Title:
FREEZER
Document Type and Number:
Japanese Patent JP3228135
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress the rise of high pressure without fail by getting the differential pressure between the upstream end and the downstream end of an auxiliary line, to a freezer equipped pith an auxiliary heat exchanger for suppressing the rise of high pressure.
SOLUTION: The first and second branch lines 10a and 10b equipped with outdoor electric expansion valves 5 and 6 and outdoor heat exchangers 3 and 4 are connected in parallel. The outdoor heat exchangers of each line are arranged in individual air passages, and individual outdoor fans F1 and F2 are provided in opposition to each outdoor heat exchanger. The upstream end of an auxiliary line is connected to the discharge side of a compressor 1, and the downstream end is connected to the section between the outdoor electric expansion valve and the outdoor heat exchanger of the first branch line. At rise of high pressure, the overhead of the outdoor electric expansion valve of the first branch line is controlled, and the outdoor electric expansion valve of the second branch line is blocked. The outdoor fan opposite to the outdoor heat exchanger of the first line is set to a small quantity of wind, and the outdoor fan opposite to the outdoor heat exchanger and the auxiliary heat exchanger of the second line is set to a large quantity of wind.
Inventors:
Hiromune Matsuoka
Masahiro Honda
Masahiro Honda
Application Number:
JP19338696A
Publication Date:
November 12, 2001
Filing Date:
July 23, 1996
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B1/00; F25B5/02; F25B6/02; (IPC1-7): F25B1/00
Domestic Patent References:
| JP536736B2 |
Attorney, Agent or Firm:
Hiroshi Maeda (2 outside)