IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0586516
(2004-12-20)
|
등록번호 |
US-7370640
(2008-05-13)
|
우선권정보 |
DE-10 2004 003 114(2004-01-21) |
국제출원번호 |
PCT/EP04/053602
(2004-12-20)
|
§371/§102 date |
20060718
(20060718)
|
국제공개번호 |
WO05/070719
(2005-08-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Siemens Aktiengesellschaft
|
대리인 / 주소 |
Cohen Pontani Lieberman & Pavane LLP
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
8 |
초록
▼
The invention relates to a fuel feed unit (2) for a motor vehicle, comprising a volume flow reducing valve (13, 14) that is mounted in a pump fluid line (11, 12) leading to a suction jet pump (5, 6). Said volume flow reducing valve (13, 14) reduces the fuel volume flow supplied to the suction jet pu
The invention relates to a fuel feed unit (2) for a motor vehicle, comprising a volume flow reducing valve (13, 14) that is mounted in a pump fluid line (11, 12) leading to a suction jet pump (5, 6). Said volume flow reducing valve (13, 14) reduces the fuel volume flow supplied to the suction jet pump (5, 6) when the feed pressure of the fuel pump (4) increases, thereby avoiding unnecessary feed of fuel to the suction jet pump (5, 6).
대표청구항
▼
The invention claimed is: 1. A fuel feed unit for feeding fuel from a fuel tank, having a fuel pump drawing in fuel from a swirl pot, a suction jet pump feeding fuel from the fuel tank into the swirl pot, and a pump fluid line led to the suction jet pump from the delivery side of the fuel pump, cha
The invention claimed is: 1. A fuel feed unit for feeding fuel from a fuel tank, having a fuel pump drawing in fuel from a swirl pot, a suction jet pump feeding fuel from the fuel tank into the swirl pot, and a pump fluid line led to the suction jet pump from the delivery side of the fuel pump, characterized in that a pressure-dependent volume flow reducing valve (13, 14) is arranged in the pump fluid line (11, 12) for restricting the fuel volume flow delivered to the suction jet pump (5, 6) as the delivery pressure of the fuel pump (4) increases. 2. The fuel feed unit as claimed in claim 1, characterized in that the volume flow reducing valve (13, 14) has a piston (18), preloaded by a spring element (19) against the delivery pressure of the fuel pump (4), that the piston (18) is displaceably arranged in a duct (22) and that a cross-section of an annular gap arranged between the piston (18) and the duct (22) diminishes as the piston (18) is moved against the force of the spring element (19). 3. The fuel feed unit as claimed in claim 1 or 2, characterized in that the piston (18) has a section (20) with a widening, preferably conical, cross section opposed to a control edge of the duct (22). 4. The fuel feed unit as claimed in claim 3, characterized in that the duct (22) has a widening, preferably conical section (21). 5. The fuel feed unit as claimed in claim 1, characterized in that the volume flow reducing valve (13, 14) has an opening (17) provided for arrangement in the fuel tank (1) and that the side of the piston (18) remote from the delivery pressure has a connection to the opening (17). 6. The fuel feed unit as claimed in claim 2, characterized in that piston (18) is preloaded by means of a spring element (19) into its position opening up the pump fluid line (11, 12).
이 특허에 인용된 특허 (8)
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Bauer Otto (Munich DEX) Geyer Gerhard (Munich DEX), Arrangement for supplying fuel from supply tank to internal combustion engine of motor vehicle.
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Kleppner Stephan (Bretten DEX) Frank Kurt (Schorndorf DEX) Seitz Ansgar (Neuhausen DEX) Scheerer Hannelore (Moeglingen DEX) Ballier Guenter-Paul (Schwieberdingen DEX) Fischerkeller Rolf (Walheim DEX), Device for delivering fuel from a fuel tank to the internal combustion engine of a motor vehicle.
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Eck Karl,DEX, Flow valve.
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Ford David H. (Canton MI) Stein Matthew L. (Northville MI) Lau Daniel J. (Ann Arbor MI), Fuel delivery system for an internal combustion engine.
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Bacon Donald R.,GBX ; Adams Robert G.,GBX ; Shortis Steven M.,GBX, Fuel pump manifold.
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Edward J. Talaski ; Ronald B. Kuenzli ; Joseph M. Ross, Fuel system with jet pump switching regulator.
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Bucci George H. (Tolland CT), In-tank fuel pump assembly for fuel-injected engines.
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Schultz Jeffrey A. ; Malik Muhammad S., Jet pump with improved control valve and pressure relief valve therefore.
이 특허를 인용한 특허 (5)
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Perez, Billy O.; Porras, Luis M., Fuel module with orifice upstream from regulator.
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Mason, Paul, Fuel supply system and anti-siphon jet pump.
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Gebert, Klaus, Fuel tank for a motor vehicle.
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Honda, Yoshihiko; Inoue, Tomoaki; Yoshida, Koji, Fuel-feeding devices.
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Mason, R. Paul; Fisher, Paul E.; Pangburn, Dan K.; Ptacek, Martin X.; Martus, Kevin J., Jet pump assembly.
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