Liquid filter/heat exchanger unit

Details Liquid filter/heat exchanger unit Liquid filter/heat exchanger unit

2006-02-07

2006-02-07

Popovics, Robert James (Department: 1724)

Liquid purification or separation

Automatic control

Thermal

C210S167150, C210S175000, C210S186000, C210S254000, C210SDIG017, C165S279000, C165S051000, C165S119000, C165S916000, C236S034500, C184S006220, C184S006240, C184S104200, C123S041330, C123S1960AB, C123S1960AB

Reexamination Certificate

active

06994784

ABSTRACT:
A liquid filter/heat exchanger unit including a liquid filter and a heat exchanger, the liquid filter having a filter element in a filter housing. To bypass the heat exchanger, there is a bypass connecting the heat exchanger inlet directly to the unfiltered side of the filter element. A switching element is provided to control the liquid flow into the heat exchanger or into the bypass. The switching element is a bimetal element which is in a position directing the liquid flow into the bypass at a temperature below a switching temperature.

REFERENCES:
patent: 2729339 (1956-01-01), McCoy
patent: 3743011 (1973-07-01), Frost
patent: 4638856 (1987-01-01), Yamanaka et al.
patent: 4669532 (1987-06-01), Tejima et al.
patent: 4783271 (1988-11-01), Silverwater
patent: 5014775 (1991-05-01), Watanabe
patent: 5236043 (1993-08-01), Armbruster et al.
patent: 5406910 (1995-04-01), Wallin
patent: 5575329 (1996-11-01), So et al.
patent: 2004/0182566 (2004-09-01), Jainek

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