公开(公告)号：US20190186386A1

公开(公告)日：2019-06-20

申请号：US16205855

申请日：2018-11-30

Applicant: KUBOTA Corporation

Inventor： Akira TANAKA ,  Hiroki OSO ,  Yoshinori TANAKA ,  Hideyuki KOYAMA ,  Takahiro YAMAZAKI ,  Nobuyoshi OKADA

IPC: F02D17/04 ,  F02M59/44

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.

公开(公告)号：US20200340388A1

公开(公告)日：2020-10-29

申请号：US16857245

申请日：2020-04-24

Applicant: KUBOTA Corporation

Inventor： Hiroki OSO ,  Nobuyoshi OKADA ,  Hideyuki KOYAMA ,  Yoshinori TANAKA ,  Kenji OKAMOTO

IPC: F01N13/16 ,  F01N13/18 ,  F01N13/10 ,  F02B37/02

Abstract: Provided is an exhaust system for an engine in which a fastening force of a fastener hardly decreases. An exhaust system for an engine includes: an exhaust passage component of ferrous metal; and a fastener that fastens the exhaust passage component to other parts, the exhaust passage component including a pressure receiving surface that receives a fastening force of the fastener. The oxide film of triiron tetraoxide is formed on the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an outer surface other than the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an inner surface of the exhaust passage component.