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US 10,012,171 B2Granted
Diesel engine
AssigneeYanmar Co., Ltd.
InventorsYoshiaki Shibata, Hideo Shiomi, Taichi Togashi, Hiroyuki Machiyama
Life of this patent
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Abstract
The application is directed to a diesel engine. If the rack cannot complete a predetermined operation within a predetermined amount of time due to the key switch being held at a start-position, the control unit controls a starter to cause a plunger to perform a preparatory stroke operation, and the stroke operation by the plunger is stopped before the diesel engine starts.
Claims10
A diesel engine comprising:
- a fuel injection pump whose fuel injection amount is adjusted by moving a rack to change a rotation position of a plunger;
- an actuator for operating the rack;
- a starter for making the plunger perform a stroke operation;
- and
- a control unit for controlling the actuator and the starter following an operation of a key switch,
- wherein the control unit makes the rack perform a predetermined operation by the actuator when the key switch is operated from an OFF position to an ON position, and if the rack cannot finish the predetermined operation within a predetermined period of time, while the key switch is being held at a START position the control unit makes the plunger perform a preliminary stroke operation by energizing the starter, which makes the plunger perform the stroke operation, after which the control unit stops the preliminary stroke operation of the plunger before starting the diesel engine.
3 more elements
Dependencies are inferred from the claim text.