Piston assembly and connecting rod having a profiled wrist pin bore therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 24, 2013
Issued Date -
N/A
app pub date -
Dec 9, 2008
filing date -
Dec 10, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A piston assembly and connecting rod therefor is provided. The connecting rod has an elongate body extending to an end for operable attachment to a piston. The end has a wrist pin bore extending between opposite sides of the body. The wrist pin bore has a wavy profile extending between the sides. The wavy profile has at least one concave surface with a valley extending along a circumferential direction of the wrist pin bore and convex surfaces having peaks extending along a circumferential direction of the wrist pin bore on laterally opposite sides of the valley. The peaks and valleys cooperate to form a smooth load gradient and uniform lubrication flow across the interface region between the wrist pin bore and the wrist pin extending therethrough.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2008 Application Filing Year
- F02B Class
- 770 Applications Filed
- 483 Patents Issued To-Date
- 62.73 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02B Class
- 0 % this patent is cited more than
- 12 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 24, 2025 |
