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:
May. 11, 1993
Filed:
Jul. 27, 1992
Applicant:
Inventors:
James B Maurer, Farmington Hills, MI (US);
Michael D Czekala, Canton, MI (US);
Marc G Mrjoian, Ann Arbor, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ; F02P / ; F02P / ; F02D / ;
U.S. Cl.
CPC ...
123414 ; 123 9017 ; 123479 ; 123643 ;
Abstract
A variable cam phase timing system in which there is one crankshaft sensor, and one camshaft sensor per independently phase shiftable camshaft which can be used for controlling the cam phase shifting, sequential fuel control, and also spark timing during both start-up and during run. In addition, the system can control spark timing, without phase shifting, should the crankshaft sensor fail.