CN201297219Y - Pressure reducing regulator - Google Patents
Pressure reducing regulator Download PDFInfo
- Publication number
- CN201297219Y CN201297219Y CNU2008201805120U CN200820180512U CN201297219Y CN 201297219 Y CN201297219 Y CN 201297219Y CN U2008201805120 U CNU2008201805120 U CN U2008201805120U CN 200820180512 U CN200820180512 U CN 200820180512U CN 201297219 Y CN201297219 Y CN 201297219Y
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- CN
- China
- Prior art keywords
- pressure
- cavity
- damping
- pressure reducing
- reducing regulator
- Prior art date
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model relates to a pressure reducing regulator which comprises a lower cavity body of a vacuum cavity, a pressure reducing cavity is formed by the lower cavity body and membranes, a vacuum pipe joint extends out of the vacuum cavity, a damping core is arranged in the vacuum cavity, a damping cavity is formed by the damping core, an O-shaped ring and an upper cavity cover and is communicated with the vacuum cavity through small holes and exhaust holes, and a connecting rod subassembly is connected with the damping core. The utility model regulates high-pressure natural gas output by a gas storing bottle into low-pressure constant natural gas which can satisfy the working requirements of an engine through a single-membrane composite decompression-regulation integrative structure. The utility model has the advantages of small volume, simple structure, convenient and flexible installation and debugging, few pieces, easy maintenance and low cost. The output pressure of a reductor can be automatically regulated by using functions of the pressure feedback in a gas inlet pipe of the engine and the single-membrane composite decompression-regulation structure, the constant difference value of the output pressure of the pressure reducing regulator and the pressure in the gas inlet pipe of the engine is maintained, and a cylindrical damping cavity and the damping core structure in the vacuum cavity can effectively reduce noise generated when the pressure reducing regulator works.
Description
Technical field
The utility model relates to pressure reducing regulator, is specifically related to a kind of pressure reducing regulator that is used for gas combustion automobile engine gas supply system, belongs to International Classification of Patents F02M technical field.
Background technique
Pressure reducing regulator is the gas supply system vitals that is used for gasoline-rock gas variable fuel vehicle or the single fuel automobile of rock gas.Effect is to be regulated through the decompression of this device by the high pressure compressed rock gas of air cylinder output, and the constant relatively low pressure natural gas of engine operation needs is satisfied in output.
Gasoline-compressed natural gas variable fuel vehicle or gas as single fuel automobile are popularized within the specific limits.Along with the increasingly stringent of world's atmosphere environmental requirement, the development of gas combustion automobile air supply system technology develops into the modern technologies stage of multipoint sequential injection formula via mixer-carburetor type, mixer-single-point EFI closed loop.The pressure reducing regulator that the multimembrane chip architecture of negative pressure output is regulated in three grades of conventional decompressions can not satisfy advanced natural gas injection air supply system needs, and the pressure reducing regulator that the secondary multimembrane chip architecture level pressure that can satisfy natural gas injection air supply system needs is exported, because of its volume is big, its installation and debug space in arranging compact engine compartment can be very limited.
For example, satisfy automobile in the market and spray the most of second depressurized controlling mechanism that adopts of pressure reducing regulator of system in the past, the enforcement body that decompression at different levels, pressure regulation or voltage stabilizing are all regulated by decomposition pressures such as corresponding diaphragm, spring and pressure chambers with compressed natural gas.By air flue series connection one-level underpressure chamber and second depressurized chamber and auxiliary pressure-regulating device, the high-pressure natural gas of 20MPa under springs at different levels and diaphragm adjusting thereof, satisfies the rock gas of certain low-pressure of engine operation needs via each chamber at last from the output of second depressurized chamber.Though this class formation can guarantee to export the rock gas of stabilizing low voltage power, structure is complicated, volume is big, and installing space is very limited, inconvenient debugging, and cost height, maintenance difficult.On the other hand, existing pressure reducing regulator, the structure that does not have the feedback regulation of designed engines suction tude internal pressure, the delivery pressure of pressure reducing regulator can only be relative with atmospheric pressure constant, can not adjust delivery pressure automatically according to the variation (engine load variation) of engine air inlet tube internal pressure.The design that produces high vibration when more on the one hand, existing pressure reducing regulator decompression diaphragms at different levels and spring assembly are not avoided work.Along with the variation of engine operating condition, pressure reducing regulator combustion gas delivery pressure and flow constantly change fast, cause interior springs at different levels of pressure reducing regulator and diaphragm fast vibration to occur, and regular meeting goes out obviously existing whistler in the work.
