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US 2009/0012701 A1Published application
Fuel Injection Device of Diesel Engine
AssigneeYanmar Co., Ltd.
InventorsHiroyuki Machiyama, Nobuyoshi Fukae, Shigeki Tada, Hideo Shiomi
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AssigneeYanmar Co., Ltd.
InventorsHiroyuki Machiyama, Nobuyoshi Fukae, Shigeki Tada, Hideo Shiomi
Estimating the term…
A fuel injection device of a diesel engine capable of smoothly starting the diesel engine to match an environment around the engine by saving a fuel, reducing the exhaustion of carbon dioxide, and suppressing black smoke in starting the diesel engine. A rack (45) is operated by an actuator (41) from a lowest rack position to a starting increased fuel amount position at a lower speed than that at which the rack is operated by the actuator from the lowest rack position to the starting increased fuel amount position at the maximum operating speed. The operating speed of the rack (45) is set in two stages, and the later operating speed of the rack is reduced less than the operating speed of the rack up to a set intermediate rack target value P2. Then, the operating amount of the rack (45) per hour is reduced after the ignition of the engine (1) is recognized. Also, the operating speed of the rack (45) is controlled according to an atmospheric temperature in starting the engine.
A fuel injection device of diesel engine comprising a means for increasing fuel amount in starting the engine, said means for increasing fuel amount comprises a rack operated within an operating speed range in a starting increased fuel amount position from the lowest rack position, said operating speed range is slower than the maximum rack operating speed.
A fuel injection device of diesel engine comprising a means for increasing fuel amount in starting the engine, said means for increasing fuel amount comprises a rack operated at two steps operating speeds within the operation range of the rack from the lowest rack position to a starting increased fuel amount position, said two steps operating speeds having first operating speed and second operating speed slower than the first operating speed.
A fuel injection device of diesel engine comprising a means for increasing fuel amount in starting the engine, said means for increasing fuel amount comprises a rack operated to rack target positions that are set in numerous steps according to elapsed time.
A fuel injection device of diesel engine comprising a means for increasing fuel amount and a means for recognizing the ignition of the engine in starting the engine, wherein said means for increasing fuel amount comprises a rack operated from the lowest rack position to a starting increased fuel amount position and operated for reducing displacement of the rack per time after the ignition of the engine is recognized.
Dependencies are inferred from the claim text.