CN208734452U - A kind of valve mechanism cover of engine - Google Patents
A kind of valve mechanism cover of engine Download PDFInfo
- Publication number
- CN208734452U CN208734452U CN201821458355.5U CN201821458355U CN208734452U CN 208734452 U CN208734452 U CN 208734452U CN 201821458355 U CN201821458355 U CN 201821458355U CN 208734452 U CN208734452 U CN 208734452U
- Authority
- CN
- China
- Prior art keywords
- cover
- valve mechanism
- oil
- engine
- mechanism cover
- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of valve mechanism cover of engine, it include cover and gas and oil separating plant, several fuel injector bore are provided on the cover, the cover side is provided with several and is equipped with bolt hole one for installing the oily rail mounting base of oily rail, the end face of the oil rail mounting base.Bolt hole one is used for fixing oil rail.The valve mechanism cover of engine provided by the utility model, the distance of oily rail to fuel injector is reduced, it is lower to the pressure loss of fuel injector to make oily rail, while ensure that fuel injector and oily rail do not have relative displacement, positioning accuracy is higher, has ensured the stability that oily rail is connected to fuel injector.
Description
Technical field
The utility model belongs to automotive engine applications more particularly to a kind of valve mechanism cover of engine.
Background technique
As China is automobile-used and non-road engines emission regulation demands are increasingly stringenter, oil of the regulation to engine
Consumption, the requirement of discharge are higher and higher, and engine is also more and more using corresponding discharge and oil consumption control device.From conventional diesel
Machine only needs the fuel pump of a mechanical structure that can meet basic work requirement, high pressure common rail fuel injection system till now,
Other than fuel pump, high pressure oil rail, high-pressure oil pipe, the components such as electric-controlled fuel injector are increased.Especially high-pressure common-rail fuel system
Arrangement, oily rail is shorter to the high-pressure oil pipe between fuel injector, and the pressure loss of oily rail to fuel injector is with regard to smaller.Fuel injector is usually
It is mounted in valve mechanism cover by fuel injector bore.But the structure of the valve mechanism cover of current engine makes oily rail and oil spout
The distance of device bore farther out, causes the pressure loss of oily rail and fuel injector larger.
Utility model content
In order to solve the above technical problems, being used for the utility model proposes a kind of valve mechanism cover of engine by setting
The oily rail mounting base for installing oily rail, high pressure oil rail is furthered at a distance from fuel injector bore, solves oily rail and fuel injector pressure
Lose larger problem.
In order to achieve the above object, the technical solution of the utility model is as follows: a kind of valve mechanism cover of engine includes
Cover and gas and oil separating plant are provided with several fuel injector bore on the cover, and the cover side is provided with several
For installing the oily rail mounting base of oily rail, the end face of the oil rail mounting base is equipped with bolt hole one.Bolt hole one is for fixing
Oily rail.The distance of oily rail to fuel injector is reduced to minimum distance by the valve mechanism cover of the engine.Simultaneously because fuel injector
It is mounted on the same components with oily rail, without relative displacement.
Preferably, the cover is internally provided with rocker arm chamber, the inward flange of the rocker arm chamber is equipped with reinforcing rib.Reinforce
Muscle has ensured the intensity at rocker arm chamber edge, provides enough support strengths for the oily rail mounting base on the outside of valve mechanism cover.
Preferably, distributed several bolts hole two on the side of the cover.Bolt hole two is for fixing cylinder head
Engine cylinder is covered to cover.
Preferably, the cover is equipped with machine oil filler port.
Preferably, the gas and oil separating plant includes that the intracorporal crankcase ventilation with cavity structure of cover is arranged in lead to
Road.
Preferably, scratching flowing plate equipped with what is be staggered installation of in the crankcase vent passage.The crankcase vent passage
Cavity and scratch flow structure and reduce the flow velocity of crankcase ventilation machine oil gas gaseous mixture, help to improve and filtered on engine
The machine oil mist of oil separative efficiency of the gs-oil separator of formula.
Preferably, the bottom of the crankcase vent passage is equipped with oil return hole.When valve mechanism cover is installed on the engine,
Since the crankcase vent passage is that cantilever design is suspended in above engine cylinder cover, the wall surface temperature in channel is relatively low,
Part machine oil mist of oil can be made to be condensed on wall surface, oil sump is flowed back to by oil return hole, reduces return engine air inlet circuit
Machine oil content, to reduce engine particulate emission.
The utility model has the beneficial effects that the valve mechanism cover of engine provided by the utility model, by oily rail to fuel injector
Distance reduce, it is lower to the pressure loss of fuel injector to make oily rail, while ensure that fuel injector and oily rail do not have relative displacement, calmly
Position precision is higher, has ensured the stability that oily rail is connected to fuel injector.Filtering type on engine is improved by gas and oil separating plant
Gs-oil separator machine oil mist of oil separative efficiency, while the valve mechanism cover installation on the engine when, crankcase passage is outstanding
Arm configuration is placed in above engine cylinder cover, and oil return hole flows back to oil sump, reduces the machine oil content in return engine air inlet circuit, drop
Low engine particulate emission.
Detailed description of the invention
Fig. 1 is the top view of the valve mechanism cover of the engine of the utility model；
Fig. 2 is the sectional view at the valve mechanism cover A of the engine of the utility model；
Fig. 3 is the sectional view at the valve mechanism cover B of the engine of the utility model；
Wherein: 1. covers, 2. fuel injector bore, 3. oily rail mounting bases, 4. machine oil filler ports, 5. bolts hole two, 6. crankshafts
Case vent passages, 7. oil return holes, 8. scratch flowing plate, 9. rocker arm chambers, 10. bolts hole one, 11. reinforcing ribs.
Specific embodiment
The utility model is described in further detail With reference to embodiment.
It include cover 1 and Oil-gas Separation dress as shown in Figure 1, present embodiments providing a kind of valve mechanism cover of engine
It sets, several fuel injector bore 2 is provided on cover 1.It distributed several bolts hole 25, bolt hole two on the side of cover 1
5 cover for fixing valve mechanism cover to engine cylinder.Cover 1 is equipped with machine oil filler port 4.
Gas and oil separating plant includes the crankcase vent passage 6 with cavity structure being arranged in cover 1.Crankcase ventilation
Flowing plate 8 is scratched equipped with what is be staggered installation of in channel 6.The bottom of crankcase vent passage 6 is equipped with oil return hole 7.Crankcase vent passage 6
Cavity and scratch flow structure and reduce the flow velocity of crankcase ventilation machine oil gas gaseous mixture, help to improve and filtered on engine
The machine oil mist of oil separative efficiency of the gs-oil separator of formula.When the valve mechanism cover is installed on the engine, since crankcase ventilation is logical
Road 6 is that cantilever design is suspended in above engine cylinder cover, and the wall surface temperature in channel is relatively low, and part machine oil mist of oil can be made to condense
On wall surface, oil sump is flowed back to by oil return hole 7, the machine oil content in return engine air inlet circuit is reduced, to reduce
Engine particulate emission.
In conjunction with Fig. 2, cover 1 is internally provided with rocker arm chamber 9, and the inward flange of rocker arm chamber 9 is equipped with reinforcing rib 11.Reinforcing rib is protected
Hinder the intensity at rocker arm chamber edge, provides enough support strengths for the oily rail mounting base 3 on the outside of valve mechanism cover.Rocker arm chamber 9
For covering the Valve Rocker Organization of engine cylinder tops installation, rocker arm body is isolated with exterior space, on the one hand prevents
Machine oil splashes outward, on the other hand ensures that rocker arm body working environment is not influenced by exterior space dust rainwater etc..
In conjunction with Fig. 3,1 side of cover is provided with several oily rail mounting bases 3 for being used to install oily rail, oily rail mounting base 3
End face is equipped with bolt hole 1.Bolt hole 1 is used for fixing oil rail.When oily rail and fuel injector are mounted in the valve mechanism cover
When, oily rail and fuel injector apart from very little, and the two does not have relative displacement, has ensured the stability that oily rail is connected to fuel injector.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure transformation made by the utility model description, it is applied directly or indirectly in other relevant technology necks
Domain is also included in the patent protection scope of the utility model.
Claims (7)
- Include cover (1) and gas and oil separating plant 1. a kind of valve mechanism cover of engine, the cover (1) if on be provided with Dry fuel injector bore (2), which is characterized in that cover (1) side is provided with several and pacifies for installing the oily rail of oily rail It fills seat (3), the end face of the oil rail mounting base (3) is equipped with bolt hole one (10).
- 2. the valve mechanism cover of engine according to claim 1, which is characterized in that the cover (1), which is internally provided with, shakes The inward flange of arm room (9), the rocker arm chamber (9) is equipped with reinforcing rib (11).
- 3. the valve mechanism cover of engine according to claim 1, which is characterized in that be distributed on the side of the cover (1) Several bolts hole two (5).
- 4. the valve mechanism cover of engine according to claim 1, which is characterized in that the cover (1) adds equipped with machine oil Orifice (4).
- 5. the valve mechanism cover of engine according to claim 1, which is characterized in that the gas and oil separating plant includes setting The crankcase vent passage (6) with cavity structure in cover (1).
- 6. the valve mechanism cover of engine according to claim 5, which is characterized in that in the crankcase vent passage (6) Flowing plate (8) are scratched equipped with what is be staggered installation of.
- 7. the valve mechanism cover of engine according to claim 5, which is characterized in that the crankcase vent passage (6) Bottom is equipped with oil return hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458355.5U CN208734452U (en) | 2018-09-06 | 2018-09-06 | A kind of valve mechanism cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458355.5U CN208734452U (en) | 2018-09-06 | 2018-09-06 | A kind of valve mechanism cover of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734452U true CN208734452U (en) | 2019-04-12 |
Family
ID=66032866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821458355.5U Expired - Fee Related CN208734452U (en) | 2018-09-06 | 2018-09-06 | A kind of valve mechanism cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208734452U (en) |
-
2018
- 2018-09-06 CN CN201821458355.5U patent/CN208734452U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20210906 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |