CN206655745U - A kind of engine piston, engine and automobile - Google Patents
A kind of engine piston, engine and automobile Download PDFInfo
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- CN206655745U CN206655745U CN201720448406.5U CN201720448406U CN206655745U CN 206655745 U CN206655745 U CN 206655745U CN 201720448406 U CN201720448406 U CN 201720448406U CN 206655745 U CN206655745 U CN 206655745U
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- valve
- engine
- inlet valve
- piston
- combustion recess
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Abstract
The utility model provides a kind of engine piston, engine and automobile, and the engine piston includes：Piston only, wherein formed with combustion recess at the center at the top of the piston only, an edge is formed around the combustion recess, wherein, two inlet valve valve pits and two exhaust valve valve pits are provided with the edge；Wherein, the combustion recess is provided with projection in the side away from the inlet valve valve pit, and the projection includes an arcwall face, and the arcwall face is towards the inlet valve valve pit.The utility model embodiment, by setting raised, raised arcwall face towards inlet valve valve pit in the side away from inlet valve valve pit in combustion recess, so that air-fuel mixture gas can be circled round after spraying into by convex barrier, form turbulent flow so that burning is more abundant, reduces oil consumption.
Description
Technical field
Technical field of automobile design is the utility model is related to, more particularly to a kind of engine piston, engine and automobile.
Background technology
In existing automotive engine combustion chamber structure, top land structure determines that engine fires to a certain extent
The shape of room is burnt, also determines the fired state of engine.The combustion chamber of prior art exist engine mixed gas body it is uneven,
The problems such as engine compresses are smaller, engine consumption is high.
Utility model content
The utility model embodiment technical problems to be solved are to provide a kind of engine piston, engine and automobile, use
It can be sufficiently mixed by raised fuel-air mixture body with realizing, and form turbulent flow, burning is abundant, so as to reduce oil consumption.
In order to solve the above technical problems, the utility model embodiment provides a kind of engine piston, including：
Piston only, wherein recessed formed with combustion recess, the combustion chamber at the center at the top of the piston only
An edge is formed around hole, wherein, two inlet valve valve pits and two exhaust valve valve pits are provided with the edge；
Wherein, the combustion recess is provided with projection, the raised bag in the side away from the inlet valve valve pit
Include an arcwall face, the arcwall face is towards the inlet valve valve pit.
Further, the raised height is more than the height at the edge.
Further, opening of the combustion recess at the top of the piston only includes the ellipticity portion being connected
Divide and triangle part；
The triangle part is arranged between two inlet valve valve pits, and the elliptical circular part is away from described
Inlet valve valve pit, the combustion recess form a drainage channel from the triangle part to the elliptical circular part.
Further, the bottom surface of the elliptical circular part of the combustion recess is formed as smooth planar structure, and described
The junction of bottom surface and the edge is in arc-shaped.
Further, the inlet valve valve pit and the exhaust valve valve pit are groove structure.
According to the utility model on the other hand, the utility model embodiment additionally provides a kind of engine, including cylinder body and
Cylinder cap, in addition to engine piston as described above.
Further, the engine also includes：
It is arranged on the cylinder cap, the spark plug positioned at the top of the engine piston；
The inlet valve being arranged on the cylinder cap；
The exhaust valve for being arranged on the cylinder cap, being oppositely arranged with the inlet valve；
The fuel injector being arranged on below the inlet valve, the arc of the jet of the fuel injector towards the combustion recess
Shape face.
According to the another aspect of the utility model, the utility model embodiment additionally provides a kind of automobile, including as described above
Engine.
Compared with prior art, a kind of engine piston, engine and the automobile that the utility model embodiment provides, at least
Have the advantages that：
The utility model embodiment, it is convex by setting projection in the side away from inlet valve valve pit in combustion recess
The arcwall face risen is towards inlet valve valve pit so that and air-fuel mixture gas can be circled round after spraying into by convex barrier, form turbulent flow,
So that burning is more abundant, oil consumption is reduced.
Brief description of the drawings
Fig. 1 is the partial structural diagram of the vertical view of the engine piston of the utility model embodiment；
Fig. 2 is the partial structural diagram of the section view of the engine of the utility model embodiment.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.In the following description, there is provided the specific detail of such as specific configuration and component is only
Only to assist in comprehensive understanding embodiment of the present utility model.Therefore, it will be apparent to those skilled in the art that can be to here
The embodiment of description is made various changes and modifications without departing from the scope of the utility model and spirit.In addition, in order to clear and
Succinctly, the description to known function and construction is eliminated.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is relevant with embodiment
Special characteristic, structure or characteristic are included at least one embodiment of the present utility model.Therefore, go out everywhere in entire disclosure
Existing " in one embodiment " or " in one embodiment " not necessarily refers to identical embodiment.In addition, these are specific special
Sign, structure or characteristic can combine in one or more embodiments in any suitable manner.
Referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of engine piston, including：
Piston only 1, wherein formed with combustion recess 2, the combustion chamber at the center at the top of the piston only 1
The surrounding of pit 2 forms an edge, wherein, two inlet valve valve pits 3 and two exhaust valve valve pits are provided with the edge
4；
Wherein, the combustion recess 2 is provided with projection 5, the projection in the side away from the inlet valve valve pit 3
Including an arcwall face, the arcwall face is towards the inlet valve valve pit 3.
In the engine piston of the utility model embodiment, by combustion recess 2 away from inlet valve valve pit 3
Side set raised, and raised arcwall face is towards inlet valve valve pit 3 so that air-fuel mixture gas can be convex after spraying into
Rise and stop convolution, form turbulent flow so that burning is more abundant, reduces oil consumption.
Further, in order to improve the blocking effect of projection, the turbulent flow that can be formed is strengthened, the raised height is more than
The height at the edge.
Referring to Fig. 1, further, opening of the combustion recess 2 at the top of the piston only 1 includes being connected
Elliptical circular part 21 and triangle part 22, the shape be formed as be in drops；
The triangle part 22 is arranged between two inlet valve valve pits 3, and the elliptical circular part 21 is remote
From the inlet valve valve pit 3, the combustion recess 2 is formed from the triangle part 22 to the elliptical circular part 21
One drainage channel.
In the engine piston of the utility model embodiment, combustion recess 2 is arranged to drops, and by triangle
Part forms drainage channel to elliptical circular part 21, is easy to mixed oil and gas to be directed into combustion recess 2 after entering.It is and above-mentioned
The setting of shape reduces combustion chamber volume, increasing compression ratio, can lift engine performance, reduces oil consumption.Wherein, such as Fig. 1
Shown, projection is arranged on side of the elliptical circular part 21 away from inlet valve valve pit 3.
Further, the bottom surface of the elliptical circular part 21 of the combustion recess 2 is formed as smooth planar structure, and institute
The junction for stating bottom surface and the edge is in arc-shaped.Junction is arranged to arc-shaped, is easy to mixed gas to form turbulent flow so that
Burning is more abundant.
Further, the inlet valve valve pit 3 and the exhaust valve valve pit 4 are groove structure.
Referring to Fig. 2, the utility model embodiment additionally provides a kind of engine according to the utility model on the other hand, wraps
Include cylinder body 6 and cylinder cap 7, in addition to engine piston as described above.
Further, the engine also includes：
It is arranged on the cylinder cap 7, the spark plug 8 positioned at the top of the engine piston；
The inlet valve 9 being arranged on the cylinder cap 7；
The exhaust valve 10 for being arranged on the cylinder cap 7, being oppositely arranged with the inlet valve 9；
The fuel injector 11 of the lower section of inlet valve 9 is arranged on, the jet of the fuel injector 11 is recessed towards the combustion chamber
The arcwall face in hole 2.
In the engine of the present embodiment, spark plug 8 is arranged on cylinder cap 7, positioned at combustion chamber top, fuel injector 11
In the lower section of inlet valve 9, and towards arcwall face so that fuel oil and air can be mixed effectively.
According to the another aspect of the utility model, the utility model embodiment additionally provides a kind of automobile, including as described above
Engine.
To sum up, the utility model embodiment, by being set in combustion recess 2 in the side away from the valve pit 3 of inlet valve 9
Projection, raised arcwall face is towards the valve pit 3 of inlet valve 9 so that and air-fuel mixture gas can be circled round after spraying into by convex barrier,
Form turbulent flow so that burning is more abundant, reduces oil consumption.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
Any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability includes.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (8)
- A kind of 1. engine piston, it is characterised in that including：Piston only, wherein formed with combustion recess, the combustion recess week at the center at the top of the piston only Enclose to form an edge, wherein, two inlet valve valve pits and two exhaust valve valve pits are provided with the edge；Wherein, the combustion recess is provided with projection in the side away from the inlet valve valve pit, described raised including one Arcwall face, the arcwall face is towards the inlet valve valve pit.
- 2. engine piston according to claim 1, it is characterised in that the raised height is more than the height at the edge Degree.
- 3. engine piston according to claim 1, it is characterised in thatOpening of the combustion recess at the top of the piston only includes the elliptical circular part and triangle being connected Part；The triangle part is arranged between two inlet valve valve pits, and the elliptical circular part is away from the air inlet Door valve pit, the combustion recess form a drainage channel from the triangle part to the elliptical circular part.
- 4. engine piston according to claim 3, it is characterised in that the bottom of the elliptical circular part of the combustion recess Face is formed as smooth planar structure, and the junction of the bottom surface and the edge is in arc-shaped.
- 5. engine piston according to claim 1, it is characterised in that the inlet valve valve pit is kept away with the exhaust valve Valve hole is groove structure.
- 6. a kind of engine, including cylinder body and cylinder cap, it is characterised in that also include the hair as described in any one of Claims 1 to 5 Motivation piston.
- 7. engine according to claim 6, it is characterised in that also include：It is arranged on the cylinder cap, the spark plug positioned at the top of the engine piston；The inlet valve being arranged on the cylinder cap；The exhaust valve for being arranged on the cylinder cap, being oppositely arranged with the inlet valve；The fuel injector being arranged on below the inlet valve, the arc of the jet of the fuel injector towards the combustion recess Face.
- 8. a kind of automobile, it is characterised in that including the engine as described in any one of claim 6~7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720448406.5U CN206655745U (en) | 2017-04-26 | 2017-04-26 | A kind of engine piston, engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720448406.5U CN206655745U (en) | 2017-04-26 | 2017-04-26 | A kind of engine piston, engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206655745U true CN206655745U (en) | 2017-11-21 |
Family
ID=60320204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720448406.5U Active CN206655745U (en) | 2017-04-26 | 2017-04-26 | A kind of engine piston, engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206655745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763891A (en) * | 2019-03-27 | 2019-05-17 | 江铃汽车股份有限公司 | A kind of Atkinson engine piston combustion chamber |
-
2017
- 2017-04-26 CN CN201720448406.5U patent/CN206655745U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763891A (en) * | 2019-03-27 | 2019-05-17 | 江铃汽车股份有限公司 | A kind of Atkinson engine piston combustion chamber |
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