Summary of the invention
The purpose of this utility model, be to overcome above-mentioned deficiency of the prior art, provide that a kind of volume simple in structure is little, Installation and Debugging are convenient, pressure output changes automatically with the engine air inlet tube internal pressure and regulates, can keep constant, and can reduce the pressure reducing regulator of operating noise with engine air inlet tube internal pressure difference.
The purpose of this utility model is achieved through the following technical solutions.
A kind of pressure reducing regulator, it comprises that upper cavity is vacuum chamber and lower chamber, and lower chamber constitutes relief chamber with the diaphragm that lies across in the cavity middle part, and upper chamber cover is arranged at the vacuum chamber top, the protruding vacuum tube joint that can be connected with engine intake manifold of vacuum chamber; Damping conductor is arranged in the vacuum chamber, and there is O type circle on the damping conductor both sides, and damping conductor and O type circle and upper chamber cover have been formed damping cavity jointly; Damping conductor adopts columniform damping conductor, and there is an aperture its top, and exhaust port is arranged on the damping conductor, and damping cavity is communicated with vacuum chamber by aperture and exhaust port; Connecting rod assembly and damping conductor link together; Rocking arm is arranged in the lower chamber, and rocking arm connects high-pressure plunger, and high-pressure plunger connects valve.The valve connecting pipeline, pipeline connection high pressure valve component, high pressure valve component top connects the high-pressure solenoid valve coil, and there is pipeline high pressure valve component below.There is the suction port of high pressure valve body the pipeline below, and there is filter core the suction port top, and there is pipeline the top of filter core.
Upper chamber cover is provided with pressure adjusting spring with the turnover position that is connected of damping cavity; The lower fulcrum of rocking arm is equipped with hinge.
The utility model advantage is: simple in structure, volume is little, maintenance, Installation and Debugging convenient; Can regulate the pressure reducing regulator delivery pressure automatically; Make a noise in the time of effectively avoiding pressure reducing regulator work.
The technical problem that the utility model solves: the traditional integrated form multimembrane sheet secondary of the compound decompression of single-iris-adjustings integral structure realization or the function of three grades of pressure reducing regulators are adopted in (1) design, solve existing integrated form multimembrane sheet secondary or three grades of pressure reducing regulator complex structures, problems such as volume is big, cost is high, maintenance difficult.(2) design utilizes the engine air inlet tube internal pressure feedback and the effect of the compound decompression-regulation structure of single-iris to regulate the pressure reducing regulator delivery pressure automatically, keeps the difference of pressure reducing regulator delivery pressure and engine air inlet tube internal pressure constant.(3) cylindrical damping cavity and the damping conductor structure in the design pressure reducing regulator vacuum chamber, the noise in the time of effectively reducing pressure reducing regulator work.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model pressure reducing regulator.
Among the figure: 1. high pressure joint, 2. pipeline, 3. attaching nut, 4. pipeline, 5. high-pressure solenoid valve coil, 6. pipeline, 7. valve, 8. rocking arm, 9. water channel, 10. Sealing, 11. the underpressure chamber, 12. apertures, 13. lower chambers, 14. diaphragms, 15. connecting rod assemblies, 16. upper chamber cover, 17.O type circle, 18. pressure adjusting springs, 19. damping cavity, 20. damping conductor, 21. vacuum chambers, 22. high-pressure plungers, 23. hinges, 24. filter core, 25. high pressure valve components, 26. vacuum tube joints, 28. exhaust ports.
Embodiment
Referring to accompanying drawing, pressure reducing regulator of the present utility model, comprise high pressure joint 1, pipeline 2, pipeline 4, high-pressure solenoid valve coil 5, pipeline 6, valve 7, rocking arm 8, underpressure chamber 11, aperture 12, lower chamber 13, diaphragm 14, connecting rod assembly 15, upper chamber cover 16, O type circle 17, pressure adjusting spring 18, damping cavity 19, damping conductor 20, vacuum chamber 21, high-pressure plunger 22, hinge 23, filter core 24, high pressure valve component 25, vacuum tube joint 26 and exhaust port 28.The underpressure chamber 11 that lower chamber 13, diaphragm 14 and connecting rod assembly 15 are formed; The vacuum chamber 21 that upper chamber cover 16, diaphragm 14 and connecting rod assembly 15 are formed; The heating water channel 9 that lower chamber 13, diaphragm 14, upper chamber cover 16 are formed; The damping cavity 19 that cylindrical damping conductor 20, upper chamber cover 16 and O type circle 17 are formed; Air flue attaching nut 3 provides air flue 6 to reach and connecting port, forms the high pressure valve component of being made up of pressure duct 2,4,6, filter core 24, high-pressure solenoid valve coil 5 etc. 25.
The working procedure of the utility model pressure reducing regulator is as follows: the high-pressure natural gas of air cylinder output enters high pressure valve component 25 by high pressure joint 1, because before high-pressure solenoid valve coil 5 is not switched on, high pressure valve has been closed the passage that pipeline 4 enters pipeline 6, and high-pressure natural gas can not enter the underpressure chamber 11 of pressure reducing regulator by pipeline 6.Diaphragm 14 drives connecting rod assembly 15 and moves downward under the effect of pressure adjusting spring 18, and rocking arm 8 is rotated counterclockwise around hinge 23, and high-pressure plunger 22 moves to left, and makes valve 7 be in opening state.During pressure reducing regulator work, the passage that pipeline 4 enters pipeline 6 has been opened in high-pressure solenoid valve coil 5 energising, high pressure valve, after high-pressure natural gas filters solid impurities from suction port 1 through filter core 24, enter pressure reducing regulator underpressure chamber 11 by pipeline 2, pipeline 4 and pipeline 6, underpressure chamber 11 pressure raise.Along with underpressure chamber 11 increased pressure, after the pressure of underpressure chamber 11 overcomes the elastic force of pressure adjusting spring 18, promote diaphragm 14 drive connecting rod assemblies 15 and move upward, rocking arm 8 turns clockwise around hinge 23, and high-pressure plunger 22 moves to right, and the aperture of valve 7 reduces or closes; After low pressure natural gas is exported supply engine from the steam outlet pipe that links to each other with the underpressure chamber, the pressure of underpressure chamber 11 reduces, under the effect of pressure adjusting spring 18, the aperture of valve 7 increases, so repeatedly, under the continuous adjustment of pressure adjusting spring 18 and diaphragm 14, pressure reducing regulator is exported the low pressure natural gas of required pressure to motor.
The utility model pressure reducing regulator has adopted cylindrical damping conductor 20, upper chamber cover 16 and O type circle 17 to form damping cavity 19 in vacuum chamber 21.There is an aperture 12 cylindrical damping conductor 20 tops, and damping cavity 19 communicates with vacuum chamber 21 by aperture 12 and exhaust port 28.Link assembly 15 links together with damping conductor 20, when link assembly 15 moves up and down, drives damping conductor 20 and moves up and down.When link assembly 15 moved upward, damping cavity 19 internal pressures raise, and the air in the damping cavity 19 flow in the vacuum chamber 21 by aperture 12 and exhaust port 28, otherwise the air in the vacuum chamber 21 flow in the vacuum chamber 21 by exhaust port 28 and aperture 12.Because aperture 12 diameters are less, and air flows is had damping function, make damping conductor 20 can very fastly not move, thereby reduced link assembly 15 because of the vibration that strenuous exercise produces, make a noise when avoiding pressure reducing regulator work.Sealing 10 in the connecting rod assembly 15 guarantees mutual airtight isolation between underpressure chamber 11 and vacuum chamber.
High-pressure natural gas enters underpressure chamber 11 from valve 7 and reduces to low-pressure gas and need absorb a large amount of heats, and pressure reducing regulator can produce the frosting phenomenon when serious.This novel practical pressure reducing regulator is an integrated heating water channel 9 on lower chamber 13, diaphragm 14, upper chamber cover 16, utilizes engine cycles water that pressure reducing regulator is heated.As accompanying drawing 1 and accompanying drawing 2, turnover water channel 27 and interior circulation heating water channel 9 communicate, and have so promptly guaranteed the heating to high-pressure natural gas inlet valve 7, simultaneously can be to the low-pressure gas heating of underpressure chamber 11, effectively avoided the pressure reducing regulator frosting, temperature that simultaneously can very fast raising pressure reducing regulator.
