CN207686859U - A kind of fuel-economizing and durable piston - Google Patents
A kind of fuel-economizing and durable piston Download PDFInfo
- Publication number
- CN207686859U CN207686859U CN201721885746.0U CN201721885746U CN207686859U CN 207686859 U CN207686859 U CN 207686859U CN 201721885746 U CN201721885746 U CN 201721885746U CN 207686859 U CN207686859 U CN 207686859U
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- China
- Prior art keywords
- piston
- annular groove
- oil
- oriented
- piston skirt
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of fuel-economizing and durable piston, piston crown have compression and oil ring groove, piston skirt to have piston pin bore, piston skirt lower part to be provided with guiding annular groove, are oriented on annular groove and are equipped with guide ring, piston skirt top is provided with oil outlet, and piston skirt lower part is provided with oil return hole.It is oriented to annular groove to be located on the secant of oil return hole, oil return hole, which is located to be oriented to above annular groove, is partially larger than the part being located at below guide chute.The line in the oil outlet center of circle and the oil return hole center of circle is parallel to the axis of piston.The utility model is oriented to annular groove there are one being set in the lower part of piston skirt, it is oriented to and is equipped with the guide ring that overall diameter is equal to compression ring overall diameter on annular groove, so that the compression ring of piston crown and the guide ring of piston skirt lower part can be with cylinder contacts, play guiding role, efficiently avoid swing of the conventional piston skirt lower part with cylinder gap caused by excessive in cylinder by a small margin, it improves piston lubrication oil film and forms effect, greatly reduce the frictional force between piston and cylinder.
Description
Technical field
The utility model is related to internal combustion engine/diesel engine/automotive field, specifically a kind of fuel-economizing and durable piston.
Background technology
Piston is the key that directly affect one of engine performance and service life fragile part, and main function is to hold
Combustion pressure in by cylinder, and this power is transmitted to bent axle by piston-crank mechanism, to obtain output torque.Traditional work
Plug head is equipped with two or three compression oil ring grooves with together with, and oil leak hole is equipped in oil ring groove, and piston skirt is equipped with piston boss
Hole, for connecting piston with connecting rod, in long axis perpendicular to the ellipse of piston pin, the periphery of piston pin bore does not have piston skirt section
It is fluted.
Traditional piston structure can have swing by a small margin in cylinder, and due to the needs of piston skirt intensity, piston skirt
Upper only a small amount of oil-through-hole and oil leak hole, piston cannot get enough lubricating oil, and piston lubrication oil film formation effect is poor, lubrication
Performance and cooling effect are poor.The gap of the guiding junction of piston and cylinder wall is too small, and the two junction cannot be enough
Oil lubrication, piston is larger to the frictional resistance of cylinder wall, and the reciprocating motion of piston is blocked, and output work is reduced
Rate, and the abrasion of piston and cylinder body is made to aggravate, cause fuel of internal combustion engine consumption larger, piston service life is short.
Application No. is 201520890147.2 utility model patents to disclose a kind of IC engine for saving oil piston, relative to biography
The piston of system it is characterized in that：The upper and lower part of piston skirt is respectively equipped with balance annular groove, and it is big to be equipped with diameter on balance annular groove
In the balance ring of piston skirt, the upper and lower part of piston skirt have close to balance ring be not balanced ring block completely it is logical
Oilhole；Piston skirt bottom inside is equipped with a circle reinforcing ring.It is found after actual production, although the oil consumption of the internal combustion engine of above-mentioned patent
Rate is decreased obviously, but due to being provided with a large amount of oil-through-hole on piston skirt, is caused the intensity of piston skirt to be decreased obviously, influenced piston
Service life.
Utility model content
The utility model in view of the deficiencies of the prior art, provides a kind of fuel-economizing and durable piston.
To achieve the goals above, the utility model uses following technical scheme：
A kind of fuel-economizing and durable piston, piston crown have compression and oil ring groove, piston skirt to have piston pin bore, piston
Skirt lower part is provided with guiding annular groove, is oriented on annular groove and is equipped with guide ring,
Piston skirt top is provided with oil outlet, and piston skirt lower part is provided with oil return hole.
Further, it is oriented to annular groove to be located on the secant of oil return hole, oil return hole, which is located at, is oriented to being partially larger than above annular groove
Part below guide chute.
Further, the line in the oil outlet center of circle and the oil return hole center of circle is parallel to the axis of piston.
Further, the piston skirt offers the oil return hole of 2-8 a diameter of 8~12mm.
Further, the piston skirt offers the oil outlet of 2-8 a diameter of 3~5mm.
Further, guide ring outer diameter is identical as compression ring outer diameter.
Further, a plurality of reinforcing rib is buried inside top land end face.
Compared with prior art, the advantageous effect that the utility model has：
The utility model is set in the lower part of piston skirt there are one annular groove is oriented to, and is oriented on annular groove and is equipped with overall diameter equal to gas
The guide ring of ring overall diameter so that the compression ring of piston crown and the guide ring of piston skirt lower part can play and lead with cylinder contact
To effect, swing of the conventional piston skirt lower part with cylinder gap caused by excessive in cylinder by a small margin is efficiently avoided, is carried
It has risen piston lubrication oil film and has formed effect, greatly reduced the frictional force between piston and cylinder.
Piston skirt is slotted, and skirt section is enabled to have certain elasticity, fit clearance when effectively reducing cold conditions, when hot
There is certain deformability, the tension cylinder ability of piston can be promoted.
It is provided with 2-8 on guiding annular groove and is not directed to the oil return hole that ring blocks completely, relative to original piston, this practicality is new
The piston of type has subtracted many unnecessary oil-through-holes, increases the intensity of piston skirt.
Relative to conventional piston, the piston of the utility model increases 2-8 oil-through-hole so that lubricating oil supply fully,
It is evenly distributed, to the heat that Decentralized Friction generates, promotes piston lubrication effect, therefore piston subtracts the frictional resistance of cylinder wall
It is small, output power is improved, and the abrasion of piston and cylinder body is made to reduce, fuel consumption reduces, and effectively improves piston
Service life；Bury a plurality of reinforcing rib inside top land end face and on the inside of skirt section has under conditions of not increasing piston wall thickness
The intensity for improving to effect piston, has saved material utilization amount, mitigates quality, reduces the inertia force of piston.
Description of the drawings
Fig. 1 is the overall structure diagram of fuel-economizing described in the utility model and durable piston.
Structural schematic diagram when Fig. 2 is fuel-economizing described in the utility model and durable piston assembles guide ring.
Fig. 3 is the vertical view of fuel-economizing described in the utility model and durable piston.
Specific implementation mode
The technical solution of the utility model is further elaborated below by embodiment.
Embodiment 1
A kind of fuel-economizing and durable piston, piston crown have compression 1 and oil ring groove 2, piston skirt 7 to have piston pin bore 6,
7 lower part of piston skirt, which is provided with, is oriented to annular groove 4, is oriented on annular groove 4 and is equipped with guide ring 8,7 top of piston skirt is provided with fuel-displaced
Hole 3,7 lower part of piston skirt are provided with oil return hole 5.Oil outlet 3 and oil ring groove 2 are non-intersecting.
Further, it is oriented to annular groove to be located on the secant of oil return hole, oil return hole is located at the part being oriented to above annular groove and (leans on
The part of nearly oil ring groove) it is more than the part (part far from oil ring groove) being located at below guide chute.Oil return hole is circle, is oriented to
Sliding slot is the secant of circle.
Further, the line in 3 center of circle of oil outlet and 5 center of circle of oil return hole is parallel to the axis of piston.
Further, the piston skirt offers the oil return hole 5 of 2-8 a diameter of 8~12mm.
Further, the piston skirt offers the oil outlet 3 of 2-8 a diameter of 3~5mm.
Further, guide ring outer diameter is identical as compression ring outer diameter.
