CN204327307U - For the lightweight noise-reducing piston of petrol engine - Google Patents
For the lightweight noise-reducing piston of petrol engine Download PDFInfo
- Publication number
- CN204327307U CN204327307U CN201420698346.9U CN201420698346U CN204327307U CN 204327307 U CN204327307 U CN 204327307U CN 201420698346 U CN201420698346 U CN 201420698346U CN 204327307 U CN204327307 U CN 204327307U
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- piston
- petrol engine
- face
- skirt
- pin
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Abstract
The utility model discloses a kind of lightweight noise-reducing piston for petrol engine, comprise piston only, described piston only be provided be integrated with it piston skirt, ring zone, piston pin boss, the outer key seat of piston face-port and piston, ring back of the body cavity is provided with at piston face-port position, the main thrust side skirt wall of described piston skirt is thicker than time thrust sides skirt wall on thickness, and major thrust side window wall will be equal to or greater than time thrust sides face-port wall on width; Described piston pin boss and pin-and-hole are to the distance of main thrust side offset control.
Description
Technical field
The utility model provides a kind of piston for petrol engine, particularly a kind of lightweight noise-reducing piston for petrol engine.
Background technique
The piston of gasoline engine of conventional construction comprises the structures such as piston top, piston skirt, Huan Qu, pin-and-hole, key seat.Present petrol engine is all at the future development to high power, high detonation pressure, and along with the raising of engine performance, emission request is also more and more tighter.Under this overall situation, the lightweight of piston just seems particularly important, but the piston of conventional construction can not meet light-weighted demand.
Model utility content
Technical problem to be solved in the utility model, is to provide a kind of piston for petrol engine, and this piston can meet light-weighted demand, improves the structural strength of piston simultaneously, improves the performance of motor.
The technical solution adopted in the utility model is as follows:
A kind of lightweight noise-reducing piston for petrol engine, piston only is provided with the outer key seat with the piston skirt of its one, ring zone, piston pin boss, piston face-port and piston, ring back of the body cavity is provided with at piston face-port position, the main thrust side skirt wall of described piston skirt is thicker than time thrust sides skirt wall on thickness, and major thrust side window wall will be equal to or greater than time thrust sides face-port wall on width; Described piston pin boss and pin-and-hole are to the distance of main thrust side offset control.
Described setpoint distance is 0.4mm-1mm.
The outer key seat position of piston at place of piston face-port ring district adopts ring back of the body cavity reinforcing rib structure, and ring back of the body cavity will be reinforced muscle and be divided into three independently regions.
Described stiffening rib adopts the mode flushed with edge under ring zone, or stiffening rib is to piston top indentation setting height; If face-port Chu Huan district position intensity is enough, this stiffening rib can be cancelled, the ring back of the body cavity 5a, 5b, 5c integrator.
Described face-port wall construction is straight line type or arc.
Be positioned at the piston skirt of more than pin-and-hole horizontal center line, its end face is straight line, and the minimum angle of end face and pin aperture centerline is 10 °-45 °.
Described ring zone adopts piston only alloy material in first ring groove location, or adopts cast iron ring carrier to carry out intensity reinforcement.
Enough large in order to ensure ring back of the body cavity, form the angle of 15 °-40 ° between the internal surface of two face-port walls.
Described piston, its material is aluminum alloy or other light alloy.
The beneficial effects of the utility model are as follows:
Piston skirt is completely the same in the upper outside sight of periphery with time thrust sides in main thrust side, for the consideration of lightweight and structural strength, secondary thrust sides skirt wall thickness is less than main thrust side skirt wall thickness, so namely, meet the needs of structural strength, again reduce piston weight simultaneously, achieve the light-weighted object of piston; The design of face-port wall is also for same consideration.
Be designed with ring back of the body cavity at piston face-port position, adopt the piston of this structure, compare with conventional piston, weight can reduce 10%-15%, greatly reduce piston weight.
In order to reduce engine running noise, improve travelling comfort, piston pin boss and pin-and-hole adopt the design of putting certain distance t to main thrust lateral deviation, t value scope 0.4mm-1mm.
Ring back of the body cavity is designed with at piston face-port position, in order to ensure that piston is enough in this position intensity, reinforcing rib structure is designed with in the ring back of the body cavity of piston outer key seat position, stiffening rib adopts the mode flushed with edge under ring district, or stiffening rib is to piston top indentation setting height, if face-port Chu Huan district position intensity is enough, this stiffening rib can be cancelled, the ring back of the body cavity 5a, 5b, 5c integrator.
Enough large in order to ensure ring back of the body cavity, when face-port wall, face-port wall has an inside angle [alpha], and the span of α is 15 °-40 °.If face-port wall angle [alpha] is larger, upper end, piston skirt will be caused to become narrow, in order to ensure that there is an enough surface of contact piston skirt, can adopt during the design of skirt section and design an angle beta above pin-and-hole, this angular range is generally 20 °-90 °.
When plunger designs, first ring groove location can adopt piston only material, if when the parameters such as detonation pressure, power per liter, compression ratio are enough large, can consider to adopt cast iron ring carrier structure to strengthen first ring groove location.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of the utility model structure;
Fig. 2 is the worm's eye view of Fig. 1;
Fig. 3 is the sectional view of Fig. 1;
Fig. 4 is M-M sectional view in Fig. 1 view;
Fig. 5 is the left view of Fig. 1;
In figure: 1 piston top, 2 piston skirts, 3 piston pin bosses, 4a, 4b face-port wall, 5a, 5b, 5c ring back of the body cavity, 6 ring back of the body cavity stiffening ribs, 7 main thrust side skirt walls, 8 thrust sides skirt walls, 9 ring districts, 10 pin aperture centerline, 11 piston centreline.
Embodiment
Accompanying drawing 1-5 discloses concrete scheme of the present utility model, and this piston is applicable to four-stroke gasoline engine.This piston is the structures such as piston top 1, ring district 9, piston skirt 2, piston pin boss 3 with comparatively traditional patten's design.
In order to reduce piston weight, realize the light-weight design of piston, this design proposal lightweight aspect is taken measures as follows:
1. at face-port position design ring back of the body cavity;
2. time thrust sides skirt wall 8 thickness is less than main thrust side skirt wall 7;
3. time thrust sides face-port wall 4a width is equal to or less than major thrust side window wall 4b.
The offset design scheme of key seat and pin-and-hole and the alternative of first ring groove location design disclosed in Fig. 1.
In order to reduce the running noise of motor, piston pin boss 3 and pin-and-hole to main thrust side offset or dish t, t value scope 0.4mm-1mm; Namely the distance between pin aperture centerline 10 and piston centreline 11 is t; In order to ensure the structural strength at first piston ring groove position, when plunger designs, first ring groove location can adopt piston only material, if when the parameters such as detonation pressure, power per liter, compression ratio are enough large, can consider to adopt cast iron ring carrier structure to strengthen first ring groove location.
Reinforcing rib structure disclosed in Fig. 3,
Enough in order to ensure piston ring back of the body cavity position intensity, stiffening rib 6 structure is designed with in the ring back of the body cavity of piston outer key seat position, stiffening rib 6 can adopt the mode flushed with edge under ring district, or stiffening rib is to piston top indentation certain altitude h, if face-port Chu Huan district position intensity is enough, this stiffening rib can be cancelled, the ring back of the body cavity 5a, 5b, 5c integrator.
Enough large in order to ensure ring back of the body cavity, when face-port wall, face-port wall has an inside angle [alpha], and the span of α is 15 °-40 °.If face-port wall angle [alpha] is larger, upper end, piston skirt will be caused to become narrow, in order to ensure that there is an enough surface of contact piston skirt, can adopt during the design of skirt section and design an angle beta above pin-and-hole, this angular range is generally 20 °-90 °.
Angle [alpha] disclosed in Fig. 4 is the angle between the face-port wall of both sides, and the design of this angle is that during design, this angle degree is generally 15 °-40 ° now in order to obtain larger space when designing ring back of the body cavity.
