Exhaust gas recirculation device

Details Exhaust gas recirculation device Exhaust gas recirculation device

2011-04-05

2011-04-05

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

Reexamination Certificate

active

07918216

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).

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patent: 2004-257366 (2004-09-01), None
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English abstract for JP-2006-29942.
English abstract for JP-2004-257366.
English abstract for DE-69720661.
English abstract for DE-19962863.
English abstract for DE-10344217.

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