Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2017150689
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air conditioner which prevents occurrence of liquid back of a compressor even when a low-capability compressor is operated with low output during a heating operation.SOLUTION: An air conditioner performs air conditioning in a room with an indoor unit 4 by connecting a GHP outdoor unit 2 provided with a GHP compressor 13 driven by an engine and an EHP outdoor unit 3 provided with an EHP compressor 62 driven by a commercial power supply, respectively to the indoor unit 4 via an inter-unit piping 5, and operating the GHP outdoor unit 2 and the EHP outdoor unit 3. The air conditioner is provided with a system control part 103, and the system control part 103 controls lowest driving frequency of the EHP compressor 62 to prevent occurrence of liquid back according to an outdoor temperature, when operating the GHP compressor 13 driven by the engine with appropriate capability and also operating the EHP compressor 62 driven by the commercial power supply with low output.SELECTED DRAWING: Figure 1

Inventors:
OKAWA KAZUNOBU
MATSUMOTO KENZO
SAITO SHINGO
MASUDA TETSUYA
Application Number:
JP2016031328A
Publication Date:
August 31, 2017
Filing Date:
February 22, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PANASONIC IP MAN CORP
International Classes:
F25B1/00; F24F1/68; F24F11/02; F25B13/00; F25B27/00
Domestic Patent References:
JP2011075162A2011-04-14
JPH01277160A1989-11-07
Attorney, Agent or Firm:
Patent Business Corporation Kushibuchi International Patent Office