CN207715248U - A kind of engine piston - Google Patents
A kind of engine piston Download PDFInfo
- Publication number
- CN207715248U CN207715248U CN201721847383.1U CN201721847383U CN207715248U CN 207715248 U CN207715248 U CN 207715248U CN 201721847383 U CN201721847383 U CN 201721847383U CN 207715248 U CN207715248 U CN 207715248U
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- China
- Prior art keywords
- piston
- weight loss
- engine
- skirt
- loss groove
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of engine piston, belong to technical field of engines, engine piston, including connected piston crown and piston skirt, piston crown is provided with the face-port being connected with piston skirt, pin hole is provided on piston skirt, it is characterized in that, weight loss groove is provided on the face-port, loss of weight groove depth is 0.4~0.6 times of piston crown height, and reinforcing rib is provided in weight loss groove, the utility model has the beneficial effects that, the engine piston overall weight is light, structural strength is high, reduces abrasion and oil consumption, improves service life.
Description
Technical field
The utility model is related to technical field of engines more particularly to a kind of engine pistons.
Background technology
High speed development with domestic automobile industry and benign competition in the industry, consumer to the comfort of automobile, dynamic property,
Oil consumption, NVH requirements are higher and higher, these performances of vehicle are largely focused in the toggle of engine.
In the working cycles of engine, the movement velocity of piston is very fast, and speed is very uneven.In upper and lower stop
The speed of position, piston is zero, and a certain position and speed in upper and lower stop reaches highest.Since piston is done back and forth in cylinder
High-speed straight-line movement, it is inevitable that prodigious inertia force is generated on piston, piston pin and connecting rod, periodically shake to bring
It is dynamic.Eliminate vibration, mitigate the weight of piston, carry out lightweight, be solve by reciprocal inertia force bring vibration fundamental way it
One.
The piston of larger quality does high speed in cylinder holes and moves back and forth, and reciprocal inertia force and torque can not pass through the flat of bent axle
Weight is eliminated, and many main engine plants increase putting down for uniaxial (three cylinder machines) or twin shaft (four-cylinder) all in automobile engine at this stage
Weigh axle system, considerably increases the quality, volume and cost of engine in this way.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of engine piston, solves engine in work
The vibration abrasion problem that inertia force is brought greatly in work, it is therefore intended that, a kind of engine piston is designed, before meeting intensity requirement
It puts, mitigates the weight of piston, reduce the vibration of engine, improve service life.
To achieve the above object, technical solution adopted by the utility model to solve its technical problems is：The engine
Piston, including connected piston crown and piston skirt, piston crown are provided with the face-port being connected with piston skirt, piston skirt
On be provided with pin hole, which is characterized in that be provided with weight loss groove on the face-port, loss of weight groove depth is the 0.4 of piston crown height
~0.6 times, reinforcing rib is provided in weight loss groove.
Further, the reinforcing rib is set as being welded in weight loss groove and bending is connected to the reinforcing rib above weight loss groove
Item.
Further, the reinforcing rib of the piston crown side is at least provided with 2, and is separately positioned on the two of pin hole
Side.
Further, the weight loss groove includes the round and smooth connected conical surface and plane, and the plane intersects with piston skirt, institute
The central axis for stating the conical surface is overlapped with the central axis of piston crown.
Further, the both sides of the piston skirt are additionally provided with concave inward structure.
The utility model has the beneficial effects that：
It is the weight loss groove that piston crown depth is 0.4~0.6 times that depth is arranged on the engine piston, is set in weight loss groove
Reinforcing rib is set, piston lightweight is made on the basis of ensureing piston intensity, and concave inward structure is set in piston skirt both sides,
The weight for reducing piston reduces the vibration of engine, improves its service life.
To sum up, the engine piston overall weight is light, structural strength is high, reduces abrasion and oil consumption, improves use
Service life.
Description of the drawings
Below to each width attached drawing of the utility model specification expression content and figure in label be briefly described：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A-A schematic cross-sectional views of Fig. 1；
Fig. 3 is the structural schematic diagram of the front view of the utility model；
Label in above-mentioned figure is：1. piston crown, 11. face-ports, 2. piston skirts, 21. pin holes, 22. concave inward structures,
3. weight loss groove, 31. conical surfaces, 32. planes, 4. reinforcing ribs.
Specific implementation mode
Specific embodiment of the present utility model is made into one by the description to optimum embodiment below against attached drawing
Step detailed description.
The utility model specific embodiment is：As shown in Figure 1 and Figure 2, a kind of engine piston, including connected work
Plug head 1 and piston skirt 2, piston crown 1 are provided with the face-port 11 being connected with piston skirt 2, pin are provided on piston skirt 2
Hole 21 is provided with weight loss groove 3 on face-port 11, and 3 depth of weight loss groove is 0.4~0.6 times of 1 height of piston crown, is set in weight loss groove 3
It is equipped with reinforcing rib 4.
As shown in Figure 1, reinforcing rib 4 is set as being welded in weight loss groove 3 and bending is connected to the reinforcing rib of 3 top of weight loss groove
Item, such structure increase whole intensity；The reinforcing rib 4 of 1 side of piston crown is respectively set at least provided with 2
In the both sides of pin hole 21, the intensity of connecting pin installation site is improved, service life is improved；Weight loss groove 3 includes round and smooth connected
The conical surface 31 and plane 32 reduce stress concentration, and the plane 32 intersects with piston skirt 2, the central axis of the conical surface 31
It is overlapped with the central axis of piston crown 1.
As shown in figures 1 and 3, the both sides of piston skirt 2 are additionally provided with concave inward structure 22, further mitigate piston entirety
Weight, reduce vibration.
To sum up, the engine piston overall weight is light, structural strength is high, reduces abrasion and oil consumption, improves use
Service life.
The above, some principles of the utility model that only explains through diagrams, this specification are not intended to this practicality
It is novel to be confined in the shown concrete structure and the scope of application, thus it is every be possible to be utilized corresponding change and wait
Jljl belongs to the apllied the scope of the claims of the utility model.
Claims (5)
1. a kind of engine piston, including connected piston crown (1) and piston skirt (2), piston crown (1) is provided with and lives
Skirt section (2) connected face-port (11) is filled in, is provided with pin hole (21) on piston skirt (2), which is characterized in that on the face-port (11)
It is provided with weight loss groove (3), weight loss groove (3) depth is 0.4~0.6 times of piston crown (1) height, and weight loss groove is provided on (3)
Reinforcing rib (4).
2. engine piston according to claim 1, it is characterised in that：The reinforcing rib (4) is set as being welded on loss of weight
In slot (3) and bending is connected to the strengthening rib strip above weight loss groove (3).
3. engine piston according to claim 1 or 2, it is characterised in that：The reinforcing rib of piston crown (1) side
(4) at least provided with 2, and the both sides of pin hole (21) are separately positioned on.
4. engine piston according to claim 3, it is characterised in that：The weight loss groove (3) includes round and smooth connected cone
Face (31) and plane (32), the plane (32) are intersected with piston skirt (2), the central axis and piston head of the conical surface (31)
The central axis in portion (1) overlaps.
5. engine piston according to claim 1, it is characterised in that：The both sides of the piston skirt (2) are additionally provided with
Concave inward structure (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721847383.1U CN207715248U (en) | 2017-12-26 | 2017-12-26 | A kind of engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721847383.1U CN207715248U (en) | 2017-12-26 | 2017-12-26 | A kind of engine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207715248U true CN207715248U (en) | 2018-08-10 |
Family
ID=63050069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721847383.1U Active CN207715248U (en) | 2017-12-26 | 2017-12-26 | A kind of engine piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207715248U (en) |
-
2017
- 2017-12-26 CN CN201721847383.1U patent/CN207715248U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |