公开(公告)号：EP3408597A1

公开(公告)日：2018-12-05

申请号：EP16702054.4

申请日：2016-01-25

申请人： Bitzer Kühlmaschinenbau GmbH

发明人： SABOY, Manuel ,  SØRENSEN, Kresten Kjaer ,  HEINILD, Morten

IPC分类号： F25B49/02 ,  F25B1/10

CPC分类号： F25B49/022 ,  F25B1/10 ,  F25B2600/022 ,  F25B2600/2519

摘要： Method for controlling a compressor system, arranged in a heat pumping circuit, said compressor system being designed to be operated at at least two different compressor capacity stages, said compressor capacity stages being adjusted by a capacity adjustment system enabling switching from one compressor capacity stage to another compressor capacity stage, said capacity adjustment system being controlled by a capacity selection signal defining the compressor capacity stage to be selected, said method comprising determining a capacity set value, determining a decision quantity on the basis of said capacity set value, determining a calculated capacity average value on the basis of capacity selection signals generated before, comparing said calculated capacity average value with said decision quantity and changing said compressor capacity stage to the next higher stage if the calculated capacity average value is below the decision quantity or changing said compressor capacity stage to the next lower stage if the calculated capacity average value is above the decision quantity, or not changing said compressor capacity stage if the calculated capacity average value meets said decision quantity.

公开(公告)号：EP3406909A1

公开(公告)日：2018-11-28

申请号：EP18170987.4

申请日：2018-05-07

申请人： Lennox Industries Inc.

发明人： GOEL, Rakesh ,  RAJAN, Siddarth

IPC分类号： F04D29/063 ,  F25B31/00 ,  F04B39/02 ,  F04B41/06

CPC分类号： F04B39/0207 ,  F04B23/04 ,  F04B39/121 ,  F04B39/123 ,  F04B41/06 ,  F04D13/12 ,  F04D29/063 ,  F25B31/002 ,  F25B31/004 ,  F25B41/04 ,  F25B41/043 ,  F25B49/02 ,  F25B49/022 ,  F25B2400/075 ,  F25B2400/0751 ,  F25B2500/16 ,  F25B2500/27 ,  F25B2600/0251 ,  F25B2600/2519 ,  F25B2600/2525

摘要： A compressor system includes a first compressor and a second compressor. A common equalization line fluidly couples the first compressor and the second compressor and provides a single path for passage of fluids between the first compressor and the second compressor. An obstruction device is disposed in the common equalization line. Responsive to one of the first compressor and the second compressor being deactivated while the other of the first compressor and the second compressor remains active, the obstruction device is in a closed configuration. When in the closed configuration, the obstruction device prevents flow of fluid between the first compressor and the second compressor. Prevention of fluid flow between the first compressor and the second compressor causes at least minimum prescribed fluid levels to be maintained in the first compressor and the second compressor.

公开(公告)号：EP3403033A1

公开(公告)日：2018-11-21

申请号：EP17701407.3

申请日：2017-01-11

申请人： Daikin Applied Americas Inc.

发明人： UMEDA, Nobuhiro ,  HOSSAIN, Md Anwar ,  TAKIGAWA, Takatoshi

IPC分类号： F25B1/053 ,  F25B31/00 ,  F25B49/02 ,  F04D29/58

CPC分类号： F04D29/5846 ,  F04D17/10 ,  F04D25/02 ,  F04D25/06 ,  F04D27/001 ,  F04D27/0207 ,  F04D27/0238 ,  F04D29/058 ,  F04D29/284 ,  F04D29/4206 ,  F04D29/441 ,  F04D29/444 ,  F04D29/705 ,  F05D2250/52 ,  F25B1/053 ,  F25B31/008 ,  F25B49/022 ,  F25B2600/0261 ,  F25B2600/2513 ,  F25B2600/2519 ,  F25B2700/21161 ,  F25B2700/21171

摘要： A centrifugal compressor for a chiller includes a casing, an inlet guide vane, an impeller downstream of the inlet guide vane, a motor and a diffuser. The casing has inlet and outlet portions with the inlet guide vane disposed in the inlet portion. The impeller is rotatable about a rotation axis defining an axial direction. A liquid injection passage is provided to inject liquid refrigerant into an area between the impeller and the diffuser. The motor rotates the impeller. The diffuser is disposed in the outlet portion downstream from the impeller with an outlet port of the liquid injection passage being disposed between the impeller and the diffuser. A controller is programmed to control an amount of the liquid refrigerant injected into the area between the impeller and the diffuser.

公开(公告)号：EP3361192A1

公开(公告)日：2018-08-15

申请号：EP17182313.1

申请日：2017-07-20

申请人： Daikin Europe N.V. ,  DAIKIN INDUSTRIES, LTD.

发明人： Pirmez, Pieter ,  Kawano, Satoshi ,  Kojima, Akiharu

IPC分类号： F25B49/02 ,  F24F1/24 ,  F24F1/46 ,  F25B31/00 ,  F25B5/02

CPC分类号： F25B49/02 ,  F24F1/18 ,  F24F1/24 ,  F24F1/46 ,  F24F11/84 ,  F25B13/00 ,  F25B31/006 ,  F25B2313/021 ,  F25B2600/2519 ,  F25B2700/1933 ,  F25B2700/2104 ,  F25B2700/21173

摘要： Heat source unit (2) for an air conditioner (1) comprising a refrigerant circuit, the heat source unit comprising an external housing (10) accommodating a compressor (3) to be connected to the refrigerant circuit; a heat source heat exchanger (5) to be connected to the refrigerant circuit and configured to exchange heat between a refrigerant circulating in the refrigerant circuit and a heat source (104); an electric box (30) having a top (31) and side walls (32 to 34), the electric box accommodating electrical components (36) to configured to control the air conditioner and having an air passage (37) comprising an air inlet (38) and an air outlet (39), an air flow (41) being induced through the air passage from the air inlet to the air outlet for cooling at least some of the electrical components, wherein a cooling heat exchanger (22) is accommodated in the external housing and to be connected to the refrigerant circuit, wherein the cooling heat exchanger (22) is arranged so as to be flown through by the air flow (41) and exchange heat between the refrigerant and the air flow, the cooling heat exchanger (22) being connected to a bypass line (24) branched from a liquid refrigerant line (25) and a gas suction line (26), wherein the bypass line (24) has a valve (20) upstream of the cooling heat exchanger; and a controller (65) configured to control the valve (20) in an OFF-mode in which the valve (20) is closed and an ON-mode in which the valve (20) is opened.

公开(公告)号：EP3288176A1

公开(公告)日：2018-02-28

申请号：EP16782814.4

申请日：2016-04-21

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： TAKEOKA, Yoshinori ,  TANAKA, Hidehisa

IPC分类号： H02P7/29

CPC分类号： H02P6/085 ,  F25B31/02 ,  F25B41/04 ,  F25B49/02 ,  F25B2500/26 ,  F25B2500/27 ,  F25B2600/021 ,  F25B2600/2517 ,  F25B2600/2519 ,  H02P6/06 ,  H02P6/182 ,  H02P2207/05 ,  Y02B30/741

摘要： Motor drive device (30) includes brushless DC motor (5) that drives a load and speed controller (8) that decides a PWM ON ratio for performing PWM control on brushless DC motor (5). The motor drive device further includes PWM ON ratio increasing-reducing unit (9) that increases/reduces the PWM ON ratio in accordance with a driving speed of brushless DC motor (5) and drive unit (10) that performs PWM control for driving brushless DC motor (5) in accordance with the PWM ON ratio decided by PWM ON ratio increasing-reducing unit (9). PWM ON ratio increasing-reducing unit (9) sets the PWM ON ratio to a ratio equal to or lower than the PWM ON ratio decided by speed controller (8) in an interval in which the driving speed of brushless DC motor (5) is lower than a predetermined speed, and sets the PWM ON ratio to a ratio equal to or higher than the PWM ON ratio decided by speed controller (8) in an interval in which the driving speed is higher than the predetermined speed.

