Title:
HEAT PUMP AND DEHUMIDIFYING AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2003/104727
Kind Code:
A1
Abstract:
A heat pump, comprising a refrigerant booster (260), a refrigerant condenser (220) for heating high heat source fluid (B), a refrigerant evaporator (210) for cooling low heat source fluid (A), a heat exchange means (300) installed between the condenser (220) and the evaporator (210), performing the evaporation and condensation of the refrigerant at an intermediate pressure between the condensing pressure of the condenser (220) and the evaporating pressure of the evaporator (210), cooling the low heat source fluid (A) by an intermediate pressure evaporation, and heating the low heat source fluid (A) by an intermediate pressure condensation, a first restriction mechanism (292) installed between the heat exchange means (300) and the evaporator (210) and allowing to increase and decrease the degree of the restriction thereof, a second restriction mechanism (291) installed between the condenser (220) and the heat exchange means (300), and a first controller (501) increasing and decreasing the flow of the refrigerant passing the evaporator (210) according to an increase and a decrease in the degree of the restriction of the first restriction mechanism (292), wherein the low heat source fluid (A) is formed so as to be cooled by the heat exchange means (300), cooled by the evaporator (210), and heated by the heat exchange means (300) in this order.
Inventors:
MAEDA KENSAKU (JP)
Application Number:
PCT/JP2003/007328
Publication Date:
December 18, 2003
Filing Date:
June 10, 2003
Export Citation:
Assignee:
EBARA CORP (JP)
MAEDA KENSAKU (JP)
MAEDA KENSAKU (JP)
International Classes:
F25B29/00; F24F3/153; F25B5/04; F25B39/00; F25B49/02; (IPC1-7): F25B29/00
Domestic Patent References:
| WO2003006890A1 | 2003-01-23 |
Foreign References:
| EP1231438A1 | 2002-08-14 | |||
| US5031411A | 1991-07-16 | |||
| US4665712A | 1987-05-19 | |||
| JP2002340397A | 2002-11-27 | |||
| JP2002061991A | 2002-02-28 | |||
| JPH07294052A | 1995-11-10 |
Attorney, Agent or Firm:
Watanabe, Isamu (5-8 Nishi-Shinjuku 7-chom, Shinjuku-ku Tokyo, JP)
Download PDF:
Previous Patent: IMPROVED THERMOELECTRIC POWER GENERATION SYSTEMS
Next Patent: PACKAGING FOR ICE IN CUBES
Next Patent: PACKAGING FOR ICE IN CUBES