CN203347935U - Aviation piston engine - Google Patents
Aviation piston engine Download PDFInfo
- Publication number
- CN203347935U CN203347935U CN 201320427551 CN201320427551U CN203347935U CN 203347935 U CN203347935 U CN 203347935U CN 201320427551 CN201320427551 CN 201320427551 CN 201320427551 U CN201320427551 U CN 201320427551U CN 203347935 U CN203347935 U CN 203347935U
- Authority
- CN
- China
- Prior art keywords
- piston
- aviation
- spiral groove
- cylinder
- connecting rod
- 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 - Lifetime
Links
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides an aviation piston engine, which substantially comprises an air cylinder, a piston, a connecting rod, a crankshaft and a cartridge receiver, wherein the piston in the air cylinder is connected with the crankshaft through the connecting rod. The aviation piston engine is characterized in that the head of the piston is a convex surface, is better in structural stiffness compared with a plane, and is high in compression ratio. A spiral groove is arranged on the cylindrical side surface of the piston, the depth of the spiral groove is 0.01-0.015mm, the pitch of the spiral groove is 0.2mm, and the spiral groove can store lubricating oil, form liquid friction on a matching position, and reduces tolerance clearance and prevents cylinder scoring. A ring slot of the piston is of a trapezoid, and can improve carbon deposition resistance of a piston ring. The aviation piston engine improves stability and abrasion resistance, and reduces vibration and noise.
Description
Technical field
The utility model relates to reciprocating engine, especially relevant with a kind of structure of aviation piston type engine.
Background technique
Existing aviation piston type engine, its piston head mostly is plane structure, and the piston cylinder mostly is smooth surface, and piston ring groove mostly is rectangle.The problems such as this structure exists the piston cylinder prepareding gap undesirable, and the piston ring carbon accumulation resisting ability is poor, not only affected the wear resistance of piston, also at the assembly quality that has affected whole motor, has potential safety hazard, therefore need to be improved.
Summary of the invention
The purpose of this utility model is: provide a kind of aviation piston type engine, to make up above-mentioned the deficiencies in the prior art.
In order to realize the purpose of this utility model, intend adopting following technology:
A kind of aviation piston type engine, its main structure comprises: cylinder, piston, connecting rod, bent axle, casing etc., and wherein the piston in cylinder is connected with bent axle by connecting rod, and it is characterized in that: the head of described piston is convex surface, the cylindrical side of piston has spiral chute, and the annular groove of piston is trapezoidal.
The described spiral fluted degree of depth is 0.01 ~ 0.015mm, and pitch is 0.2mm.
Described cylinder is made by Ni-based silicon carbide.
Adopt technique scheme, it is a little:
1, the head design of piston is convex surface, and better than plane structure rigidity, compression ratio is high;
2, the cylindrical side of piston design spiral chute, can store lubricant oil, forms liquid friction in cooperation place, dwindles matching gap, prevents scuffing of cylinder bore, improved stability and the wear resistance of motor, reduced vibration and noise.
3, annular groove is designed to trapezoidally, with existing rectangle, compares, and can improve the carbon accumulation resisting ability of piston ring.
4, cylinder adopts Ni-based carbofrax material, and itself and alloy matrix aluminum have good associativity, and friction factor is little, compares tool with chrome-plated process and has an enormous advantage, and has further improved reliability and the working life of motor.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is trapezoidal annular groove structural representation of the present utility model.
Embodiment
As shown in Fig. 1 ~ Fig. 2, a kind of aviation piston type engine, its main structure comprises: cylinder (1), piston (2), connecting rod (3), bent axle (4), casing (5) etc., wherein the piston (2) in cylinder (1) is connected with bent axle (4) by connecting rod (3), piston (2) at cylinder (1) thus in move up and down and be with dynamic crankshaft (4) to carry out circular movement.The head (6) of described piston (2) is designed to convex surface, and the cylindrical side of piston (2) is designed with spiral chute (7), and the annular groove (8) of piston (2) is trapezoidal for design.
The head (6) of described piston (2) is convex surface, and the plane head construction with respect to traditional, can obtain higher compression ratio, improves the intensity of piston head.
Described spiral chute (7), its depth design is 0.01 ~ 0.015mm, pitch design is 0.2mm, be used for storing lubricant oil, form liquid friction in cooperation place, thereby dwindle matching gap, prevent scuffing of cylinder bore, improved stability and the wear resistance of motor, reduced vibration and noise.
Described trapezoidal annular groove (8) and keystone-type piston ring matching gap, along with piston is done teeter and changes under the side pressure effect, extrude the carbon distribution in annular groove (8), thereby improved the carbon accumulation resisting ability of motor.
Described cylinder (1), adopt Ni-based silicon carbide preparation, have good associativity with alloy matrix aluminum, and friction factor is little, compares tool with chrome-plated process and have an enormous advantage, and further improved reliability and the working life of motor.
By the utility model, the aviation piston type engine structure is improved, not only improved the wear resistance of motor, also cylinder prepareding gap is reduced, and reduced vibration and the noise of motor in operation process, thus reliability and the working life of having improved motor.The utility model is rational in infrastructure simple, is easy to realize, is applicable to very much being applied to the aviation piston type engine of various models.
Claims (3)
1. an aviation piston type engine, its main structure comprises: cylinder (1), piston (2), connecting rod (3), bent axle (4), casing (5) etc., wherein the piston (2) in cylinder (1) is connected with bent axle (4) by connecting rod (3), it is characterized in that: the head (6) of described piston (2) is convex surface, the cylindrical side of piston (2) has spiral chute (7), and the annular groove (8) of piston (2) is trapezoidal.
2. aviation piston type engine according to claim 1, the degree of depth that it is characterized in that described spiral chute (7) is 0.01 ~ 0.015mm, pitch is 0.2mm.
3. aviation piston type engine according to claim 1, is characterized in that described cylinder (1) made by Ni-based silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320427551 CN203347935U (en) | 2013-11-06 | 2013-11-06 | Aviation piston engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320427551 CN203347935U (en) | 2013-11-06 | 2013-11-06 | Aviation piston engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347935U true CN203347935U (en) | 2013-12-18 |
Family
ID=49747845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320427551 Expired - Lifetime CN203347935U (en) | 2013-11-06 | 2013-11-06 | Aviation piston engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956594A (en) * | 2017-10-31 | 2018-04-24 | 贵阳吉利发动机有限公司 | A kind of engine structure |
-
2013
- 2013-11-06 CN CN 201320427551 patent/CN203347935U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956594A (en) * | 2017-10-31 | 2018-04-24 | 贵阳吉利发动机有限公司 | A kind of engine structure |
| CN107956594B (en) * | 2017-10-31 | 2019-06-25 | 贵州吉利发动机有限公司 | A kind of engine structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |