Invention Grant
- Patent Title: Method of controlling operation of an engine having both an exhaust fluid recirculation apparatus and an exhaust fluid treatment apparatus
- Patent Title (中): 控制具有排气流体再循环装置和排气流体处理装置的发动机的运转的方法
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Application No.: US14416239Application Date: 2013-07-24
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Publication No.: US09488089B2Publication Date: 2016-11-08
- Inventor: Antony Eager
- Applicant: Perkins Engines Company Limited
- Applicant Address: GB Peterborough
- Assignee: Perkins Engines Company Limited
- Current Assignee: Perkins Engines Company Limited
- Current Assignee Address: GB Peterborough
- Priority: GB1213462.3 20120727
- International Application: PCT/GB2013/051978 WO 20130724
- International Announcement: WO2014/016595 WO 20140130
- Main IPC: F02M25/06
- IPC: F02M25/06 ; F01N3/00 ; F01N3/10 ; F01N3/36 ; F02D41/00 ; F02D41/02 ; F02D41/40 ; F01N3/025 ; F01N9/00 ; F01N11/00
Abstract:
In an engine unit including a combustion unit and an exhaust fluid recirculation apparatus where unburnt fuel is provided to an exhaust flow treatment apparatus for combustion, it may be desirable to prevent unburnt fuel from entering the exhaust fluid recirculation apparatus. A method of controlling operation of an engine unit includes confirming that a valve of the exhaust flow recirculation apparatus is closed, and overriding a control signal for controlling the valve in order to ensure that the valve remains closed before injecting fuel upstream of the valve for combustion in the exhaust fluid treatment apparatus.
Public/Granted literature
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