Title:
VELOCITY CONTROL OF EXHAUST VALVE ACTUATION
Document Type and Number:
WIPO Patent Application WO2007005424
Kind Code:
B1
Abstract:
An exhaust valve assembly includes a valve body supported on a shaft for rotation within an exhaust component. The shaft is coupled to a solenoid with a linkage assembly. A controller controls the solenoid to rotate the shaft via the linkage assembly. The solenoid includes a plunger that moves between an actuation position and a release position. The controller utilizes pulse width modulation to control actuation and release of the plunger. This significantly reduces operational noises generated as the solenoid is moved between the actuation position and the release position.
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Inventors:
ABRAM KWIN (US)
CALLAHAN JOSEPH (US)
CALLAHAN JOSEPH (US)
Application Number:
PCT/US2006/024992
Publication Date:
March 29, 2007
Filing Date:
June 26, 2006
Export Citation:
Assignee:
ARVIN TECHNOLOGIES INC (US)
ABRAM KWIN (US)
CALLAHAN JOSEPH (US)
ABRAM KWIN (US)
CALLAHAN JOSEPH (US)
International Classes:
F01N1/16; F01N1/08; F01N1/18; F16K31/04; F16K47/02; F16K47/04
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