Invention Grant
- Patent Title: Freeze tolerant fuel cell fuel pressure regulator
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Application No.: US13976105Application Date: 2011-02-03
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Publication No.: US10658686B2Publication Date: 2020-05-19
- Inventor: Garrett W. Fink , David Melo Ferreira , Christopher John Carnevale
- Applicant: Garrett W. Fink , David Melo Ferreira , Christopher John Carnevale
- Applicant Address: DE Ingolstadt
- Assignee: AUDI AG
- Current Assignee: AUDI AG
- Current Assignee Address: DE Ingolstadt
- Agency: Seed Intellectual Property Law Group LLP
- International Application: PCT/US2011/023559 WO 20110203
- International Announcement: WO2012/105975 WO 20120809
- Main IPC: H01M8/04
- IPC: H01M8/04 ; H01M8/04082 ; H01M8/04225 ; H01M8/0273 ; H01M8/2475 ; H01M8/04223 ; F04F5/54 ; G05D16/06 ; F04F5/16 ; F04F5/00 ; H01M8/04007 ; H01M8/04089

Abstract:
A fuel pressure regulator unit is mounted on a manifold. The fuel pressure regulator unit includes a housing providing a fuel inlet passage, a regulated fuel outlet passage, a sense pressure passage, a recycle passage and a mixed fuel passage. A pressure regulator is provided in the housing and is arranged fluidly between the fuel inlet passage and the regulated fuel outlet passage. The sense passage fluidly interconnects the mixed fuel passage and the pressure regulator. The pressure regulator is configured to regulate the flow of fuel from the fuel inlet passage to regulated fuel passage in response to a pressure from the sense pressure passage. An ejector is arranged within the housing and fluidly between the regulated fuel outlet passage and the mixed fuel passage. An ejector is configured to receive recycled fuel from the recycle passage.
Public/Granted literature
- US20130273448A1 FREEZE TOLERANT FUEL CELL FUEL PRESSURE REGULATOR Public/Granted day:2013-10-17
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