Saddle type heat exchanger

Details Saddle type heat exchanger Saddle type heat exchanger

1995-06-13

1996-04-23

Ford, John K.

Heat exchange

Flexible envelope or cover type

165 86, 165905, 165169, 417366, 417370, 45412, 45413, 310 54, 310 64, F28F 700, H02K 900, H02K 902, F04B 1700

Patent

active

055094635

ABSTRACT:
A heat exchanger for use in combination with motor driven fluid pumps of the type having a motor with an outwardly curved upper surface. The heat exchanger has an arcuate heat exchange jacket formed of an inner wall, an outer wall, and a spacer frame sealed therebetween which has an open center section defining a hollow enclosed cavity. The jacket is configured to engage the exterior surface of the pump motor for maintaining heat exchange contact between the pump motor and the cavity. The jacket has a fluid inlet and one or more outlets. A venturi cross having a pair of tubular extensions may be connected to the intake port of the pump with one extension connected to the jacket inlet and the other extension to the jacket outlet to subject the jacket to negative pressure created by the venturi cross to draw a portion of the fluid through the jacket cavity and recirculate it through the pump. Alternatively, a cross having a pair of tubular extensions may be connected to the intake port of the pump and both extensions connected to a pair of jacket outlets in combination with a supply tee connected to the high pressure discharge conduit and to the jacket inlet to subject the jacket to the pressure differential between the pump intake port and the pump discharge port to pass a portion of the pressurized fluid through the jacket cavity and recirculate it through the pump. The supply tee may contain a thermostat to open and close fluid flow through the jacket.

REFERENCES:
patent: 2763214 (1956-09-01), White
patent: 2784672 (1957-03-01), Wallace
patent: 2913988 (1959-11-01), White
patent: 3127530 (1964-03-01), White
patent: 3478689 (1969-11-01), Ball
patent: 4213498 (1980-07-01), Vandenbossche
patent: 4854373 (1989-08-01), Williams
patent: 4858254 (1989-08-01), Popovich et al.
patent: 4892464 (1990-01-01), Schydlo
patent: 5038853 (1991-08-01), Callaway, Sr. et al.

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