CN2864131Y - Engine gas fuel control valve - Google Patents
Engine gas fuel control valve Download PDFInfo
- Publication number
- CN2864131Y CN2864131Y CNU2006201099405U CN200620109940U CN2864131Y CN 2864131 Y CN2864131 Y CN 2864131Y CN U2006201099405 U CNU2006201099405 U CN U2006201099405U CN 200620109940 U CN200620109940 U CN 200620109940U CN 2864131 Y CN2864131 Y CN 2864131Y
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- CN
- China
- Prior art keywords
- valve
- control valve
- diaphragm
- gas
- suction tude
- 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
An engine gas fuel control valve has a gas inlet channel (18) and a gas outlet channel (9) on the pressure reducing valve (23), and a valve stem (5) is connected on a diaphragm (6) of a flow control valve (22). One end of the valve stem (5) is connected to a diaphragm spring (7), while the other end locats on the port of the main orifice (1a) on the gas inlet duct (1); one end of the diaphragm (6) is connected to the atmosphere, while the other side is linked to the gas inlet end of the engine cylinder; one end of the gas inlet channel (8) of the flow control valve (22) is linked to the gas outlet channel (9) on the pressure reducing valve (23), while another end is linked to the port of the main orifice (1a). The present utility model uses the pressure reducing valve to carry out decompression and stabilizing to the combustion gas, and uses the negative pressure generated on the gas inlet end of the cylinder when the engine is running to control the opening and closing of the valve, and the size of the jaw opening, which makes gas flow control with stability and high reliability; the present utility model also has a simple structure, low cost, and can be used in motorcycle engines or small machines which take tha natural gas and the liquefied petroleum gas as its fuel.
Description
Technical field
The utility model belongs to technical field of engines, specifically, relates to a kind of air fuel mix control valve device of gas engine.
Background technique
At present, motor car engine or logical machine are fuel with gasoline or diesel oil usually, fuel will be earlier through the Carburetor atomizing, enter combustion chambers burn after spraying into cylinder and air mixing again.This is that the tail gas that motor was given off of fuel is more serious to the damage ratio of atmosphere with gasoline or diesel oil, has become one of main pollution sources; In addition, along with the rapid increase of social vapour, diesel oil consumption, the situation that supply falls short of demand has appearred in vapour, diesel oil in recent years, so people have taken up to use inflammable gas as energy gasoline replacing or diesel oil in the field that has.Through transforming, existing part automobile adopts compressed natural gas as motor fuel on the market now, compressed natural gas is regulated back and air mixing through gaseous fuel control valve, and then enter combustion chambers burn, but this gaseous fuel control valve complex structure, cost an arm and a leg, be not suitable on mini engine, using.
The model utility content
The purpose of this utility model provide a kind of control stable, reliable, simple in structure, become body, be particularly useful for the engine gas control valve of small gas motor.
For this reason, engine gas control valve described in the utility model, comprise suction tude, two of suction tude inner chamber has chock plate and closure respectively, main jet is arranged on the suction tude, this main jet communicates with the suction tude inner chamber, and suction tude is connected an end of flow control valve, and the other end of flow control valve is connected with reduction valve; Described reduction valve is provided with gas inlet passage and combustion gas air outlet channel; Described flow control valve is the diaphragm valve structure, be connected with valve rod on its diaphragm, one end of valve rod links to each other with diaphragm spring, the other end is positioned at the port of main jet on the suction tude, the valve pocket of diaphragm one side communicates with atmosphere by the vent on the sidewall, and the valve pocket of opposite side communicates with the suction port end of cylinder by vacuum passage, and blast tube is arranged on the flow control valve, one end of this blast tube communicates with combustion gas air outlet channel on the reduction valve, and the other end communicates with the main jet end of suction tude.
Above-mentioned reduction valve can be the diaphragm valve structure, is connected with push rod on its diaphragm, and an end of push rod links to each other with diaphragm spring, and the other end is equipped with rocker lever, and an end of rocker lever is positioned at the port of gas inlet passage.
Suction tude is identical with the air feeder structure of fuel engine Carburetor in the utility model, its outline overall and installing dimensions also can remain unchanged, the shared space of flow control valve and reduction valve promptly is the position of original Carburetor lubricating cup, do not influence the assembling of motor, be convenient to existing fuel engine is transformed not increasing under how many condition of cost.Reduction valve is used for the combustion gas that enters is reduced pressure and voltage stabilizing.Flow control valve is used to realize that the combustion gas to entering suction tude carries out flow control according to the working condition of motor, stable and reliable, on flow control valve, the valve pocket of diaphragm both sides communicates with ambient atmosphere and cylinder suction port end respectively, and when engine running, cylinder suction port end produces negative pressure, make diaphragm pressure at both sides disequilibrium, diaphragm drives valve rod and opens main jet, and combustion gas enters suction tude through main jet, and enters combustion chambers burn after the air mixing; During engine stoping operation, the negative pressure of cylinder suction port end disappears, and diaphragm drive valve rod resets and closes main jet.
The beneficial effects of the utility model are: control is stable, reliability is high, simple in structure, and cost is low, and can be used for rock gas, liquefied petroleum gas (LPG) is the motorcycle engine or the small-sized logical machine of fuel.
Description of drawings
Fig. 1 is an outline drawing of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, the suction tude 1 of this engine gas control valve is identical with carburetor air pipe on the fuel engine, two of suction tude 1 inner chamber has chock plate 2 and closure 3 respectively, main jet 1a is arranged on the suction tude 1, this main jet 1a communicates with suction tude 1 inner chamber, suction tude 1 is connected an end of flow control valve 22, and the other end of flow control valve 22 is connected with reduction valve 23; Reduction valve 23 is provided with gas inlet passage 18 and combustion gas air outlet channel 9; Flow control valve 22 is the diaphragm valve structure, be connected with valve rod 5 on its diaphragm 6, one end of valve rod 5 links to each other with diaphragm spring 7, the other end is positioned at the port of main jet 1a on the suction tude 1, the valve pocket 24 of diaphragm 6 one sides communicates with atmosphere by the vent on the sidewall 10, the valve pocket 25 of opposite side communicates with the suction port end of cylinder by vacuum passage 11, blast tube 8 is arranged on the flow control valve 22, one end of this blast tube 8 communicates with combustion gas air outlet channel 9 on the reduction valve 23, and the other end communicates with the main jet 1a end of suction tude 1.
Fig. 2 illustrates reduction valve 23 and is the diaphragm valve structure, is connected with push rod 15 on its diaphragm 13, and an end of push rod 15 links to each other with diaphragm spring 14, and the other end is equipped with rocker lever 16, and an end of rocker lever 16 is positioned at the port of gas inlet passage 18.Combustion gas enters valve pocket 26 between diaphragm 13 upsides and the valve body by gas inlet passage 18, realizes decompression and voltage stabilizing under the effect of diaphragm 13 and diaphragm spring 14.
The end that Fig. 2 also illustrates diaphragm spring 14 is connected with adjusting bolt 20, and this adjusting bolt 20 is installed on reduction valve 23 housings by locking nut, can realize the pretightening force of diaphragm spring 14 is adjusted by regulating bolt 20.The end that rocker lever 16 is positioned at gas inlet passage 18 ports is provided with sealing block 17, the end that valve rod 5 is positioned at main jet 1a port on the suction tude 1 is provided with sealing block 4, sealing reliably prevented the combustion gas leakage when gas inlet passage 18 and main jet 1a port were closed.The valve pocket 24 of flow control valve 22 upper diaphragms 6 one sides communicates with the suction port end of cylinder by rubber pipe 19 and thermal baffle 12, hole on the inner chamber of rubber pipe 19 and the thermal baffle 12 forms vacuum passage 11, thermal baffle 12 is installed in an end of close chock plate 2 on the suction tude 1, adopt rubber pipe 19 can avoid punching in addition on flow control valve 22 and suction tude 1, adopt thermal baffle 12 to prevent that the high temperature of cylinder from damaging rubber pipe 19.Label 21 is the gas-tpe fittings that link to each other with gas inlet passage 18 on the reduction valve 23 among Fig. 1.
Working principle: referring to Fig. 2, inflammable gas is connected to gas inlet passage 18 on the reduction valve 23 by joint during use.When motor does not start, reduction valve 23 interior diaphragms about in the of 13 pressure at both sides be in state of equilibrium, flow control valve 22 interior diaphragms about in the of 6 pressure at both sides also be in state of equilibrium, the sealing block 4 of valve rod 5 upper ends is blocked main jet 1a lower end mouth; When engine start, the suction port end of cylinder produces certain negative pressure, valve pocket 25 pressure of diaphragm 6 downsides descend, diaphragm 6 drives valve rods 5 and moves down and open main jet 1a, combustion gas enters suction tude 1 through main jet 1a, mix with chock plate 2 place's inhaled airs, become inflammable mixture, inflammable mixture is inhaled into cylinder by closure 3 and burns.In the engine operation process, flow control valve 22 is adjusted the switching and the aperture size at main jet 1a lower end mouth place according to the negative pressure variation of cylinder air inlet end by diaphragm 6 and valve rod 5 in good time, thereby reaches the purpose of control gas flow.
Claims (6)
1, a kind of engine gas control valve, comprise suction tude (1), two of suction tude (1) inner chamber has chock plate (2) and closure (3) respectively, main jet (1a) is arranged on the suction tude (1), this main jet (1a) communicates with suction tude (1) inner chamber, it is characterized in that: described suction tude (1) is connected an end of flow control valve (22), and the other end of flow control valve (22) is connected with reduction valve (23); Described reduction valve (23) is provided with gas inlet passage (18) and combustion gas air outlet channel (9); Described flow control valve (22) is the diaphragm valve structure, be connected with valve rod (5) on its diaphragm (6), one end of valve rod (5) links to each other with diaphragm spring (7), the other end is positioned at the port that suction tude (1) goes up main jet (1a), the valve pocket (24) of diaphragm (6) one sides communicates with atmosphere by the vent on the sidewall (10), the valve pocket of opposite side (25) communicates with the suction port end of cylinder by vacuum passage (11), blast tube (8) is arranged on the flow control valve (22), one end of this blast tube (8) communicates with combustion gas air outlet channel (9) on the reduction valve (23), and the other end communicates with main jet (1a) end of suction tude (1).
