Title:
AIR-CONDITIONING APPARATUS
Document Type and Number:
Japanese Patent JP2021021509
Kind Code:
A
Abstract:
To provide an air-conditioning apparatus in which a compressor driven by a gas engine and a compressor driven by an electric motor are connected in parallel, the apparatus enabling a highly efficient heating operation even in the case of a low outside air temperature.SOLUTION: A bypass pipe 118 is provided connecting a second compressor suction pipe 114 of a second compressor 102 with a refrigerant pipe 110. In the bypass pipe 118, an exhaust heat recovery decompression device 119 and an exhaust heat recovery heat exchanger 120 are provided in order from the refrigerant pipe 110. Also included are: a cooling water circuit 400 annularly connecting a gas engine 103, the exhaust heat recovery heat exchanger 120 and a radiator 107, and allowing cooling water to circulate; and temperature detecting means 131 to detect temperature of the cooling water. In starting a heating operation, a first compressor 101 is driven first and, after the temperature of the temperature detecting means 131 rises to a predetermined temperature, the second compressor 102 is driven.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
MASUDA TETSUYA
MATSUI MASARU
HIROTA MASANORI
MATSUI MASARU
HIROTA MASANORI
Application Number:
JP2019136931A
Publication Date:
February 18, 2021
Filing Date:
July 25, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F24F11/86; F24F1/44; F24F11/46; F24F11/84; F24F11/87; F25B1/00; F25B5/02; F25B27/00; F25B27/02
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura