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:
Apr. 22, 1980
Filed:
Jun. 20, 1978
Applicant:
Inventors:
Ralph W Carp, Newport News, VA (US);
John F Slack, Newport News, VA (US);
Assignee:
The Bendix Corporation, Southfield, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ; 307361 ;
Abstract
In an electronic fuel injection system for internal combustion engines a voltage multiplier is used to amplify a manifold absolute pressure signal by an amplification factor which is related to throttle position. A dc voltage related to throttle position is converted to a digital signal which controls a bilateral switch which in turn regulates the feed back resistance in an operational amplifier thus regulating the operational amplifier amplification factor. The manifold absolute pressure signal is amplified by the operational amplifier. The resultant signal determines the fuel injector open time.