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특허 상세정보

Common rail type fuel injection system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-059/00   
미국특허분류(USC) 123/446; 123/458; 123/467; 123/514; 123/516
출원번호 US-0861478 (2004-06-07)
우선권정보 JP-0127997 (2004-04-23); JP-0185751 (2003-06-27)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Nixon &
인용정보 피인용 횟수 : 13  인용 특허 : 6
초록

In a common rail type fuel injection system, fuel in a fuel tank is sucked by a feed pump and fed to a pressurizing pump. Fuel pressurized in the pressurizing pump is supplied to a common rail. The pressurized fuel accumulated in the common rail is injected into a cylinder of an internal combustion engine from an injector. All of these operations are electronically controlled by an electronic control unit. To gradually suck air in the fuel tank together with fuel and to avoid air accumulation in a fuel filter, a relief valve is connected to the common ra...

대표
청구항

1. A fuel injection system for supplying pressurized fuel to an internal combustion engine, the fuel injection system comprising:a fuel supply pump including a feed pump for sucking fuel from a fuel tank, the fuel supply pump pressurizing the fuel; a common rail for storing the pressurized fuel sent from the fuel supply pump; a fuel injector for injecting the pressurized fuel stored in the common rail into a cylinder of the internal combustion engine; a relief passage for returning the pressurized fuel in the common rail to the fuel tank; and a relief va...

이 특허를 인용한 특허 피인용횟수: 13

  1. Suzuki, Takashi. Control device for vehicle having a relief valve. USP20190210202949.
  2. Suzuki, Masashi; Shimai, Hiroyuki; Nagai, Mitsuru. Fuel feed apparatus and accumulator fuel injection system having the same. USP2009097594499.
  3. Kuroda,Akihiro. Fuel pressure regulation valve. USP2008067387136.
  4. Tomatsuri,Mamoru; Kobayashi,Yukio; Fukui,Keita. Fuel supply apparatus for internal combustion engine. USP2008047350510.
  5. Kuroda,Akihiro. Fuel supply pump. USP2008057377753.
  6. Oki, Naoto. Fuel supply pump. USP2016129512811.
  7. Kuroda,Akihiro. Fuel supply pump capable of lubricating cam bearings. USP2008017314351.
  8. Ricco,Mario; Gorgoglione,Adriano; Ricco,Raffaele; Stucchi,Sergio. Fuel-injection system for an internal-combustion engine. USP2008077395812.
  9. Kato, Takehiko; Koshimoto, Shinichiro; Hishinuma, Osamu; Miyamoto, Yutaka. High pressure pump. USP2017099771928.
  10. Kato, Takehiko; Koshimoto, Shinichiro; Hishinuma, Osamu; Miyamoto, Yutaka. High pressure pump. USP2017109803635.
  11. Ricco,Mario; De Matthaeis,Sisto Luigi; Ricco,Raffaele; De Michele,Onofrio. High-pressure pump with a device for regulating the flow rate for a fuel-injection system. USP2007097263979.
  12. Dölker, Armin. Method for the closed-loop control of the rail pressure in a common-rail injection system of an internal combustion engine. USP2017049624867.
  13. Shafer, Scott F.; DePayva, Jeffrey; Puckett, Daniel R.; Johanson, Amy S.; Adams, Kenneth C.; Tower, Benjamin R.; Li, Jason Z.; Venkataraghavan, Jayaraman; Gerstner, Michael D.; Long, Michael C.. Pressure control in low static leak fuel system. USP2012108291889.