CN1198051C - Internal-pressure lubricating fully-sealed pistion - Google Patents
Internal-pressure lubricating fully-sealed pistion Download PDFInfo
- Publication number
- CN1198051C CN1198051C CN 03104032 CN03104032A CN1198051C CN 1198051 C CN1198051 C CN 1198051C CN 03104032 CN03104032 CN 03104032 CN 03104032 A CN03104032 A CN 03104032A CN 1198051 C CN1198051 C CN 1198051C
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- piston
- oil
- wrist pin
- ring
- sealed
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The present invention discloses a fully-sealed piston with internal pressure lubrication. The present invention is made from non-metal material, an oil hole and an oil passage are arranged in the piston and a piston pin, and the oil passage is communicated with a crank oil passage by a central oil passage which is arranged in a connecting rod. Engine oil is pressed out by the pressure of an oil pump through the oil passage and the oil hole to lubricate and cool the piston during the work. The present invention can be designed into a piston body in an integral structure or in a separate type structure according to requirements. Splash type auxiliary lubrication is converted into internal pressure type lubrication, so the conditions of the work environments of the piston are improved, proportioning gaps are reduced, pressure is enlarged, motive power is enhanced, mechanical abrasion is also reduced, and the service life is prolonged.
Description
Technical field:
The present invention relates to a kind of component of internal-combustion engine, is a kind of oil duct selflubricating of using nonmetallic material to cast stockaded village alive.
Background technique:
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.
Summary of the invention:
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, the filler opening of central oil passage is located at the big end of 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 the piston head on piston top and gas, the segmentation of oil ring piston body are made, and 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.
Description of drawings:
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.
Embodiment:
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, be cast as one with piston body respectively, 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 in a kind of, comprise compression ring, oil ring and wrist pin, 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, and the central part of wrist pin is provided with main oil gallery (8), and the installation junction that is positioned at wrist pin and connecting rod is provided with main oil-hole (7), 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 split type hermetically sealed piston of pressure lubricating in a kind of, be piston head and compression ring with piston top, the segmentation of oil ring piston body makes, install on the skirt body be fastened on the piston lower end with bolt and to be assembled into one, be respectively equipped with main oil gallery and secondary oil duct at the central part of wrist pin and the upper end of piston pin boss, junction at wrist pin and connecting rod is provided with main oil-hole, be provided with secondary oilhole in the junction of wrist pin and key seat, it is characterized in that: compression ring and oil ring are round sealed formula nonmetal structure, be cast as one with piston body respectively, in piston head (15), compression ring piston body (16), be provided with locating stud (19) between oil ring piston body (17) and piston skirt (18), piston head and gas, the oil ring piston body is provided with screw, the piston skirt is provided with internal thread, is fastened on successively on the internal thread of piston skirt by bolt (14) during installation.
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 CN1438413A (en) | 2003-08-27 |
| CN1198051C true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011113800A1 (en) * | 2011-09-20 | 2013-03-21 | Mahle International Gmbh | Piston for an internal combustion engine and method for its production |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN1438413A (en) | 2003-08-27 |
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Legal Events
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|---|---|---|---|
| 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 |