公开(公告)号：US20030024257A1

公开(公告)日：2003-02-06

申请号：US10199650

申请日：2002-07-19

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Tomokazu Nakazawa

IPC分类号： F25B001/00 ,  F25B049/00

CPC分类号： F04B27/1804 ,  F25B9/008 ,  F25B2309/061

摘要： The object of the invention is to provide a displacement control valve which is capable of shortening a time period for transition in operating displacement, and operating without necessitating a large solenoid force even if the size of the valve is increased so as to increase the amount of refrigerant. A differential pressure-sensing section is separated from a valve section, and caused to sense the differential pressure by a small-diameter piston rod such that even a small-sized solenoid section can set a differential pressure. A valve element, which is formed to have a larger diameter than that of the piston rod to increase the amount of refrigerant, is configured to operate as a member formed in one piece with a shaft. The pressure Pc from a pressure-regulating chamber is received at the axial opposite ends of a reduced-diameter portion of the shaft, and the suction pressure Ps from a suction chamber is received at the axial opposite ends of the one-piece member of the valve element and the shaft, thereby canceling out influence of the pressure Pc and the suction pressure Ps such that the valve element can be controlled only by the differential pressure sensed by the piston rod.

摘要翻译： 本发明的目的是提供一种位移控制阀，其能够缩短操作位移中的过渡时间，并且即使阀的尺寸增大也不需要大的螺线管力而进行操作，从而增加 制冷剂 差压感测部分与阀部分分离，并通过小直径活塞杆感测到压差，使得即使小型螺线管部分也可以设定差压。 形成为具有比活塞杆大的直径以增加制冷剂量的阀元件被构造成作为与轴一体地形成的构件而起作用。 来自压力调节室的压力Pc被容纳在轴的缩径部分的轴向相对端，并且来自吸入室的吸入压力Ps被容纳在单件构件的轴向相对端 阀元件和轴，从而抵消压力Pc和吸入压力Ps的影响，使得阀元件仅能够由活塞杆感测到的压差来控制。

公开(公告)号：US20030000586A1

公开(公告)日：2003-01-02

申请号：US10180851

申请日：2002-06-26

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Toshiyuki Shiota ,  Katsumi Koyama

IPC分类号： F16K011/10

CPC分类号： F16K31/423 ,  F16K11/044 ,  F16K11/10 ,  F25B9/008 ,  F25B41/046 ,  F25B2309/061 ,  Y10T137/86839 ,  Y10T137/87893

摘要： A four-way switching valve free from leakage of a refrigerant. A pressure-regulating chamber is switchably connected to a low-pressure chamber or a high-pressure chamber by a three-way solenoid valve, and a pressure-regulating chamber is communicated with a chamber by a tube. When the three-way solenoid valve connects the pressure-regulating chamber to the low-pressure chamber, a plug is urged by the high pressure, thereby permitting port A and a port B to communicate with each other, while inhibiting the port B and a port D from communicating with each other. The pressure within the chamber is increased to thereby increase the pressure within the pressure-regulating chamber. Consequently, a plug is urged by a piston to thereby inhibit the port A and a port C from communicating with each other, and permitting the port C and the port D to communicate with each other. Inversely, when the three-way solenoid valve connects the pressure-regulating chamber to the high-pressure chamber, the plug is urged by a piston to thereby inhibit the port A and the port B from communicating with each other, and permitting the port B and the port D to communicate with each other. The pressure within the chamber is reduced to thereby reduce the pressure within the pressure-regulating chamber. Consequently, the plug is urged by the high pressure to thereby permitting the port A and the port C to communicate with each other, while inhibiting the port C and the port D from communicating with each other. This makes it unnecessary to cause leakage of the refrigerant to reduce pressures within the pressure-regulating chambers.

摘要翻译： 没有制冷剂泄漏的四通切换阀。 压力调节室通过三通电磁阀可切换地连接到低压室或高压室，并且压力调节室通过管与室连通。 当三通电磁阀将压力调节室连接到低压室时，由于高压力而迫使阀塞A和端口B相互连通，同时阻止端口B和 端口D相互通信。 室内的压力增加，从而增加压力调节室内的压力。 因此，塞子被活塞推动，从而阻止端口A和端口C彼此连通，并允许端口C和端口D彼此连通。 相反，当三通电磁阀将压力调节室连接到高压室时，塞子被活塞推动，从而阻止端口A和端口B相互连通，并允许端口B 和端口D相互通信。 室内的压力减小，从而降低压力调节室内的压力。 因此，插头被高压推动，从而允许端口A和端口C彼此连通，同时阻止端口C和端口D相互连通。 这使得不需要使制冷剂泄漏以减小压力调节室内的压力。

公开(公告)号：US20040055318A1

公开(公告)日：2004-03-25

申请号：US10658551

申请日：2003-09-10

申请人： TGK CO., LTD

发明人： Hisatoshi Hirota

IPC分类号： F25B041/04

CPC分类号： F25B41/062 ,  F25B5/02 ,  F25B2341/0683 ,  F25B2600/2519

摘要： The object of the present invention is to provide a solenoid valve-equipped expansion valve simplified in construction. A common valve element in which a valve element of an expansion valve and a valve element of a stop valve are integrally formed as a unitary member is disposed such that the common valve element can be axially movably guided by a shaft having the driving force of a power element transmitted thereto. A first core of a solenoid, holding the common valve element, is urged by a spring such that the common valve element is seated on a valve seat. When the solenoid is energized, the first core holding the common valve element is attracted by a second core rigidly fixed to the shaft such that the common valve element operates with the shaft in an interlocked fashion. As a result, when the solenoid is deenergized, the common valve element can function as a stop valve, whereas when the solenoid is energized, the common valve element can function as an expansion valve.

摘要翻译： 本发明的目的是提供一种简化结构的带电磁阀的膨胀阀。 一种普通的阀元件，其中膨胀阀的阀元件和截止阀的阀元件整体形成为整体构件，使得公共阀元件可以由具有驱动力的轴被轴向移动地引导 发送功率元件。 保持公共阀元件的螺线管的第一芯由弹簧推动，使得公共阀元件位于阀座上。 当螺线管通电时，保持公共阀元件的第一芯被被刚性地固定到轴的第二芯吸引，使得公共阀元件以互锁的方式与轴一起操作。 结果，当螺线管断电时，普通阀元件可用作截止阀，而当螺线管通电时，公共阀元件可用作膨胀阀。

公开(公告)号：US20040036044A1

公开(公告)日：2004-02-26

申请号：US10642270

申请日：2003-08-18

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota

IPC分类号： F16K031/383

CPC分类号： F25B41/062 ,  F25B2309/061 ,  F25B2341/065 ,  F25B2341/067 ,  F25B2600/2505 ,  G05D16/028 ,  G05D16/2097 ,  Y02B30/72

摘要： The object of the present invention is to provide a differential pressure control valve capable of preventing refrigerant from leaking along the outer periphery of a piston for actuating a main valve. An annular diaphragm has an inner peripheral edge portion clamped between a main valve piston and a fixing ring secured to the main valve piston, and an outer peripheral edge portion clamped between a body and a cylindrical member secured to the body, and the cylindrical member slidably receives the main valve piston. Thus, the outer periphery of the main valve piston is completely sealed by the diaphragm and inlet pressure P1 is introduced from a refrigerant introduction chamber into a piston chamber only through an orifice, whereby characteristics of the differential pressure control valve can be stabilized.

摘要翻译： 本发明的目的是提供一种能够防止制冷剂沿着用于致动主阀的活塞的外周泄漏的差压控制阀。 环形隔膜具有夹在主阀活塞和固定在主阀活塞上的固定环之间的内周边缘部分，以及夹在主体和固定于主体的圆柱形构件之间的外周边缘部分， 接收主阀活塞。 因此，主阀活塞的外周被隔膜完全密封，并且入口压力P1仅通过孔口从制冷剂引入室引入活塞室，从而能够稳定差压控制阀的特性。

公开(公告)号：US20040003603A1

公开(公告)日：2004-01-08

申请号：US10612991

申请日：2003-07-07

申请人： TGK CO., LTD.

发明人： Shinji Saeki ,  Hisatoshi Hirota

IPC分类号： B60H001/32 ,  F25B041/04 ,  F25B001/00 ,  F25B049/00

CPC分类号： B60H1/3216 ,  B60H1/3208

摘要： The object of the present invention is to provide a method of controlling a refrigeration cycle such that maximum refrigerating capacity can be educed when the refrigeration cycle is started, the driving torque of a variable displacement compressor can be reduced when an automotive vehicle performs standing start or acceleration, and the refrigeration cycle can be operated with the maximum efficiency in a steady operating condition. Electric signals for control of a capacity control valve 5 for controlling the capacity of a variable displacement compressor and an electronic expansion valve are directly measured, and the differential pressure between a high pressure-side refrigerant pressure and a low pressure-side refrigerant pressure in the refrigeration cycle and the flow rate of refrigerant flowing therethrough are estimated based on the electric signals, whereby the energy of the refrigeration cycle is estimated, and further by using an engine rotational speed, the driving torque of the variable displacement compressor is estimated. This makes it possible to carry out energy control for as maximum refrigerating capacity operation, maximum efficiency operation, required minimum refrigerating capacity operation, and so forth, whereby it is possible to carry out not only fuel consumption saving operation but also energy control for reducing burden on the engine e.g. during idling and acceleration of the engine.

公开(公告)号：US20020060250A1

公开(公告)日：2002-05-23

申请号：US09992343

申请日：2001-11-06

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Isao Sendo ,  Kuniharu Baba ,  Takeshi Kaneko

IPC分类号： F25B041/04

CPC分类号： F25B41/062 ,  F25B2400/05 ,  F25B2600/2513 ,  Y10T137/6011 ,  Y10T137/7504

摘要： To provide an expansion valve which permits both the assembling cost and the cost of parts to be effectively reduced by a large margin and thus is highly economical. A high-pressure refrigerant pipe, a valve casing and a low-pressure refrigerant pipe are previously formed integrally with an evaporator. At the time of assembling, an expansion valve unit having a minimum function to serve as an expansion valve is inserted into the valve casing and fixed thereto by a clip, and a distal end portion of a temperature sensing cylinder is fixed to an outlet pipe of the evaporator, thereby constructing an expansion valve. No special joints are required to connect the expansion valve unit to the high-pressure and low-pressure refrigerant pipes, and therefore, the cost of parts can be cut down. Also, since the valve casing into which the expansion valve unit is fitted is formed integrally with the high-pressure and low-pressure refrigerant pipes and the evaporator, no pipe connection is required, thus reducing the assembling cost.

摘要翻译： 为了提供能够大幅度有效地降低部件的组装成本和成本的膨胀阀，因此是非常经济的。 预先与蒸发器形成高压制冷剂管，阀壳和低压制冷剂管。 在组装时，具有作为膨胀阀的最小功能的膨胀阀单元被插入阀壳体中并通过夹子固定在其上，并且温度感测筒的远端部分固定到 蒸发器，从而构成一个膨胀阀。 将膨胀阀单元连接到高压和低压制冷剂管道上不需要特殊的接头，因此可以减少零件的成本。 此外，由于与高压低压制冷剂管和蒸发器一体地形成有安装有膨胀阀单元的阀壳，因此不需要管连接，因此降低了组装成本。

公开(公告)号：US20010050304A1

公开(公告)日：2001-12-13

申请号：US09873472

申请日：2001-06-04

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Shiniji Saeki ,  Kouji Habu

IPC分类号： B23K015/06 ,  B23K031/02 ,  B23K035/38

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1859 ,  Y10T29/49236 ,  Y10T29/49256

摘要： A vacuum chamber-forming method for forming a vacuum chamber in a power element of a control valve for a variable capacity compressor through a reduced number of steps. A power element is assembled in the atmospheric air by arranging a disk, a diaphragm, a disk, a spring and an upper housing on a lower housing, caulking the periphery of the lower housing to the periphery of the upper housing, and then soldering the junction of the upper and lower housings. The assembled power element is placed in a vacuum container, and a small hole formed in the upper housing is subjected to spot welding in the vacuum atmosphere, whereby the small hole is sealed by a weld metal.

摘要翻译： 一种用于通过减少步数形成用于可变容量压缩机的控制阀的功率元件中的真空室的真空室形成方法。 功率元件通过在下壳体上布置盘，隔膜，盘，弹簧和上壳体而组装在大气中，将下壳体的周边铆接到上壳体的周边，然后焊接 上下壳体的连接处。 组装的功率元件放置在真空容器中，并且形成在上壳体中的小孔在真空气氛中进行点焊，由此小孔被焊接金属密封。

公开(公告)号：US20040107716A1

公开(公告)日：2004-06-10

申请号：US10604847

申请日：2003-08-21

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota

IPC分类号： F25B001/00 ,  F25B043/02 ,  F25B049/00

CPC分类号： F25B31/004 ,  B60H1/3205 ,  B60H1/3214 ,  B60H1/3225 ,  B60H2001/3285 ,  F25B41/062 ,  F25B49/022 ,  F25B2341/065 ,  F25B2600/21 ,  F25B2600/2513 ,  Y02B30/72

摘要： The object of the present invention is to provide a method of operating a refrigeration cycle which is capable of preventing oil from staying in an evaporator and ensures high coefficient of performance as well as sufficient circulation of oil. An electronic expansion valve is controlled such that during normal operation, refrigerant is always in a superheated state at the outlet of an evaporator, and the refrigerant is periodically forced to have negative superheat for a predetermined time by a superheat control device. Thus, during normal operation, the refrigerant sucked into a variable displacement compressor always has superheat, whereby the refrigeration cycle can operate with high coefficient of performance and an engine driving the variable displacement compressor can be operated at high fuel efficiency. Also, the refrigerant is temporarily controlled so as to have negative superheat. Accordingly, lubricating oil stayed in the evaporator can be made to flow out to the variable displacement compressor, thus making it possible to prevent the compressor from seizing due to shortage of the lubricating oil.

摘要翻译： 本发明的目的是提供一种操作制冷循环的方法，其能够防止油停留在蒸发器中并确保高性能系数以及油的充分循环。 控制电子膨胀阀使得在正常操作期间，制冷剂在蒸发器的出口处始终处于过热状态，并且由过热控制装置周期性地将制冷剂强制为负过热一段预定时间。 因此，在正常运转时，吸入可变排量压缩机的制冷机始终具有过热性，由此能够以较高的性能系数运转制冷循环，并且能够以高燃料效率运转可变排量压缩机的发动机驱动。 此外，制冷剂被暂时控制为具有负的过热。 因此，可以使滞留在蒸发器中的润滑油流出到可变排量压缩机，从而可以防止压缩机由于润滑油不足而卡死。

公开(公告)号：US20040103677A1

公开(公告)日：2004-06-03

申请号：US10720167

申请日：2003-11-25

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota

IPC分类号： F25B041/00 ,  F25B049/00 ,  F25B043/00 ,  F25B039/04

CPC分类号： B60H1/3225 ,  B60H1/00978 ,  B60H1/3217 ,  F25B41/04 ,  F25B41/043 ,  F25B2341/0683 ,  F25B2400/19 ,  F25B2500/06 ,  F25B2500/18 ,  F25B2500/27

摘要： The object of the present invention is to prevent refrigerant from flowing out into a vehicle compartment due to damage to an evaporator or piping associated therewith. A solenoid valve is arranged at an inlet of an evaporator, and a check valve is arranged at an outlet of the evaporator. When operation of a system is to be stopped, the solenoid valve is closed while a compressor is kept operating for a predetermined time to suck out refrigerant from the evaporator to a downstream side of the check valve, so that during stoppage of the operation, the check valve prevents the refrigerant from flowing back into the evaporator. Thus, even if the evaporator arranged in the vehicle compartment or piping associated therewith is damaged, a situation where a large amount of refrigerant flows out of the evaporator into the vehicle compartment does not occur because no refrigerant remains in the evaporator, making it possible to prevent occupants in the vehicle compartment from being put in a grave situation.

摘要翻译： 本发明的目的是防止制冷剂由于与其相关联的蒸发器或管道的损坏而流出到车厢内。 电磁阀设置在蒸发器的入口处，并且在蒸发器的出口处布置有止回阀。 当停止系统的操作时，在压缩机保持运行预定时间以将制冷剂从蒸发器吸入止回阀的下游侧时，电磁阀关闭，使得在停止操作期间， 止回阀防止制冷剂回流到蒸发器中。 因此，即使布置在车辆隔室中的蒸发器或与其相关联的管道被损坏，也不会发生大量制冷剂从蒸发器流出到车厢内的情况，因为在蒸发器中没有制冷剂残留， 防止车厢内的乘客处于严重状况。

公开(公告)号：US20040057840A1

公开(公告)日：2004-03-25

申请号：US10664961

申请日：2003-09-22

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota

IPC分类号： F04B001/26

CPC分类号： F04B27/1804 ,  F04B49/225 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/185 ,  F04B2027/1854 ,  F04B2027/1872

摘要： The object of the present invention is to provide a capacity control valve for a variable displacement compressor that controls flow rate without the need for increased solenoid power. A compact, low-cost capacity control valve is provided as an integrated structure of a first control valve and a second control valve. The first control valve, placed on a passageway of refrigerant discharged from a variable displacement compressor, functions as a variable orifice whose cross-sectional area can be set as desired by varying the power of a solenoid unit. Part of the refrigerant discharged at pressure PdH is supplied to the crank chamber, in which the pressure is Pc. The second control valve controls this refrigerant flow to the crank chamber in such a way that the differential pressure between upstream pressure PdH and downstream pressure PdL of the discharged refrigerant will be regulated at a specified level. This arrangement makes it possible to reduce the size of the solenoid unit because the first control valve does not need a large force to yield a small differential pressure that is required for operation.

摘要翻译： 本发明的目的是提供一种用于可变排量压缩机的容量控制阀，其控制流量而不需要增加螺线管功率。 作为第一控制阀和第二控制阀的集成结构，提供了一种紧凑，低成本的容量控制阀。 放置在从可变排量压缩机排出的制冷剂通道上的第一控制阀用作可变孔口，其可以通过改变螺线管单元的功率来根据需要设定其横截面面积。 在压力PdH下排出的制冷剂的一部分被供给到其中压力为Pc的曲柄室。 第二控制阀以这样的方式控制该制冷剂流向曲柄室的流量，使得排出的制冷剂的上游压力PdH和下游压力PdL之间的压差将被调节到指定水平。 这种布置使得可以减小螺线管单元的尺寸，因为第一控制阀不需要大的力来产生操作所需的小的压差。