CN2224291Y - Liquified-gas pressure regulator for automobile engine - Google Patents
Liquified-gas pressure regulator for automobile engine Download PDFInfo
- Publication number
- CN2224291Y CN2224291Y CN 95210559 CN95210559U CN2224291Y CN 2224291 Y CN2224291 Y CN 2224291Y CN 95210559 CN95210559 CN 95210559 CN 95210559 U CN95210559 U CN 95210559U CN 2224291 Y CN2224291 Y CN 2224291Y
- Authority
- CN
- China
- Prior art keywords
- chamber
- surge
- diaphragm
- pressure
- vernier device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model relates to a pressure regulator of liquefied-gas for an automobile engine. A first stage pressure regulation chamber, a second stage pressure regulation chamber and a vernier device are communicated by air admission and exhaust passages. The first stage pressure regulation chamber is provided with an overpressure automatic protective device, the quantity of an air input can be automatically regulated by the second stage pressure regulation chamber and the vernier device according to the variation of the fuel gas quantity required by the engine whose starting is easy, and the sensitivity of rotating speed change is enhanced. Both gasoline and liquefied gas can be used as fuel by the automobile by using the utility model which is convenient in operation and safe in use. The economical efficiency of a transport vehicle is evidently improved, and the utility model is suited to be used for the engines of different automotive types.
Description
The utility model relates to a kind of pressure regulator that can do the motor car engine use of fuel with liquefied petroleum gas (LPG).
At present, the automobile improvement of progressively promoting using single gasoline as fuel becomes both can be fuel with gasoline, can be the dual-fuel automobile of fuel with liquefied petroleum gas (LPG) again.The key device that gasoline car is transformed into dual-fuel automobile is an automobile liquid gas pressure reducing regulator, and existing automobile is relatively poor with the pressure controlled sensitivity of liquid gas pressure reducing regulator, and the safety reliability degree is not high.
The purpose of this utility model is to provide a kind of motor car engine gas pressure controlling device, can not only improve pressure controlled sensitivity, and has the superpressure function of protection automatically.
The utility model be achieved in that motor car engine with the gas pressure controlling device by gas-entered passageway and exhaust outlet with the one-level surge-chamber, secondary surge-chamber and vernier device are communicated with, on the housing of one-level surge-chamber, be provided with the preheating chamber of water intake and water outlet, in the one-level surge-chamber, switch lever is housed, switch lever one end is equipped with the air inlet valve gap that cooperates with intake valve port, the other end and spring controlled diaphragm are bound up, the combination switch lever is housed in the secondary surge-chamber, combination switch lever one end is equipped with the air inlet valve gap that cooperates with intake valve port, the buffering stop block of installing on the end face of its termination and the secondary surge-chamber housing matches, the end face of the combination switch lever the other end and diaphragm and the contact on the normal pressure chamber are bound up, and match with the push rod of the solenoid valve of on the secondary surge-chamber, installing, that the bottom surface of combination switch lever the other end termination is bound up with the diaphragm of vacuum chamber and match by spring controlled contact, exhaust ports at the secondary surge-chamber is installed with the pressure vernier device, and the control valve block is housed in the outlet pipe of pressure vernier device.
When car engine start, open solenoid valve, the push rod of solenoid valve stretches out the contact that promotes in the secondary surge-chamber composite lever that the diaphragm with the normal pressure chamber is consolidated, one end of composite lever is pressed down, lift on the other end, the air inlet valve gap is separated with intake valve port, the suction valve of one-level surge-chamber often leaves, liquid gas enters the secondary surge-chamber from the suction port valve port, and enters by vernier device in the vaporizer of motor car engine, makes the engine start running.When motor car engine is operated in motoring condition; close the valve solenoid valve; the requirement of combustion gas this moment increases; air pressure in the secondary surge-chamber is less than the indoor barometric pressure of normal pressure; diaphragm promotes the lever that is bound up with it under the pressure of normal pressure; make the air inlet valve gap of secondary surge-chamber continue to open; the requirement of Carbureter for car engine combustion gas increases; the degree of vacuum of vaporizer also increases; the air pressure of the vacuum chamber that is connected with vaporizer by pipeline is less than the air pressure in the secondary surge-chamber; air pressure in the secondary surge-chamber is pressed the diaphragm of vacuum chamber; diaphragm drives contact and presses down; increased the aperture of secondary surge-chamber air inlet valve gap; need the variation of gas quantity along with motor; vernier device can be regulated the aperture of reset valve automatically; the Economy of engine gas is improved; when the pressure overrate of the liquid gas that enters the one-level surge-chamber; air pressure compressing diaphragm in the one-level surge-chamber drives switch lever and moves together; valve gap on the switch lever the other end and intake valve port closure; make the one-level surge-chamber stop air inlet, played the overvoltage protection effect.
