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. 23, 2002
Filed:
Aug. 03, 2000
David J. Hartke, Gurnee, IL (US);
Richard P. Kolb, Prairieview, IL (US);
Bombardier Motor Corporation of America, Grant, FL (US);
Abstract
A multi-function pressure relief valve having a moveable seat and a needle is mounted on a fuel vapor separator. The needle is connected to a float assembly for opening and closing the pressure relief valve for venting an internal chamber of the fuel vapor separator. The moveable seat is biased to engage the needle for relieving excess pressure when vapor pressure in the internal chamber exceeds a biasing force on the movable seat. The valve opens in response to at least one of (1) changing fluid level in the fuel vapor separator, and (2) excess vapor pressure within the vapor fuel separator. During operation, the valve vents an internal chamber of the fuel vapor separator by disengaging the needle from the movable seat using a float attached to the needle. The valve closes when the float reaches a desired position to pressurize the internal chamber by engaging the needle to the movable seat. The valve also releases excess vapor pressure in the internal chamber when the pressure in the internal chamber exceeds a biasing force on the movable seat and disengages the movable seat from the needle.