CN104595061A - Double-mixer gas supply system - Google Patents
Double-mixer gas supply system Download PDFInfo
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- CN104595061A CN104595061A CN201510022411.5A CN201510022411A CN104595061A CN 104595061 A CN104595061 A CN 104595061A CN 201510022411 A CN201510022411 A CN 201510022411A CN 104595061 A CN104595061 A CN 104595061A
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- air inlet
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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 invention relates to a double-mixer gas supply system which comprises a pressure reducer, a gas rail assembly, a gas-mixing assembly and an engine gas inlet pipe, wherein a gas outlet end of the pressure reducer is communicated with a gas inlet end of the gas-mixing assembly through the gas rail assembly; a gas outlet end of the gas-mixing assembly is communicated with the engine gas inlet pipe; the gas-mixing assembly comprises a gas distributing control valve, a near-end mixer and a far-end mixer; the gas distributing control valve comprises a gas inlet interface, a near-end gas outlet interface and a far-end gas outlet interface; the gas inlet interface is communicated with a gas outlet end of the gas rail assembly; the near-end gas outlet interface is communicated with the engine gas inlet pipe through the near-end mixer; the far-end gas outlet interface successively passes through the far-end mixer and the near-end mixer and then is communicated with the engine gas inlet pipe; an air inlet communicated with an air filter is formed in the far-end mixer. The design for the double-mixer gas supply system can ensure the uniform mixing of gas and air, can effectively prevent temper and never prolongs the response time for the acceleration and deceleration of the vehicle.
Description
Technical field
The present invention relates to a kind of gas engine gas mixer, particularly relate to a kind of two mixer gas supply system, be specifically applicable to improve uniformity that combustion gas mixes with air, while do not affect vehicle response speed.
Background technique
The effect of mixer is to provide the place that air mixes with rock gas, whether the mixed gas formed in mixer evenly directly affects the performance output of motor and the uniformity of each cylinder working, and the gas of mixing inequality carries out burning and can cause the serious consequences such as engine scuffing.For the unfavorable factor that installation dimension and backfireproof are brought, mixer is often arranged and is arranged on the nearest position of distance suction tude.But the mixer that near-end is installed is unfavorable for when high engine speeds operates forming uniform mixed gas, causes each cylinder working of motor uneven.Such as: if Chinese patent Authorization Notice No. is CN2929217Y, authorized announcement date is that the utility model patent on August 1st, 2007 discloses a kind of liquefied natural gas distributor for taxi, belong to air distributing device, liquid container is connected with vaporizer with flow-limiting valve by liquid valve, vaporizer is connected with mixer with dynamic valve by low-voltage solenoid valve, reduction valve, mixer connecting engine, water tank is connected with motor by pipeline, motor is connected with vaporizer by circulating pipe, and level meter display device is connected with the signal adapter be placed in liquid container.This model utility reaction time is shorter, but its mixer and engine intake directly communicate and easily cause mixed gas uneven.
If mixer to be arranged in the position away from engine intake, namely between mixer and suction tude, to install extension tube additional, still there is unfavorable factor.At vehicle launch with when suddenly accelerating, because mixer position is comparatively far away, combustion gas needs just can be reached in engine intake by the relatively long time, causes automobile acceleration-deceleration to respond slack-off, be unfavorable for safe driving, and tempering risk is larger.
In sum, cause gas and vapor permeation uneven if only arrange near-end mixer, cause each cylinder working of motor uneven; If only arrange far-end mixer, cause the combustion gas gas circuit long response time affecting automobile acceleration and deceleration.Therefore, above-mentioned two kinds of equal existing defects of mode, are unfavorable for the normal operation of motor.
Summary of the invention
The object of the invention is to overcome the problem that the mixed gas that exists in prior art is uneven, provide a kind of mixed gas uniform two mixer gas supply system.
