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公开(公告)号：US11959677B2
公开(公告)日：2024-04-16
申请号：US17423335
申请日：2019-04-09
Applicant: Mitsubishi Electric Corporation
Inventor： Takanori Yashiro , Hiroshi Sata , Yusuke Arii
IPC: F25B49/02
CPC classification number: F25B49/02 , F25B2400/01 , F25B2400/0409 , F25B2400/0411 , F25B2400/0417 , F25B2500/222 , F25B2500/24 , F25B2600/05 , F25B2600/2511 , F25B2700/1931 , F25B2700/1933 , F25B2700/2101
Abstract: A refrigeration apparatus includes: a refrigerant circuit through which refrigerant circulates; a controller to execute a plurality of refrigerant shortage sensing functions of sensing a shortage of an amount of the refrigerant; and an input device through which an operation mode to be set is input into the controller. The operation mode includes: a first mode in which energy-saving performance is emphasized; and a second mode in which the refrigeration apparatus is permitted to operate in a range in which reliability is ensured. In accordance with the operation mode set through the input device, the controller determines which one of sensing results obtained by the refrigerant shortage sensing functions is enabled and which one of sensing results obtained by the refrigerant shortage sensing functions is disabled. When a sensing result determined to be enabled shows a refrigerant shortage, the controller gives a notification about the refrigerant shortage.
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公开(公告)号：US10006725B2
公开(公告)日：2018-06-26
申请号：US14374762
申请日：2013-02-08
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor： Satoshi Nikaido , Takaaki Miura , Minoru Matsuo , Koki Tateishi , Toshiaki Ouchi
CPC classification number: F28F27/00 , F25B1/10 , F25B40/02 , F25B41/043 , F25B49/022 , F25B2339/047 , F25B2400/0403 , F25B2400/0409 , F25B2400/0411 , F25B2400/0417 , F25B2400/13 , F25B2600/2501 , F25B2700/195 , F25B2700/197 , F25B2700/21161 , F25B2700/21163 , F25B2700/21172 , F25B2700/21173
Abstract: To swiftly start, at the time of power recovery after a power failure, heat source machines, the number of which is equal to the number of machines before the power failure, without including an uninterruptible power supply in an apparatus for controlling the number of machines that is adapted to control the number of heat source machines. There is provided a heat source system, in which a host control device (20) includes a nonvolatile first storage unit (22) that stores the number of heat source machines in operation immediately before the power failure. When power is recovered, control on the number of heat source machines at the time of power recovery is performed in accordance with the number of heat source machines stored in the first storage unit (22).
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公开(公告)号：US20170297415A1
公开(公告)日：2017-10-19
申请号：US15636243
申请日：2017-06-28
Applicant: SANDEN HOLDINGS CORPORATION
Inventor： Hiroshi SATOU , Megumi SHIGETA
CPC classification number: B60H1/00921 , B60H1/20 , B60H1/2215 , B60H1/2221 , B60H1/3204 , B60H1/3223 , B60H3/024 , B60H2001/00928 , B60H2001/00949 , B60H2001/00957 , F25B5/02 , F25B29/003 , F25B30/02 , F25B40/00 , F25B40/02 , F25B49/022 , F25B2339/047 , F25B2341/0662 , F25B2400/0403 , F25B2400/0409 , F25B2400/0411 , F25B2400/0417 , F25B2400/13 , F25B2400/23 , F25B2600/021 , G04B49/00
Abstract: There is provided a vehicle air conditioning apparatus that can prevent the amount of the refrigerant discharged from the compressor from reducing when an outside air temperature is low to achieve a heating performance required for a heating operation, and also can dehumidify the vehicle interior without deteriorating the heating performance during a heating and dehumidifying operation. The vehicle air conditioning apparatus includes: a heat released refrigerant expansion valve that decompresses the refrigerant discharged from the radiator during the heating operation and the first heating and dehumidifying operation; a gas-liquid separator that separates the refrigerant decompressed by the heat released refrigerant expansion valve into a gaseous refrigerant and a liquid refrigerant; and a bypass circuit that allows part of at least the gaseous refrigerant separated in the gas-liquid separator to flow into a section of the compressor through which the refrigerant being decompressed passes.
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公开(公告)号：US20170241687A1
公开(公告)日：2017-08-24
申请号：US15450767
申请日：2017-03-06
Applicant: WHIRLPOOL CORPORATION
Inventor： Andrew D. Litch , Guolian Wu
CPC classification number: F25B45/00 , F25B5/02 , F25B40/02 , F25B41/04 , F25B41/06 , F25B2341/0661 , F25B2400/0417 , F25B2400/052 , F25B2400/054 , F25B2500/26 , F25B2600/0251 , F25B2600/11 , F25B2600/2501 , F25B2600/2507 , F25D29/00 , Y02B40/32
Abstract: A method of operating a refrigeration appliance, comprising the steps: operating a compressor and a valve system to cause refrigerant to flow through a refrigerant circuit to chill an evaporator during a compressor ON-cycle; operating the valve system to direct the refrigerant through a secondary pressure reducing device in response to the initiation of the compressor ON-cycle for a duration that lasts until a nominal operation condition has been reached; operating the valve system during the compressor ON-cycle to direct the refrigerant through a primary pressure reducing device in response to the nominal operation condition; and transferring thermal energy from the primary pressure reducing device to a suction line heat exchanger.
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公开(公告)号：US20170210202A1
公开(公告)日：2017-07-27
申请号：US15313458
申请日：2015-03-16
Applicant: Sanden Holdings Corporation
Inventor： Kenichi SUZUKI , Ryo MIYAKOSHI , Kouhei YAMASHITA , Hidenori TAKEI
CPC classification number: B60H1/00921 , B60H1/00842 , B60H1/3207 , B60H3/024 , B60H2001/006 , B60H2001/00957 , B60H2001/3272 , B60H2001/3277 , B60H2001/3282 , B60H2001/3285 , F25B5/04 , F25B6/04 , F25B40/00 , F25B40/02 , F25B49/02 , F25B2400/0403 , F25B2400/0409 , F25B2400/0411 , F25B2400/0417 , F25B2600/2501
Abstract: There is disclosed a vehicular air-conditioning device of a so-called heat pump system which eliminates or decreases noise generated when an opening/closing valve opens at a changing time of an operation mode. The vehicular air-conditioning device executes a heating mode to let a refrigerant discharged from a compressor 2 radiate heat in a radiator 4, decompress the refrigerant by which heat has been radiated, and then let the refrigerant absorb heat in an outdoor heat exchanger 7, and a dehumidifying and heating mode to open a solenoid valve 22 in a state of the heating mode, decompress at least a part of the refrigerant flowing out from the radiator and then let the refrigerant absorb heat in a heat absorber 9. When the heating mode changes to the dehumidifying and heating mode, the controller decreases a radiator pressure or a pressure difference before and after the solenoid valve to a predetermined value or less, and then opens the solenoid valve 22.
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Patent Agency Ranking
公开(公告)号：US20170122624A1
公开(公告)日：2017-05-04
申请号：US15407418
申请日：2017-01-17
Applicant: LENNOX INDUSTRIES INC.
Inventor： Shitong Zha , Robert B. "Dutch" Uselton
CPC classification number: F25B21/02 , F25B25/00 , F25B40/02 , F25B49/02 , F25B2309/061 , F25B2321/021 , F25B2339/041 , F25B2400/0417 , F25B2500/29 , F25B2600/2501 , F25B2700/2106
Abstract: According to certain embodiments, a refrigeration system comprises first and second evaporators, first and second compressors, and a gas cooler. The first and second evaporators receive liquid refrigerant from a flash tank and evaporate the refrigerant to cool a first case and a second case, respectively. The second case has a higher temperature set point than the first case. The first compressor compresses the refrigerant discharged from the first evaporator. The second compressor compresses the refrigerant discharged from the first compressor, flash gas from the flash tank, and the refrigerant discharged from the second evaporator. The gas cooler comprises an air-cooled stage that cools the refrigerant discharged from the second compressor and an evaporative stage that cools the refrigerant discharged from the air-cooled stage. The gas cooler further comprises an outlet that supplies the cooled refrigerant to the flash tank through an expansion valve.
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公开(公告)号：US20160209100A1
公开(公告)日：2016-07-21
申请号：US14986768
申请日：2016-01-04
Applicant: Heatcraft Refrigeration Products LLC
Inventor： Christopher Lyn Jentzsch , Jim Kitchen , Eric C. Moen
CPC classification number: F25B47/025 , F25B2400/0411 , F25B2400/0417
Abstract: The present application provides a refrigeration system with a flow of refrigerant therein for a refrigerant mode or a defrost mode. The refrigeration system may include a four way valve, an evaporator in communication with the four way valve, a compressor in communication with the four way valve, and a condenser in communication with the four way valve. The four way valve directs the flow of refrigerant to the condenser in the refrigeration mode or to the evaporator in the defrost mode.
Abstract translation: 本发明提供了一种制冷系统，其中具有用于制冷剂模式或除霜模式的制冷剂流。 制冷系统可以包括四通阀，与四通阀连通的蒸发器，与四通阀连通的压缩机以及与四通阀连通的冷凝器。 四通阀在制冷模式下将制冷剂的流量引导到冷凝器，或者在除霜模式下引导到蒸发器。
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公开(公告)号：US5524455A
公开(公告)日：1996-06-11
申请号：US414057
申请日：1995-03-30
Applicant: Etsuo Hasegawa , Yasushi Yamanaka , Yoshiyuki Yamauchi , Masahiro Shimoya , Toshio Ohara , Yoshiharu Kajikawa , Toshihiro Yamamoto , Kenichi Fujiwara , Shin Nishida , Yoshiaki Takano , Nobuharu Kakehashi
Inventor： Etsuo Hasegawa , Yasushi Yamanaka , Yoshiyuki Yamauchi , Masahiro Shimoya , Toshio Ohara , Yoshiharu Kajikawa , Toshihiro Yamamoto , Kenichi Fujiwara , Shin Nishida , Yoshiaki Takano , Nobuharu Kakehashi
CPC classification number: F25B40/00 , F25B39/022 , F25B41/04 , F25B41/062 , F28D1/0341 , F25B2341/0662 , F25B2400/0417
Abstract: An amount of refrigerant fed to an evaporator 16 is adjusted by an open degree of an expansion valve 6 in accordance to a refrigerant pressure and a refrigerant temperature of an outlet side of the evaporator 16. The evaporator 16 has an evaporation part which includes a refrigerant passage 26 connecting parallel with an inflow passage 22 and an outflow passage 24 and further having a cooled passage 28 which forms a first throttle 30 at the downstream thereof and a cooling passage 32. The cooled passage 28 links the expansion valve 6 and the inflow passage 22. The cooling passage 32 is connected to the outflow passage 24 and leads refrigerant to an outlet. A heat exchange part 20 is provided to be able to of performing heat exchange between the cooled passage 28 and the cooling passage 32. A second throttle is set in a bypass passage 38 which links the upstream side of the cooled passage 28 and the downstream side of the first throttle 30.
Abstract translation: 根据制冷剂压力和蒸发器16的出口侧的制冷剂温度，通过膨胀阀6的开度来调节供给到蒸发器16的制冷剂量。蒸发器16具有包括制冷剂的蒸发部 通道26与流入通道22和流出通道24平行地连接，并且还具有在其下游形成第一节流阀30的冷却通道28和冷却通道32.冷却通道28将膨胀阀6和流入通道 冷却通道32连接到流出通道24并将制冷剂引导到出口。 设置有能够在冷却通路28与冷却通路32之间进行热交换的热交换部20。另外，在将冷却通路28的上游侧与下游侧连结的旁路通路38设定第二节流阀 的第一个油门30。
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公开(公告)号：US11885540B2
公开(公告)日：2024-01-30
申请号：US17539318
申请日：2021-12-01
Applicant: Carrier Corporation
Inventor： Charbel Rahhal
CPC classification number: F25B39/04 , F25B1/10 , F25B40/02 , F25B41/31 , F25B49/02 , F25B2339/047 , F25B2400/0411 , F25B2400/0417 , F25B2400/13
Abstract: A method of cooling a refrigerant includes providing a condenser (200) including a condenser shell (202) that contains a condenser chamber (204), a condensing conduit (209), and a cooling conduit (217); condensing a refrigerant within the condenser chamber (204) from a vapour phase to a liquid phase by exchanging heat from the refrigerant in the condenser chamber (204) to a fluid in the condensing conduit (209); supplying a first portion of the condensed refrigerant to the cooling conduit (217) via a first expansion valve (310) such that the first portion of the refrigerant decreases in pressure and temperature before entering the cooling conduit (217); and cooling the refrigerant in the condenser chamber (204) by exchanging heat from the refrigerant in the condenser chamber (204) to the first portion of the refrigerant in the cooling conduit (217).
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公开(公告)号：US20160236538A1
公开(公告)日：2016-08-18
申请号：US15022103
申请日：2014-09-16
Applicant: SANDEN HOLDINGS CORPORATION
Inventor： Kenichi SUZUKI , Ryo MIYAKOSHI , Megumi SHIGETA
CPC classification number: B60H1/00921 , B60H1/00385 , B60H1/00678 , B60H3/024 , B60H2001/00957 , F25B5/04 , F25B6/04 , F25B40/00 , F25B40/02 , F25B41/04 , F25B43/006 , F25B49/02 , F25B49/022 , F25B2400/0409 , F25B2400/0411 , F25B2400/0417 , F25B2600/0253 , F25B2600/2509 , F25B2700/2106 , F25B2700/2117
Abstract: There is disclosed a vehicular air conditioner in which in a dehumidifying and cooling mode, a heating capability of a radiator can be acquired without increasing a flow rate of a refrigerant into a heat absorber. The dehumidifying and cooling mode is executed to let the refrigerant discharged from a compressor 2 radiate heat in a radiator 4 and an outdoor heat exchanger 7, decompress the refrigerant by which heat has been radiated and then let the refrigerant absorb heat in a heat absorber 9. The vehicular air conditioner includes an injection circuit 40 which distributes a part of the refrigerant flowing out from the radiator 4 to return the part of the refrigerant to the compressor 2, and in the dehumidifying and cooling mode, the injection circuit 40 is operated to return the refrigerant to the compressor 2, in a case where there is established predetermined radiator capability shortage condition on which a heating capability of the radiator 4 runs short and/or predetermined low outdoor air temperature startup condition on which startup is performed at a low outdoor air temperature.
Abstract translation: 公开了一种车辆空调，其中在除湿和冷却模式中，可以获得散热器的加热能力，而不增加制冷剂进入吸热器的流量。 执行除湿冷却模式以使从压缩机2排出的制冷剂在散热器4和室外热交换器7中散热，对已经放热的制冷剂进行减压，然后使制冷剂在吸热体9中吸热 车辆用空调装置具备：喷射回路40，分配从散热器4流出的制冷剂的一部分，将制冷剂的一部分返回到压缩机2，在除湿冷却模式下，将喷射回路40动作 在建立了散热器4的加热能力短的预定的散热器能力不足状况和/或在室外进行启动的预定的低室外空气温度启动条件的情况下，将制冷剂返回到压缩机2 气温。
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