The regulator of this model utility is according to the variation of motor needs gas quantity; can regulate the size of air inflow automatically; change the sensitivity of rotating speed when having improved engine running; what be provided with in the one-level surge-chamber is overvoltage protective device by diaphragm and spring controlled switch lever, the Security that has improved engine running effectively.
Fig. 1 is the whole-cutaway view of motor car engine with the gas pressure controlling device, and Fig. 2 is the spool plan view of vernier device, and Fig. 3 is the spool plan view of vernier device, and Fig. 4 is vernier device control valve block plan view, and Fig. 5 is vernier device control valve block side view.
Below in conjunction with accompanying drawing the utility model is further described.
The utility model by gas-entered passageway and exhaust outlet with one-level surge-chamber A, secondary surge-chamber B and vernier device (24) are communicated with, on the housing of one-level surge-chamber A, be provided with the F of annular preheating chamber of water intake (2) and water outlet (8), suction port (9) is communicated with suction valve (7), switch lever (4) is housed in one-level surge-chamber A, switch lever (4) one ends are equipped with the air inlet valve gap (6) that cooperates with intake valve port (7), the diaphragm (5) of the other end and spring (3) control is bound up, combination switch lever (16) is housed in secondary surge-chamber B, combination switch lever (16) one ends are equipped with the valve gap (15) that cooperates with intake valve port (11), the buffering stop block of installing on the end face of its termination and the secondary surge-chamber B housing (12) matches, buffering stop block (12) is in the hollow cylinder chamber of regulating bolt (14) Regulation spring (13) to be housed, at spring (13) head plug is housed, control the size of buffer limit by regulating the interior degree of depth of bolt (14) precession secondary surge-chamber B housing, the end face of composite lever (16) the other end and the diaphragm (17) on the C of normal pressure chamber and contact (18) are bound up, and match with the push rod of the solenoid valve of on secondary surge-chamber B, installing (19), contact (21) that the bottom surface of this end termination of composite lever (16) is bound up with the diaphragm (23) of vacuum chamber D and that controlled by spring (22) matches, on underpressure chamber cover plate (20), have the through hole that communicates with atmosphere, underpressure chamber cover plate (20) constitutes normal pressure chamber C with diaphragm (17), become vacuum chamber D with cavity groups by diaphragm (23), vacuum chamber D is communicated with vaporizer by pipeline (1).Place, air outlet at secondary surge-chamber B is installed with pressure vernier device (24), the loam cake (29) of belt lacing (28) is stamped on the top of pressure vernier device (24), joint (28) is communicated with vaporizer, loam cake (29) is formed vacuum chamber E with diaphragm (32), with valve rod (27) top that diaphragm (32) is consolidated spring (31) is housed, voltage regulation screw (30) is housed in the screw of its head, the spool (25) that matches with pressure vernier device (24) inner walls is equipped with in its lower end, spool (25) is vertical with discoid base for the cylinder of band screw, at radial uniform shim more than three on the circumference of cylinder, the external diameter of shim matches with pressure vernier device (24) inner walls diameter, need the variation of gas quantity with motor, the size of vacuum chamber E degree of vacuum changes thereupon, force diaphragm (32) to drive valve rod (27) spool (25) is moved up and down, to control the inlet of required liquid gas.The sidewall of pressure vernier device (24) housing is provided with outlet pipe, rotating sheet control valve block (26) is housed in outlet pipe, the head that its may command is rotated is contained on the shell of outlet pipe, rotate the aperture of control valve block (26), the control liquid gas enters the flow of vaporizer, to adapt to the requirement of different automobile types, below secondary surge-chamber B housing, be provided with pollutant exhaust hole (10) to liquid gas
