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1. WO2001063185 - REFRIGERATING CYCLE

Publication Number WO/2001/063185
Publication Date 30.08.2001
International Application No. PCT/JP2000/001081
International Filing Date 25.02.2000
Chapter 2 Demand Filed 06.12.2000
IPC
F25B 9/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
9Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point
F25B 41/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler
04Disposition of valves
F25B 41/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler
06Flow restrictors, e.g. capillary tubes; Disposition thereof
F25B 49/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
49Arrangement or mounting of control or safety devices
CPC
F25B 2309/061
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2309Gas cycle refrigeration machines
06Compression machines, plant or systems characterised by the refrigerant being carbon dioxide
061with cycle highest pressure above the supercritical pressure
F25B 2341/063
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2341Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
06Details of flow restrictors or expansion valves
063Feed forward expansion valves
F25B 2341/0661
F25B 2400/0411
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2400General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
04Refrigeration circuit bypassing means
0411for the expansion valve or capillary tube
F25B 2500/07
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2500Problems to be solved
07Exceeding a certain pressure value in a refrigeration component or cycle
F25B 2500/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2500Problems to be solved
26characterised by the startup of the refrigeration cycle
Applicants
  • ZEXEL VALEO CLIMATE CONTROL CORPORATION [JP]/[JP] (AllExceptUS)
  • SUZUKI, Nobuhiko [JP]/[JP] (UsOnly)
Inventors
  • SUZUKI, Nobuhiko
Agents
  • ONUKI, Kazuyasu
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) REFRIGERATING CYCLE
(FR) CYCLE FRIGORIFIQUE
Abstract
(EN)
A refrigerating cycle including a compressor, a radiator, an expander, an evaporator, and an internal heat exchanger for heat exchange between a refrigerant flowing out of the evaporator and the refrigerant in the supercritical zone, the supercritical fluid being used as a refrigerant, wherein the expander (5) is provided with a pressure reducing regulating valve (14) whose degree of opening is adjusted by the refrigerant temperature and refrigerant pressure on the inflow side, and a relief valve (15) that establishes communication between the inflow side and outflow side of the expander (5) when the refrigerant pressure on the inflow side exceeds a predetermined pressure. The pressure reducing regulating valve (14) is placed in a passageway through which the refrigerant flowing into the expander (5) flows to the relief valve (15). The relief valve (15) may be provided with the pressure reducing regulating valve so that when the refrigerant pressure on the inflow side exceeds a predetermined pressure, the relief valve is displaced integrally with the regulating valve to open the valve. This prevents an abnormal rise in pressure that occurs when the compressor is started from a high load stoppage state.
(FR)
Un cycle frigorifique comprenant un compresseur, un radiateur, un détendeur, un évaporateur, et un échangeur thermique interne pour l'échange thermique entre un réfrigérant s'écoulant de l'évaporateur et le réfrigérant de la zone supercritique, lequel fluide supercritique est utilisé comme réfrigérant. En l'occurrence, le détendeur (5) est pourvu, d'une part d'une vanne de détente régulatrice (14) dont le degré d'ouverture est assujetti à la température et à la pression du réfrigérant du côté arrivée, et d'autre part d'une soupape de détente (15) établissant la communication entre le côté arrivée et le côté départ du détendeur (5) lorsque la pression du réfrigérant du côté arrivée dépasse un seuil critique. La vanne de détente régulatrice (14) est montée dans un passage dans lequel le réfrigérant arrivant dans le détendeur (5) s'écoule vers la soupape de détente (15). Cette soupape de détente (15) peut équiper la vanne de détente régulatrice de façon que lorsque la pression du réfrigérant du côté arrivée dépasse un seuil critique, la soupape de détente se déplace intégralement avec la vanne régulatrice pour ouvrir la soupape. Ceci empêche une montée anormale de pression lorsqu'on lance le compresseur depuis le point d'arrêt en charge haute.
Latest bibliographic data on file with the International Bureau