CN2349363Y - Gas pressure-reducing regulator - Google Patents
Gas pressure-reducing regulator Download PDFInfo
- Publication number
- CN2349363Y CN2349363Y CN 98229079 CN98229079U CN2349363Y CN 2349363 Y CN2349363 Y CN 2349363Y CN 98229079 CN98229079 CN 98229079 CN 98229079 U CN98229079 U CN 98229079U CN 2349363 Y CN2349363 Y CN 2349363Y
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- CN
- China
- Prior art keywords
- chamber
- spring
- spool
- valve core
- low pressure
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- Expired - Fee Related
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Abstract
The utility model discloses a gas pressure reducer, which is improved on the basis of an existing gas regulator for an automobile engine. The utility model is characterized in that a tapered port and a tapered valve corresponding to the tapered port are arranged in a passage between a first stage pressure-reducing chamber and a second stage pressure-reducing chamber; the upper end of a valve core is contacted with an elastic membrance and the end part of a spring; the lower part of the valve core is provided with a top spring; the valve core is provided with an O-shaped rubber ring; a low pressure valve core cavity is arranged between a front air passage and a back air passage between the second stage pressure-reducing chamber and a third stage pressure-reducing chamber. An electromagnet is arranged at the outer part of the low pressure valve core cavity, and a low pressure valve core and a valve door are arranged at the inner part of the low pressure valve core cavity. The inner part of the valve door is provided with a small hole, and the valve core is provided with an outer O-shaped sealing ring. The outer part of the valve door is provided with an O-shaped outer sealing ring. The front air passage is communicated with the low pressure valve core cavity. The utility model has simple structure, and has good stability for supplying gas.
Description
The utility model relates to a kind of internal-combustion engine fuel gas supply device, particularly a kind of motor car engine combustion gas pressure reducing regulator.
Along with people's environmental consciousness strengthens, require to adopt the cry of pollution-free fuel more and more higher, gas production improves year by year in addition, compressed natural gas is more and more popular to people as motor car engine fuel, but up to the present, still do not have very good combustion gas pressure reducing regulator, existing regulator volume is big, unreasonable structure, the air feed stability is poor.Decompressor is Chinese patent 97210103.9 motor car engine gas regulators relatively preferably at present, it regulates the stepped voltage regulation structure that the underpressure chamber is interconnected and constitutes by three, each conditioning chamber that reduces pressure is separated into underpressure chamber and conditioning chamber by flexible sheet, one, corresponding locular wall of secondary conditioning chamber and flexible sheet and spring one end are affixed, the spring the other end and flexible sheet middle part are affixed, one-level underpressure chamber suction port is provided with spool, each suction port position, underpressure chamber is provided with the adjusting double-screw bolt, the double-screw bolt top is provided with rubber cushion, regulating double-screw bolt links to each other with pole one end, the pole the other end and connecting pin one end are hinged, the connecting pin the other end and flexible sheet are affixed, pole middle part and the hinged formation lever construction of locular wall, three grades of underpressure chamber locular walls are provided with adjusting knob, regulate knob and touch mutually with the pole end by stage clip.The problem that said structure exists is the lever construction complex structure not only at suction port position, second depressurized chamber, and only be suitable for the bigger underpressure chamber of volume, the underpressure chamber is hour this structural adjustment poor performance, the regulator volume is difficult to dwindle, while suction port position, three grades of underpressure chamber, only depend on lever to regulate, also have poor sensitivity, operation stability was poor when especially its pressure was less relatively.
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of designs simplification, the more stable combustion gas pressure reducing regulator of air feed are provided.