Claims (4)
1, a kind of motor car engine gas pressure controlling device, by gas-entered passageway and exhaust outlet with one-level surge-chamber A, secondary surge-chamber B and vernier device (24) are communicated with, on the housing of one-level surge-chamber A, be provided with the F of annular preheating chamber of water intake (2) and water outlet (8), it is characterized in that in one-level surge-chamber A, being equipped with switch lever (4), switch lever (4) one ends are equipped with the air inlet valve gap (6) that cooperates with intake valve port (7), the diaphragm (5) of the other end and spring (3) control is bound up, combination switch lever (16) is housed in secondary surge-chamber B, combination switch lever (16) one ends are equipped with the valve gap (15) that cooperates with intake valve port (11), the buffering stop block of installing on the end face of its termination and the secondary surge-chamber B housing (12) matches, the end face of composite lever (16) the other end and the diaphragm (17) on the C of normal pressure chamber and contact (18) are bound up, and match with the push rod of the solenoid valve of on secondary surge-chamber B, installing (19), contact (21) that the bottom surface of this end termination of composite lever (16) is bound up with the diaphragm (23) of vacuum chamber D and that controlled by spring (22) matches, place, air outlet at secondary surge-chamber B is installed with pressure vernier device (24), and control valve block (26) is housed in the outlet pipe of pressure vernier device (24).
2, motor car engine according to claim 1 gas pressure controlling device, it is characterized in that the top of pressure vernier device (24) is stamped the loam cake (29) of belt lacing (28), joint (28) is communicated with vaporizer, loam cake (29) is formed vacuum chamber E with diaphragm (32), with valve rod (27) top that diaphragm (32) is consolidated spring (31) is housed, voltage regulation screw (30) is housed in the screw of its head, and the spool (25) that matches with pressure vernier device (24) inner walls is equipped with in its lower end.
3, motor car engine according to claim 2 gas pressure controlling device, it is characterized in that spool (25) is vertical with discoid base for the cylinder of band screw, at radial uniform shim more than three on the circumference of cylinder, the external diameter of shim matches with pressure vernier device (24) inner walls diameter.
4, motor car engine according to claim 1 gas pressure controlling device is characterized in that controlling valve block (26) for being contained in rotating sheet valve block in the outlet pipe, and the head that its may command is rotated is contained on the shell of outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210559 CN2224291Y (en) | 1995-05-06 | 1995-05-06 | Liquified-gas pressure regulator for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210559 CN2224291Y (en) | 1995-05-06 | 1995-05-06 | Liquified-gas pressure regulator for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224291Y true CN2224291Y (en) | 1996-04-10 |
Family
ID=33861246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210559 Expired - Fee Related CN2224291Y (en) | 1995-05-06 | 1995-05-06 | Liquified-gas pressure regulator for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224291Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696112A (en) * | 2015-03-18 | 2015-06-10 | 盐城诺维特机电科技有限公司 | Pressure reducing valve based on liquefied petroleum gas and natural gas dual-fuel engine |
| WO2016024175A1 (en) * | 2014-08-12 | 2016-02-18 | Angadji Michael | Gas pressure regulator for two wheeler |
-
1995
- 1995-05-06 CN CN 95210559 patent/CN2224291Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016024175A1 (en) * | 2014-08-12 | 2016-02-18 | Angadji Michael | Gas pressure regulator for two wheeler |
| CN104696112A (en) * | 2015-03-18 | 2015-06-10 | 盐城诺维特机电科技有限公司 | Pressure reducing valve based on liquefied petroleum gas and natural gas dual-fuel engine |
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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 |