Title:
HEAT SOURCE UNIT AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/039087
Kind Code:
A1
Abstract:
A heat source unit (10) constitutes a refrigeration device (1) by being connected to utilization units (50, 60). The heat source unit (10) comprises a low-stage compression element (22, 23), a high-stage compression element (21), and a heat exchanger (13). A pressure switch (82, 83) is provided in a discharge pipe (22b, 23b) of the low-stage compression element (22, 23). The high-stage compression element (21) compresses the refrigerant discharged from the low-stage compression element (22, 23). When the pressure switch (82, 83) is activated and the low-stage compression element (22, 23) is stopped, the high-stage compression element is operated while keeping the low-stage compression element (22, 23) in the stopped state.
Inventors:
TAGUCHI SHUICHI (JP)
TAKEGAMI MASAAKI (JP)
TAKEGAMI MASAAKI (JP)
Application Number:
PCT/JP2020/025155
Publication Date:
March 04, 2021
Filing Date:
June 26, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; F25B1/10; F25B43/00
Foreign References:
| JPH04356665A | 1992-12-10 | |||
| JP2000161795A | 2000-06-16 | |||
| JPH04281160A | 1992-10-06 | |||
| JP2007327695A | 2007-12-20 |
Other References:
See also references of EP 3995757A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Download PDF: