value spring 10 in the upper chamber 8, and upper chamber 8 is isolated with atmosphere.
Second level reduction valve 2 is made up of cover plate 11, spring 12, diaphragm unit 13, baffle plate 14, valve body 15, be separated into two separate upper chamber 16 and lower chambers 17 with diaphragm unit 13 between cover plate 11 and the valve body 15, be provided with definite value spring 12 in the upper chamber 16, upper chamber 16 communicates with atmosphere, also is provided with regulating valve seat in baffle plate 14.
Metering needle 19 is provided with adjustable tapering 20 and adjustable cylindrical body 21 during acceleration on the control mechanism 18 that travels of control valve 3.
The automatic control mechanism 22 of control valve 3 is by automatic control valve body 23, nozzle 24, oil-impregnated bearing 25, diaphragm unit 26, spool 27, pallet 28, sealing gasket 29, cushion pad 30, Returnning spring 31, nozzle 24, oil-impregnated bearing 25, diaphragm unit 26 are housed on the automatic control valve body 23, diaphragm unit 26 is made up of diaphragm 32, spool 27, pallet 28, sealing gasket 29, automatic control valve body 23 is installed on the valve body, also has cushion pad 30 and Returnning spring 31 on valve body.
The idling mechanism 33 of control valve 3 is made up of idling air door metering needle 34 and 35, O shape circle 36 and O shape circle 37, locking spring 38 and 39, idling air door metering needle 34 is contained in the valve body, on idling air door metering needle 34, be provided with O shape circle 36 and locking spring 38, idle pin 35 is contained in the valve body, is provided with O shape circle 37 and locking spring 39 on idling air door metering needle 35.
The enriching mechanism 40 of control valve 3 is by enriching spool 41, Returnning spring 42, sealing gasket 43, nozzle 44, enriching metering needle 45, O shape circle 46 and locking spring 47, enriching spool 41 is contained in the valve body, and Returnning spring 42 is set, enriching spool 41 is connected with steel wire 48 on the motor-helping car enriching spanner in the enriching mechanism 40, on enriching spool 41, be equipped with and be equipped with nozzle 44 in sealing gasket 43 and the valve body, enriching metering needle 45 is contained in the valve body, is equipped with O shape circle 46 and locking spring 47 on enriching metering needle 45.
Claims (7)
1, a kind of LG boosting cycle air feeder, it is characterized in that mainly comprising: first order reduction valve (1), second level reduction valve (2) and control valve (3), connect with pipe (4) between first order reduction valve (1), second level reduction valve (2) and the control valve (3), first order reduction valve (1) and second level reduction valve (2) are connected in series by screw.
2, this LG boosting cycle air feeder according to claim 1, it is characterized in that first order reduction valve (1) is made up of cover plate (5), valve body (6), diaphragm unit (7), be separated into two separate upper chamber (8) and lower chambers (9) with diaphragm unit (7) between cover plate (5) and the valve body (6), the interior setting value spring of upper chamber (8) (10), upper chamber (8) is isolated with atmosphere.
3, this LG boosting cycle air feeder according to claim 1, it is characterized in that second level reduction valve (2) is made up of cover plate (11), spring (12), diaphragm unit (13), baffle plate (14), valve body (15), be separated into two separate upper chamber (16) and lower chambers (17) with diaphragm unit (13) between cover plate (11) and the valve body (15), be provided with definite value spring (12) in the upper chamber (16), upper chamber (16) communicates with atmosphere, also is provided with the regulating valve seat in the diaphragm unit (13) in baffle plate (14).
4, this LG boosting cycle air feeder according to claim 1, metering needle (19) is provided with adjustable tapering (20) and adjustable cylindrical body (21) when it is characterized in that the acceleration on the control mechanism that travels (18) of control valve (3).
5, this LG boosting cycle air feeder according to claim 1, the automatic control mechanism (22) that it is characterized in that control valve (3) is by automatic control valve body (23), nozzle (24), oil-impregnated bearing (25), diaphragm unit (26), spool (27), pallet (28), sealing gasket (29), cushion pad (30), Returnning spring (31), nozzle (24) is housed on the automatic control valve body (23), oil-impregnated bearing (25), diaphragm unit (26), diaphragm unit (26) is by diaphragm (32), spool (27), pallet (28), sealing gasket (29) is formed, automatic control valve body (23) is installed on the valve body, also has cushion pad (30) and Returnning spring (31) on valve body.
6, this LG boosting cycle air feeder according to claim 1, (37), locking spring (38) enclose by idling air door metering needle (34) and (35), O shape circle (36) and O shape in the idling mechanism (33) that it is characterized in that control valve (3) and (39) are formed, idling air door metering needle (34) is contained in the valve body, on idling air door metering needle (34), be provided with O shape circle (36) and locking spring (38), idle pin (35) is contained in the valve body, is provided with O shape circle (37) and locking spring (39) on idling air door metering needle (35).
7, this LG boosting cycle air feeder according to claim 1, the enriching mechanism (40) that it is characterized in that control valve (3) is by enriching spool (41), Returnning spring (42), sealing gasket (43), nozzle (44), enriching metering needle (45), O shape circle (46) and locking spring (47), enriching spool (41) is contained in the valve body, and Returnning spring (42) is set, enriching spool (41) is connected with steel wire (48) on the motor-helping car enriching spanner in the enriching mechanism (40), on enriching spool (41), be equipped with and be equipped with nozzle (44) in sealing gasket (43) and the valve body, enriching metering needle (45) is contained in the valve body, is equipped with O shape circle (46) and locking spring (47) on enriching metering needle (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218159 CN2544110Y (en) | 2002-06-13 | 2002-06-13 | LPG supply device for LPG auxiliary vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218159 CN2544110Y (en) | 2002-06-13 | 2002-06-13 | LPG supply device for LPG auxiliary vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544110Y true CN2544110Y (en) | 2003-04-09 |
Family
ID=33696854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218159 Expired - Fee Related CN2544110Y (en) | 2002-06-13 | 2002-06-13 | LPG supply device for LPG auxiliary vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2544110Y (en) |
-
2002
- 2002-06-13 CN CN 02218159 patent/CN2544110Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |