Invention Grant
- Patent Title: Exhaust gas recirculation device
- Patent Title (中): 废气再循环装置
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Application No.: US12301344Application Date: 2007-05-15
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Publication No.: US07918216B2Publication Date: 2011-04-05
- Inventor: Andreas Gruner , Robert Sendor , Rudiger Knauss , Bernhard Schwalk
- Applicant: Andreas Gruner , Robert Sendor , Rudiger Knauss , Bernhard Schwalk
- Applicant Address: DE
- Assignee: Mahle International GmbH
- Current Assignee: Mahle International GmbH
- Current Assignee Address: DE
- Agency: Rader, Fishman & Grauer PLLC
- Priority: DE102006023855 20060519
- International Application: PCT/EP2007/054686 WO 20070515
- International Announcement: WO2007/135021 WO 20071129
- Main IPC: F02B47/08
- IPC: F02B47/08 ; F02B47/10

Abstract:
The invention relates to an exhaust gas recirculation device (5) for an internal combustion engine (1), especially in a motor vehicle, said device comprising an exhaust gas recirculation line (6) and an exhaust gas cooler (7) which is built into the exhaust gas recirculation line (6) and connected to a cooling circuit (8) operating by means of a liquid coolant. The exhaust gas recirculation cooler (7) comprises a cooler housing (9) which comprises at least one exhaust gas inlet (10), an exhaust gas outlet (11), a coolant inlet (12) and a coolant outlet (13), and through which a coolant flows. In order to be able to improve the adjustment of the cooling power, the exhaust gas recirculation cooler (7) contains, in the cooler housing (9) thereof, a first cooling tube arrangement (14) and a second cooling tube arrangement (15) which enables a larger heating flow between the exhaust gas and the coolant than the first cooling tube arrangement (14).
Public/Granted literature
- US20090188477A1 EXHAUST GAS RECIRCULATION DEVICE Public/Granted day:2009-07-30
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