CN212250261U - Piston that radiating efficiency is high - Google Patents
Piston that radiating efficiency is high Download PDFInfo
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- CN212250261U CN212250261U CN202020976986.7U CN202020976986U CN212250261U CN 212250261 U CN212250261 U CN 212250261U CN 202020976986 U CN202020976986 U CN 202020976986U CN 212250261 U CN212250261 U CN 212250261U
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- piston
- steel cylinder
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- piston skirt
- groove
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Abstract
The utility model provides a piston that radiating efficiency is high, piston head establishes gas ring groove and oil ring groove, the piston skirt is equipped with piston pin seat hole, the cover has the steel cylinder on the piston skirt, steel cylinder top and piston skirt bolt fastening, and it has the hole to open on the steel cylinder, with piston pin seat hole correspondence on the piston skirt, establish the radiating groove on the steel cylinder, this piston overlaps the steel cylinder in order to improve intensity and hardness on the piston skirt, compare the all-steel piston, this piston cost performance is high, and because of steel cylinder intensity and hardness are high, consequently, open the radiating groove on the steel cylinder, improve the thermal diffusivity and can not cause the influence by a wide margin to steel cylinder structural stability simultaneously.
Description
Technical Field
The utility model relates to a piston device technical field especially relates to a piston that radiating efficiency is high.
Background
The piston is one of the key vulnerable parts which directly affect the performance and service life of the internal combustion engine, and the main function of the piston is to bear the combustion pressure in the cylinder and transmit the force to the crankshaft through the piston-crank mechanism so as to obtain the output torque. The traditional piston is generally made of aluminum, but the strength and hardness are slightly lower, compared with the steel piston appearing on the market, the hardness and strength are high, but the defects of high cost and poor heat dissipation are existed, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a piston with high heat dissipation efficiency to solve the above problems.
The technical scheme of the utility model is that:
a piston with high heat dissipation efficiency is characterized in that a gas ring groove and an oil ring groove are formed in the head of the piston, a piston skirt is provided with a piston pin seat hole, a steel cylinder is sleeved on the piston skirt, the top of the steel cylinder is fixed with the piston skirt through a bolt, a hole is formed in the steel cylinder and corresponds to the piston pin seat hole in the piston skirt, and a heat dissipation groove is formed in the steel cylinder.
This piston is in order to improve intensity and hardness at the piston skirt upper cover steel cylinder, compares all steel piston, and this piston cost performance is high, and because of steel cylinder intensity and hardness are high, consequently opens the radiating groove on the steel cylinder, improves the thermal diffusivity and can not cause by a wide margin the influence to steel cylinder structural stability simultaneously.
Furthermore, the piston is of a two-stage step type, the outer diameter of the head of the piston is larger than that of the piston skirt, and a plurality of bolts are arranged on the peripheral wall of the head of the steel cylinder to fix the steel cylinder and the piston skirt.
The piston skirt part is a cylinder, and bolt holes are formed in the peripheral wall of the top of the piston skirt part, so that bolts can be conveniently screwed in, and the structural stability is improved.
Further, the piston head is provided with two gas ring grooves and one oil ring groove from top to bottom in sequence.
Furthermore, three heat dissipation grooves are sequentially arranged on the steel cylinder from top to bottom, the heat dissipation grooves are trapezoidal, two of the heat dissipation grooves are located on two sides of the hole, and one of the heat dissipation grooves is located below the hole.
Adopt three radiating grooves in this scheme, the radiating effect is good, keeps steel cylinder stable in structure simultaneously, and the trapezoidal groove increases heat radiating area.
Furthermore, the bottom wall of the heat dissipation groove is provided with heat dissipation holes, and the heat dissipation holes directly extend to the inner fixing groove of the piston skirt, namely, the holes in the peripheral wall of the piston skirt correspond to the heat dissipation holes in the bottom wall of the heat dissipation groove, so that the heat dissipation effect is improved.
Drawings
FIG. 1: the structure of the utility model in the embodiment 1;
FIG. 2: FIG. 1 is a sectional view of the structure;
in the figure: 1. a piston head; 2. a piston skirt; 3. an aperture; 4. a steel cylinder; 5. a gas ring groove; 6. an oil ring groove; 7. a heat sink; 8. heat dissipation holes; 9. fixing grooves; 10. a piston pin boss bore; 11. and (4) bolts.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
Example 1
Referring to fig. 1, the present embodiment provides a piston with high heat dissipation efficiency, a piston head 1 and a piston skirt 2 are integrally formed, the piston head is made of aluminum, two gas ring grooves 5 and one oil ring groove 6 are sequentially formed in the piston head from top to bottom, and a piston pin seat hole 10 is formed in the piston skirt.
In this embodiment, three radiating grooves 7 are established in proper order from top to bottom on the steel cylinder, and the radiating grooves are the trapezoidal form, and wherein two radiating grooves are located the both sides of hole, and one is located the below in hole, and the notch is wide 13mm, and the tank bottom is wide 8mm, and the radiating groove diapire is opened there is the louvre, opens 16 high louvres, aperture 3mm, and louvre 8 directly extends to piston skirt internal fixation groove 9, and trompil and radiating hole on the radiating groove diapire correspond on the piston skirt perisporium promptly.
Adopt three radiating grooves in this scheme, the radiating effect is good, keeps steel cylinder stable in structure simultaneously, and the dovetail groove increases heat radiating area, and pin boss hole, bolt hole and the louvre of piston skirt portion perisporium division do not have other unnecessary structures outward, improve structural stability.
The advantages are that: this piston overlaps a steel cylinder on the piston skirt, compares all-steel piston, and this piston cost reduction compares aluminium system piston, and this piston intensity and hardness are high to open a plurality of radiating grooves on the steel cylinder, the radiating efficiency is high.
Of course, the above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (5)
1. The piston is characterized in that a steel cylinder is sleeved on the piston skirt, the top of the steel cylinder is fixed with the piston skirt through a bolt, a hole is formed in the steel cylinder and corresponds to the piston pin seat hole in the piston skirt, and a heat dissipation groove is formed in the steel cylinder.
2. The piston as claimed in claim 1, wherein the piston has a two-step shape, the outer diameter of the piston head is larger than the outer diameter of the piston skirt, and the circumferential wall of the steel cylinder head is provided with a plurality of bolts for fixing the steel cylinder and the piston skirt.
3. The piston as claimed in claim 1, wherein the piston head has two gas ring grooves and one oil ring groove from top to bottom.
4. The piston as claimed in claim 1, wherein three heat dissipating grooves are formed on the steel cylinder in sequence from top to bottom, the heat dissipating grooves are trapezoidal, two of the heat dissipating grooves are formed on both sides of the hole, and one of the heat dissipating grooves is formed below the hole.
5. The piston as claimed in claim 4, wherein the bottom wall of the heat dissipating groove is formed with heat dissipating holes, and the heat dissipating holes are directly extended to the fixing groove of the piston skirt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020976986.7U CN212250261U (en) | 2020-06-01 | 2020-06-01 | Piston that radiating efficiency is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020976986.7U CN212250261U (en) | 2020-06-01 | 2020-06-01 | Piston that radiating efficiency is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250261U true CN212250261U (en) | 2020-12-29 |
Family
ID=73978275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020976986.7U Active CN212250261U (en) | 2020-06-01 | 2020-06-01 | Piston that radiating efficiency is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250261U (en) |
-
2020
- 2020-06-01 CN CN202020976986.7U patent/CN212250261U/en active Active
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