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. 22, 2006
Filed:
Aug. 04, 2004
Xiaoxia Mu, East Amherst, NY (US);
Taylor R. Eckstein, Jr., N. Tonawanda, NY (US);
William James Kumpf, Lockport, NY (US);
Prasad Shripad Kadle, East Amherst, NY (US);
Xiaoxia Mu, East Amherst, NY (US);
Taylor R. Eckstein, Jr., N. Tonawanda, NY (US);
William James Kumpf, Lockport, NY (US);
Prasad Shripad Kadle, East Amherst, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A blowoff valve assembly includes a diaphragm separating a refrigerant connection from an ambient port open to the atmosphere. The refrigerant connection is preferably connected to air conditioning system such that the diaphragm is in contact with refrigerant from the system. The diaphragm is deflectable based on the pressure of the refrigerant and is operatively connected to a switch. When pressure of the refrigerant drops to a predetermined level, the diaphragm deflects to activate the switch. Additionally, the assembly also includes a detonable squib that explodes and ruptures the diaphragm, allowing the refrigerant to flow from the refrigerant connection to the atmosphere. Additional features, such as sensors for detecting refrigerant outside of the system, a collision subsystem, and an associated controller are also disclosed.