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:
Sep. 11, 1990
Filed:
Jun. 21, 1989
Applicant:
Inventor:
Edward D Klomp, Mount Clemens, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ; 123 / ;
Abstract
A crankcase scavenged two cycle engine is provided with a supplemental variable volume chamber or plenum connected with the crankcase chamber for each cylinder to controllably vary the effective volume of the crankcase chambers and thereby control scavenging pressure. Control methods for providing more consistent scavenging and more efficient charge control are disclosed.