Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/060384
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a refrigeration device with which it is possible to prevent the backflow of liquid during pressure equalization in a refrigerant circuit when the refrigerant circuit is started up. An air-conditioning device (1) is equipped with a refrigerant circuit (2) formed by sequentially connecting a variable capacity type compressor (11), an outside heat exchanger (13), a first electric expansion valve (14), a receiver (15), a second electric expansion valve (16), and an indoor heat exchanger (17). The air-conditioning device (1) is equipped with a four-way changeover valve (12) and a control device (5). The four-way changeover valve (12) changes the flow direction of a refrigerant flowing in the refrigerant circuit (2). The control device (5) controls the open/closed state of the first electric expansion valve (14) and the second electric expansion valve (16). When the air-conditioning device (1) starts up, the control device (5) determines whether the first electric expansion valve (14) or the second electric expansion valve (16) is the high-pressure-side electric valve, that is, determines which valve is located in the high-pressure section of the refrigerant circuit (2), and then places the high-pressure-side electric valve in the fully open state.

More Like This:
JP3361109[Title of Invention] Heat Storage Refrigerator / Refrigerator
JPH0849933REGENERATIVE AIR-CONDITIONER
JPS62218749DEFROSTING CONTROLLER FOR AIR-CONDITIONING MACHINE
Inventors:
YUMOTO YOSHIAKI
Application Number:
PCT/JP2014/078214
Publication Date:
April 30, 2015
Filing Date:
October 23, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B13/00; F25B1/00
Foreign References:
JP2001336850A2001-12-07
JP2002106980A2002-04-10
JP2003028522A2003-01-29
JP2002081769A2002-03-22
JP2004003717A2004-01-08
JP2001355933A2001-12-26
JPH07269972A1995-10-20
JPH0972620A1997-03-18
Other References:
See also references of EP 3062041A4
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: CLEANING WORK DEVICE

Next Patent: LASER DEVICE, AND EXPOSURE DEVICE AND INSPECTION DEVICE PROVIDED WITH LASER DEVICE