Invention Grant
- Patent Title: Diesel engine with reduced particulate material accumulation and related method
- Patent Title (中): 柴油发动机减少颗粒物积累和相关方法
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Application No.: US14477968Application Date: 2014-09-05
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Publication No.: US09458753B2Publication Date: 2016-10-04
- Inventor: Kentarou Kita , Tamotsu Kuno , Katsushi Inoue , Yuuji Takemura , Yuuki Ishii , Yusuke Komemushi , Tomoya Hasegawa
- Applicant: KUBOTA Corporation
- Applicant Address: JP Osaka-shi, Osaka
- Assignee: KUBOTA Corporation
- Current Assignee: KUBOTA Corporation
- Current Assignee Address: JP Osaka-shi, Osaka
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: JP2013-203012 20130930
- Main IPC: F02D43/00
- IPC: F02D43/00 ; F01N9/00 ; F01N3/023 ; F02D41/02 ; F02D41/14 ; F02D41/00 ; F02D11/10
Abstract:
The present invention provides a diesel engine capable of preventing a PM accumulation amount from increasing excessively. If DOC inlet exhaust gas temperature (“IEGT”) does not reach a predetermined value T0, a control unit carries out air intake amount feedback control (“AIAFC”), and a target value of intake throttling is set to a predetermined air intake amount. If the DPF regenerating processing is not started even if elapsed time reaches a predetermined value t after AIAFC is started in a state where the DOC IEGT does not reach the predetermined value T0, the control unit changes AIAFC to exhaust gas temperature feedback control (“EGTFC”). In EGTFC, the control unit changes a target value of intake throttling to a predetermined DOC IEGT T0. If application of a load exceeding a predetermined amount is detected before the DOC IEGT reaches the predetermined value T0, the control unit returns EGTFC to AIAFC.
Public/Granted literature
- US20150089925A1 DIESEL ENGINE WITH REDUCED PARTICULATE MATERIAL ACCUMULATION AND RELATED METHOD Public/Granted day:2015-04-02
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