The purpose of this utility model realizes by following technical proposals: the utility model is the improvement to existing automobile fuel gas regulator, be provided with a taper valve port in one-level underpressure chamber and passage place, second depressurized chamber, mitre velve oral area position is provided with the taper valve core that adapts with it, the taper valve core upper end is affixed with flexible sheet middle part and spring one end, the spool bottom is provided with a top spring, the spring the other end touches mutually with the chamber, the valve port position of spool is provided with O shape cushion rubber, before second depressurized chamber and three grades of underpressure chamber, be provided with a low pressure spool chamber between back air flue, spool chamber is provided with electromagnet outward, be provided with low pressure spool and valve in the chamber, touch mutually with top spring one end low pressure spool upper end, the lower end is provided with an O-ring seals, the top spring the other end touches mutually with the plane entity, the valve center is provided with breeder tube, and valve outer end tapered end is provided with O shape exterior seal ring, and preceding air flue is provided with a fork road and communicates with the low pressure spool chamber.
Regulate the surge-chamber that the underpressure chamber is provided with two correspondences for three grades.
Secondary is regulated the locular wall position and is provided with an adjusting double-screw bolt, and touches mutually with spring one end.
From above-mentioned situation as can be known the purpose of this utility model can realize:
Gas is opened the one-level spool by intake duct and is entered the one-level underpressure chamber, because pressure constantly raises, promoting diaphragm overcomes the conditioning chamber spring and drives lever and withstand the one-level spool intake duct is closed, in case one-level underpressure chamber pressure descends, spring promotes lever and moves down, the one-level spool is opened by gas again, gas in the one-level underpressure chamber overcomes secondary conditioning chamber spring band mantle shape valve core with pressure increase promotion diaphragm after entering the secondary air chamber, enclose pathway closure by O shape, in case the secondary air chamber pressure descends, the spring band movable valve plug moves down, the gas of one-level air chamber can enter in the second depressurized chamber again, when the effect of the magnetic force after the low pressure valve core body is by the electromagnet energising moves up, O shape exterior seal ring also with on move, the gas of secondary air chamber is the aperture by valve just, enter the back air flue because the aperture ventilation back pressure reduction of valve reduces, a large amount of gases of secondary air chamber are just upwards pushed valve open, main airway is opened entered three grades of air chambers, this combustion gas pressure reducing regulator is when work, because the vacuum that gas engine produces arrives three grades of underpressure chamber by passage, on the other hand, the magnetic force that produces after the electromagnet energising is opened valve, air pressure in the second depressurized chamber also flows to the two the clothes spring force of making every effort to overcome of three grades of underpressure chamber three grades of valves is opened, and gas enters gas engine for its burning by passage.
Accompanying drawing is a configuration diagram of the present utility model;
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings below:
As shown in Figure 1: three grades of decompressors that design is made up of three adjusting underpressure chamber that are interconnected, each is regulated the decompressor chamber and is separated into underpressure chamber and conditioning chamber by diaphragm, 28 suction port positions, one-level underpressure chamber are provided with one-level spool 2, the valve core front portion is provided with seal rubber pad 1, the underpressure chamber is separated into conditioning chamber and underpressure chamber by first diaphragm 6, be provided with spring 5 in the conditioning chamber, the one end links to each other with locular wall, the other end touches mutually with the backing plate and the pole at diaphragm middle part, pole end and the hinge joint of lever 4 one ends, the lever the other end and locular wall anchor point 3 are hinged.I and II underpressure chamber interchannel is provided with a taper valve port 13, mitre velve oral area position is provided with a taper valve core that adapts with it 11, touch mutually with secondary flexible sheet 7 middle parts and spring 10 1 ends the taper valve core upper end, the spool bottom is provided with a top spring 8, spool touches the position mutually with the taper valve port and is provided with O shape cushion rubber 12, spring 10 the other ends touch mutually with regulating locular wall, adjust operation for increasing regulating effect and being convenient to, and originally are implemented in the locular wall place and are provided with one and regulate double-screw bolt 9 and touch mutually with spring 10 1 ends.Before second depressurized chamber 26 and three grades of underpressure chamber 27, be provided with a low pressure spool chamber between back air flue, spool chamber is provided with electromagnet 14 outward, be provided with low pressure spool 16 in the chamber, spool and plane inter-entity are provided with spool top spring 15, the lower end is provided with an outer O-ring seals 17, the spool bottom is provided with valve 18, the valve center is provided with breeder tube, valve outside tapered end is provided with O shape exterior seal ring 19, before air flue be provided with a fork road and communicate with the low pressure spool chamber, three grades of underpressure chamber can be one, also can be designed to relative two, present embodiment is selected 2 for use, be provided with three grades of valves in three grades of underpressure chamber, valve is made of sealing gasket 22 and lever 21, and sealing gasket is corresponding with suction port, lever 21 1 ends and a spring 20 offset, the lever middle part is hinged with locular wall, and the bar bar the other end links to each other with the diaphragm 23 of underpressure chamber or a dunnage of 24 by double-screw bolt, and diaphragm 23 dunnages are touched mutually with top spring 25 1 ends, the top spring the other end and locular wall offset, and air outlet 29, three grades of underpressure chamber links to each other with motor.
