CN208845709U - A kind of piston with wiper groove - Google Patents
A kind of piston with wiper groove Download PDFInfo
- Publication number
- CN208845709U CN208845709U CN201821607224.9U CN201821607224U CN208845709U CN 208845709 U CN208845709 U CN 208845709U CN 201821607224 U CN201821607224 U CN 201821607224U CN 208845709 U CN208845709 U CN 208845709U
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- CN
- China
- Prior art keywords
- piston
- piston body
- curved portion
- wiper groove
- skirt section
- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of pistons with wiper groove, it includes piston body, the bottom of piston body ring bank is connected by the skirt section of setting wiper groove and piston body, the outer diameter of the piston body ring bank is less than the outer diameter in piston body skirt section, the wiper groove is made of the first curved portion, oblique straight parts and the second curved portion sequentially connected from top to bottom, first curved portion is arranged to piston body inner recess, second curved portion is arranged to piston body outer projection, the radius of first curved portion is 0.4-0.8mm, and the radius of the second curved portion is 1.5-2.5mm.The utility model carries out distinctive design by the shape and size to wiper groove, the wiper groove is enabled to meet thin-walled piston, in addition, the machine oil adhered on casing wall can be scraped off effectively and be drained to the skirt section of piston by the frizing, while saving machine oil, the skirt section of piston can also be lubricated.
Description
Technical field
The utility model relates to piston field more particularly to a kind of pistons with wiper groove.
Background technique
In the prior art, in order to save machine oil, in the ring bank bottom of piston, design has wiper groove, and wiper groove will be attached on casing wall
Machine oil scrape off and be drained to the skirt section of piston, but the design of wiper groove is only applicable to the piston of wall thickness at present, and thin
The design of wall piston wiper groove is also extremely urgent.
Summary of the invention
The purpose of this utility model is to provide a kind of pistons with wiper groove suitable for thin-walled piston.
To achieve the above object, the utility model uses following technical scheme:
The bottom of a kind of piston with wiper groove, including piston body, piston body ring bank passes through setting wiper groove and piston body
Skirt section connection, the outer diameter of the piston body ring bank is less than the outer diameter in piston body skirt section, and the wiper groove is by from top to bottom sequentially
The first curved portion, oblique straight parts and the second curved portion of connection form, and the first curved portion is arranged to piston body inner recess, and second
Curved portion is arranged to piston body outer projection, and the radius of first curved portion is 0.4-0.8mm, and the radius of the second curved portion is
1.5-2.5mm。
The radius of first curved portion is 0.6mm, and the radius of the second curved portion is 2mm.
The oblique straight parts and vertical plane angle are 20-45 °.
The outer diameter of the piston body ring bank is 0.2-0.6mm smaller than the outer diameter in piston body skirt section.
The utility model uses above technical scheme, has the advantages that through the shape and size to wiper groove
Distinctive design is carried out, the wiper groove is enabled to meet thin-walled piston, in addition, the frizing will effectively can adhere on casing wall
Machine oil scrape off and be drained to the skirt section of piston, while saving machine oil, the skirt section of piston can also be lubricated.
Detailed description of the invention
The utility model is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is a kind of schematic diagram of the piston with wiper groove of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1.
Specific embodiment
As shown in Figure 1 or 2, the utility model includes piston body 1, and the bottom of 1 ring bank 3 of piston body passes through setting wiper groove
2 connect with the skirt section 4 of piston body 1, and the outer diameter of the 1 ring bank 3 of piston body is less than the outer diameter in 1 skirt section 4 of piston body, the wiper groove
2 the first curved portion 31, oblique straight parts 32 and the second curved portion 33 by sequentially connecting from top to bottom forms, the first curved portion 31 to
The setting of 1 inner recess of piston body, the second curved portion 33 are arranged to 1 outer projection of piston body, the radius of first curved portion 31
For 0.4-0.8mm, the radius of the second curved portion 33 is 1.5-2.5mm.
Preferably, the radius of the first curved portion 31 is 0.6mm, the radius of the second curved portion 33 is 2mm.
The oblique straight parts 32 and vertical plane angle are 20-45 °, preferably 30 °.
The outer diameter of the 1 ring bank 3 of piston body is 0.2-0.6mm smaller than the outer diameter in 1 skirt section 4 of piston body, preferably 0.4mm.
The utility model is by shape to wiper groove 2 (similar to form S-shaped) and size (for the exclusive design of thin-walled piston
Small size) distinctive design is carried out, enable the wiper groove 2 to meet thin-walled piston, in addition, the frizing can be effectively by cylinder
The machine oil adhered on wall scrapes off and is drained to the skirt section 4 of piston, while saving machine oil, can also skirt section 4 to piston into
Row lubrication.
Claims (4)
1. a kind of piston with wiper groove, including piston body, the bottom of piston body ring bank passes through setting wiper groove and piston body
Skirt section connection, it is characterised in that: the outer diameter of the piston body ring bank is less than the outer diameter in piston body skirt section, and the wiper groove is by from upper
The first curved portion for sequentially connecting under, oblique straight parts and the second curved portion composition, the first curved portion is to piston body inner recess
Setting, the second curved portion are arranged to piston body outer projection, and the radius of first curved portion is 0.4-0.8mm, the second arc
The radius in portion is 1.5-2.5mm.
2. a kind of piston with wiper groove according to claim 1, it is characterised in that: the radius of first curved portion is
0.6mm, the radius of the second curved portion are 2mm.
3. a kind of piston with wiper groove according to claim 1, it is characterised in that: the oblique straight parts and vertical plane press from both sides
Angle is 20-45 °.
4. a kind of piston with wiper groove according to claim 1, it is characterised in that: the outer diameter ratio of the piston body ring bank
The small 0.2-0.6mm of the outer diameter in piston body skirt section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607224.9U CN208845709U (en) | 2018-09-29 | 2018-09-29 | A kind of piston with wiper groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607224.9U CN208845709U (en) | 2018-09-29 | 2018-09-29 | A kind of piston with wiper groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845709U true CN208845709U (en) | 2019-05-10 |
Family
ID=66374505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821607224.9U Active CN208845709U (en) | 2018-09-29 | 2018-09-29 | A kind of piston with wiper groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845709U (en) |
-
2018
- 2018-09-29 CN CN201821607224.9U patent/CN208845709U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220211 Address after: 350000 No. 3 comprehensive office building, No. 8, business Avenue, Nantong town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Huawei Juquan Precision Technology Co.,Ltd. Address before: 350000 Fujian Province, Jinan District of Fuzhou City Drum Shan Fuxing Investment Zone Patentee before: Fuzhou Juquan Automobile Fitting Co.,Ltd. |