Title:
AIR-CONDITIONER
Document Type and Number:
WIPO Patent Application WO/1996/011369
Kind Code:
A1
Abstract:
This invention aims at reducing the sound, which occurs in a dehumidification restriction unit during a dehumidification operation, of a flow of a refrigerant in an air-conditioner capable of carrying out a dehumidification operation while preventing a decrease in the room temperature by, especially, a refrigerating cycle. A user-side heat exchanger (3) is divided into two, and a dehumidification restriction unit (7) used during a dehumidification operation is provided therebetween, to form a refrigerating cycle. A dehumidification restriction unit (7) is formed by providing a main refrigerant passage (27) comprising a clearance between a valve rod (34) and a valve seat (36), and an auxiliary refrigerant passage (25) connecting together a high pressure side refrigerant passage (32) and a low pressure side refrigerant passage (28), a part of which auxiliary refrigerant passage (25) is provided in a valve rod (34) by utilizing the same. This enables the sound of flow of a refrigerant, which occurs when a refrigerant current flowing into a restriction portion of the dehumification restriction unit is a two-phase current, i.e. a gas-liquid phase current, to be reduced during a dehumidification operation.
More Like This:
| WO/2023/169648 | MULTI-PORT VALVE WITH PROPORTIONAL FLOW FUNCTION |
| JP5821649 | solenoid valve |
| JP2005331153 | THROTTLE VALVE DEVICE AND AIR CONDITIONER |
Inventors:
UMEDA TOMOMI
KANEKO TOMOMICHI
YOKOYAMA HIDENORI
MORIMOTO MOTOO
NAKAMURA HIROO
KANEKO TOMOMICHI
YOKOYAMA HIDENORI
MORIMOTO MOTOO
NAKAMURA HIROO
Application Number:
PCT/JP1995/002039
Publication Date:
April 18, 1996
Filing Date:
October 05, 1995
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
F16K47/02; F25B29/00; F25B5/04; F25B41/00; F25B41/06; (IPC1-7): F25B41/06
Foreign References:
| JPH05164432A | 1993-06-29 | |||
| JPH01152176U | 1989-10-20 | |||
| JPH04113864U | 1992-10-06 |
Download PDF:
Previous Patent: COOLING DEVICE WITH INTERMITTENTLY OPERATING COOLING UNIT
Next Patent: METHOD AND PLANT FOR LIQUEFYING NATURAL GAS
Next Patent: METHOD AND PLANT FOR LIQUEFYING NATURAL GAS