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Title:
EXHAUST GAS HEAT EXCHANGER AND SEALING DEVICE FOR THE SAME
Document Type and Number:
WIPO Patent Application WO2004083758
Kind Code:
A3
Abstract:
The invention relates to exhaust gas heat exchangers, as they are generally known, and to a sealing device which is especially suitable for using in exhaust gas heat exchangers. The inventive exhaust gas heat exchanger (10) comprises connection points (15) for the exhaust gas flow, for connecting the exhaust gas heat exchanger both to an exhaust gas supply line (16) for supplying a hot exhaust gas and an exhaust gas withdrawal line (17) for withdrawing the exhaust gas flow cooled in the exhaust gas heat exchanger. The exhaust gas flow flows through the exhaust gas heat exchanger (10) in a bundle of exhaust gas guiding pipes (21) in a flow direction. A coolant also flows through the exhaust gas heat exchanger (10), in a coolant flow (12). To this end, the exhaust gas heat exchanger is provided with at least one coolant supply connection (18) and at least one coolant withdrawal connection (19). The coolant is guided in a coolant channel in the exhaust gas heat exchanger (10), inside which it flows around the bundle of exhaust gas guiding pipes (21). According to the invention, the coolant channel comprises at least two regions which differ in terms of the flow direction of the exhaust gas flow by divergent flow directions of the coolant (27).

Inventors:
LORENZ GOETZ (DE)
KOLLET TIBOR (HU)
MERCZ JOZSEF (DE)
STREBL LASZLO (HU)
TOTH GYULA (HU)
Application Number:
EP2004002803W
Publication Date:
April 14, 2005
Filing Date:
March 18, 2004
Export Citation:
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Assignee:
BEHR GMBH & CO KG (DE)
LORENZ GOETZ (DE)
KOLLET TIBOR (HU)
MERCZ JOZSEF (DE)
STREBL LASZLO (HU)
TOTH GYULA (HU)
International Classes:
F02M25/07; F28D7/00; F28D7/16; F28F9/02; (IPC1-7): F02M25/07; F28D7/00; F28F9/02
Foreign References:
EP1091113A22001-04-11
EP0205205A11986-12-17
DE907899C1954-03-29
US3948315A1976-04-06
US4564065A1986-01-14
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 05 3 May 2002 (2002-05-03)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10)
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14)
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