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:
Jul. 21, 2009
Filed:
Nov. 19, 2007
Zhouxuan Xia, Windsor, CA;
Kevin Mulkeran, Holly, MI (US);
Zhouxuan Xia, Windsor, CA;
Kevin Mulkeran, Holly, MI (US);
MAHLE Technology, Inc., Farmington Hills, MI (US);
Abstract
A vapor canister having an integrated evaporative emission canister purge actuation monitoring system. The vapor canister has a plurality of sidewalls defining a housing with a valve body formed integrally on the housing and a cover mounted to the valve body so as to define a vent chamber between the cover and the valve body. The integrated valve body has a main flow passage and a canister port. An air filter assembly is disposed adjacent to the valve body on the housing and provides fluid communication between the main flow passage and the ambient air. A first one-way umbrella valve mounted to the valve body that is responsive to predetermined positive pressure in the main flow passage to control flow of fluid from a vapor canister to ambient air as well as a second one-way umbrella valve that is responsive to a predetermined negative pressure in the main flow passage to control the flow of ambient air through an air filter assembly.