Invention Grant
- Patent Title: Internal exhaust recirculation method for an internal combustion engine
- Patent Title (中): 内燃机的内部排气再循环方法
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Application No.: US10550849Application Date: 2004-04-14
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Publication No.: US07249597B2Publication Date: 2007-07-31
- Inventor: Jochen Müller , Bernd Kircher , Markus Duesmann , Enno Lohse
- Applicant: Jochen Müller , Bernd Kircher , Markus Duesmann , Enno Lohse
- Applicant Address: DE Aachen
- Assignee: FEV Motorentechnik, GmbH
- Current Assignee: FEV Motorentechnik, GmbH
- Current Assignee Address: DE Aachen
- Agency: Townsend and Townsend and Crew LLP
- Priority: DE10317685 20030417
- International Application: PCT/EP2004/003903 WO 20040414
- International Announcement: WO2004/092561 WO 20041028
- Main IPC: F02B25/07
- IPC: F02B25/07 ; F02B25/00

Abstract:
The invention relates to the internal exhaust-gas recirculation in an internal combustion engine with gas exchange valves periodically controlled by a camshaft (22) in accordance with the four-stroke principle, in which, during the gas exchange exhausting of exhaust gas from the respective cylinder (1) into the exhaust duct (5), an intake valve (2) associated with the respective cylinder (1) is open in a crank angle range after top dead center of the ignition of the gas mixture present in the cylinder (1), in order to exhaust part of the exhaust gas into an intake duct (3), so that during the next gas exchange intake both fresh gas and exhaust gas are taken in from the intake duct (3), the respective intake valve (2) being actuated during the gas exchange exhausting independently of the periodic gas exchange intake, and the additional opening of the respective intake valve (2) being carried out in the range from 110 to 150% of the opening angle of the start of opening of the exhaust duct (5) by the exhaust valve (4).
Public/Granted literature
- US20060102157A1 Internal exhaust recirculation method for an internal combustion engine Public/Granted day:2006-05-18
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