CN1438413A - Internal-pressure lubricating fully-sealed pistion - Google Patents
Internal-pressure lubricating fully-sealed pistion Download PDFInfo
- Publication number
- CN1438413A CN1438413A CN 03104032 CN03104032A CN1438413A CN 1438413 A CN1438413 A CN 1438413A CN 03104032 CN03104032 CN 03104032 CN 03104032 A CN03104032 A CN 03104032A CN 1438413 A CN1438413 A CN 1438413A
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- Prior art keywords
- piston
- oil
- ring
- wrist pin
- sealed
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of inner pressure lubricant seal piston. It is made of from nonmetal materials, there is oil hole or pipe in the pison and piston peg, it connects with crank oil pipe through the centre oil pipe in the connecting rod. The oil pump presses the oilk to pass through the pipe and hole on lubricate and cool the piston.
Description
The present invention relates to a kind of component of internal-combustion engine, is a kind of internal oil channel selflubricating piston that uses nonmetallic material to cast.
Be applied to various internal combustion engines at present, mostly be that alloy material is made, and by compression ring, oil ring and piston body assemble, piston and cylinder barrel matching gap are excessive, piston becomes curvilinear motion in cylinder barrel, compression ring, oil ring is the metal openings ring, and ring is excessive with the cylinder barrel matching gap, and quick abrasion, pressure reduces, useful work reduces, and causes to be short of power, and piston is being inhaled, press, quick-fried, in row's the stroke work, because of self having oil leab is not arranged, can only be by the oil film lubrication assistant that splashes, so piston is in the high speed of linear reciprocation, under the condition of high temperature motion, metal and metal are easy to wearing and tearing, reduced working life, and piston and ring wearing and tearing back machine oil participate in burning, easily cause the discharging that exceeds standard, and have increased the weight of atmospheric pollution.
The objective of the invention is to overcome above-mentioned defective, provide a kind of by cast whole of nonmetallic material or divide body structure and have the hermetically sealed piston of built-in oil duct concurrently.
The solution of the present invention is the piston of being cast by nonmetallic material, compression ring, oil ring and wrist pin are formed, its structural feature is the gas of piston, oil ring and piston are cast as one, be positioned at the key seat that wrist pin is installed and be provided with secondary oil duct, be provided with secondary oilhole in the junction of wrist pin and key seat in addition, oilhole is through the secondary oil duct of key seat upper end, the branch oilhole that leads to collar extension, the two end part of wrist pin are sealed into a cylindrical body, the piston skirt body at wrist pin two ends is provided with jump ring, cylindrical central part is provided with main oil gallery, the installation connecting part that is positioned at wrist pin and connecting rod is provided with main oil-hole, the middle part of connecting rod is provided with central oil passage, and the big end that the filler opening of central oil passage is located at connecting rod communicates with the oil outlet of crankshaft oil gallery.During work, the pressure lubrication agent is pressed into main oil gallery in the wrist pin by crankshaft oil gallery outlet through the connecting rod central oil passage, enters the branch oilhole that is located at the collar extension place by secondary oil duct again.
Another program of the present invention is that group is established in the piston body on piston top and gas, the segmentation of oil ring piston body, installs with bolt to be fastened on the skirt body of piston lower end, and sets up oilhole and oil duct by such scheme, adopts this kind structure easy accessibility, changes easily.
Advantage of the present invention is owing to changed the metallic material and the lubricating system of piston, has reduced wearing and tearing, has improved the lubricating quality of piston, has prolonged working life.
Be described further below in conjunction with accompanying drawing:
Fig. 1 is the one-piece piston structural representation;
Fig. 2 is split type piston structure schematic representation.
The top of piston 1 is provided with compression ring 3, oil ring 4 among Fig. 1, oil, compression ring and piston are cast as one, wrist pin 6 is equipped with at the following middle part of piston, the two end part of wrist pin are sealed into one, the key seat upper end of piston is provided with secondary oil duct 2, and the junction that is positioned at wrist pin and key seat is provided with secondary oilhole 5, and the secondary oil duct of oilhole through the key seat upper end leads to the branch oilhole at each collar extension place, road, the central part of wrist pin is provided with main oil gallery 8, and the junction that is positioned at wrist pin and connecting rod is provided with main oil-hole 7.
