[특허]Electromagnetic control injection systems for diesel engines of the pressure-time type where the injector needle is controlled by the charging and discharging of a chamber

[미국특허] Electromagnetic control injection systems for diesel engines of the pressure-time type where the injector needle is controlled by the charging and discharging of a chamber 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-039/00
출원번호	US-0581830 (1984-02-21)
우선권정보	FR-0002792 (1983-02-21)
발명자 / 주소	Jourde, Jean-Pierre Cmapo-Garraza, Pedro Miettaux, Marc Michaux, Thierry
출원인 / 주소	Regie Nationale des Usines Renault
대리인 / 주소	Oblon, Fisher, Spivak, McClelland & Maier
인용정보	피인용 횟수 : 27 인용 특허 : 5

초록 ▼

Improvements in electromagnetic control injection systems for diesel engines of the pressure-time type where the injection needle is controlled by the discharging then charging of a chamber. Electromagnetic control fuel injection system for diesel engines in which a three-way solenoid valve is placed in the injection holder, the injector needle being controlled during its opening by the pressure drop of the fuel contained in the control space. A disc having a nozzle is used to throttle the passage assuring the pressure drop in the control chamber without throttling the passage during a rise in pressure so that the injector needle begins to move only after the complete movement of the solenoid valve.

대표청구항 ▼

1. An electromagnetic fuel injection system for a diesel engine, comprising: a fuel injector having a needle movable between an open position and a closed position for said fuel injector; means for moving said needle from said open to said closed position, said means for moving including a piston movable with said needle and a first fluid chamber communicating with said piston such that a fluid pressure in said first fluid chamber acts to move said piston toward a first position corresponding to said closed position; means for moving said needle from said closed position to said open position; means for controlling a rate of movement of said needle from said closed position to said open position; a three-way solenoid valve having a first port communicating with a source of pressurized fuel, a second port communicating with a fluid bypass and a third port, said three-way solenoid valve being positionable in a first position wherein said first and third ports are in communication, and a second position wherein said second and third ports are in communication; first conduit means connecting said third port with said first fluid chamber, said first conduit means including means defining first and second alternate parallel fuel flow paths, said first flow path defining a restriction in comparison to said second flow path and constituting said means for controlling, said second flow path being constructed so as to be open only for flow into said first fluid chamber; wherein said means defining first and second alternate parallel flow paths comprises: a valve element having a pressure loss circuit therein; and means for biasing said valve element into a position closing said first conduit means with only said pressure loss circuit communicating said first conduit means with said first fluid chamber so as to define said first flow path, wherein pressurized fuel from said three-way valve moves said valve element away from said position closing said first conduit means so as to define said second flow path, and wherein said piston and valve element are constructed so as to minimize the volume of said first fluid chamber. 2. The system of claim 1 wherein said pressure loss circuit is a nozzle extending through said valve element, said nozzle having a diameter determined as a function of a desired injection loss. 3. The system of claim 1 wherein said means for moving said needle from said closed position to said open position includes: a second fluid chamber surrounding said needle for holding fuel to be injected by said injector; second conduit means communicating said source of pressurized fuel with said second fluid chamber; and a damping chamber in said second conduit means and positioned as close as possible in a fuel flow direction to said second fluid chamber. 4. The system of claim 1 wherein said means for controlling is dimensioned such that when said system operates with preinjection, the start of the main injection can occur between 400 and 600 microseconds after the start of preinjection.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Bastenhof Dirk (Eaubonne FRX), Device for damping pressure waves in an internal combustion engine fuel injection system.
상세보기
Ohie Tomonori (Higashi-Matsuyama JPX), Electronic fuel injection control system for fuel injection valves.
상세보기
Nakayama Kenji (Higashi Matsuyama JA), Engine fuel injection system.
상세보기
Terada Tomohiko (Higashi Matsuyama JPX) Komada Hideaki (Higashi Matsuyama JPX), Fuel injection system.
상세보기
Hfner Gnther (Stuttgart DEX), Pump nozzle for air-compressing injection internal combustion engine.
상세보기

이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

C. Edward Morris ; Bjorn Westman SE; Mark S. Cavanagh, Closed nozzle fuel injector with improved controllabilty.
상세보기
Hlousek Jaroslaw,ATX, Common rail injector.
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Tsuzuki Yoshihiro (Handa JPX) Igashira Toshihiko (Toyokawa JPX) Sakakibara Yasuyuki (Nishio JPX) Watanabe Kazuhide (Toyohashi JPX), Common-rail fuel injection system for an engine.
상세보기
Froment Jean-Louis,FRX, Device for injecting fuel into a diesel engine.
상세보기
Ganser Marco A. (Zrich CHX), Electronically controlled fuel injection system.
상세보기
Iwanaga Takashi (Kariya JPX) Fujisawa Hideya (Kariya JPX) Kato Masaaki (Kariya JPX) Miyaki Masahiko (Obu JPX), Fuel injection control device.
상세보기
Ganser Marco A. (Schanzengasse 29 8001 Zrich CHX), Fuel injection device for internal combustion engines.
상세보기
Amann Gernot (Hohenems ATX) Mathis Christian (Arbon CHX), Fuel injection installation for an internal combustion engine.
상세보기
Miyaki Masahiko (Oobu JPX) Iwanaga Takashi (Kariya JPX) Fujisawa Hideya (Kariya JPX), Fuel injection system.
상세보기
Bernd Mahr DE; Martin Kropp DE; Hans-Christoph Magel DE; Wolfgang Otterbach DE, Fuel injection system which uses a pressure step-up unit.
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Ganser Marco A. (Zurich CHX), Fuel injection valve.
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Heyse,J철rg, Fuel injection valve.
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Harcombe, Anthony Thomas; Cross, Robert Keith, Fuel injector.
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Menon,Sree; Brower,Brent, Fuel injector pump system with high pressure post injection.
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Ganser Marco A. (Zrich CHX), Fuel injector unit.
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Niethammer, Bernd; Warga, Johann; Lin, Jason, Fuel injector with piezoelectric actuator and method of use.
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Koch-Groeber, Hermann; Canlioglu, Uemit; Klam, Thilo; Gaudl, Andreas; Schuster, Stefan; Uhr, Christoffer; Rettich, Andreas; Fleiner, Wolfgang; Rueckle, Markus, Injector, in particular for common rail injection systems of diesel engines.
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Herrmann,Lothar; Steil,Oliver, Method for operating an internal combustion engine.
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Djordjevic Ilija (Windsor CT) Ganser Marco (Granby CT), Modular accumulator injector.
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Morris, Corydon E.; Doszpoly, Bela, Piezoelectric direct acting fuel injector with hydraulic link.
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Morris, Corydon E.; Doszpoly, Bela; Gant, Gary L., Piezoelectric direct acting fuel injector with hydraulic link.
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Trocki, Marian; Benson, Donald J.; Rauznitz, Tamas; Subbaihaannadurai, Vijaygandeeban; Sahini, Deepak, Restrictive flow passage in common rail injectors.
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Lemme Charles Daniel ; Langlois Marc G., Spinning disk evaporator.
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Lemme, Charles Daniel; Langlois, Marc G., Spinning disk evaporator.
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Lemme,Charles Daniel; Langlois,Marc G., Spinning disk evaporator.
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Kabai Koichi (Anjo JPX) Tamai Katsuyuki (Kariya JPX), Three-way electromagnetic valve.
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Buisson Dominique (Venissieux FRX), Unit fuel injector including a fuel injection pump for internal combustion engines.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Electromagnetic control injection systems for diesel engines of the pressure-time type where the injector needle is controlled by the charging and discharging of a chamber 원문보기