Heat exchanger

Details Heat exchanger Heat exchanger

1997-11-20

1999-08-10

Leo, Leonard R.

Heat exchange

Side-by-side tubular structures or tube sections

With manifold type header or header plate

165153, 165176, F28F 922, F28D 103

Patent

active

059343672

ABSTRACT:
A two path flow, laminated-type heat exchanger for an automotive refrigerant circuit includes a plurality of heat transfer tubes, a plurality of fins, and a tank. The tank is divided into three chambers. The second and third chambers are in fluid communication with the heat transfer tubes, each of which tubes has an interior U-shaped flow path. A plurality of holes of different radii or one diamond-shaped hole or a wall dividing the first chamber into two sub-chambers may be provided between the first chamber and the second chamber. The fluid enters through an inlet orifice and flows into the first chamber. Imbalances in the fluid's mass-flow rate along the length of the tank are leveled as the fluid passes from the first chamber to the second chamber. The fluid now possessing a leveled mass-flow rate enters the heat transfer tubes. Thus, the fluid in every heat transfer tube is leveled. The fluid flowing within each of heat transfer tubes then is collected in the third chamber, and exits through the outlet orifice. Therefore, the surface temperature of the heat exchanger is balanced during operation.

REFERENCES:
patent: 4458750 (1984-07-01), Huber
patent: 5241839 (1993-09-01), Hughes
patent: 5415223 (1995-05-01), Reavis et al.

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