Throttle body
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 8, 2008
Grant Date -
Mar 23, 2006
app pub date -
Nov 14, 2005
filing date -
May 25, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lightweight, low cost throttle body and throttle valve placed in the body, both formed of resins, that resolve the problem of excessively large gap formation is disclosed. Circumferentially oriented filler contained in a resin forming a throttle valve compensates to make the radial linear expansion coefficient of the throttle valve substantially equal to that of a bore. Grooves are formed on concentric circles in the throttle valve to orient filler circumferentially. A throttle valve provided with circumferentially oriented filler can be formed by impregnating an aggregate formed by circumferentially arranging the filler with a resin and curing the resin. A rib is formed in a part near a throttle shaft to control molding shrinkage so that the roundness of the bore is small.
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Cited Art Landscape
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