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:
Aug. 23, 1983
Filed:
Apr. 17, 1981
Applicant:
Inventor:
James E Foley, Sebastian, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
1231 / ; 123 9018 ; 123 9032 ;
Abstract
An internal combustion engine having at least one cylinder, the at least one cylinder having intake and exhaust ports, the engine comprising: a slidably and rotatably disposed camshaft; a cam and follower arrangement including cam lobes disposed on the camshaft, for controlling the intake and exhaust ports, each of the cam lobes having multiple lift surfaces which are shaped to provide at least two different periods of time during which the intake and exhaust ports are open; and, apparatus for axially displacing the camshaft during operation of the engine, whereby the different periods of time may be selected in accordance with engine or vehicle speed.