摘要翻译： 电动机驱动装置30包括驱动负载和速度控制器8的无刷直流电动机5，该负载和速度控制器8决定用于对无刷直流电动机5进行PWM控制的PWM开启比。 电动机驱动装置还包括根据无刷DC电动机（5）的驱动速度来增大/减小PWM导通比的PWM导通比率增大减小单元（9），以及执行用于驱动无刷PWM控制的PWM控制的驱动单元（10） DC马达（5）根据由PWM ON比率增大减小单元（9）决定的PWM ON比例来确定。 在无刷直流电动机（5）的驱动速度为的区间中，PWM导通比例增加抑制单元（9）将PWM导通比率设定为等于或低于由速度控制器（8）确定的PWM导通比例 并且在所述驱动速度高于所述预定速度的区间中，将所述PWM开启比率设定为等于或高于由所述速度控制器（8）确定的所述PWM开启比率的比率。

公开(公告)号：EP3273180A1

公开(公告)日：2018-01-24

申请号：EP16764909.4

申请日：2016-03-11

申请人： Yanmar Co., Ltd.

发明人： KIHARA, Hirotoshi ,  OTA, Keisuke ,  AIKAWA, Terunori ,  NOBUHARA, Hirohiko ,  NAKAMURA, Hirotaka

IPC分类号： F25B1/00 ,  F25B43/02 ,  F25B49/02

CPC分类号： F04D27/009 ,  F25B1/00 ,  F25B31/004 ,  F25B41/067 ,  F25B43/02 ,  F25B49/02 ,  F25B2500/27 ,  F25B2600/025 ,  F25B2600/2519 ,  F25B2700/1932

摘要： In a heat pump in which oil in refrigerant discharged from a compressor is collected by an oil separator and the collected oil is returned to the compressor by using an oil return channel, an abnormality of the oil return channel is accurately detected at an early stage. A heat pump (10) includes: a compressor (16A, 16B) that discharges refrigerant; an oil separator (30) that separates oil from the refrigerant discharged from the compressor; an oil return channel (80) that returns the oil separated by the oil separator to the compressor; a pressure sensor (86A, 86B) that detects a pressure in the oil return channel; a first pressure loss member (84A, 84B) and a second pressure loss member (88A, 88B) disposed in portions of the oil return channel at an oil separator side and a compressor side relative to the pressure sensor; and a control device that increases an output of the compressor in a case where a pressure detected by the pressure sensor exceeds a suction pressure of the compressor and less than a discharge pressure of the compressor.

摘要翻译： 在从压缩机排出的制冷剂中的油被油分离器收集并且所收集的油通过回油通道返回到压缩机的热泵中，在早期精确地检测到回油通道的异常。 热泵（10）包括：排出制冷剂的压缩机（16A，16B） 油分离器（30），其将油与从压缩机排出的制冷剂分离; 回油通道（80），其将由所述油分离器分离的油返回到所述压缩机; 压力传感器（86A，86B），其检测回油通道内的压力; 第一压力损失部件（84A，84B）和第二压力损失部件（88A，88B），所述第二压力损失部件（88A，88B）设置在所述回油通道的相对于所述压力传感器的油分离器侧和压缩机侧的部分中; 以及控制装置，其在由所述压力传感器检测到的压力超过所述压缩机的吸入压力且小于所述压缩机的排出压力的情况下增大所述压缩机的输出。

公开(公告)号：EP2882603A4

公开(公告)日：2017-09-13

申请号：EP13828756

申请日：2013-08-08

申请人： THERMO KING CORP

发明人： KOPPINEEDI SRINIVASA RAO

IPC分类号： B60H1/32 ,  F25B1/00 ,  F25B41/00

CPC分类号： F25B31/00 ,  B60H1/3214 ,  B60H1/3232 ,  F25B31/004 ,  F25B43/02 ,  F25B2500/26 ,  F25B2500/27 ,  F25B2600/2519 ,  F25D11/003 ,  F25D17/02

公开(公告)号：EP3059519A4

公开(公告)日：2017-08-23

申请号：EP13895676

申请日：2013-10-17

申请人： MITSUBISHI ELECTRIC CORP

发明人： TAKAYAMA KEISUKE ,  MORISHITA KUNIHIRO ,  KOIDE TORU

IPC分类号： F25B1/00 ,  F24D17/02 ,  F24D19/10 ,  F25B6/00 ,  F25B6/04 ,  F25B40/00 ,  F25B49/02

CPC分类号： F25B49/02 ,  F24D17/02 ,  F24D19/1054 ,  F25B6/00 ,  F25B40/00 ,  F25B2339/047 ,  F25B2400/0403 ,  F25B2600/2501 ,  F25B2600/2519 ,  F25B2700/21161

公开(公告)号：EP2662647A3

公开(公告)日：2017-07-12

申请号：EP13002424.3

申请日：2013-05-07

申请人： Liebherr-Hausgeräte Ochsenhausen GmbH

发明人： Ertel, Thomas ,  Gindele, Thomas

IPC分类号： F25B41/06

CPC分类号： F25B41/062 ,  F25B2600/2513 ,  F25B2600/2519

摘要： Die vorliegende Erfindung betrifft ein Kühl- und/oder Gefriergerät mit wenigstens einem Kältemittelkreislauf, wobei der Kältemittelkreislauf wenigstens einen Verdampfer sowie wenigstens ein Mittel zur Verringerung des Druckes des den Kältemittelkreislauf durchströmenden Kältemittels aufweist, das vorzugsweise in Strömungsrichtung des Kältemittels stromaufwärts des Verdampfers angeordnet ist, wobei es sich bei dem Mittel um wenigstens ein Ventil handelt oder dass das Mittel wenigstens ein Ventil umfaßt, wobei es sich bei dem Ventil um ein Expansionsventil und/oder um ein Stoppventil handelt.

摘要翻译： 本发明涉及一种冰箱和/或冷冻与至少一个制冷剂回路，所述制冷剂回路包括至少一个蒸发器和至少一个装置，用于通过流动的制冷剂，其优选地布置在蒸发器的制冷剂上游的流动方向减小制冷剂回路的压力，其中 该装置是至少一个阀或该装置包括至少一个阀，该阀是膨胀阀和/或截止阀。

公开(公告)号：EP3023275A4

公开(公告)日：2017-04-05

申请号：EP14826814

申请日：2014-07-10

申请人： PANASONIC IP MAN CO LTD

发明人： NODA YOSHITOSHI ,  TERADA TOMOHIRO ,  TANIGUCHI KATSUJI ,  KURODA KENTARO

IPC分类号： B60H1/22 ,  B60H1/06

CPC分类号： B60H1/03 ,  B60H1/00921 ,  B60H1/3213 ,  B60H2001/00949 ,  F25B5/02 ,  F25B6/04 ,  F25B25/005 ,  F25B41/04 ,  F25B49/02 ,  F25B2339/047 ,  F25B2600/2519

摘要： This vehicle air conditioner includes a first water-refrigerant heat exchanger, a second water-refrigerant heat exchanger, a first switch which can switch between a state where a refrigerant fed from the second water-refrigerant heat exchanger is fed to an evaporator, and a state where the refrigerant is not fed to the evaporator, and a second switch which can switch between a state where the refrigerant fed from the second water-refrigerant heat exchanger is expanded and fed to the first water-refrigerant heat exchanger, and a state where the refrigerant is not fed to the first water-refrigerant exchanger. And the first water-refrigerant heat exchanger is connected to a heater core and a cooling portion of a heating component of a vehicle with a path of a coolant, and the second water-refrigerant heat exchanger is connected to the cooling portion of the heating component of the vehicle and the heater core with a path of a coolant.

摘要翻译： 该车辆空调包括第一水 - 制冷剂热交换器，第二水 - 制冷剂热交换器，可以在从第二水 - 制冷剂热交换器供给的制冷剂被供给到蒸发器的状态之间切换的第一开关和 制冷剂不被供给到蒸发器的状态，以及可以在从第二水 - 制冷剂热交换器供给的制冷剂被供给到第一水 - 制冷剂热交换器的状态之间切换的第二开关，以及 制冷剂不被供给到第一水 - 制冷剂交换器。 并且第一水 - 制冷剂热交换器连接到加热器芯和具有冷却剂路径的车辆的加热部件的冷却部分，并且第二水 - 制冷剂热交换器连接到加热部件的冷却部分 的车辆和具有冷却剂路径的加热器芯。