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:
Dec. 20, 1977
Filed:
Feb. 12, 1976
Applicant:
Inventors:
John David Powell, Menlo Park, CA (US);
Mont Hubbard, Davis, CA (US);
Robert R Clappier, Los Altos, CA (US);
Assignee:
The Board of Trustees of Leland Stanford Junior University, Stanford, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ; F02P / ; F02P / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 1231 / ;
Abstract
A method and apparatus for controlling the ignition timing in an internal combustion engine. The angular position of peak cylinder pressure is measured and to the extent such angular position deviates from a preselected set point, the time of spark ignition is advanced or retarded to restore the position of peak cylinder pressure to the set point.