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:
Jan. 03, 1995
Filed:
Oct. 26, 1993
Applicant:
Inventor:
Donald W Warner, Cass City, MI (US);
Assignee:
Walbro Corporation, Cass City, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123568 ; 261 51 ; 60290 ;
Abstract
A small engine emissions control system with a float bowl carburetor minimizing CO emissions by tailoring fuel delivery to engine demand over a broad range of operating speeds and conditions, an exhaust gas recirculation valve to reduce NO.sub.x emissions and a pulse valve mixing fresh air with hot exhaust gases to reduce HC and CO emissions.