2, engine gas control valve according to claim 1, it is characterized in that: described reduction valve (23) is the diaphragm valve structure, be connected with push rod (15) on its diaphragm (13), one end of push rod (15) links to each other with diaphragm spring (14), the other end is equipped with rocker lever (16), and an end of rocker lever (16) is positioned at the port of gas inlet passage (18).
3, engine gas control valve according to claim 2 is characterized in that: an end of described diaphragm spring (14) is connected with regulates bolt (20), and this adjusting bolt (20) is installed on reduction valve (23) housing by locking nut.
4, engine gas control valve according to claim 2 is characterized in that: the end that described rocker lever (16) is positioned at gas inlet passage (18) port is provided with sealing block (17).
5, engine gas control valve according to claim 1 is characterized in that: the end that described valve rod (5) is positioned at last main jet (1a) port of suction tude (1) is provided with sealing block (4).
6, engine gas control valve according to claim 1, it is characterized in that: the valve pocket (24) of described flow control valve (22) upper diaphragm (6) one sides communicates with the suction port end of cylinder by rubber pipe (19) and thermal baffle (12), hole on the inner chamber of rubber pipe (19) and the thermal baffle (12) forms vacuum passage (11), and thermal baffle (12) is installed in the end that suction tude (1) goes up close chock plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201099405U CN2864131Y (en) | 2006-02-15 | 2006-02-15 | Engine gas fuel control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201099405U CN2864131Y (en) | 2006-02-15 | 2006-02-15 | Engine gas fuel control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864131Y true CN2864131Y (en) | 2007-01-31 |
Family
ID=37676583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201099405U Expired - Fee Related CN2864131Y (en) | 2006-02-15 | 2006-02-15 | Engine gas fuel control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2864131Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763556A (en) * | 2015-04-13 | 2015-07-08 | 福鼎市欧力动力科技制造有限公司 | Mixer of both fuel gases for yacht outboard engine and universal engine as well as application method thereof |
| CN107461280A (en) * | 2017-05-23 | 2017-12-12 | 郑节昭 | Power modified form diaphragm type carburator |
| CN108952977A (en) * | 2018-08-20 | 2018-12-07 | 江苏农华智慧农业科技股份有限公司 | A kind of integral type Dual-fuel mixer |
| CN109578173A (en) * | 2019-01-24 | 2019-04-05 | 夏品清 | A kind of carbureter fuel direct-furnish method and its assembly |
| CN109907962A (en) * | 2019-03-12 | 2019-06-21 | 广东斐瑞智能技术有限公司 | A kind of skin-cleaning beauty instrument, the realization method and system for improving body beauty effect |
| CN109907962B (en) * | 2019-03-12 | 2024-05-17 | 广东斐瑞智能技术有限公司 | Method and system for realizing skin cleaning and beautifying instrument and improving skin cleaning and beautifying effects |
-
2006
- 2006-02-15 CN CNU2006201099405U patent/CN2864131Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763556A (en) * | 2015-04-13 | 2015-07-08 | 福鼎市欧力动力科技制造有限公司 | Mixer of both fuel gases for yacht outboard engine and universal engine as well as application method thereof |
| CN107461280A (en) * | 2017-05-23 | 2017-12-12 | 郑节昭 | Power modified form diaphragm type carburator |
| CN107461280B (en) * | 2017-05-23 | 2023-06-30 | 郑节昭 | Dynamic improved diaphragm carburetor |
| CN108952977A (en) * | 2018-08-20 | 2018-12-07 | 江苏农华智慧农业科技股份有限公司 | A kind of integral type Dual-fuel mixer |
| CN109578173A (en) * | 2019-01-24 | 2019-04-05 | 夏品清 | A kind of carbureter fuel direct-furnish method and its assembly |
| CN109907962A (en) * | 2019-03-12 | 2019-06-21 | 广东斐瑞智能技术有限公司 | A kind of skin-cleaning beauty instrument, the realization method and system for improving body beauty effect |
| CN109907962B (en) * | 2019-03-12 | 2024-05-17 | 广东斐瑞智能技术有限公司 | Method and system for realizing skin cleaning and beautifying instrument and improving skin cleaning and beautifying effects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ZONGSHEN GENERAL DYNAMICS MACHINERY CO. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO., LTD. Effective date: 20080307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080307 Address after: Banan District, Chongqing oil field, zip code: 400054 Patentee after: Chongqing Zongshen General Power Machine Co., Ltd. Address before: No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu, 400039 Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20140215 |