Invention Grant
- Patent Title: Steel fuel conveying pipe
- Patent Title (中): 钢燃料输送管
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Application No.: US13805437Application Date: 2011-07-05
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Publication No.: US09012031B2Publication Date: 2015-04-21
- Inventor: Kazuo Takagi
- Applicant: Kazuo Takagi
- Applicant Address: JP
- Assignee: Usui Kokusai Sangyo Kaisha Limited
- Current Assignee: Usui Kokusai Sangyo Kaisha Limited
- Current Assignee Address: JP
- Agent Gerald E. Hespos; Michael J. Porco; Matthew T. Hespos
- Priority: JP2010-165881 20100723
- International Application: PCT/JP2011/065325 WO 20110705
- International Announcement: WO2012/011384 WO 20120126
- Main IPC: F16L9/02
- IPC: F16L9/02 ; F02M55/02 ; F16L58/08

Abstract:
To provide a steel fuel conveying pipe which has high resistance to corrosive fuel and maintains reliability without damaging a direct-injection engine, and connects a high-pressure pump and a direct-injection rail with each other in a gasoline direct-injection engine system, and a fuel conveying pipe suitable as a bypass pipe for coupling direct-injection rails with each other in a V-type gasoline engine. A steel fuel conveying pipe for conveying gasoline is characterized in that a Ni-plated layer is provided on the whole inner circumferential face of the fuel conveying pipe, and an anti-rust film layer composed of a Zn-plated layer and a Zn-based alloy-plated layer is further provided on the Ni-plated layer at at least one end of the fuel conveying pipe.
Public/Granted literature
- US20130098496A1 STEEL FUEL CONVEYING PIPE Public/Granted day:2013-04-25
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