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:
Nov. 13, 1990
Filed:
Jun. 21, 1989
Applicant:
Inventors:
Edward G Groff, Troy, MI (US);
Roger B Krieger, Birmingham, MI (US);
Rodney B Rask, Grosse Pointe Woods, MI (US);
Robert A Bolton, Rochester, MI (US);
Paul E Reinke, Rochester, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ; F02B / ; F02B / ;
U.S. Cl.
CPC ...
60288 ; 60284 ; 60314 ; 123 / ;
Abstract
Combinations of split and valved exhaust ports are provided in a ported two cycle engine with divided emission control system to provide better control of the division of exhaust gas flow to the two converters.