公开(公告)号：US20160320113A1

公开(公告)日：2016-11-03

申请号：US14769186

申请日：2014-07-28

申请人： HITACHI APPLIANCES. INC.

发明人： Sachio SEKIYA ,  Masanao KOTANI ,  Shigeyuki SASAKI

IPC分类号： F25B49/02 ,  F24F11/00 ,  F25B5/02 ,  F24F1/08 ,  F25B13/00

CPC分类号： F25B49/022 ,  F24F1/08 ,  F24F11/30 ,  F24F11/62 ,  F24F11/65 ,  F25B5/02 ,  F25B13/00 ,  F25B49/02 ,  F25B2313/0233 ,  F25B2313/02741 ,  F25B2313/0314 ,  F25B2500/15 ,  F25B2500/26 ,  F25B2600/01 ,  F25B2600/0253 ,  F25B2600/2513 ,  F25B2700/2106 ,  F25B2700/21172 ,  Y02B30/741

摘要： The air conditioning apparatus of the present invention includes a refrigeration cycle device formed by connecting an outdoor unit equipped with a compressor with a plurality of indoor units, the indoor unit performs an air conditioning operation by switching between an thermo-on operation for performing a cooling operation or a heating operation and a thermo-off operation for suspending the cooling operation or the heating operation by using information on temperature difference between a suction air temperature and a set temperature, and shifts to a start-stop suppression operation mode for making any indoor unit perform the thermo-on operation in a case where an indoor unit A has met a thermo-off condition for switching from the thermo-on operation to the thermos-off operation and in a case where there is none of the indoor units is in the thermo-on operation other than the indoor unit A.

摘要翻译： 本发明的空气调节装置包括通过将配备有压缩机的室外机与多个室内机连接而形成的制冷循环装置，室内机通过在进行冷却的热启动操作之间进行切换来进行空调运转 通过使用关于吸入空气温度和设定温度之间的温度差的信息来暂停制冷运转或制热运转的运转或加热运转以及热关闭运转，并转移到制动室内的停止抑制运转模式 在室内机A满足用于从热接通操作切换到热关闭操作的热关闭状态的情况下，以及在没有室内单元处于热关闭状态的情况下，单元执行热启动操作 除了室内机A之外的热启动操作。

公开(公告)号：US07395678B2

公开(公告)日：2008-07-08

申请号：US11070345

申请日：2005-03-02

申请人： Raymond P. Arno ,  David R. Arno ,  John A. Carlin

发明人： Raymond P. Arno ,  David R. Arno ,  John A. Carlin

IPC分类号： F25B41/00

CPC分类号： F25B43/006 ,  F25B41/043 ,  F25B2500/15

摘要： A system for modulating refrigerant flow from an evaporator of an air or gas drying apparatus wherein the air or gas drying apparatus has an evaporator shell with at least one exit orifice for return of refrigerant to an accumulator or compressor. The system comprising a flow metering structure connected to the at least one exit orifice, the structure having an internal tube with a vertical rise from an evaporator shell end to an accumulator or compressor end, the internal tube having at least one return orifice (a) which allows passage of liquid refrigerant outside the internal tube into the internal tube, and at least one return orifice (b) which allows passage of gas outside the internal tube into the internal tube.

摘要翻译： 一种用于调节来自空气或气体干燥设备的蒸发器的制冷剂流量的系统，其中所述空气或气体干燥装置具有带有至少一个出口的蒸发器外壳，用于将制冷剂返回到蓄压器或压缩机。 该系统包括连接到至少一个出口孔的流量计量结构，该结构具有内部管，其具有从蒸发器壳体端部到蓄能器或压缩机端部的垂直升高，内部管具有至少一个返回孔口（a） 允许液体制冷剂在内管内通入内管，以及至少一个返回孔（b），其允许气体在内管外部进入内管。

公开(公告)号：US5392612A

公开(公告)日：1995-02-28

申请号：US72525

申请日：1993-06-04

申请人： Richard H. Alsenz

发明人： Richard H. Alsenz

IPC分类号： F25B41/06 ,  F25B49/02 ,  G05D23/20 ,  F25B41/04

CPC分类号： F25B49/02 ,  F25B41/062 ,  F25B2341/0652 ,  F25B2400/075 ,  F25B2500/15 ,  F25B2600/21 ,  F25B2600/2513 ,  F25B2700/21173 ,  F25B2700/21174 ,  F25B2700/21175 ,  Y02B30/72

摘要： A closed loop vapor compression refrigeration system wherein the control range of a control parameter for controlling the flow of the refrigerant through the evaporator coil is automatically adjusted as the operating conditions change is disclosed. A control parameter for controlling the refrigerant flow through the evaporator and a dynamic control range for the control parameter are defined. The control range is made a function of certain system parameters. A nonlinear flow control response function associated with the control parameter is selected. During operation, the control range is automatically adjusted as the values of the selected system parameters change. The flow through a flow control device, such as an expansion valve, coupled to the evaporator, is adjusted according to the flow control response function as the value of the control parameter changes.

摘要翻译： 一种闭环蒸气压缩式制冷系统，其中，通过公开所述操作条件变化，自动调整用于控制通过所述蒸发器盘管的制冷剂的流量的控制参数的控制范围。 定义用于控制通过蒸发器的制冷剂流量的控制参数和用于控制参数的动态控制范围。 控制范围是某些系统参数的函数。 选择与控制参数相关联的非线性流量控制响应函数。 在运行期间，随着所选系统参数值的变化，自动调节控制范围。 当控制参数的值发生变化时，根据流量控制响应功能来调节流经控制装置的流量控制装置，例如膨胀阀，其连接到蒸发器。

公开(公告)号：US5195331A

公开(公告)日：1993-03-23

申请号：US690335

申请日：1991-04-26

申请人： Bernard Zimmern ,  Jean L Picouet

发明人： Bernard Zimmern ,  Jean L Picouet

IPC分类号： F25B41/06

CPC分类号： F25B41/062 ,  F25B2341/0681 ,  F25B2500/15 ,  F25B2600/21

摘要： The expansion valve 103 of the refrigerating machine is controlled by the difference between the pressure in a bulb 104 containing a fixed amount of fluid and the pressure in the evaporator 2. The bulb is mounted in the discharge pipe 1 of the evaporator and is heated by a resistor. In the absence of droplets of liquid refrigerant in the flow through the discharge pipe, i.e when the refrigerant flow rate tends to become too low with respect to the cold demand, the resistor heats up the fluid in the bulb, the pressure in the bulb increases and moves the expansion valve to a more opened position. As soon as droplets hit the bulb in the discharge pipe, said droplets cool down the bulb despite the heating effect of the resistor and the expansion valve is moved to a more closed position. Thus, the flow rate control uses variations in heat transfer coefficients in the discharge pipe rather than superheat temperature in the discharge pipe. The evaporator may be small-sized because it does not have to produce superheat.

摘要翻译： 冷冻机的膨胀阀103由包含固定量的流体的灯泡104的压力与蒸发器2的压力之间的差来控制。灯泡安装在蒸发器的排出管1中，并被加热 一个电阻 在没有流过排放管的液体制冷剂液滴的情况下，即当制冷剂流量相对于冷需求趋于变得太低时，电阻加热灯泡中的流体，灯泡中的压力增加 并将膨胀阀移动到更加打开的位置。 一旦液滴撞击排放管中的灯泡，即使电阻器的加热效应和膨胀阀移动到更为关闭的位置，所述液滴也会冷却灯泡。 因此，流量控制使用排出管中的传热系数的变化，而不是排出管中的过热温度。 蒸发器可以是小尺寸的，因为它不必产生过热。

公开(公告)号：US5182920A

公开(公告)日：1993-02-02

申请号：US903275

申请日：1992-06-24

申请人： Fumio Matsuoka ,  Kouichi Negoro ,  Takeshi Sugimoto ,  Toshiaki Yamaguchi ,  Tetsuya Yamashita

发明人： Fumio Matsuoka ,  Kouichi Negoro ,  Takeshi Sugimoto ,  Toshiaki Yamaguchi ,  Tetsuya Yamashita

IPC分类号： F25B1/00 ,  F25B41/04 ,  F25B41/06

CPC分类号： F25B41/043 ,  F25B41/062 ,  F25B2341/065 ,  F25B2500/15 ,  Y02B30/72

摘要： A condenser (2), an electronic expansion valve (5), an evaporator (6), and a motorized suction throttle valve (8) are connected in series with a compressor. When a capacity is increased, the electronic expansion valve (5) is controlled to be in a throttling direction and the motorized suction throttle valve (8) is controlled to be in an unthrottling direction in association with the control of the electronic expansion valve (5), and when a capacity is decreased, the electronic expansion valve (5) is controlled to be in an unthrottling direction and the motorized suction throttle valve (8) is controlled to be in a throttling direction in association with the control of the electronic expansion valve (5). While a capacity control of a compressor by a throttle control is been carried out, such associated control is made between the electronic expansion valve (5) and the motorized suction throttle valve (8), realizing a fine temperature control in a refrigerating machine without hunting.

公开(公告)号：US4788828A

公开(公告)日：1988-12-06

申请号：US147304

申请日：1988-01-22

申请人： Motoharu Sato

发明人： Motoharu Sato

IPC分类号： B60H1/32 ,  F25B41/00 ,  F25B41/04 ,  F25B41/06 ,  G05D23/12

CPC分类号： F25B41/062 ,  B60H1/3205 ,  B60H1/3208 ,  G05D23/123 ,  B60H2001/3242 ,  B60H2001/3255 ,  B60H2001/3267 ,  B60H2001/3283 ,  B60H2001/3285 ,  F25B2341/062 ,  F25B2500/15

摘要： A refrigeration circuit including a compressor, a condenser, a control device, an evaporator and an accumulator is disclosed. The elements are serially arranged with the control device located between the outlet of the condenser and the inlet of the evaporator. The control device includes a tubular casing having three spaced walls on its interior surface. The first wall includes a plurality of holes and has a bellows attached to the interior surface thereof, the second wall has a longitudinal bore and a parallel bypass hole therethrough, and the third wall includes an orifice. An operating valve is mounted on the opposite end of the bellows. The bellows expands and contracts in accordance with the temperature of refrigerant fluid and the outlet side of the condenser, thereby, moving the operating valve to the left or the right. Movement of the operating valve controls the open cross-sectional area of the longitudinal bore so that the flow volume of refrigerant fluid in the circuit may be controlled.

摘要翻译： 公开了一种包括压缩机，冷凝器，控制装置，蒸发器和蓄能器的制冷回路。 这些元件串联配置，控制装置位于冷凝器的出口和蒸发器的入口之间。 控制装置包括在其内表面上具有三个隔开的壁的管状壳体。 第一壁包括多个孔并且具有附接到其内表面的波纹管，第二壁具有纵向孔和穿过其的平行旁路孔，并且第三壁包括孔。 操作阀安装在波纹管的相对端。 波纹管根据制冷剂流体的温度和冷凝器的出口侧而膨胀和收缩，从而将操作阀向左或向右移动。 操作阀的移动控制纵向孔的敞开横截面积，从而可以控制回路中制冷剂流体的流量。

公开(公告)号：US4735060A

公开(公告)日：1988-04-05

申请号：US935808

申请日：1986-11-28

申请人： Richard H. Alsenz

发明人： Richard H. Alsenz

IPC分类号： F16K31/06 ,  F25B41/06 ,  F25B49/02 ,  G05D23/20 ,  F25B41/04

CPC分类号： F25B49/02 ,  F25B41/062 ,  G05D23/1913 ,  G05D23/20 ,  F25B2341/0652 ,  F25B2400/075 ,  F25B2500/15 ,  F25B2600/21 ,  F25B2600/2513 ,  F25B2700/21173 ,  F25B2700/21174 ,  F25B2700/21175 ,  Y02B30/72

摘要： A flood detection means for use with a solenoid expansion valve in a refrigeration system is disclosed. The flood detection means responds to the temperature differential across the evaporator coil for throttling down the flow rate through the expansion valve when the temperature differential is less than a temperature threshold. When the temperature differential is greater than the threshold, the valve resumes normal operations from the throttled down condition.

摘要翻译： 公开了一种与制冷系统中的电磁膨胀阀一起使用的洪水检测装置。 当温差小于温度阈值时，洪水检测装置响应蒸发器盘管两端的温差来节流通过膨胀阀的流量。 当温差大于阈值时，阀将从节流状态恢复正常运行。

公开(公告)号：US3667247A

公开(公告)日：1972-06-06

申请号：US3667247D

申请日：1970-07-10

申请人： CONTROLS CO OF AMERICA

发明人： PROCTOR ROBERT H

IPC分类号： F25B41/06 ,  F25B41/04

CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2500/15 ,  F25B2600/21

摘要： Refrigerant flows from the compressor and condenser to the evaporator by a thermostatic expansion valve having its pressure and temperature sensing points in the suction line downstream of the evaporator outlet control valve which regulates the evaporator pressure relatively independently of the suction line conditions. When the compressor capacity significantly exceeds evaporator capacity this system provides additional compressor cooling at low suction pressures. The expansion valve may be the bulbless type or the externally equalized type. The outlet control valve may respond to refrigerant temperature at the coil outlet, or to fin temperature, or may be an evaporator pressure regulator valve.

摘要翻译： 制冷剂通过恒温膨胀阀从压缩机和冷凝器流向蒸发器，该恒温膨胀阀的蒸发器出口控制阀下游的吸入管线中具有压力和温度检测点，其相对于吸入管线条件调节蒸发器压力。 当压缩机容量显着超过蒸发器容量时，该系统在低抽吸压力下提供额外的压缩机冷却。 膨胀阀可以是无球型或外部均衡型。 出口控制阀可以响应于线圈出口或散热片温度下的制冷剂温度，或者可以是蒸发器压力调节阀。

公开(公告)号：US20050217312A1

公开(公告)日：2005-10-06

申请号：US11070345

申请日：2005-03-02

申请人： Raymond Arno ,  David Arno ,  John Carlin

发明人： Raymond Arno ,  David Arno ,  John Carlin

IPC分类号： F25B7/00 ,  F25B41/04 ,  F25B41/06 ,  F25B43/00

CPC分类号： F25B43/006 ,  F25B41/043 ,  F25B2500/15

摘要： A system for modulating refrigerant flow from an evaporator of an air or gas drying apparatus wherein the air or gas drying apparatus has an evaporator shell with at least one exit orifice for return of refrigerant to an accumulator or compressor. The system comprising a flow metering structure connected to the at least one exit orifice, the structure having an internal tube with a vertical rise from an evaporator shell end to an accumulator or compressor end, the internal tube having at least one return orifice (a) which allows passage of liquid refrigerant outside the internal tube into the internal tube, and at least one return orifice (b) which allows passage of gas outside the internal tube into the internal tube.

摘要翻译： 一种用于调节来自空气或气体干燥设备的蒸发器的制冷剂流量的系统，其中所述空气或气体干燥装置具有带有至少一个出口的蒸发器外壳，用于将制冷剂返回到蓄压器或压缩机。 该系统包括连接到至少一个出口孔的流量计量结构，该结构具有内部管，其具有从蒸发器壳体端部到蓄能器或压缩机端部的垂直升高，内部管具有至少一个返回孔口（a） 允许液体制冷剂在内管内通入内管，以及至少一个返回孔（b），其允许气体在内管外部进入内管。

公开(公告)号：US20050126193A1

公开(公告)日：2005-06-16

申请号：US10732501

申请日：2003-12-10

申请人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

发明人： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC分类号： F25B49/02 ,  F25B7/00

CPC分类号： F25B49/02 ,  F25B2400/06 ,  F25B2400/13 ,  F25B2500/15 ,  F25B2500/16 ,  F25B2600/0261

摘要： Several control algorithms reduce the likelihood of insufficient oil return to the compressor. One algorithm is useful in a multi-circuit refrigerant system. A control reduces the cooling capacity of one of the circuits if the number of compressor start/stop cycles becomes excessive. By reducing the capacity, the control will reduce the number of compressor start/stop cycles for a circuit. In this manner, the oil continues to circulate through the circuit, and is more efficiently returned to the compressor. Another problem area associated with a poor oil return back to the compressor is when there is low mass flow rate of refrigerant circulating through the system. Various ways of increasing the refrigerant mass flow rate are disclosed to ensure proper oil return to the compressor. Also, if oil return problems are likely due to an undesirably high oil viscosity at the vapor portion of the evaporator or suction line, then steps are taken to reduce oil viscosity. Overall, the present invention discloses three distinct algorithms that may be utilized, either separately or in combination, to ensure better flow of oil back to the compressor. The invention enhances system and compressor reliability and performance as well as prevents the compressor damage.