Claims (3)
1, a kind of gas pressure reducers, regulate the underpressure chamber stepped voltage regulation structure that the constitutes conditioning chamber that respectively reduces pressure that is interconnected by three and be separated into underpressure chamber and conditioning chamber by flexible sheet, one, the secondary conditioning chamber touches mutually with corresponding locular wall of flexible sheet and spring one end, the spring the other end touches mutually with flexible sheet middle part backing plate, one-level underpressure chamber suction port is provided with spool (2), each suction port position, underpressure chamber is provided with adjusting member, it is characterized in that: one-level underpressure chamber (28) are provided with a taper valve port (13) with passage place, second depressurized chamber, mitre velve oral area position is provided with the taper valve core (11) that adapts with it, touch mutually with flexible sheet middle part and spring one end backing plate the taper valve core upper end, the spool bottom is provided with a top spring (8), spring (10) the other end touches mutually with locular wall, the valve port position of spool is provided with O shape cushion rubber (12), before second depressurized chamber (26) and three grades of underpressure chamber (27), be provided with a low pressure spool chamber between back air flue, spool chamber is provided with electromagnet (14) outward, be provided with low pressure spool (16) and valve (18) in the chamber, touch mutually with top spring one end low pressure spool upper end, the top spring the other end touches mutually with the plane entity, the valve center is provided with breeder tube, valve outer end tapered end is provided with O shape exterior seal ring, and preceding air flue is provided with a fork road and communicates with the low pressure spool chamber.
2, combustion gas pressure reducing regulator according to claim 1 is characterized in that: regulate the surge-chamber that the underpressure chamber is provided with two correspondences for three grades.
3, combustion gas pressure reducing regulator according to claim 1 is characterized in that: secondary is regulated the locular wall position and is provided with an adjusting double-screw bolt, and touches mutually with spring one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229079 CN2349363Y (en) | 1998-07-07 | 1998-07-07 | Gas pressure-reducing regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229079 CN2349363Y (en) | 1998-07-07 | 1998-07-07 | Gas pressure-reducing regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2349363Y true CN2349363Y (en) | 1999-11-17 |
Family
ID=33979035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229079 Expired - Fee Related CN2349363Y (en) | 1998-07-07 | 1998-07-07 | Gas pressure-reducing regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2349363Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297045A (en) * | 2011-09-16 | 2011-12-28 | 孙喜洲 | Automobile gas dispenser |
-
1998
- 1998-07-07 CN CN 98229079 patent/CN2349363Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297045A (en) * | 2011-09-16 | 2011-12-28 | 孙喜洲 | Automobile gas dispenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: NANCHONG MACHINERY FACTORY, SICHUAN PETROLEUM ADMINISTRATION TO: SICHUAN HUAYOU NATURAL GAS AUTOMOBILE DEVELOPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 610051, Chengdu Hua Jing Road No. 143 China oil court ho ho Patentee after: Huayou Natural Gas Automobile Development Co., Ltd., Sichuan Address before: Nanchong Sichuan petroleum machinery plant Patentee before: Nanchong Machinery Factory, Sichuan Petroleum Administration |
|
| 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 |