For realizing above object, technical solution of the present invention is:
A kind of two mixer gas supply system, comprise decompressor, gas rail assembly, mixed gas assembly and engine air inlet tube, the outlet side of described decompressor is communicated by the inlet end of gas rail assembly with mixed gas assembly, and the outlet side of described mixed gas assembly communicates with engine air inlet tube;
Described mixed gas assembly comprises combustion gas dividing control valve, near-end mixer and far-end mixer, described combustion gas dividing control valve comprises intake interface, near-end is given vent to anger interface, far-end is given vent to anger interface, described intake interface communicates with the outlet side of gas rail assembly, described far-end interface of giving vent to anger communicates with the far-end fuel gas inlet of far-end mixer, the far-end primary air inlet of described far-end mixer communicates with air-strainer, the far-end air outlet of far-end mixer communicates with the near-end primary air inlet of near-end mixer, near-end fuel gas inlet and the near-end of near-end mixer interface of giving vent to anger communicates, the near-end air outlet of near-end mixer communicates with engine air inlet tube.
Described combustion gas dividing control valve also comprises base and the stepper motor be mounted thereon and diaphragm electromagnetic valve, described intake interface communicates with chamber at the bottom of the suction port of the diaphragm electromagnetic valve in base, stepper motor air inlet respectively, and air outlet and the far-end of described diaphragm electromagnetic valve interface of giving vent to anger communicates; At the bottom of described stepper motor air inlet, the top in chamber communicates with the bottom in stepper motor air inlet top chamber, sidepiece and the near-end in stepper motor air inlet top chamber interface of giving vent to anger communicates, one end of the output shaft of described stepper motor is arranged at the inside of stepper motor, the other end of output shaft is arranged at stepper motor air inlet top chamber, output shaft end is provided with cone seal plug, and at the bottom of the bottom conical surface of described cone seal plug and motor air inlet, the top chamber wall in chamber is sealed and matched.
The outer cover of described output shaft is provided with holddown spring, and described holddown spring is arranged between the housing of stepper motor and cone seal plug.
Compared with prior art, beneficial effect of the present invention is:
1, combustion gas dividing control valve and two mixers is utilized to match mixing of combustion gas and air in the present invention's a kind of pair of mixer gas supply system; combustion gas dividing control valve distributes combustion gas and enters near-end mixer and far-end mixer; the design arranges near-end mixer and far-end mixer simultaneously; combustion gas dividing control valve is utilized to control the air inflow of near-end mixer and far-end mixer; guaranteeing that mixed gas is uniform while; do not affect the response time of automobile acceleration and deceleration, tempering phenomenon can not occur.Therefore, the design mix gas evenly, automobile acceleration and deceleration fast response time.
2, combustion gas dividing control valve in the present invention's a kind of pair of mixer gas supply system utilizes stepper motor and diaphragm electromagnetic valve to control the flow that combustion gas enters near-end mixer and far-end mixer, diaphragm electromagnetic valve only has break-make two states, and stepper motor can according to the position of the different Operating condition adjustment cone seal plugs of motor, thus control the throughput of near-end mixer gas-entered passageway, timely increase or minimizing enter the gas content in engine intake mixed gas, enable mixed gas system on mixed uniformly basis, do not extend the response time of motor, the contradiction of mixed gas evenly and between speed of response in effective solution prior art.Therefore, the design mixes that gas uniformity is good, fast response time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of combustion gas dividing control valve in Fig. 1.
Fig. 3 is the explosive view of combustion gas dividing control valve in Fig. 1.
In figure: decompressor 1, gas rail assembly 2, mixed gas assembly 3, near-end mixer 31, far-end mixer 32, far-end primary air inlet 33, far-end fuel gas inlet 34, far-end air outlet 35, near-end primary air inlet 36, near-end fuel gas inlet 37, near-end air outlet 38, engine air inlet tube 4, combustion gas dividing control valve 5, intake interface 51, near-end is given vent to anger interface 52, far-end is given vent to anger interface 53, base 6, stepper motor 7, chamber 71 at the bottom of stepper motor air inlet, stepper motor air inlet top chamber 72, output shaft 73, cone seal plug 74, holddown spring 75, diaphragm electromagnetic valve 8, suction port 81, air outlet 82.
Embodiment
Illustrate that the present invention is further detailed explanation with embodiment below in conjunction with accompanying drawing.
