CN207660729U - A kind of fuel gas injection mechanism - Google Patents
A kind of fuel gas injection mechanism Download PDFInfo
- Publication number
- CN207660729U CN207660729U CN201721740406.9U CN201721740406U CN207660729U CN 207660729 U CN207660729 U CN 207660729U CN 201721740406 U CN201721740406 U CN 201721740406U CN 207660729 U CN207660729 U CN 207660729U
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- CN
- China
- Prior art keywords
- valve
- fuel gas
- gas injection
- engine
- governor
- 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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Classifications
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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
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model discloses a kind of fuel gas injection mechanisms, including gas header pipe, fuel gas injection conduit, air valve mounting base, valve train is equipped in air valve mounting base, valve train acts on fuel gas injection conduit, and valve train is connected to the intake rocker of engine, and butterfly valve is equipped in gas header pipe, butterfly valve is connected with the more bars of transmission, governor and manual lever are installed on the engine, the one end for being driven more bars is connect with butterfly valve, and the other end is connect with governor or manual lever.The utility model advantage is：By valve train, fuel gas injection timing is accurately controlled, valve train is driven by the intake rocker rocker arm body of engine, can ensure that combustion gas can only be sprayed during engine induction stroke in this way；Fuel gas injection valve can be controlled by manual operation mode, ensure that engine remains to normal operation under governor failure mode；Since the mechanism is a complete mechanical control mechanism, cost is relatively low, reliable operation.
Description
Technical field
The utility model is related to gas engine supply technology fields, and in particular to a kind of fuel gas injection mechanism.
Background technology
When due to gas machine as ship main auxiliary machine, it is necessary to consider Redundancy Design, all electronic control components
It has been required for redundancy, has met Redundancy Design as fuel gas injection valve must have.All it is electric controlled injection valve, such as U.S. currently on the market
SOGAV valves of Wood company etc., can not manually operation and control, it is therefore desirable to the backup of control system is carried out, if ship
An only main propelling gas machine, design will be very complicated, and design cost is very high, it is difficult to meet the requirement of classification society.And
And these electrically-controlled valve higher prices, service life are generally 20000 hours.
A kind of gas engine supply air line interlocking is disclosed in the Chinese patent document of Publication No. CN103807054A
Valve system increases hand-operated valve on the basis of solenoid valve, in the case of electromagnetism defective valve, can be controlled and be supplied by hand-operated valve
Air pipe.But simply by solenoid valve and hand-operated valve, can not be guaranteed in control accuracy, manual and electric adjustable
Conversion between section mode is cumbersome；In addition, can not ensure certain section of moment injection that combustion gas can only be in the intake stroke, cause
The loss of fuel gas and the low defect of air inlet rate.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of fuel gas injection mechanism, the fuel gas injection mechanism solutions
Conventional gas engine of having determined supplies adjustment process complexity, be easy to cause the loss of fuel gas and the defect that air inlet rate is low.
Technical problem to be solved in the utility model is realized using following technical scheme：
A kind of fuel gas injection mechanism, including engine, and the gas header pipe and fuel gas injection installed on the engine are led
Pipe, the fuel gas injection conduit is connected to the cylinder of engine, further includes air valve mounting base, and the fuel gas injection conduit passes through gas
Valve housing, and valve train is equipped in air valve mounting base, the valve train acts on fuel gas injection conduit, and the gas
Valve system is connected to the intake rocker of engine, and butterfly valve is equipped in the gas header pipe, and the butterfly valve is connected with the more bars of transmission,
Governor and manual lever are installed, one end of the more bars of transmission is connect with butterfly valve, the other end and governor on engine
Or manual lever connection.
Further improvement lies in that the valve train includes valve seat, and the spring being connect with valve seat, and connect with spring
The valve connect.
Further improvement lies in that the more bars of transmission are equipped with bolt, for injecting governor or manual lever.
Further improvement lies in that the governor is connected with gear driven mechanism.
The utility model has the beneficial effects that：By valve train, fuel gas injection timing is accurately controlled, valve train is by sending out
The intake rocker rocker arm body of motivation drives, and can ensure that combustion gas can only be sprayed during engine induction stroke in this way
It penetrates；Furthermore it is possible under governor failure mode, fuel gas injection valve is controlled by manual operation mode, to ensure engine still
It can normal operation；Since the mechanism is a complete mechanical control mechanism, cost is relatively low, reliable operation, it is normal for use
Service life can reach more than ten years or even decades.
Description of the drawings
Fig. 1 is the three-dimensional structure diagram of the utility model；
Fig. 2 is the plane structure chart of the utility model；
Fig. 3 is the principles of the present invention figure；
Wherein, 1- gas header pipes, 2- fuel gas injection conduits, 3- cylinders, 4- air valve mounting bases, 5- valve trains, 6- air inlets
Rocking arm, 7- butterfly valves, 8- are driven more bars, 9- governors, 10- manual levers, 11- bolts, 12- gear driven mechanisms.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
In conjunction with shown in Fig. 1 to Fig. 3, a kind of fuel gas injection mechanism, including engine (not shown), and mounted on hair
Gas header pipe 1 in motivation and fuel gas injection conduit 2, fuel gas injection conduit 2 are connected to the cylinder 3 of engine.Combustion gas is from combustion gas
Manifold 1 enters, and is then imported in cylinder from fuel gas injection conduit 2 and air mixes.Further include air valve mounting base 4, fuel gas injection
Conduit 2 passes through air valve mounting base 4, and valve train 5 is equipped in air valve mounting base 4, and valve train 5 acts on fuel gas injection and leads
Pipe 2 is mounted on fuel gas injection conduit 2, can control and close and open.And valve train 5 is connected to the air inlet of engine and shakes
Arm 6, gas header pipe 1 is interior to be equipped with butterfly valve 7, and butterfly valve 7 is connected with the more bars 8 of transmission, is equipped with governor 9 on the engine and grasps manually
Make bar 10, the one end for being driven more bars 8 is connect with butterfly valve 7, and the other end is connect with governor 9 or manual lever 10.
Particularly, valve train 5 includes valve seat, and the spring being connect with valve seat, and the valve being connect with spring.It passes
Dynamic more bars 8 are equipped with bolt 11, for injecting governor 9 or manual lever 10.Governor 9 is connected with gear driven mechanism
12.It is the more transmission bodies of rod and connector composition to be driven more bars 8.
In use, by valve train, to accurately control fuel gas injection timing, and valve train is shaken by the air inlet of engine
Arm drives, and can ensure that combustion gas can only be sprayed during engine induction stroke in this way.
Butterfly valve is may be implemented by the variation of butterfly valve opening different under each load for controlling fuel gas injection amount
Gas demand.And governor is under each load of engine, to pass through calculating for driving butterfly valve and controlling butterfly valve opening
The rating test of emulation and engine load, can calibrate the aperture of butterfly valve under each load.
Governor is installed on the engine, identical as diesel engine, is worked by gear mechanism drive speed adjustor；Pass through transmission again
More bars drive butterfly valve rotation, to control fuel gas injection amount, to control the rotating speed of engine.Manual lever is again by biography
More bars are moved to drive butterfly valve to rotate, under normal condition, for bolt on governor drive, manual-operating mechanism is invalid；Only
When governor fails, the bolt on governor driving multi-bar linkage can be just extracted, is inserted on manual-operating mechanism, to
Manual-operating mechanism control engine can be used to run.
The gas quantity of gas header pipe is controlled by butterfly valve, into air inlet valve mounting base, and by valve train control timing into
Enter in cylinder.Valve train is by engine charge rocking arm (driving intake valve) while driving, to control fuel gas injection timing,
Ensure that combustion gas can only certain section of moment injection in the intake stroke.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is by the exemplary limitation of above-mentioned implementation, only saying described in above-mentioned implementation example and specification
Bright the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model also have various
Changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model is protected
Range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of fuel gas injection mechanism, including engine, and the gas header pipe (1) and fuel gas injection installed on the engine are led
It manages (2), the fuel gas injection conduit (2) is connected to the cylinder (3) of engine, it is characterised in that：It further include air valve mounting base
(4), the fuel gas injection conduit (2) passes through air valve mounting base (4), and valve train (5) is equipped in air valve mounting base (4),
The valve train (5) acts on fuel gas injection conduit (2), and the valve train (5) is connected to the intake rocker of engine
(6), butterfly valve (7) is equipped in the gas header pipe (1), the butterfly valve (7) is connected with the more bars (8) of transmission, installs on the engine
There are governor (9) and manual lever (10), one end of the more bars (8) of transmission to be connect with butterfly valve (7), the other end and governor
(9) or manual lever (10) connects.
2. a kind of fuel gas injection mechanism according to claim 1, it is characterised in that：The valve train (5) includes valve seat,
And the spring being connect with valve seat, and the valve that is connect with spring.
3. a kind of fuel gas injection mechanism according to claim 1, it is characterised in that：The more bars (8) of transmission, which are equipped with, inserts
It sells (11), for injecting governor (9) or manual lever (10).
4. a kind of fuel gas injection mechanism according to claim 1, it is characterised in that：The governor (9) is connected with gear
Driving mechanism (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740406.9U CN207660729U (en) | 2017-12-13 | 2017-12-13 | A kind of fuel gas injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740406.9U CN207660729U (en) | 2017-12-13 | 2017-12-13 | A kind of fuel gas injection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207660729U true CN207660729U (en) | 2018-07-27 |
Family
ID=62942528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721740406.9U Expired - Fee Related CN207660729U (en) | 2017-12-13 | 2017-12-13 | A kind of fuel gas injection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207660729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882657A (en) * | 2017-12-13 | 2018-04-06 | 安徽建筑大学 | A kind of fuel gas injection mechanism |
-
2017
- 2017-12-13 CN CN201721740406.9U patent/CN207660729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882657A (en) * | 2017-12-13 | 2018-04-06 | 安徽建筑大学 | A kind of fuel gas injection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20211213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |