公开(公告)号：US12234786B2

公开(公告)日：2025-02-25

申请号：US18663584

申请日：2024-05-14

Applicant: KUBOTA CORPORATION

Inventor： Michisuke Iga ,  Tomotaka Tanaka ,  Kosuke Aoki ,  Hiroyuki Kawasoe ,  Kengo Hidaka

IPC: F02D41/22 ,  B60K17/02 ,  B60K17/08 ,  F02D41/00 ,  F02D41/40

Abstract: Provided is an engine control device and an engine device that enable stable self-travelling of the engine in a limp home mode. The engine control device includes a revolution speed detection unit that detects revolution speed of the engine, and an arithmetic unit that calculates an opening of a throttle valve opened by an electronic throttle mechanism, and an injection amount of fuel injected by injectors. In an operation of the engine in the limp home mode, in a case where the revolution speed of the engine detected by the revolution speed detection unit exceeds a predetermined limiting value, the arithmetic unit performs an operation to suppress injection of the fuel to be injected by the injectors.

公开(公告)号：US10287953B2

公开(公告)日：2019-05-14

申请号：US15579761

申请日：2016-03-01

Applicant: KUBOTA Corporation

Inventor： Yuki Ozaki ,  Naoki Inoue ,  Tamotsu Ohashi ,  Kengo Hidaka ,  Hiroyuki Kawasoe ,  Masaru Hayashida ,  Shunji Okano ,  Michisuke Iga

IPC: F01N3/28 ,  B01D53/94 ,  F01N3/10 ,  F01N13/10 ,  B01J23/86 ,  B01J35/04 ,  F01N13/16

Abstract: An exhaust purifying apparatus is provided, that can be manufactured at low manufacturing costs and is capable exhibiting high exhaust purifying performance. The exhaust purifying apparatus includes an exhaust passage, and an exhaust purifying member disposed in the exhaust passage. The exhaust purifying member is made of stainless steel. The surface of the stainless steel material is not covered with a catalyst coat containing a catalyst component, so that the surface of the stainless steel material is brought into contact with exhaust. The exhaust purifying member is made of precipitation hardening stainless steel and/or austenitic stainless steel.