See Fig. 1 to Fig. 3, a kind of two mixer gas supply system, comprise decompressor 1, gas rail assembly 2, mixed gas assembly 3 and engine air inlet tube 4, the outlet side of described decompressor 1 is communicated by the inlet end of gas rail assembly 2 with mixed gas assembly 3, and the outlet side of described mixed gas assembly 3 communicates with engine air inlet tube 4;
Described mixed gas assembly 3 comprises combustion gas dividing control valve 5, near-end mixer 31 and far-end mixer 32, described combustion gas dividing control valve 5 comprises intake interface 51, near-end is given vent to anger interface 52, far-end is given vent to anger interface 53, described intake interface 51 communicates with the outlet side of gas rail assembly 2, described far-end interface 53 of giving vent to anger communicates with the far-end fuel gas inlet 34 of far-end mixer 32, the far-end primary air inlet 33 of described far-end mixer 32 communicates with air-strainer, the far-end air outlet 35 of far-end mixer 32 communicates with the near-end primary air inlet 36 of near-end mixer 31, near-end fuel gas inlet 37 and the near-end of near-end mixer 31 interface 52 of giving vent to anger communicates, the near-end air outlet 38 of near-end mixer 31 communicates with engine air inlet tube 4.
Described combustion gas dividing control valve 5 also comprises base 6 and the stepper motor 7 be mounted thereon and diaphragm electromagnetic valve 8, described intake interface 51 communicates with chamber 71 at the bottom of the suction port 81 of the diaphragm electromagnetic valve 8 in base 6, stepper motor air inlet respectively, and air outlet 82 and the far-end of described diaphragm electromagnetic valve 8 interface 53 of giving vent to anger communicates; At the bottom of described stepper motor air inlet, the top in chamber 71 communicates with the bottom in stepper motor air inlet top chamber 72, sidepiece and the near-end in stepper motor air inlet top chamber 72 interface 52 of giving vent to anger communicates, one end of the output shaft 73 of described stepper motor 7 is arranged at the inside of stepper motor 7, the other end of output shaft 73 is arranged at stepper motor air inlet top chamber 72, output shaft 73 end is provided with cone seal plug 74, and at the bottom of the bottom conical surface of described cone seal plug 74 and motor air inlet, the top chamber wall in chamber 71 is sealed and matched.
The outer cover of described output shaft 73 is provided with holddown spring 75, and described holddown spring 75 is arranged between the housing of stepper motor 7 and cone seal plug 74.
Principle of the present invention is described as follows:
In the design, fuel gas flow enters engine air inlet tube 4 after far-end mixer 32, near-end mixer 31, can be that combustion gas fully mixes with the air entering far-end mixer 32, then enter each combusted cylinder.
Fuel gas flow directly enters engine air inlet tube 4 by combustion gas dividing control valve 5 after near-end mixer 31, and this gas circuit is used for air feed under idling mode, or under automobile high-speed state helping air supply so that shorten the response time, accomplish timely acceleration and deceleration.
In the design, ECU carrys out interpretation load according to the data such as engine speed, throttle position, thus controls the action of two final controlling element diaphragm electromagnetic valves 8 and stepper motor 7.When motor height rotating speed, WOT, solenoid valve is opened, and combustion gas mainly enters suction tude through far-end mixer 32, and now stepper motor is in small guide vane or closed condition; When the slow-speed of revolution, closed throttle, ECU judges that motor is in idling, and diaphragm electromagnetic valve 8 is closed, and stepper motor 7 opens corresponding aperture according to ECU instruction.
Note: diaphragm electromagnetic valve 8 only has switch two kinds of working staties, and do not have half-open semi-closure state, stepper motor then controls aperture size according to signal, is divided into 225 steps progressively to complete whole aperture.
The air feed that the design controls combustion gas dividing control valve 5 by the adjustment aperture of stepper motor 7 and the open and-shut mode of diaphragm electromagnetic valve 8 distributes, and mix gas with certificates handling combustion gas does not affect speed of response uniformly simultaneously.
Tempering: in prior art, if the output terminal of mixer is connected (namely mixer is arranged at motor far-end) by pneumatic tube with engine air inlet tube 4, fire retardant device is not had between engine air inlet tube 4 and pneumatic tube, mixed gas in pneumatic tube easily burns, and tempering phenomenon occurs.As be directly communicated with engine air inlet tube 4 (namely mixer is arranged at motor near-end) by the output terminal of mixer, then tempering can not be there is.Not only the design is provided with near-end mixer 31 but also be provided with far-end mixer 32, can guarantee that mixed gas prevents the generation of tempering phenomenon uniformly simultaneously.
Embodiment 1:
See Fig. 1 to Fig. 3, a kind of two mixer gas supply system, comprise decompressor 1, gas rail assembly 2, mixed gas assembly 3 and engine air inlet tube 4, the outlet side of described decompressor 1 is communicated by the inlet end of gas rail assembly 2 with mixed gas assembly 3, and the outlet side of described mixed gas assembly 3 communicates with engine air inlet tube 4, described mixed gas assembly 3 comprises combustion gas dividing control valve 5, near-end mixer 31 and far-end mixer 32, described combustion gas dividing control valve 5 comprises intake interface 51, near-end is given vent to anger interface 52, far-end is given vent to anger interface 53, described intake interface 51 communicates with the outlet side of gas rail assembly 2, described far-end interface 53 of giving vent to anger communicates with the far-end fuel gas inlet 34 of far-end mixer 32, the far-end primary air inlet 33 of described far-end mixer 32 communicates with air-strainer, the far-end air outlet 35 of far-end mixer 32 communicates with the near-end primary air inlet 36 of near-end mixer 31, near-end fuel gas inlet 37 and the near-end of near-end mixer 31 interface 52 of giving vent to anger communicates, the near-end air outlet 38 of near-end mixer 31 communicates with engine air inlet tube 4, described combustion gas dividing control valve 5 also comprises base 6 and the stepper motor 7 be mounted thereon and diaphragm electromagnetic valve 8, described intake interface 51 communicates with chamber 71 at the bottom of the suction port 81 of the diaphragm electromagnetic valve 8 in base 6, stepper motor air inlet respectively, and air outlet 82 and the far-end of described diaphragm electromagnetic valve 8 interface 53 of giving vent to anger communicates, at the bottom of described stepper motor air inlet, the top in chamber 71 communicates with the bottom in stepper motor air inlet top chamber 72, sidepiece and the near-end in stepper motor air inlet top chamber 72 interface 52 of giving vent to anger communicates, one end of the output shaft 73 of described stepper motor 7 is arranged at the inside of stepper motor 7, the other end of output shaft 73 is arranged at stepper motor air inlet top chamber 72, output shaft 73 end is provided with cone seal plug 74, and at the bottom of the bottom conical surface of described cone seal plug 74 and motor air inlet, the top chamber wall in chamber 71 is sealed and matched, the outer cover of described output shaft 73 is provided with holddown spring 75, and described holddown spring 75 is arranged between the housing of stepper motor 7 and cone seal plug 74.
Claims (3)
1. a two mixer gas supply system, comprise decompressor (1), gas rail assembly (2), mixed gas assembly (3) and engine air inlet tube (4), the outlet side of described decompressor (1) is communicated by the inlet end of gas rail assembly (2) with mixed gas assembly (3), the outlet side of described mixed gas assembly (3) communicates with engine air inlet tube (4), it is characterized in that:
Described mixed gas assembly (3) comprises combustion gas dividing control valve (5), near-end mixer (31) and far-end mixer (32), described combustion gas dividing control valve (5) comprises intake interface (51), near-end is given vent to anger interface (52), far-end is given vent to anger interface (53), described intake interface (51) communicates with the outlet side of gas rail assembly (2), described far-end interface (53) of giving vent to anger communicates with the far-end fuel gas inlet (34) of far-end mixer (32), the far-end primary air inlet (33) of described far-end mixer (32) communicates with air-strainer, the far-end air outlet (35) of far-end mixer (32) communicates with the near-end primary air inlet (36) of near-end mixer (31), near-end fuel gas inlet (37) and the near-end of near-end mixer (31) interface (52) of giving vent to anger communicates, the near-end air outlet (38) of near-end mixer (31) communicates with engine air inlet tube (4).
2. the two mixer gas supply system of one according to claim 1, is characterized in that:
Described combustion gas dividing control valve (5) also comprises base (6) and the stepper motor (7) be mounted thereon and diaphragm electromagnetic valve (8), described intake interface (51) communicates with chamber (71) at the bottom of the suction port (81) of the diaphragm electromagnetic valve (8) in base (6), stepper motor air inlet respectively, and air outlet (82) and the far-end of described diaphragm electromagnetic valve (8) interface (53) of giving vent to anger communicates; At the bottom of described stepper motor air inlet, the top of chamber (71) communicates with the bottom in stepper motor air inlet top chamber (72), sidepiece and the near-end in stepper motor air inlet top chamber (72) interface (52) of giving vent to anger communicates, one end of the output shaft (73) of described stepper motor (7) is arranged at the inside of stepper motor (7), the other end of output shaft (73) is arranged at stepper motor air inlet top chamber (72), output shaft (73) end is provided with cone seal plug (74), and at the bottom of the bottom conical surface of described cone seal plug (74) and motor air inlet, the top chamber wall in chamber (71) is sealed and matched.
3. the two mixer gas supply system of one according to claim 2, is characterized in that:
The outer cover of described output shaft (73) is provided with holddown spring (75), and described holddown spring (75) is arranged between the housing of stepper motor (7) and cone seal plug (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022411.5A CN104595061B (en) | 2015-01-16 | 2015-01-16 | Double-mixer gas supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022411.5A CN104595061B (en) | 2015-01-16 | 2015-01-16 | Double-mixer gas supply system |
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| Publication Number | Publication Date |
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| CN104595061A true CN104595061A (en) | 2015-05-06 |
| CN104595061B CN104595061B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510022411.5A Active CN104595061B (en) | 2015-01-16 | 2015-01-16 | Double-mixer gas supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033582A (en) * | 2021-11-12 | 2022-02-11 | 中船动力研究院有限公司 | Gas, ventilative distributor and boats and ships |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929756A (en) * | 1982-08-11 | 1984-02-17 | Automob Antipollut & Saf Res Center | Fuel feeder of liquefied gas internal combustion engine |
| DE3425364A1 (en) * | 1984-07-10 | 1986-01-23 | Fritz Werner Industrie-Ausrüstungen GmbH, 6222 Geisenheim | Gas-air mixing unit |
| CN2095944U (en) * | 1991-01-28 | 1992-02-12 | 重庆建筑工程学院 | Compressed natural gas mixer for gasoline, natural gas double fuel car |
| CN1696487A (en) * | 2005-05-15 | 2005-11-16 | 东风汽车有限公司 | Engine natural gas mixer |
| JP4747132B2 (en) * | 2007-05-25 | 2011-08-17 | 東邦瓦斯株式会社 | Power generation system |
| CN204476597U (en) * | 2015-01-16 | 2015-07-15 | 东风商用车有限公司 | A kind of two mixer gas supply system |
-
2015
- 2015-01-16 CN CN201510022411.5A patent/CN104595061B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929756A (en) * | 1982-08-11 | 1984-02-17 | Automob Antipollut & Saf Res Center | Fuel feeder of liquefied gas internal combustion engine |
| DE3425364A1 (en) * | 1984-07-10 | 1986-01-23 | Fritz Werner Industrie-Ausrüstungen GmbH, 6222 Geisenheim | Gas-air mixing unit |
| CN2095944U (en) * | 1991-01-28 | 1992-02-12 | 重庆建筑工程学院 | Compressed natural gas mixer for gasoline, natural gas double fuel car |
| CN1696487A (en) * | 2005-05-15 | 2005-11-16 | 东风汽车有限公司 | Engine natural gas mixer |
| JP4747132B2 (en) * | 2007-05-25 | 2011-08-17 | 東邦瓦斯株式会社 | Power generation system |
| CN204476597U (en) * | 2015-01-16 | 2015-07-15 | 东风商用车有限公司 | A kind of two mixer gas supply system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033582A (en) * | 2021-11-12 | 2022-02-11 | 中船动力研究院有限公司 | Gas, ventilative distributor and boats and ships |
| CN114033582B (en) * | 2021-11-12 | 2023-02-03 | 中船动力研究院有限公司 | Gas, ventilative distributor and boats and ships |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104595061B (en) | 2017-01-25 |
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