Further, a plurality of reinforcing rib 10 is buried inside top land end face.Piston is the column that one end open is closed in one end
Body, blind end are top, and a plurality of reinforcing rib is buried inside the end face of piston blind end.Reinforcing rib is embedded in casting, casting
It is closed in inside after the completion of making, is located at end core layer, does not observe from the appearance.
Embodiment 2
It entrusts Guangxi Zhuang Autonomous Region car combustion engine quality monitoring stations on behalf of experiment, first LAQ type gasoline engines is carried out total
Then power test carries out general power contrast test again after LAQ type gasoline engines change the outfit the fuel-economizing piston that the utility model designs,
Test result is：Fuel-economizing piston is relative to original machine piston, and in 2000-3500r/min speed stages, fuel consumption rate averagely declines
3.83%.
Specific test data is as shown in the table.
Claims (7)
1. a kind of fuel-economizing and durable piston, piston crown has compression (1) and oil ring groove (2), piston skirt (7) to have piston boss
Hole (6), which is characterized in that
Piston skirt (7) lower part, which is provided with, is oriented to annular groove (4), is oriented on annular groove (4) and is equipped with guide ring (8), piston skirt (7) top is opened
There are oil outlet (3), piston skirt (7) lower part to be provided with oil return hole (5).
2. fuel-economizing as described in claim 1 and durable piston, which is characterized in that the guiding annular groove is located at cutting for oil return hole
On line, oil return hole, which is located to be oriented to above annular groove, is partially larger than the part being located at below guide chute.
3. fuel-economizing as described in claim 1 and durable piston, which is characterized in that oil outlet (3) center of circle and oil return hole
(5) line in the center of circle is parallel to the axis of piston.
4. fuel-economizing as described in claim 1 and durable piston, which is characterized in that the piston skirt offers 2-8 diameter
For the oil return hole (5) of 8~12mm.
5. fuel-economizing as described in claim 1 and durable piston, which is characterized in that the piston skirt offers 2-8 diameter
For the oil outlet (3) of 3~5mm.
6. fuel-economizing as described in claim 1 and durable piston, which is characterized in that guide ring outer diameter is identical as compression ring outer diameter.
7. fuel-economizing as described in claim 1 and durable piston, which is characterized in that bury a plurality of add inside top land end face
Strengthening tendons (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721885746.0U CN207686859U (en) | 2017-12-28 | 2017-12-28 | A kind of fuel-economizing and durable piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721885746.0U CN207686859U (en) | 2017-12-28 | 2017-12-28 | A kind of fuel-economizing and durable piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686859U true CN207686859U (en) | 2018-08-03 |
Family
ID=62993125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721885746.0U Expired - Fee Related CN207686859U (en) | 2017-12-28 | 2017-12-28 | A kind of fuel-economizing and durable piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979889A (en) * | 2018-08-15 | 2018-12-11 | 浙江东新动力有限公司 | Wear-resisting lubricated type engine piston |
| CN109296471A (en) * | 2018-09-10 | 2019-02-01 | 天津酝环科技发展有限公司 | A kind of high-efficiency lubricating piston |
| US11248557B1 (en) | 2020-12-03 | 2022-02-15 | Caterpillar Inc. | Piston having oil gallery drain outlets biased in distribution to anti-thrust side |
-
2017
- 2017-12-28 CN CN201721885746.0U patent/CN207686859U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979889A (en) * | 2018-08-15 | 2018-12-11 | 浙江东新动力有限公司 | Wear-resisting lubricated type engine piston |
| CN109296471A (en) * | 2018-09-10 | 2019-02-01 | 天津酝环科技发展有限公司 | A kind of high-efficiency lubricating piston |
| US11248557B1 (en) | 2020-12-03 | 2022-02-15 | Caterpillar Inc. | Piston having oil gallery drain outlets biased in distribution to anti-thrust side |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Yongchuan Inventor after: Wang Kai Inventor after: Huang Jianyou Inventor after: He Shengjian Inventor before: Wang Kai Inventor before: Huang Jianyou Inventor before: He Shengjian |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20181228 |