Angle beta disclosed in Fig. 5 is in order to ensure that skirt section has enough large area of contact to design.
When designing ring back of the body cavity, if angle [alpha] is enough large, it is narrow that skirt upper end will become, area of contact diminishes, in order to ensure that there are enough area of contact in skirt section, straight line is arranged in the upper-end surface in skirt section, and two straight lines adopt the design of a β angle, the starting point of this angle is positioned at the above region of pin aperture centerline, and angular range is generally 20 °-90 °.
In the utility model, piston material adopt be Bohai Piston Co., Ltd., Bingzhou City, Shandong Prov. development series aluminium alloy material and other light alloy material.
Accompanying drawing of the present utility model illustrate only a kind of case study on implementation, and concrete shape, structure, size when not departing from the utility model spirit and scope, can make change and adjustment.
Claims (8)
1. the lightweight noise-reducing piston for petrol engine, comprise piston only, described piston only be provided be integrated with it piston skirt, ring zone, piston pin boss, the outer key seat of piston face-port and piston, it is characterized in that: be provided with ring back of the body cavity at piston face-port position, the main thrust side skirt wall of described piston skirt is thicker than time thrust sides skirt wall on thickness, and major thrust side window wall will be equal to or greater than time thrust sides face-port wall on width; Described piston pin boss and pin-and-hole are to the distance of main thrust side offset control.
2. as claimed in claim 1 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, described piston pin boss and pin-and-hole are to the distance of main thrust side offset control, and described distance is 0.4mm-1mm.
3. as claimed in claim 1 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, be provided with stiffening rib at the outer key seat position of piston, described ring back of the body cavity will be reinforced muscle and be divided into three independently regions.
4. as claimed in claim 3 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, described stiffening rib adopts the mode flushed with edge under ring zone, or the height that stiffening rib sets to piston top indentation.
5., as claimed in claim 1 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, described piston face-port wall construction is straight line type or arc.
6., as claimed in claim 1 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, be positioned at the piston skirt of more than pin-and-hole horizontal center line, the minimum angle of its end face and pin aperture centerline is 10 °-45 °.
7. as claimed in claim 1 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, described ring zone adopts piston only alloy material in first ring groove location, or adopts cast iron ring carrier to carry out intensity reinforcement.
8., as claimed in claim 1 for the lightweight noise-reducing piston of petrol engine, it is characterized in that, described piston, its material is aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698346.9U CN204327307U (en) | 2014-11-19 | 2014-11-19 | For the lightweight noise-reducing piston of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698346.9U CN204327307U (en) | 2014-11-19 | 2014-11-19 | For the lightweight noise-reducing piston of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327307U true CN204327307U (en) | 2015-05-13 |
Family
ID=53163676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698346.9U Expired - Fee Related CN204327307U (en) | 2014-11-19 | 2014-11-19 | For the lightweight noise-reducing piston of petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327307U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405517A (en) * | 2014-11-19 | 2015-03-11 | 山东滨州渤海活塞股份有限公司 | Lightweight noise-reducing piston for gasoline engine |
| WO2017025608A1 (en) * | 2015-08-11 | 2017-02-16 | Ks Kolbenschmidt Gmbh | Piston for an internal combustion engine |
| WO2020260466A1 (en) * | 2019-06-26 | 2020-12-30 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine |
-
2014
- 2014-11-19 CN CN201420698346.9U patent/CN204327307U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405517A (en) * | 2014-11-19 | 2015-03-11 | 山东滨州渤海活塞股份有限公司 | Lightweight noise-reducing piston for gasoline engine |
| WO2017025608A1 (en) * | 2015-08-11 | 2017-02-16 | Ks Kolbenschmidt Gmbh | Piston for an internal combustion engine |
| US10823109B2 (en) | 2015-08-11 | 2020-11-03 | Ks Kolbenschmidt Gmbh | Piston for an internal combustion engine |
| WO2020260466A1 (en) * | 2019-06-26 | 2020-12-30 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20171119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |