Title:
REFRIGERANT CIRCUIT OF FREEZING AIR CONDITIONER
Document Type and Number:
Japanese Patent JP3594770
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerant circuit of freezing air conditioner in which a liquid flowing-back phenomenon can be prevented, a compressor can be protected positively and a reliability of product can be improved.
SOLUTION: This refrigerant circuit of freezing air conditioner is constructed such that a bypassing pipeline 16 for bypassing a part of refrigerant from a location before an expansion valve 12 to a position where a thermo-sensitive cylinder 15 monitors a temperature of the refrigerant is arranged at a pipe 14, and the bypassing pipeline 16 is provided with capillaries 18, 19 in which temperature and pressure of the refrigerant passed through the bypassing pipeline 16 and having its temperature monitored by the thermo-sensitive cylinder 15 are made lower than the temperature and pressure of the refrigerant at a location where it is flowed through a pipe passage 14 and its temperature is monitored with the thermo-sensitive cylinder 15, and there is provided an external uniform pressure pipe 21 for applying a part of the refrigerant having its pressure reduced by the capillaries 18, 19 to the expansion valve 12.
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Inventors:
Kunio Misawa
Application Number:
JP19276497A
Publication Date:
December 02, 2004
Filing Date:
July 17, 1997
Export Citation:
Assignee:
Mitsubishi Electric Building Techno Service Co., Ltd.
International Classes:
F25B1/00; (IPC1-7): F25B1/00
Domestic Patent References:
| JP5172407A |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida