US Patent No: 5,630,391
Number of patents in Portfolio can not be more than 2000
Piston with pin boss cooling
Stats
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May 20, 1997
Issued date -
Dec 8, 1994
filing date -
08/351,823
serial no -
In Force
status
Importance
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Abstract
A piston for an internal combustion engine, particularly for motor vehicles. An oil-collecting chamber is disposed between the pin bosses above the pin boss bore. Oil collects within the chamber and is directed down onto the pin bosses, during reciprocating motion of the piston. The width of the chamber is approximately the same as the diameter of the pin boss bore.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,052,280 Coolable trunk piston for internal combustion engines | 31 | 1990 | |
| 5,086,736 Piston head with bores | 12 | 1991 | |
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| 4,696,224 Piston for internal combustion engine | 7 | 1984 | |
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| 4,987,866 Light alloy piston for internal combustion engines | 4 | 1990 | |
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| 5,076,149 Wrist pin, piston assembly and method for making same | 12 | 1990 | |
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| 4,506,632 Piston assembly with cooling lubricant reservoir defining member engaged to piston pin mounting bosses | 20 | 1984 | |
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| 4,794,848 Anti-seizing design for circumferentially continuous piston ring | 13 | 1987 | |