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:
Jul. 04, 1978
Filed:
Jul. 31, 1974
Applicant:
Inventors:
Malcolm Williams, Solihull, GB;
Adrian Walter Melady, Stourport, GB;
Assignee:
The Lucas Electrical Company Limited, Birmingham, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ; F02P / ;
U.S. Cl.
CPC ...
123 / ; 123 / ; 123 / ; 1231 / ;
Abstract
In an engine control system, particularly for fuel injection, the frequency of a variable frequency clock is compared with an output signal from a memory device and the difference used to control an engine function. The frequency of the clock is determined by the collector current of the transistor having two variable resistors controlling its emitter and base currents respectively. This invention relates to engine control systems and is particularly, but not exclusively, intended for use in fuel injection systems for engines.