CN2073481U - Definite proportion mixer of fuel for fuel gas engine - Google Patents
Definite proportion mixer of fuel for fuel gas engine Download PDFInfo
- Publication number
- CN2073481U CN2073481U CN 90206562 CN90206562U CN2073481U CN 2073481 U CN2073481 U CN 2073481U CN 90206562 CN90206562 CN 90206562 CN 90206562 U CN90206562 U CN 90206562U CN 2073481 U CN2073481 U CN 2073481U
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- gas
- valve
- fuel
- air
- mixer
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Abstract
A definite proportion mixer of fuel for fuel gas engine relates to the fuel supply of the fuel gas engine. Air enters through an air inlet channel. Fuel gas enters through a fuel gas channel. A slide valve controls the open and the close of an air valve and a fuel gas valve at the same time. According to different fuel gas, the area of section of the given air valve has a definite proportional relation with the area of section of the fuel gas valve given, the gas mixture fuel of the air and the fuel gas can be supplied in a definite proportion. This definite proportion mixer of fuel can also automatically adjust the amount of the gas mixture supplied according to the operating condition request of the fuel gas engine.
Description
The utility model relates to the device of gas fuel engine fuel supply.
Gas fuel engine acts as a fuel with inflammable gas and air mixing, different gaseous fuels, and its proportions of ingredients is also different; Inflammable gas and air Mixture are supplied with what, also the working condition according to internal-combustion engine changes.Be to realize that above-mentioned requirements, prior art are to realize by the valve that lever, connecting rod are controlled air, inflammable gas and mixed gas respectively.Its deficiency is complex structure, adjusts difficulty, can only meet the mixed proportion of air and inflammable gas approx, and can not according to the working condition requirement of internal-combustion engine regulate automatically supply with mixed gas how much, thereby influence the service behaviour of internal-combustion engine.
The purpose of this utility model is to overcome above-mentioned deficiency and provides a kind of gas fuel engine fuel surely than mixer, according to different combustible fuel gas, the mixed gas of air supply and inflammable gas certainty ratio relation, and can regulate what of mixed gas automatically according to the operating mode of internal-combustion engine.
Description of the present utility model is as follows: gas fuel engine fuel is fixed to be installed in the intake lines of combustion engines upper end than mixer, and the suction tude by flange and internal-combustion engine is connected.The fixed compositions such as free-air diffuser, Air valves, inflammable gas passage, combustible gas valve, guiding valve, mixing chamber, closure, small channel, pressure spring that mainly contain than mixer of fuel, air is entered by free-air diffuser by air-strainer, inflammable gas is entered by the inflammable gas passage, free-air diffuser has Air valves, and the inflammable gas passage has the inflammable gas valve.Guiding valve has two valve faces whiles and Air valves, inflammable gas valve to match.Guiding valve can horizontally slip at the slide valve seat intracoelomic cavity.The guiding valve left side has pressure spring supporting, and under the pressure spring effect, slides to the right and closes Air valves and combustible gas valve simultaneously.On the combustible gas valve seat, adjusting nut is housed,, can makes guiding valve while and Air valves and inflammable gas valve that good sealing is arranged by adjusting nut.Below Air valves and inflammable gas valve mixing chamber is arranged, the air chamber of mixing chamber and guiding valve left end has small channel and damping hole to be connected.When the internal-combustion engine suction stroke, produce negative pressure in the fixed mixing chamber of the fuel of the present utility model that is connected with the air-intake of combustion engine pipeline than mixer, the air chamber of the guiding valve left end that communicates with mixing chamber by small channel, damping hole also produces negative pressure.Under suction function, the elastic force that guiding valve overcomes pressure spring slides left, opens Air valves and inflammable gas valve simultaneously, and air and inflammable gas enter mixing chamber by valve separately.Because the channel cross-sectional area of Air valves and the channel cross-sectional area of combustible gas valve are the certainty ratio relations by designing requirement, so entering the air and the inflammable gas of mixing chamber also is the certainty ratio relation, the air of certainty ratio relation and inflammable gas are after mixing chamber mixes, enter intake lines of combustion engines by closure, enter the firing chamber by valve again, finish the fuel supply of internal-combustion engine.The working condition different according to internal-combustion engine, negative pressure at mixing chamber varies, the negative pressure that is attached thereto logical guiding valve left end air chamber also varies, the stroke that guiding valve slides left also varies, the Air valves of being controlled simultaneously by guiding valve and the open channel sectional area of combustible gas valve also vary, thereby what of mixed gas realize regulating automatically according to the operating mode of internal-combustion engine supplies with.The effect of damping hole is that the variation of air chamber negative pressure is relaxed, thereby the action that guiding valve is horizontally slipped is more blunt a little, to stablize the work of internal-combustion engine.Also have adjusting screw and spring seat to contact at the guiding valve left end.The contract tension force of spring of the adjustable seamless of adjusting screw makes the relative equilibrium of guiding valve confining force when a certain position.Air valves and inflammable gas valve are made the plane or are had cone shape, 10～180 ° of cone angles.Under certain spool stroke condition, change the size and the cone shape that is equipped with different amount of valve nominal diameter, can obtain different valve passage sectional areas.Different inflammable gass, the proportions of ingredients of air and inflammable gas is from 0.8:1 to 10:1.According to the proportions of ingredients requirement of air and inflammable gas, the nominal diameter of design air valve, combustible gas valve and be equipped with the valve cone angle can be realized the supply mixed gas of certainty ratio respectively.Supply with part at the fixed combustible gas of gas fuel engine fuel of the present utility model starting upgraded mechanism also is housed than mixer, becoming with the combustible gas passage on 90 ° the direction cam face is arranged, with cam face is contacted rotary handle arranged, the combustible gas valve seat has the head of elongation to stretch ， And nut tightening Wai handle.During starting, manually or with speed regulator drive handle make it rotate an angle, because and the effect of the contacted cam face of handle, make handle drive the combustible gas valve seat and outwards move a distance, thereby strengthen the channel cross-section of inflammable gas valve, increase the delivery volume of inflammable gas, make air-fuel mixture enrichment, help starting.Handle with sleeve is got back to the origin-location, and under the pressure spring effect, the combustible gas valve seat returns to the origin-location, by the mixed gas fuel supply of deciding ratio.
Below in conjunction with drawings and Examples the utility model is further elaborated.
Figure is the fixed structural representation than mixer of gas fuel engine fuel of the present utility model.1-free-air diffuser among the figure, 2-adjusts screw, 3-air chamber, the 4-pressure spring, 5-damping hole, 6-small channel, the 7-guiding valve, 8-Air valves, 9-inflammable gas valve, the 10-closure, 11-mixing chamber, 12-flange, the 13-adjusting nut, 14-handle, 15-nut, the 16-cam face, 17-combustible gas valve seat, 18-combustible gas passage.
As inflammable gas, the proportions of ingredients of air and coke-stove gas is 4:1 with coke-stove gas, and the internal-combustion engine that is applied to cylinder diameter and is 135 millimeters is as embodiment of the present utility model.Fixed upper end and the suction tude that is installed in intake lines of combustion engines than mixer of gas fuel engine fuel of the present utility model is connected by flange (12).Air is entered by free-air diffuser (1) by air-strainer, and coke-stove gas is entered by combustible gas passage (18).The free-air diffuser cross section is 78 millimeters of φ, and the inflammable gas channel cross-section is 25 millimeters of φ.At free-air diffuser (1) Air valves (8) is arranged, inflammable gas valve (9) is arranged at combustible gas passage (18).Air valves (8) becomes plane valve, 90 millimeters of outer end diameter phi; Inflammable gas valve (9) is cone shape, and 104 ° of cone angles, diameter at butt end are 30 millimeters of φ.Guiding valve (7) has two valve faces whiles and Air valves (8), inflammable gas valve (9) to match.Guiding valve (7) can horizontally slip at the slide valve seat intracoelomic cavity.Guiding valve (7) left side has pressure spring (4) supporting, and adjusts screw (2) and spring seat and contacts.Under the effect of pressure spring (4), guiding valve (7) slides to the right and cuts out Air valves (8) and inflammable gas valve (9) simultaneously.Adjusting nut (13) is housed on combustible gas valve seat (17), can makes guiding valve (7) while and Air valves (8), inflammable gas valve (9) that good sealing is arranged.There is mixing chamber (11) below at Air valves (8) and inflammable gas valve (9), and the air chamber (3) of mixing chamber (11) and guiding valve left end has small channel (6), damping hole (5) to be connected.When the internal-combustion engine suction stroke, the air chamber (3) that produces negative pressure guiding valve (7) left end in the mixing chamber (11) that is connected with the air-intake of combustion engine pipeline also produces negative pressure.Under suction function, the elastic force that guiding valve (7) overcomes pressure spring (4) slides left, Air valves (8) and inflammable gas valve (9) are opened simultaneously, and air and coke-stove gas enter mixing chamber (11) by Air valves (8), combustible gas valve (9) respectively simultaneously.The cross section of mixing chamber is 78 millimeters of φ.Press the air that the 4:1 relation is mixed, coke-stove gas enters the firing chamber by closure (10) after mixing.Finish the fuel supply of internal-combustion engine.Donor site at coke-stove gas also is equipped with starting upgraded mechanism, becoming with combustible gas passage (18) on 90 ° the direction cam face (16) is arranged, rotary handle (14) and cam face (16) contact, combustible gas valve seat (17) has the head of an elongation, stretch outside handle (14), screw with nut (15).During starting, with manually or drive handle (14) with speed regulator and rotate an angle because and the effect of the contacted cam face of handle (16), make handle (14) drive combustible gas valve seat (17) and outwards move a distance.Thereby strengthen the channel cross-section of inflammable gas valve (9), increase the delivery volume of coke-stove gas, make air-fuel mixture enrichment, help starting.Handle with sleeve is got back to the origin-location, and under the effect of the pressure spring that offsets with inflammable gas valve seat (17), inflammable gas valve seat (17) returns to original position, by the cooperation gas fuel supply of deciding ratio.
Advantage of the present utility model: the opening and closing of the guiding valve of definite proportion mixer of fuel for fuel gas engine (7) energy while control air valve door (8) and fuel gas valve (9), according to different gaseous fuels, given air door channel cross-sectional area becomes certain proportionate relationship with fuel gas valve passage sectional area, just the air supply of energy certainty ratio and the gaseous mixture of fuel gas. Fuel of the present utility model is fixed can also be according to the operating mode of internal combustion engine than blender, and what of gaseous mixture fuel adjusting supply with automatically.
Claims (5)
1, the gas fuel engine fuel that relates to the gas fuel engine fuel supply is surely than mixer, it is characterized in that fuel is fixed main by free-air diffuser (1) than mixer, Air valves (8), combustible gas passage (18), inflammable gas valve (9), guiding valve (7), mixing chamber (11), closure (10), small channel (6), pressure spring (4), compositions such as starting upgraded mechanism, at free-air diffuser (1) Air valves (8) is arranged, at combustible gas passage (18) inflammable gas valve (9) is arranged, guiding valve (7) has two valve faces whiles and Air valves (8), inflammable gas valve (9) matches, there is mixing chamber (11) below at Air valves (8) and inflammable gas valve (9), mixing chamber (11) is by small channel (6), the air chamber (3) of damping hole (5) and guiding valve (7) left end communicates, and mixed gas is sent to the suction tude of internal-combustion engine through closure (10).
2, gas fuel engine fuel according to claim 1 is fixed than mixer, it is characterized in that Air valves (8) and inflammable gas valve (9) make the plane or have cone shape, and cone angle is 10～180 °.
3, gas fuel engine fuel according to claim 1 is fixed is characterized in that than mixer guiding valve (7) left side has pressure spring (4) supporting, and adjusts screw (2) and spring seat and contacts.
4, gas fuel engine fuel according to claim 1 is surely than mixer, it is characterized in that starting upgraded mechanism also being housed at the donor site of inflammable gas, becoming with combustible gas passage (18) on 90 ° the direction cam face (16) is arranged, rotary handle (14) and cam face contact, the head of combustible gas valve seat (17) is stretched outside handle (14), screws with nut (15).
5, gas fuel engine fuel according to claim 1 is fixed than mixer, it is characterized in that being equipped with on the combustible gas valve seat (17) adjusting nut (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90206562 CN2073481U (en) | 1990-05-14 | 1990-05-14 | Definite proportion mixer of fuel for fuel gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90206562 CN2073481U (en) | 1990-05-14 | 1990-05-14 | Definite proportion mixer of fuel for fuel gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2073481U true CN2073481U (en) | 1991-03-20 |
Family
ID=4887128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90206562 Expired - Lifetime CN2073481U (en) | 1990-05-14 | 1990-05-14 | Definite proportion mixer of fuel for fuel gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2073481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847636B (en) * | 2005-04-08 | 2010-08-18 | 爱信精机株式会社 | Mixer for engine, air conditioning apparatus, and power generation apparatus |
| CN105971772A (en) * | 2016-05-20 | 2016-09-28 | 浙江星月实业有限公司 | Fuel gas mixer of engine and hot-pressing installation method of cam structures |
-
1990
- 1990-05-14 CN CN 90206562 patent/CN2073481U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847636B (en) * | 2005-04-08 | 2010-08-18 | 爱信精机株式会社 | Mixer for engine, air conditioning apparatus, and power generation apparatus |
| CN105971772A (en) * | 2016-05-20 | 2016-09-28 | 浙江星月实业有限公司 | Fuel gas mixer of engine and hot-pressing installation method of cam structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |