Engine stopping device

Patent metadata

Field	Value
Publication number	US-10815911-B2
Application number	US-201816205855-A
Country	US
Kind code	B2
Filing date	Nov 30, 2018
Priority date	Dec 14, 2017
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

There is provided an engine stopping device including a stopping solenoid, where an operating shaft, interlocked to a control rack of a fuel injection pump, is rotatably supported by an engine case in a pass-through manner. The control rack is forcibly movable to a stopping position by an action of the stopping solenoid on an operation arm provided for a projecting portion of the operating shaft in an integrally rotatable manner. An extending-retracting rod of the stopping solenoid and the operation arm are interlocked by fitting engagement between a pin provided for the extending-retracting rod and a cut-out portion of the operation arm. The cut-out portion is configured in a shape elongated along a direction perpendicular to a movement trajectory of the extending-retracting rod.

First claim

What is claimed is:

1. An engine stopping device,
wherein an operating shaft interlockingly coupled to a control rack of a fuel injection pump is rotatably supported by an engine case, and the control rack is forcibly movable to a stopping position by an action of a stopping solenoid on an operation arm provided for a projecting portion of the operating shaft in an integrally rotatable manner,
the operation arm includes a main body lever attached to the operating shaft, an upright lever unit that stands from a base of the main body lever along a longitudinal direction of a shaft of the operating shaft, and an input lever unit formed by bending a tip end of the upright lever unit, and
an extending-retracting rod of the stopping solenoid and the input lever unit of the operation arm are interlocked by fitting engagement between a pin provided for one of the extending-retracting rod and the operation arm with one of a hole and a cut-out portion provided for the other of the extending-retracting rod and the operation arm, the extending-retracting rod moving linearly and the input lever unit moving circularly, the one of the hole and the cut-out portion is in a shape elongated along a direction intersecting a movement trajectory of the other of the extending-retracting rod and the operation arm.

2. The engine stopping device according to claim 1 , wherein
the one of the hole and the cut-out portion is defined in the operation arm.

3. The engine stopping device according to claim 2 , wherein
the one of the hole and the cut-out portion is a cut-out defined along a direction perpendicular to the movement trajectory of the operation arm.

4. The engine stopping device according to claim 3 , wherein
the cut-out portion is provided in shape opening toward a shaft center of the operating shaft.

5. The engine stopping device according to claim 2 , wherein
the pin is provided on a tip end of the extending-retracting rod.

6. The engine stopping device according to claim 3 , wherein
the pin is provided on a tip end of the extending-retracting rod.

7. The engine stopping device according to claim 4 , wherein
the pin is provided on a tip end of the extending-retracting rod.

Assignees

• Kubota Kk

Inventors

• Tanaka Akira
• Oso Hiroki
• Tanaka Yoshinori
• Koyama Hideyuki
• Yamazaki Takahiro
• Okada Nobuyoshi

Classifications

• F02D2001/085

  using solenoids · CPC title

• F02D1/02

  not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered · CPC title

• F02M59/447

  means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine (combined with fuel pump regulating devices F02D) · CPC title

• F02D17/04 Primary

  rendering engines inoperative or idling, e.g. caused by abnormal conditions (dependent on lubricating conditions F01M1/22; dependent on cooling F01P5/14) · CPC title

• F02M59/44

  Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; {Pumps having transducers, e.g. to measure displacement of pump rack or piston} · CPC title