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1. (WO2019044353) REFRIGERATION CYCLE
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Pub. No.: WO/2019/044353 International Application No.: PCT/JP2018/028966
Publication Date: 07.03.2019 International Filing Date: 02.08.2018
IPC:
F25B 5/02 (2006.01) ,B60H 1/22 (2006.01) ,F25B 1/00 (2006.01) ,F25B 6/04 (2006.01) ,F25B 49/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
5
Compression machines, plant, or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
02
arranged in parallel
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
H
ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
1
Heating, cooling or ventilating devices
22
the heat being derived otherwise than from the propulsion plant
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
1
Compression machines, plant or systems with non-reversible cycle
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
6
Compression machines, plant, or systems, with several condenser circuits
04
arranged in series
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
49
Arrangement or mounting of control or safety devices
02
for compression type machines, plant or systems
Applicants:
株式会社デンソー DENSO CORPORATION [JP/JP]; 愛知県刈谷市昭和町1丁目1番地 1-1, Showa-cho, Kariya-city Aichi 4488661, JP
Inventors:
牧本 直也 MAKIMOTO Naoya; JP
加藤 吉毅 KATO Yoshiki; JP
Agent:
金 順姫 JIN Shunji; JP
Priority Data:
2017-16662631.08.2017JP
Title (EN) REFRIGERATION CYCLE
(FR) CYCLE FRIGORIFIQUE
(JA) 冷凍サイクル装置
Abstract:
(EN) A refrigeration cycle device wherein, in an operation mode in which a refrigerant is made to flow to an indoor evaporator (16) and blown air is cooled by the indoor evaporator, the throttle opening characteristic of an expansion valve (15a) for cooling that is configured from a mechanical mechanism is set such that the refrigerant at the outlet side of the indoor evaporator is in a gas-phase state. In an operation mode in which blown air is heated by using as a heat source heat absorbed from outside air by an outdoor evaporator (18), the throttle opening characteristic of a valve (15b) for heat absorption that is configured from a mechanical mechanism is set such that the refrigerant at the outlet side of the outdoor evaporator is in a gas-liquid two-phase state. Thus, in the operation mode in which the blown air is heated, it is possible to suppress the accumulation of refrigerant oil in the outdoor evaporator. Furthermore, the state of the refrigerant flowing from the evaporators can be adjusted appropriately in accordance with the operation mode without increasing the complexity of the cycle configuration.
(FR) L'invention concerne un dispositif à cycle frigorifique permettant le réglage, dans un mode de fonctionnement dans lequel un fluide frigorigène est amené à couler vers un évaporateur intérieur (16) et de l'air soufflé est refroidi par l'évaporateur intérieur, de la caractéristique d'ouverture des gaz d'un détendeur (15a) de refroidissement conçu à partir d'un mécanisme mécanique, de sorte que le fluide frigorigène au niveau du côté de sortie de l'évaporateur intérieur soit en phase gazeuse. Dans un mode de fonctionnement dans lequel l'air soufflé est chauffé au moyen de l'utilisation, en tant que source de chaleur, de la chaleur absorbée de l'air extérieur par un évaporateur extérieur (18), la caractéristique d'ouverture des gaz d'une soupape (15b) d'absorption de chaleur, conçue à partir d'un mécanisme mécanique, est réglée de sorte que le fluide frigorigène au niveau du côté de sortie de l'évaporateur extérieur soit dans un état diphasique gaz-liquide. Ainsi, dans le mode de fonctionnement dans lequel l'air soufflé est chauffé, la suppression de l'accumulation d'huile réfrigérante dans l'évaporateur extérieur est possible. En outre, l'état du fluide frigorigène coulant à partir des évaporateurs peut être réglé de manière appropriée conformément au mode de fonctionnement, sans augmenter la complexité de la configuration du cycle.
(JA) 冷凍サイクル装置において、室内蒸発器(16)へ冷媒を流入させて、室内蒸発器にて送風空気を冷却する運転モードでは、室内蒸発器の出口側の冷媒が気相状態となるように、機械的機構で構成された冷却用膨張弁(15a)の絞り開度特性を設定しておく。室外蒸発器(18)にて外気から吸熱した熱を熱源として送風空気を加熱する運転モードでは、室外蒸発器の出口側の冷媒が気液二相状態となるように、機械的機構で構成された吸熱用膨張弁(15b)の絞り開度特性を設定しておく。これにより、送風空気を加熱する運転モードでは、室外蒸発器内に冷凍機油が滞留してしまうことを抑制する。サイクル構成の複雑化を招くことなく、運転モードに応じて蒸発器から流出する冷媒の状態を適切に調整できる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)