Global Patent Index - EP 1162414 A1

EP 1162414 A1 20011212 - REFRIGERANT SUPERCOOLING CIRCUIT

Title (en)

REFRIGERANT SUPERCOOLING CIRCUIT

Title (de)

KREISLAUF MIT KÄLTEMITTELUNTERKÜHLUNG

Title (fr)

CIRCUIT DE REFROIDISSEMENT A REFRIGERANT

Publication

EP 1162414 A1 20011212 (EN)

Application

EP 99937013 A 19990809

Priority

  • JP 9904326 W 19990809
  • JP 3874699 A 19990217
  • JP 8645399 A 19990329
  • JP 8645499 A 19990329
  • JP 11493699 A 19990422

Abstract (en)

A refrigerant supercooling circuit comprising a receiver (5) for retention of a liquid-phase refrigerant installed in a refrigerant line (23) connecting a first expansion valve (45) and a plurality of second expansion valves (71), an extraction line (61) for taking out the liquid-phase refrigerant in the receiver (5), a third expansion valve (62) in the extraction line, the portion of the extraction line (61) downstream of the third expansion valve (62) being passed through the receiver (5) or through a supercooling tank (63), the arrangement being such that the degree of opening of the first expansion valve (45) is controlled either according to the refrigerant pressure (P1) on a refrigerant line (21) connecting the delivery side of a compressor (2) and a four-way valve (3), or according to the degree of supercooling (SC) in the outlet of an outdoor heat exchanger (4), or according to the pressure difference across the first expansion valve (45). <IMAGE>

IPC 1-7

F25B 13/00; F25B 1/00; F25B 5/00

IPC 8 full level

F25B 13/00 (2006.01); F25B 5/02 (2006.01); F25B 27/00 (2006.01); F25B 40/02 (2006.01)

CPC (source: EP)

F25B 13/00 (2013.01); F25B 41/385 (2021.01); F25B 41/39 (2021.01); F25B 5/02 (2013.01); F25B 27/00 (2013.01); F25B 40/02 (2013.01); F25B 2313/023 (2013.01); F25B 2313/025 (2013.01); F25B 2313/0311 (2013.01); F25B 2313/0313 (2013.01); F25B 2313/0315 (2013.01); F25B 2400/075 (2013.01); F25B 2400/13 (2013.01); F25B 2400/16 (2013.01); F25B 2700/193 (2013.01); F25B 2700/2115 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 1162414 A1 20011212; EP 1162414 A4 20021002; EP 1162414 B1 20060607; AT E329213 T1 20060615; DE 69931816 D1 20060720; ES 2265187 T3 20070201; PT 1162414 E 20060929; WO 0049346 A1 20000824

DOCDB simple family (application)

EP 99937013 A 19990809; AT 99937013 T 19990809; DE 69931816 T 19990809; ES 99937013 T 19990809; JP 9904326 W 19990809; PT 99937013 T 19990809