The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1987
Filed:
Sep. 20, 1985
David E Bennett, Hermosa Beach, CA (US);
Impco Carburetion, Inc., Cerritos, CA (US);
Abstract
An air-gas mixing device of the type used to mix air and gaseous fuel as a gaseous fuel charge for an internal combustion engine. Fuel and air valves for controlling the air/fuel mixture are coupled together and actuated by a diaphragm in response to a fluid pressure signal, derived from the intake manifold pressure of the engine, acting on the diaphragm. The fuel valve is also independently acutated by a stepper motor mounted to the diaphragm and operated by a remote electrical control signal from a controller designed to measure engine performance and provide a signal to correct any deficiencies in the air/fuel mixture such as a feedback controller receiving inputs from oxygen, speed and other sensors for measuring engine performance. Becuase of the dual control of the fuel valve, the device is capable of handling a wide range of gaseous fuels of different BTU content and of providing a more optimum air/fuel mixture for better fuel economy, emissions control and engine performance.