Title:
COOLING APPARATUS
Document Type and Number:
Japanese Patent JPH1151503
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To eliminate an excess state of a refrigerant in a refrigerant circuit and realize stable cooling operation even in the case of any mode in a cooling apparatus which has both of an air-cooling condenser and a water-cooling condenser, and in which an air/water-cooling mode and water-cooling mode are selectively made possible. SOLUTION: This cooling apparatus 1 has a compressor 2, a condensing unit C, an expansion valve 10 and a cooler 11, which are connected to one another with pipings successively in the form of a ring. The condensing unit C is composed of an air-cooling condenser 3, which is air-cooled by a blower 4, and a water-cooling condenser 5, which is water-cooled by circulating water, and an air/water-cooling mode operating the blower 4 and a water-cooling mode stopping the operation of the blower 4 are selectively made practicable. The cooling apparatus includes a receiver tank 7 positioned between the condensing unit C and the expansion valve 10 and connected to both of them by pipings, a bypass piping 14 arranged in parallel with the receiver tank 7, and a three-way valve 6 for controlling whether a refrigerant discharged from the condensing unit C is caused to flow into the receiver tank 7 or to flow through the bypass piping 14. With the aid of this three-way valve 6, the refrigerant is caused to flow through the bypass piping 14 in the air/water-cooling mode, and it is caused to flow into the receiver tank 7 in the water-cooling mode.
Inventors:
NAKAMURA MITSUYOSHI
OKAJIMA MINORU
OKAJIMA MINORU
Application Number:
JP22087697A
Publication Date:
February 26, 1999
Filing Date:
August 01, 1997
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
F25B6/04; (IPC1-7): F25B6/04
Attorney, Agent or Firm:
Amasa Kei