Evaporator/expansion valve unit for use in automative air condit

Details Evaporator/expansion valve unit for use in automative air condit Evaporator/expansion valve unit for use in automative air condit

1996-10-02

1998-02-10

Tapolcal, William E.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

62225, 62525, F25B 4104

Patent

active

057157057

ABSTRACT:
An evaporator/expansion valve unit for use in an automotive air conditioning system, comprises an evaporator which includes first and second parallely extending elongate tanks and a plurality of flat hollow elements mounted on the first and second elongate tanks. The interior of each element is in a fluid communication with the interior of each tank. The first tank is formed with inlet and outlet openings. A block type expansion valve has a first passage which is closed when a spherical valve body abuts against a given part of the first passage against a certain force applied thereto and a second passage which has a temperature sensing means by which the certain force is varied in accordance with the temperature of a refrigerant flowing in the second passage. The first passage has an outlet opening connected to the inlet opening of the first tank. The second passage has an inlet opening connected to the outlet opening of the first tank. The expansion valve has the first tank directly mounted thereon.

REFERENCES:
patent: 4589265 (1986-05-01), Nozawa
patent: 4593539 (1986-06-01), Humpolik et al.
patent: 4712384 (1987-12-01), Crowe
patent: 4809518 (1989-03-01), Murayaya

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