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:
Apr. 25, 1978
Filed:
Jun. 16, 1976
Applicant:
Inventors:
Joseph Vardi, New York, NY (US);
Milton J Kittler, New York, NY (US);
Assignee:
Exxon Research & Engineering Co., Linden, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123136 ;
Abstract
Hydrocarbon fuel vapors from an internal combustion engine are adsorbed during engine nonoperation on an adsorbent and thereafter desorbed during engine operation by backflowing atmospheric air therethrough and then combusted in said engine. Desorption is initiated and maintained when the total air flow to the engine reaches a predetermined minimum amount.