Method for optimizing groove structure of friction plate of wet type friction engagement apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 26, 2007
Grant Date -
Oct 13, 2005
app pub date -
Feb 18, 2005
filing date -
Feb 18, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The object of the present invention is to provide an optimizing method for a groove structure of a friction disk of a wet-type friction engaging element, which can reduce drag torque by increasing outgoing flow of lubricating oil on the friction surface and increasing the content of air in the lubricating oil. The optimizing method for a groove structure of a friction disk of a wet-type friction engagement element comprising a sectoral inner section 12 of a groove 10 widening inwardly formed on the surface of a friction member of the wet-type friction engaging element, wherein the outgoing flow per groove area is calculated based on the entrance angle (opening angle) .theta. of the inner section 12 and the ratio h/w of the full length w of the groove 10 to the length h of the inner section; and then a range of the entrance angle (opening angle) .theta. of the inner section and the ratio h/w of the full length w of the groove to the length h of the inner section is determined where the outgoing flow per groove area is at least a certain value.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully