Title:
THROTTLE CONTROL FOR A SMALL ENGINE
Document Type and Number:
WIPO Patent Application WO2004022949
Kind Code:
A3
Abstract:
A speed control apparatus for an internal combustion engine including a poppet valve seat and a poppet valve pintle assembly disposed coaxially for variably regulating the flow of air into the engine across the valve seat. The pintle is axially positioned by a stepper motor actuator responsive to an engine speed sensor and electronic controller. The controller varies the axial position of the pintle in accordance with a programmed algorithm to provide any desired engine speed, and especially a fixed engine speed, under a range of engine loads. The invention eliminates the need for a governor, rotary mechanical throttle, and cable or mechanical linkages, and is especially useful for small engine applications such as in powering a portable electric generator, yard equipment, or outboard motor.
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| JPS603438 | FUEL SUPPLY SYSTEM |
Inventors:
GARRICK ROBERT DAVID
WITZEL DONALD GEORGE
WITZEL DONALD GEORGE
Application Number:
PCT/US2003/023613
Publication Date:
September 23, 2004
Filing Date:
July 29, 2003
Export Citation:
Assignee:
DELPHI TECH INC (US)
International Classes:
F02D9/08; F02D9/12; F02M35/10; F02D; (IPC1-7): F02D9/08
Foreign References:
| US4989564A | 1991-02-05 | |||
| US6065447A | 2000-05-23 |
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