Pressure balanced bearing

Details Pressure balanced bearing Pressure balanced bearing

2008-03-04

2008-03-04

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Specific throttle valve structure

C123S399000, C251S305000, C384S309000

Reexamination Certificate

active

07337764

ABSTRACT:
A method of pressure balancing across a bearing adjacent to a pressure differential is described. The method primarily includes providing a bypass port around the bearing for allowing a fluid flow from a first pressure side to a second pressure side. A throttle body for an engine is also described. The throttle body primarily includes: (1) a bearing cooperating with the valve body; and (2) a bypass port around the bearing for allowing the fluid flow from a first pressure side to a second pressure side.

REFERENCES:
patent: 1731895 (1929-10-01), Gold
patent: 2657943 (1953-11-01), Booser et al.
patent: 3466478 (1969-09-01), Gail
patent: 3729128 (1973-04-01), Reed
patent: 3984159 (1976-10-01), Jenness
patent: 6929064 (2005-08-01), Susman
patent: 6966746 (2005-11-01), Cardenas et al.

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