CN206035668U - Dual -fuel engine valve mechanism cover - Google Patents
Dual -fuel engine valve mechanism cover Download PDFInfo
- Publication number
- CN206035668U CN206035668U CN201621073298.XU CN201621073298U CN206035668U CN 206035668 U CN206035668 U CN 206035668U CN 201621073298 U CN201621073298 U CN 201621073298U CN 206035668 U CN206035668 U CN 206035668U
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- CN
- China
- Prior art keywords
- cover
- lower cover
- valve mechanism
- interface structure
- engine valve
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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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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model belongs to the technical field of the engine, especially, relate to a dual -fuel engine valve mechanism cover, including installation upper shield together and cover down, the upper shield be one end seal one end open -ended cover form, down the cover be the tube -shape, the open end of first nozzle end and the upper shield of cover borders on down, is equipped with the gasket between the two, be equipped with gas fuel passag interface structure, fuel oil channel interface structure and through wires hole on the lateral wall of cover under, be equipped with the air track mounting groove on the lower cover lateral wall between gas fuel passag interface structure and fuel oil channel interface structure. Set up the connection that valve mechanism cover go up to realize two fuel supply system with two fuel supply system and arrange, provide new two fuel supply system's connection arrangement form, can improve two fuel supply system's life moreover, be two parts, be convenient for later stage dismouting, maintenance with the valve mechanism cover design.
Description
Technical field
The utility model belongs to technical field of engines, more particularly to a kind of dual fuel engine valve mechanism cover.
Background technology
With the continuous development of diesel oil-natural gas double fuel engine technology, various fuel supplies and spraying system scheme
Constantly by it has been proposed that and proved, for diesel oil-natural gas double fuel engine, at present more advanced and ripe skill
Art scheme surely belongs to cylinder inner high voltage direct-injection.Cylinder inner high voltage direct injection diesel-natural gas double fuel engine technology needs directly to spray
The dual channel fuel injector that high-pressure diesel can directly spray high-pressure natural gas again is penetrated, two combustions are just had so on oil injector body
Material channel interface be connected with fuel feed line, the weak point for existing be occupancy installing space it is larger, be not easy to blast tube,
The installation and later maintenance of fuel gallery.
Utility model content
The purpose of this utility model is to provide a kind of dual fuel engine valve mechanism cover, and dual fuel supply system is arranged
The connection arrangement of dual fuel supply system is realized in valve mechanism cover, there is provided a kind of connection cloth of new dual fuel supply system
Put mode, and the service life of dual fuel supply system can be improved, valve mechanism cover is designed as into two parts, is easy to the later stage to tear open
Dress, maintenance.
The utility model is achieved in that a kind of dual fuel engine valve mechanism cover, the dual fuel engine cylinder
Housing includes the upper cover being installed together and lower cover, and it is in cylinder that the upper cover closes hood-like, the described lower cover of one end open in one end
Shape, the first nozzle end of the lower cover are adjacent with the openend of the upper cover, are provided with pad therebetween；In the lower cover
Lateral wall is provided with blast tube interface structure, fuel gallery interface structure and through wires hole, ties in the blast tube interface
Lower cover lateral wall between structure and the fuel gallery interface structure is provided with gas rail mounting groove.
Used as a kind of improvement, the blast tube interface structure, the fuel gallery interface structure include cover plate respectively,
The cover plate is provided with cover plate through hole, corresponding on the side wall of the lower cover to be provided with lateral through aperture, in the cover plate through-hole side
Bolt is provided between the plate body part in portion and the side wall of the lower cover.
As further improvement, storage tank is provided with the lateral through aperture near the end of lower cover lateral wall.
Used as further improvement, the cover plate is arranged in storage tank, sets between the cover plate and the storage tank
There is O-ring.
As a kind of improvement, between first side at the first nozzle end of the lower cover and the second nozzle end of the lower cover
Second side and second nozzle end of the lower cover the distance between of the distance more than the first nozzle end of the lower cover, described first
First side at nozzle end is oppositely arranged with second side at the first nozzle end, and the end face at the first nozzle end is oblique.
As further improvement, the blast tube interface structure, the fuel gallery interface structure, gas rail peace
Tankage is arranged on the lower cover on the side of first side at the first nozzle end.
Used as further improvement, the blast tube interface structure is arranged near the upper cover, and the fuel gallery connects
Mouth structure is arranged away from the upper cover, is arranged in vertical type, and the gas rail mounting groove is horizontal to be arranged between the two.
Used as a kind of improvement, the upper cover is bolted together by multiple with the lower cover, in the lower cover
The second nozzle end on be provided at circumferentially spaced multiple bolts along which.
As a kind of improvement, EVB installation portions are provided with the madial wall of the lower cover, the EVB installation portions include arranging
Protuberance on lower cover madial wall, is provided with an installing hole on the protuberance.
As a result of above-mentioned technical proposal, the dual fuel engine valve mechanism cover that the utility model is provided includes being arranged on
Upper cover together and lower cover, upper cover in one end close one end open hood-like, lower cover be cylindrical in shape, the first nozzle end of lower cover with it is upper
The openend of cover adjoins, and is provided with pad therebetween；It is provided with blast tube interface structure, fuel oil on the lateral wall of lower cover to lead to
Pipeline joint structure and through wires hole, set on the lower cover lateral wall between blast tube interface structure and fuel gallery interface structure
There is gas rail mounting groove.There is provided a kind of connection arrangement of new dual fuel supply system, by blast tube interface structure, combustion
On the one hand lower cover can be played a supportive role on the lateral wall of lower cover by oily channel interface structure setting as support, the opposing party
Face can reduce Gas Pipe through blast tube interface structure, through the vibration of fuel pipe etc. of fuel gallery interface structure
Level, improves both service life；In the gas rail mounting groove that gas rail is installed on the lateral wall of lower cover, on the one hand can contract
The length losed heart between rail and blast tube interface structure, can reduce delayed injection, reduce injection pressure fluctuation, on the other hand
Installing space can also be saved；Valve mechanism cover is divided into upper cover, lower cover two parts, blast tube interface structure, fuel gallery interface
Structure, gas rail mounting groove and EVB installation portions are all disposed within lower cover, can be easily by upper cover from lower cover during Maintenance and Repair
On remove, and do not affect other parts, Maintenance and Repair are very convenient.
Description of the drawings
Fig. 1 is the main structure diagram of dual fuel engine valve mechanism cover of the present utility model；
Fig. 2 is the cross section structure diagram of the line A-A along Fig. 1；
Fig. 3 is the left view structural representation of dual fuel engine valve mechanism cover of the present utility model；
Fig. 4 is the cross section structure diagram of the line B-B along Fig. 1；
Wherein, 10, upper cover, 20, lower cover, 21, bolt, 22, gas rail mounting groove, 23, through wires hole, 30, pad, 40, bolt,
50th, blast tube interface structure, 51, cover plate, 52, bolt, 60, fuel gallery interface structure, 61, cover plate, 62, bolt, 70, O
Type circle, 80, EVB installation portions.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
From Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the upper cover 10 that the dual fuel engine valve mechanism cover includes being installed together with
Lower cover 20, specifically, upper cover 10 is linked together by multiple bolts 40 with lower cover 20, and upper cover 10 is in one end closing one
Hood-like, the lower cover 20 of end opening is cylindrical in shape, and the first nozzle end of lower cover 20 is adjoined with the openend of upper cover 10, is set therebetween
There is pad 30, multiple bolts 21 have been provided at circumferentially spaced along which on the second nozzle end of lower cover 20, for by whole cylinder head
Cover is fixed together with cylinder body, is provided with EVB installation portions 80 on the madial wall of lower cover 20, particularly, EVB installation portions 80
Including the protuberance being arranged on the madial wall of lower cover 20, an installing hole is provided with protuberance；In the lateral wall of lower cover 20
Blast tube interface structure 50, fuel gallery interface structure 60 and through wires hole 23 is provided with, in blast tube interface structure 50
Gas rail mounting groove 22 is provided with the lateral wall of the lower cover 20 between fuel gallery interface structure 60.
During use, valve mechanism cover is buckled in cylinder head, and the dual fuel engine valve mechanism cover of the present embodiment provides a kind of new
Dual fuel supply system connection arrangement, in the present embodiment, by blast tube interface structure 50, fuel gallery interface
Structure 60 is arranged on the lateral wall of lower cover 20, and EVB installation portions 80 are arranged on the madial wall of lower cover 20, on the one hand can be by
Lower cover 20 plays a supportive role as support, on the other hand can reduce the Gas Pipe through blast tube interface structure 50, pass through
The vibration class of the fuel pipe of fuel gallery interface structure 60, it is possible to increase both service life；Gas rail is installed to into lower cover
In gas rail mounting groove 22 on 20 lateral wall, on the one hand can shorten the length between gas rail and blast tube interface structure 50
Degree, can reduce delayed injection reduces injection pressure fluctuation, on the other hand can also save installing space；Valve mechanism cover is divided into
Cover 10,20 two parts of lower cover, blast tube interface structure 50, fuel gallery interface structure 60, gas rail mounting groove 22, and EVB
Installation portion 80 is all disposed within lower cover 20, easily can remove upper cover 10 from lower cover 20, and do not affect during Maintenance and Repair
Other parts, Maintenance and Repair are very convenient.
In the present embodiment, blast tube interface structure 50 includes cover plate 51, is provided with cover plate through hole, under on cover plate 51
It is also corresponding on the side wall of cover 20 to be provided with lateral through aperture, set between the plate body part of cover plate through hole sidepiece and the side wall of lower cover 20
There is bolt 52；Fuel gallery interface structure 60 includes cover plate 61, is provided with cover plate through hole on cover plate 61, on the side wall of lower cover 20
Also it is corresponding to be provided with lateral through aperture, bolt 62 is provided between the plate body part of cover plate through hole sidepiece and the side wall of lower cover 20；Enter
One step, for the ease of installing, storage tank is provided with lateral through aperture near the end of the lateral wall of lower cover 20, thus can be with
Easily cover plate 51, cover plate 61 are installed in storage tank；Between cover plate 51 and corresponding storage tank, cover plate 61 with it is corresponding
O-ring 70 is respectively equipped between storage tank, can strengthen sealing property.
In the present embodiment, the distance between first side at the first nozzle end of lower cover 20 and the second nozzle end are more than first
The distance between second side at nozzle end and second nozzle end, the second side phase at first side at the first nozzle end and the first nozzle end
To arranging, the end face at whole first nozzle end is oblique；Blast tube interface structure 50, fuel gallery interface structure 60, gas
Rail mounting groove 22 is arranged on the side of first side at first nozzle end of the correspondence of lower cover 20, increases erection space, can be further
Save installing space.
Specifically, blast tube interface structure 50 is arranged near upper cover 10, and fuel gallery interface structure 60 is away from upper cover
10 are arranged, and both are arranged above and below, and gas rail mounting groove 22 is horizontal to be arranged between the two.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit the utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of dual fuel engine valve mechanism cover, it is characterised in that the dual fuel engine valve mechanism cover includes being arranged on
Upper cover together and lower cover, the upper cover are closed hood-like, the described lower cover of one end open and are cylindrical in shape in one end, and the of the lower cover
One nozzle end is adjoined with the openend of the upper cover, is provided with pad therebetween；Combustion is provided with the lateral wall of the lower cover
Gas channel interface structure, fuel gallery interface structure and through wires hole are logical with the fuel oil in the blast tube interface structure
Lower cover lateral wall between pipeline joint structure is provided with gas rail mounting groove.
2. dual fuel engine valve mechanism cover according to claim 1, it is characterised in that the blast tube interface knot
Structure, the fuel gallery interface structure include cover plate respectively, are provided with cover plate through hole, in the side wall of the lower cover on the cover plate
It is above corresponding to be provided with lateral through aperture, spiral shell is provided between the plate body part of the cover plate through hole sidepiece and the side wall of the lower cover
Bolt.
3. dual fuel engine valve mechanism cover according to claim 2, it is characterised in that in the lateral through aperture under
The end of cover lateral wall is provided with storage tank.
4. dual fuel engine valve mechanism cover according to claim 3, it is characterised in that the cover plate is arranged on storage tank
It is interior, O-ring is provided between the cover plate and the storage tank.
5. the dual fuel engine valve mechanism cover according to any one of Claims 1-4, it is characterised in that the lower cover
The distance between first side at the first nozzle end and second nozzle end of the lower cover are more than the first nozzle end of the lower cover
The distance between second side and second nozzle end of the lower cover, first side at the first nozzle end and the first nozzle end
The second side be oppositely arranged, the end face at the first nozzle end is oblique.
6. dual fuel engine valve mechanism cover according to claim 5, it is characterised in that the blast tube interface knot
Structure, the fuel gallery interface structure, the gas rail mounting groove are arranged on the lower cover adjacent to the first of the first nozzle end
On the side of side.
7. dual fuel engine valve mechanism cover according to claim 6, it is characterised in that the blast tube interface structure
Arrange near the upper cover, the fuel gallery interface structure is arranged away from the upper cover, arrange in vertical type, the gas rail peace
Tankage is horizontal to be arranged between the two.
8. dual fuel engine valve mechanism cover according to claim 1, it is characterised in that the upper cover with the lower cover is
Be bolted together by multiple, multiple bolts have been provided at circumferentially spaced along which on the second nozzle end of the lower cover.
9. dual fuel engine valve mechanism cover according to claim 1, it is characterised in that on the madial wall of the lower cover
EVB installation portions are provided with, the EVB installation portions include the protuberance being arranged on lower cover madial wall, are provided with the protuberance
One installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073298.XU CN206035668U (en) | 2016-09-22 | 2016-09-22 | Dual -fuel engine valve mechanism cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073298.XU CN206035668U (en) | 2016-09-22 | 2016-09-22 | Dual -fuel engine valve mechanism cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206035668U true CN206035668U (en) | 2017-03-22 |
Family
ID=58296679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621073298.XU Active CN206035668U (en) | 2016-09-22 | 2016-09-22 | Dual -fuel engine valve mechanism cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206035668U (en) |
-
2016
- 2016-09-22 CN CN201621073298.XU patent/CN206035668U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |