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:
Oct. 05, 1999
Filed:
Jun. 09, 1998
Applicant:
Inventors:
Matthew Byrne Diggs, Farmington, MI (US);
Aladar Otto Simko, Dearborn Heights, MI (US);
Robert Albert Stein, Saline, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ; F02B / ;
U.S. Cl.
CPC ...
123 9015 ; 123 9016 ; 123 9017 ; 123 9023 ; 12356814 ;
Abstract
A reciprocating four-stroke internal combustion engine includes a variable exhaust valve operating system for changing the duration of an exhaust valve opening event and also a camshaft drive for rotating a valve operating camshaft and adjusting the rotational timing of the camshaft with respect to the crankshaft.