Valves and valve actuation – Rotary valves – Butterfly
Reexamination Certificate
2005-08-29
2009-11-03
Rivell, John (Department: 3753)
Valves and valve actuation
Rotary valves
Butterfly
C251S305000
Reexamination Certificate
active
07611123
ABSTRACT:
A throttle device for controlling an internal combustion engine, in which the throttle valve is supported precisely employs a bearing recess serving to support the throttle valve shaft which is surrounded by a clamping element. As a result, there is excellent, durable stabilization of the bearing recess. The throttle device is especially well suited to vehicles that have a throttle-type internal combustion engine.
REFERENCES:
patent: 5092296 (1992-03-01), Gunter et al.
patent: 5098064 (1992-03-01), Daly et al.
patent: 5564909 (1996-10-01), Rischen et al.
Callister, William D. Jr., Materials Science and Engineering: An Introduction, 1997, John Wiley & Sons, Inc. , Fourth Edition, 788-789.
Knorpp Michael
Kromer Ralf
Utz Udo
Greigg Ronald E.
Rivell John
Robert & Bosch GmbH
Rost Andrew J
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