Heat exchange – Three non-communicating fluids
Reexamination Certificate
2001-03-15
2003-05-13
Bennett, Henry (Department: 3743)
Heat exchange
Three non-communicating fluids
C165S135000, C165S176000
Reexamination Certificate
active
06561264
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application is based on and incorporates herein by reference Japanese Patent Application Nos. 2000-79350 filed on Mar. 16, 2000, and 2001-67002 filed on Mar. 9, 2001.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a compound heat exchanger including a plurality of heat exchangers suitable for use in an automotive cooling module in which a condenser is integrated with a radiator.
2. Description of Related Art
JP-A-10-253276 discloses a compound heat exchanger in which a condenser is integrated with a radiator. In the conventional compound heat exchanger, fin of a condenser core portion and fin of a radiator core portion are integrally formed, and a louver arrangement of the condenser fin is different from a louver arrangement of the radiator fin for adjusting heat exchanging performances of the radiator and the condenser.
Here, the louver arrangement includes etching angle, louver etching length, width dimension, the number of louvers, and the like.
However, in the conventional compound heat exchanger, heat exchanging performance does not vary within the condenser or within the radiator. Thus, when required heat exchanging performances are different between at one area and another area within the condenser or within the radiator, the conventional compound heat exchanger cannot satisfy such a request.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a compound heat exchanger easily attaining required heat exchanging performance between at one area and another area within a heat-exchanging core.
According to the present invention, a first core portion to carries out a heat exchange between a first fluid and an external fluid. The first core portion includes a plurality of first tubes through which the first fluid flows and first cooling fins disposed between each pair of adjacent first tubes. A second core portion is disposed in series with the first core portion in an external fluid flow direction with a predetermined clearance therebetween, to carry out a heat exchange between a second fluid and the external fluid. The second core portion includes a plurality of second tubes through which the second fluid flows and second cooling fins disposed between each pair of adjacent second tubes. A connecting portion integrates each of first cooling fins and second cooling fins. At least one of the first cooling fins and the second cooling fins introduce different cooling performances between at one area and another area within at least one of the first core portion and the second core portion. Thus, the compound heat exchanger easily attains the required heat exchanging performance being different between at one area and another area within at least one of the first core portion and the second core portion.
REFERENCES:
patent: 4063431 (1977-12-01), Dankowski
patent: 5033540 (1991-07-01), Tategami et al.
patent: 5046554 (1991-09-01), Iwasaki et al.
patent: 5176200 (1993-01-01), Shinmura
patent: 5366005 (1994-11-01), Kadle
patent: 5566748 (1996-10-01), Christensen
patent: 5992514 (1999-11-01), Sugimoto et al.
patent: 6170565 (2001-01-01), Nishishita
patent: 6173766 (2001-01-01), Nakamura et al.
patent: 6209628 (2001-04-01), Sugimoto et al.
patent: 6305465 (2001-10-01), Uchikawa et al.
patent: 6357518 (2002-03-01), Sugimoto et al.
patent: 0 866 298 (1998-09-01), None
Kokubunji Hiroshi
Ozaki Tatsuo
Bennett Henry
Denso Corporation
Harness Dickey & Pierce PLC
McKinnon Terrell
LandOfFree
Compound heat exhanger having cooling fins introducing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compound heat exhanger having cooling fins introducing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound heat exhanger having cooling fins introducing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3024418