Patent
Hydraulically loaded injector nozzle
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TLDR
In this article, the authors proposed a valve valve closing means characterized by a continuously applied hydraulic closing force which varies directly as a function of the injection pressure, which is particularly suited for use with a common rail injector system.Abstract:
In a diesel engine fuel injection system wherein the fuel injection nozzle comprises a valve which is opened by the injection pressure of the fuel during the injection interval, the present invention provides a nozzle valve closing means characterized by a continuously applied hydraulic closing force which varies directly as a function of the injection pressure The invention is particularly suited for use with a ''''common rail'''' injector system wherein the common rail pressure, which is amplified to provide the fuel injection pressure, is utilized to provide the hydraulic nozzle valve closing force The invention provides a lower than maximum valve closing force during engine starting, idling and periods of part load operation when the injection pressure is desirably reducedread more
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Patent
Fuel injection system
Terada Tomohiko,Komada Hideaki +1 more
TL;DR: In this paper, a fuel injector of a Diesel engine is supplied with a boosted supply of fuel from a booster and operated to start and terminate a fuel injection by a hydraulically controlled nozzle needle actuator.
Patent
Fuel injector unit
TL;DR: In this paper, the movement of an injector valve member (52) which closes and temporarily opens discharge orifices communicating with the combustion chamber of an internal combustion engine is controlled by the fuel pressure in a control chamber (72) and by a difference in the pressure forces acting on a piston (60) having two sections (63, 69) with different diameters arranged at one end of the valve member.
Patent
Fuel injector and fuel injection system
Toshihiko Igashira,Yasuyuki Sakakibara,Kazuhide Watanabe,Takigawa Masahiro,Yoshinaga Toru,Natsuyama Yukihiro,Shigeki Daido +6 more
TL;DR: In this article, a check valve is provided at the half way point of the piping which leads the fuel fed under pressure from the fuel injection pump to the fuel injector into the fuel pressure control chamber and the accumulator, so that the fuel is fed through the check valve into the feed valve.
Patent
Fuel injection device
Ryo Kusakabe,Motoyuki Abe,Yoshihito Yasukawa,Noriyuki Maekawa,Takuya Mayuzumi,Tohru Ishikawa +5 more
TL;DR: In this paper, a method of controlling a fuel injection device that can control a small amount of injection is provided, which includes a valve body that can open and close a fuel passage, a needle that transfers a force with the valve body, and executes valve opening/closing operation, and an electromagnet that includes a coil and a magnetic core provided as a driver for driving the needle.
Patent
Fuel injection control system for internal combustion engine
TL;DR: In this article, a fuel injection control system for an internal combustion engine is presented, consisting of an injection pump connected to the engine and driven by a fuel injector, a valve having a piston chamber and a plunger chamber defined therein, a solenoid-operated spool valve connected to an injector on its input side and the piston chamber of the fuel injection valve on its output side.
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Patent
Fuel injection system and apparatus for use therein
TL;DR: In this paper, a "UNIVERSAL" FUEL INJECTION system is presented for use with any of a VARIETY OF TYPES OF DIESEL ENGINES, in which the TIMING and DURATION of the FUs, as well as the QUANTITY of FUs INJECTED, can readibly be SELECTED or adjusted to QUIT the requirements of any of SAID engines.
Patent
Fuel injection nozzle with hydraulic valve-closing means
TL;DR: In this paper, a fuel injection system with a differential valve biased to a closed position is described, where the hydraulic means include a source of pressurized fluid with pressure-regulating means to provide a fluid pressure biasing the differential valve to a close position.
Patent
Fuel injection systems
TL;DR: In this paper, a fuel injection system for an IC engine comprises a source of pressure liquid, an accumulator receiving said liquid, a liquid pressure operated injection pump, pressure liquid flow control means operated in timed sequence controlling flow from the accumulator to operate the pump and adjustable means for controlling the discharge of pressure fluid from the pump actuating cylinder by way of adjustable means to a zone of low pressure whereby the return stroke of the fuel injection pump plunger is controlled by the rate of discharge of a pressure liquid through the adjustable means.