The utility model has solved following technical problem: the traditional integrated form multimembrane sheet secondary of the compound decompression of single-iris-adjustings integral structure realization or the function of three grades of pressure reducing regulators are adopted in (1) design, solve existing integrated form multimembrane sheet secondary or three grades of pressure reducing regulator complex structures, problems such as volume is big, cost is high, maintenance difficult.(2) design utilizes the engine air inlet tube internal pressure feedback and the effect of the compound decompression-regulation structure of single-iris to regulate the pressure reducing regulator delivery pressure automatically, keeps the difference of pressure reducing regulator delivery pressure and engine air inlet tube internal pressure constant.(3) cylindrical damping cavity and the damping conductor structure in the design pressure reducing regulator vacuum chamber, the noise in the time of effectively reducing pressure reducing regulator work.
Claims (5)
1. pressure reducing regulator, it is characterized in that: it comprises that upper cavity is vacuum chamber (21) and lower chamber (13), lower chamber (13) constitutes relief chamber (11) with the diaphragm (14) that lies across in the cavity middle part, upper chamber cover (16) is arranged at vacuum chamber (21) top, the protruding vacuum tube joint (26) that can be connected with engine intake manifold of vacuum chamber (21); Damping conductor (20) is arranged in the vacuum chamber (21), and there is 0 type circle (17) on damping conductor (20) both sides, and damping conductor (20) and 0 type circle (17) and upper chamber cover (16) have been formed damping cavity (19) jointly; Damping conductor (20) adopts columniform damping conductor, and there is an aperture (12) its top, and exhaust port (28) is arranged on the damping conductor (20), and damping cavity (19) is communicated with vacuum chamber (21) by aperture (12) and exhaust port (28); Connecting rod assembly (15) links together with damping conductor (20); Rocking arm (8) is arranged in the lower chamber (13), and rocking arm (8) connects high-pressure plunger (22), and high-pressure plunger (22) connects valve (7).
2. pressure reducing regulator according to claim 1, it is characterized in that: described valve (7) connecting pipeline (6), pipeline (6) is communicated with high pressure valve component (25), and high pressure valve component (25) top connects high-pressure solenoid valve coil (5), and there is pipeline (4) high pressure valve component (25) below.
3. pressure reducing regulator according to claim 2 is characterized in that: there is the suction port (1) of high pressure valve body the below of described pipeline (6), and there is filter core (24) top of suction port (1), and there is pipeline (4) top of filter core (24).
4. pressure reducing regulator according to claim 1 is characterized in that: upper chamber cover (16) is provided with pressure adjusting spring (18) with the turnover position that is connected of damping cavity (19).
5. pressure reducing regulator according to claim 1 is characterized in that: the lower fulcrum of rocking arm (8) is equipped with hinge (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201805120U CN201297219Y (en) | 2008-12-03 | 2008-12-03 | Pressure reducing regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201805120U CN201297219Y (en) | 2008-12-03 | 2008-12-03 | Pressure reducing regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297219Y true CN201297219Y (en) | 2009-08-26 |
Family
ID=41043199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201805120U Expired - Fee Related CN201297219Y (en) | 2008-12-03 | 2008-12-03 | Pressure reducing regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297219Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180088A (en) * | 2016-12-08 | 2018-06-19 | 大众汽车有限公司 | Metering units for the internal combustion engine run by fuel gas |
| CN108730562A (en) * | 2018-06-20 | 2018-11-02 | 杭州电子科技大学 | It is a kind of to draw damping vacuum diaphragm valve certainly |
-
2008
- 2008-12-03 CN CNU2008201805120U patent/CN201297219Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180088A (en) * | 2016-12-08 | 2018-06-19 | 大众汽车有限公司 | Metering units for the internal combustion engine run by fuel gas |
| CN108730562A (en) * | 2018-06-20 | 2018-11-02 | 杭州电子科技大学 | It is a kind of to draw damping vacuum diaphragm valve certainly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100070, No. 21, building 3, building 128, South Fourth Ring Road, Fengtai District, Beijing, 2508-2512 Patentee after: Beijing Polytron Technologies Inc Address before: 100069 Beijing City, Fengtai District An Wai Avenue No. 2 building 9B Canaan Patentee before: Beijing Enjiwei Electromechanical Technology Development Co., Ltd. |
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| DD01 | Delivery of document by public notice |
Addressee: Beijing Polytron Technologies Inc Document name: Notification of Passing Examination on Formalities |
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| DD01 | Delivery of document by public notice |
Addressee: Beijing Polytron Technologies Inc Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Polytron Technologies Inc Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20161203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |