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:
Aug. 16, 2005
Filed:
Nov. 12, 2003
Darrin W Hurley, Brownstown, MI (US);
Darrin W Hurley, Brownstown, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
An evaporative emission control and leak detection system for a motor vehicle is provided. The system is in fluid communication with a fuel tank, an engine, and a carbon canister and includes an integrated valve module that is in fluid communication with the carbon canister and the atmosphere. The module provides for venting of the system when the system is exposed to predetermined high negative and positive pressure conditions, and a predetermined low negative pressure condition. The module also includes a switch that is operable to indicate when the system is in a high or low negative pressure condition for leak detection verification of the system.