Split piston shown in Fig. 2 is made up of piston head 15, compression ring piston body 16, oil ring piston body 17 and piston skirt 18, compression ring and oil ring are round sealed formula nonmetal structure, the edge imperforation, respectively be provided with locating stud 19 between piston head 15, compression ring piston body 16, oil ring piston body 17 and the piston skirt 18, piston head and gas, oil ring piston body are provided with screw, the skirt section of piston is provided with internal thread, is fastened on successively on the internal thread of piston skirt by bolt 14 during installation.The skirt section of the piston head of split piston, compression ring piston body, oil ring piston body and piston is made by nonmetallic material, also can cast with metallic material as required, and compression ring and oil ring are still cast by nonmetallic material.
Claims (2)
1, the all-sealed piston of pressure lubricating is by compression ring in a kind of, oil ring and wrist pin are formed, it is characterized in that: piston is cast by nonmetallic material, piston and oil, compression ring is cast as one, key seat upper end at wrist pin is provided with secondary oil duct (2), the junction of wrist pin and key seat is provided with secondary oilhole (5), the Lower Half of piston is equipped with wrist pin (6), the sealed at both ends of wrist pin is a cylindrical body, the piston skirt body at wrist pin two ends is provided with jump ring, the central part of wrist pin is provided with main oil gallery (8), the installation junction that is positioned at wrist pin and connecting rod is provided with main oil-hole (7), and the central part of connecting rod is provided with central oil passage, and the filler opening of central oil passage communicates with the oil outlet of crankshaft oil gallery.
2, the all-sealed piston of pressure lubricating in according to claim 1, it is characterized in that: piston is by piston head (15), compression ring piston body (16), oil ring piston body (17) and piston skirt (18) are formed, compression ring and oil ring are round sealed formula nonmetal structure, the edge does not have opening is arranged, piston head and gas, the oil ring piston body is provided with screw, the piston skirt is provided with internal thread, piston head (15), compression ring piston body (16), respectively be provided with locating stud (19) between oil ring piston body (17) and piston skirt (18), be fastened on the internal thread of piston skirt by bolt (14) during installation, the piston head of split piston, the compression ring piston body, the skirt section of oil ring piston body and piston is by nonmetallic material or metallic material casting, and compression ring and oil ring are cast by nonmetallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03104032 CN1198051C (en) | 2003-02-14 | 2003-02-14 | Internal-pressure lubricating fully-sealed pistion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03104032 CN1198051C (en) | 2003-02-14 | 2003-02-14 | Internal-pressure lubricating fully-sealed pistion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1438413A true CN1438413A (en) | 2003-08-27 |
| CN1198051C CN1198051C (en) | 2005-04-20 |
Family
ID=27673914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03104032 Expired - Fee Related CN1198051C (en) | 2003-02-14 | 2003-02-14 | Internal-pressure lubricating fully-sealed pistion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1198051C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103890364A (en) * | 2011-09-20 | 2014-06-25 | 马勒国际公司 | Piston for an internal combustion engine and method for producing same |
| CN108952959A (en) * | 2018-08-16 | 2018-12-07 | 重庆卓力标准件制造有限公司 | A kind of crankshaft rod assembly |
-
2003
- 2003-02-14 CN CN 03104032 patent/CN1198051C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103890364A (en) * | 2011-09-20 | 2014-06-25 | 马勒国际公司 | Piston for an internal combustion engine and method for producing same |
| US10731599B2 (en) | 2011-09-20 | 2020-08-04 | Mahle International Gmbh | Piston for an internal combustion engine and method for producing same |
| CN108952959A (en) * | 2018-08-16 | 2018-12-07 | 重庆卓力标准件制造有限公司 | A kind of crankshaft rod assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1198051C (en) | 2005-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |