CN106438148A - Gas nozzle for anti-actuation gas ejection valve - Google Patents
Gas nozzle for anti-actuation gas ejection valve Download PDFInfo
- Publication number
- CN106438148A CN106438148A CN201611061006.5A CN201611061006A CN106438148A CN 106438148 A CN106438148 A CN 106438148A CN 201611061006 A CN201611061006 A CN 201611061006A CN 106438148 A CN106438148 A CN 106438148A
- Authority
- CN
- China
- Prior art keywords
- valve
- jet pipe
- gas
- air jet
- dynamic formula
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1893—Details of valve member ends not covered by groups F02M61/1866 - F02M61/188
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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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lift Valve (AREA)
Abstract
The invention is aimed at providing a gas nozzle for an anti-actuation gas ejection valve. The gas nozzle comprises a gas ejection pipe and a gas cut valve, wherein the gas ejection pipe is a hollow structure; an rifled pipe is arranged at the upper end of the gas ejection pipe; the diameter of the rifled pipe is greater than the diameter of other parts of the gas ejection pipe; the gas ejection pipe is connected with a shell of the anti-actuation gas ejection valve above through the rifled pipe; the lower end of the gas ejection pipe is a closed structure; a gas ejection hole is formed in the side wall of the gas ejection pipe; the gas cut valve is mounted in the gas ejection pipe and comprises an upper valve rod, a guide shaft, a lower valve rod and a valve disk in sequential connection; the upper valve rod is connected with a valve core of the anti-actuation gas ejection valve; the valve disk is a piston structure; the guide shaft is in clearance fit with the gas ejection pipe; the guide shaft divides the hollow structure of the gas ejection pipe into an upper cavity and a lower cavity; and a waist hole connecting the upper cavity and the lower cavity is formed in the guide shaft. In the invention, the control of the jet flow direction and position of natural gas as well as quick cut of the gas can be realized, and the combustion process of a gas/dual-fuel engine can be improved while the emission is reduced.
Description
Technical field
The present invention relates to a kind of gas injection apparatus, specifically gas fuel injection apparatus.
Background technology
Energy shortage at present and problem of environmental pollution have become as restriction China's economy and the bottleneck problem of social development.Real
Apply energy diversification strategy and develop the inexorable trend that fungible energy source application technology is future development.It is rich that natural gas has resource
The advantage such as richness and combustion cleaning is considered as the preferred option of petroleum replacing, and therefore natural gas engine technology becomes each and starts greatly
The technique direction that machine host factory first develops.Due to manifold multi-point injection technology, can to improve each cylinder fuel distributing uniformity gentle
The dynamic characteristic of body electromotor, is therefore applied to power station, automobile and ship gas engine field more and more widely.For
Natural gas injection and air inlet mixed process are controlled and optimize, the lower end of usual gas injector installs one additional gives vent to anger
Pipe, realize the control of gas injection direction and position, than more typically snifting valve structure (as patent 201420602402.4) all
With an escape pipe, but such structure there is also certain defect：After the valve land of gas injector, give vent to anger
Rapid pressure drop in pipe, the speed that natural gas flows out from escape pipe declines, and makes whole jet process long, so work as starting
After machine IC Intake Valve Closes, some natural gas remains in engine air inlet tube.Generally for guarantee engine breathing
It is more thorough that process is carried out, and inlet valve need to open certain angle in advance, and exhaust valve need to postpone cut out certain angle, therefore exists
The phenomenon that inlet valve is opened simultaneously.In next cycle of engine intake process, a upper circulation remains in air inlet pipe
Natural gas just directly swept in exhaustor without work by combustion, this does not only result in the waste of fuel, and makes hydrocarbon emission
Increase.The main component of natural gas is methane, and the greenhouse effect of methane is more than 20 times of carbon dioxide, therefore leads to more serious
Greenhouse effect problem.
Content of the invention
It is an object of the invention to provide it can be avoided that natural gas injection remains the waste of fuel leading to and hydrocarbon emission increases
Plus problem a kind of for the anti-gas nozzle making dynamic formula snifting valve.
The object of the present invention is achieved like this：
The present invention a kind of for the anti-gas nozzle making dynamic formula snifting valve, it is characterized in that：Including air jet pipe, ACV Air Cut Valve, spray
Trachea is hollow structure, and air jet pipe upper end is set to riffled tube, riffled tube straight with diameter greater than air jet pipe other parts
Footpath, air jet pipe is connected with the anti-housing making dynamic formula snifting valve above it by its riffled tube, and air jet pipe lower end is closing knot
Structure, jet tube side wall arranges fumarole, and ACV Air Cut Valve is arranged in air jet pipe, and described ACV Air Cut Valve includes the upper valve being sequentially connected
Bar, the axis of guide, lower valve rod, valve disc, upper valve rod is connected with the anti-valve element making dynamic formula snifting valve, and valve disc is piston cylinder operator, guiding
Coordinate for gap between axle and air jet pipe, the hollow structure of air jet pipe is divided into epicoele and cavity of resorption by the axis of guide, the axis of guide is arranged
Connection epicoele and the waist hole of cavity of resorption.
The present invention can also include：
1st, the thickness of valve disc is more than the diameter of fumarole；When counter make the energising of dynamic formula snifting valve after, the anti-dynamic formula snifting valve made
Valve element drive ACV Air Cut Valve move downward, valve disc leaves fumarole position, and fumarole is opened, gas through epicoele, waist hole, under
Chamber sprays from fumarole；When counter make dynamic formula snifting valve power-off after, ACV Air Cut Valve lifted, turn over and return to fumarole position, will spray
Pore is closed, and jet stops.
2nd, the upper valve rod of ACV Air Cut Valve is identical with lower valve shank diameter, and is less than the anti-gas outlet's caliber making dynamic formula snifting valve.
3rd, the angle between the centrage of fumarole and air jet pipe center line is 30-60 °.
Advantage of the invention is that：The present invention is capable of quickly cutting of natural gas jet direction and position control and gas
Disconnected, gas/dual fuel engine combustion process can be improved and reduce discharge.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 a is the schematic diagram of air jet pipe, and Fig. 2 b is the profile of air jet pipe, and Fig. 2 c is the top view of air jet pipe；
Fig. 3 a is the schematic diagram of ACV Air Cut Valve, and Fig. 3 b is A-A view, and Fig. 3 c is B direction view；
Fig. 4 descends gas nozzle installation diagram in off position for anti-dynamic formula snifting valve of making；
Fig. 5 makees dynamic formula snifting valve gas nozzle installation diagram in the on state for counter.
Specific embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
In conjunction with Fig. 1-5, the present invention includes air jet pipe 1 and ACV Air Cut Valve 2 two parts.Air jet pipe 1 passes through screw thread and makees dynamic formula with counter
Snifting valve 12 housing is connected, air jet pipe 1 and counter make to be sealed using O shape rubber seal 11 between dynamic formula snifting valve 12.
ACV Air Cut Valve 2 is arranged in air jet pipe 1, and the upper valve rod 6 of ACV Air Cut Valve 2 is connected with the anti-valve element making dynamic formula snifting valve 12.On air jet pipe 1
The diameter with diameter greater than coupled jet body of the corrugated tubing 3 at end, air jet pipe 1 endcapped, near air jet pipe 1 end
4-8 venthole 5 is machined with end wall surface, the angle between the centrage of each venthole 5 and air jet pipe 1 center line is 30-
60°.2 ACV Air Cut Valves include upper valve rod 6, the axis of guide 7, lower valve rod 8 and 9 four parts of valve disc, and the upper valve rod 6 of ACV Air Cut Valve 2 is made with anti-
The valve element of jet valve 12 is connected, and upper valve rod 6 lower end is connected with the axis of guide 7, and the axis of guide 7 lower end is connected with lower valve rod 8, and under
The end of valve rod 8 is valve disc 9, and valve disc 9 has piston cylinder operator, and the thickness of valve disc 9 is more than the diameter of fumarole 5；ACV Air Cut Valve 2
Valve rod 6 is identical with 8 diameter and caliber less than snifting valve 12 gas outlet, to guarantee that the anti-valve element making dynamic formula snifting valve 12 carries
After rising, the inner chamber of the anti-inner chamber and air jet pipe 1 making dynamic formula snifting valve 12 keeps UNICOM.After ACV Air Cut Valve 2 is installed in air jet pipe 1,
Form gap cooperation, air jet pipe 1 is divided into epicoele i and cavity of resorption ii by the axis of guide 7, on the axis of guide 7 between the axis of guide 7 and air jet pipe 1
It is machined with 4 waist holes 10, by the epicoele i in air jet pipe 1 and cavity of resorption ii chamber UNICOM.When the anti-solenoid making dynamic formula snifting valve 12
After energising, valve element drive ACV Air Cut Valve 2 move downward, air jet pipe 1 lower end venthole 5 is opened, gas through epicoele i, waist hole 10, under
Chamber ii and venthole 5 spray from air jet pipe；After the anti-solenoid power-off making dynamic formula snifting valve 12, ACV Air Cut Valve 2 is lifted rapidly,
Air jet pipe 1 lower end venthole 5 is closed, jet process stops at once, it is to avoid in air jet pipe 1, gaseous fuel remains in electromotor and enters
In trachea.Air jet pipe 1 and ACV Air Cut Valve 2 carry out manufacturing processing, to ensure the fit clearance of the axis of guide 7 and air jet pipe 1 and to die
Sealing between the valve disc 9 of valve 2 and air jet pipe 1.
Claims (5)
1. a kind of for the anti-gas nozzle making dynamic formula snifting valve, it is characterized in that：Including air jet pipe, ACV Air Cut Valve, during air jet pipe is
Hollow structure, air jet pipe upper end is set to riffled tube, the diameter with diameter greater than air jet pipe other parts of riffled tube, air jet pipe
It is connected with the anti-housing making dynamic formula snifting valve above it by its riffled tube, air jet pipe lower end is enclosed construction, air jet pipe
On the wall of side, fumarole is set, ACV Air Cut Valve is arranged in air jet pipe, upper valve rod that described ACV Air Cut Valve includes being sequentially connected, the axis of guide,
Lower valve rod, valve disc, upper valve rod is connected with the anti-valve element making dynamic formula snifting valve, and valve disc is piston cylinder operator, the axis of guide and air jet pipe
Between for gap cooperation, the hollow structure of air jet pipe is divided into epicoele and cavity of resorption by the axis of guide, on the axis of guide setting connection epicoele and
The waist hole of cavity of resorption.
2. according to claim 1 a kind of for the anti-gas nozzle making dynamic formula snifting valve, it is characterized in that：The thickness of valve disc
Diameter more than fumarole；When counter make the energising of dynamic formula snifting valve after, the anti-valve element making dynamic formula snifting valve drives ACV Air Cut Valve to transport downwards
Dynamic, valve disc leaves fumarole position, and fumarole is opened, and gas sprays from fumarole through epicoele, waist hole, cavity of resorption；When anti-
After making dynamic formula snifting valve power-off, ACV Air Cut Valve is lifted, and turns over and returns to fumarole position, fumarole is closed, and jet stops.
3. according to claim 1 and 2 a kind of for the anti-gas nozzle making dynamic formula snifting valve, it is characterized in that：ACV Air Cut Valve
Upper valve rod identical with lower valve shank diameter, and be less than the anti-gas outlet's caliber making dynamic formula snifting valve.
4. according to claim 1 and 2 a kind of for the anti-gas nozzle making dynamic formula snifting valve, it is characterized in that：Fumarole
Centrage and air jet pipe center line between angle be 30-60 °.
5. according to claim 3 a kind of for the anti-gas nozzle making dynamic formula snifting valve, it is characterized in that：In fumarole
Angle between heart line and air jet pipe center line is 30-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061006.5A CN106438148A (en) | 2016-11-28 | 2016-11-28 | Gas nozzle for anti-actuation gas ejection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061006.5A CN106438148A (en) | 2016-11-28 | 2016-11-28 | Gas nozzle for anti-actuation gas ejection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438148A true CN106438148A (en) | 2017-02-22 |
Family
ID=58219703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611061006.5A Pending CN106438148A (en) | 2016-11-28 | 2016-11-28 | Gas nozzle for anti-actuation gas ejection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438148A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145652A (en) * | 1995-02-15 | 1997-03-19 | 罗伯特·博施有限公司 | Fuel injection device for I.C engine |
| US5950930A (en) * | 1996-11-07 | 1999-09-14 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| US6109540A (en) * | 1998-10-29 | 2000-08-29 | Caterpillar Inc. | Outwardly opening nozzle valve for a fuel injector |
| US6224001B1 (en) * | 1998-05-29 | 2001-05-01 | Lucas Industries Public Limited Company | Fuel injector |
| CN1355870A (en) * | 1999-12-15 | 2002-06-26 | 罗伯特·博施有限公司 | Fuel injection valve |
| CN101558231A (en) * | 2006-12-15 | 2009-10-14 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | A fuel injector for an internal combustion engine |
| EP2899393A1 (en) * | 2014-01-22 | 2015-07-29 | Robert Bosch GmbH | Valve for measuring out fluid |
-
2016
- 2016-11-28 CN CN201611061006.5A patent/CN106438148A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145652A (en) * | 1995-02-15 | 1997-03-19 | 罗伯特·博施有限公司 | Fuel injection device for I.C engine |
| US5950930A (en) * | 1996-11-07 | 1999-09-14 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| US6224001B1 (en) * | 1998-05-29 | 2001-05-01 | Lucas Industries Public Limited Company | Fuel injector |
| US6109540A (en) * | 1998-10-29 | 2000-08-29 | Caterpillar Inc. | Outwardly opening nozzle valve for a fuel injector |
| CN1355870A (en) * | 1999-12-15 | 2002-06-26 | 罗伯特·博施有限公司 | Fuel injection valve |
| CN101558231A (en) * | 2006-12-15 | 2009-10-14 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | A fuel injector for an internal combustion engine |
| EP2899393A1 (en) * | 2014-01-22 | 2015-07-29 | Robert Bosch GmbH | Valve for measuring out fluid |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |