公开(公告)号：US06823897B2

公开(公告)日：2004-11-30

申请号：US10180851

申请日：2002-06-26

申请人： Hisatoshi Hirota ,  Toshiyuki Shiota ,  Katsumi Koyama

发明人： Hisatoshi Hirota ,  Toshiyuki Shiota ,  Katsumi Koyama

IPC分类号： F16K1122

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 is disclosed. The valve includes two three-way switching valves arranged side by side, each having a pressure-regulating chamber, a piston, and a plug coaxially arranged. One of the pressure-regulating chambers selectively communicates with a low-pressure chamber or a high-pressure chamber via a three-way solenoid valve. The other pressure-regulating chamber communicates with another chamber in which the pressure increases or decreases as the pressure within one of the pressure-regulating chambers decreases or increases. As a result, refrigerant leakage is prevented, in turn preventing degradation of the refrigerating power of a system.

摘要翻译： 公开了一种没有制冷剂泄漏的四通切换阀。 该阀包括并排布置的两个三通切换阀，每个具有压力调节室，活塞和同轴布置的塞子。 一个压力调节室通过三通电磁阀选择性地与低压室或高压室连通。 另一个压力调节室与其中一个压力调节室内的压力降低或增加的压力增加或减小的另一个室连通。 结果，防止制冷剂泄漏，从而防止系统的制冷功率的劣化。

公开(公告)号：US06662582B2

公开(公告)日：2003-12-16

申请号：US10199650

申请日：2002-07-19

申请人： Hisatoshi Hirota ,  Tomokazu Nakazawa

发明人： Hisatoshi Hirota ,  Tomokazu Nakazawa

IPC分类号： F25B100

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

摘要： 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： 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加而不需要大的螺线管力而进行操作，从而增加制冷剂的量。 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：US06394761B1

公开(公告)日：2002-05-28

申请号：US09543537

申请日：2000-04-05

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F04B126

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1831

摘要： In a capacity control apparatus of a variable capacity compressor 10 a chamber 30 between a valve seat 26 and diaphragm 24 communicates with a pressure control chamber 12 of the compressor 10. Said valve seat 26 communicates outside said chamber 30 with an inhalation chamber 3 of said compressor. A valve element 25 which is pressure balanced in relation to the pressure Pc in pressure control chamber 12 is axially moveable within said chamber 30. The pressure effective areas of said valve seat 26 and of a diaphragm 24 co-acting with said valve element 25 are formed with equal sizes. Due to the relatively small diaphragm size a small sized and cheap solenoid can be used for the actuation of valve element 25. The cross-section area of valve seat 26 is relatively big and prevents a delayed control response behavior of the capacity control apparatus.

摘要翻译： 在可变容量压缩机10的容量控制装置中，阀座26和隔膜24之间的室30与压缩机10的压力控制室12连通。所述阀座26在所述室30的外部与所述腔室30的吸入室3连通 压缩机。 相对于压力控制室12中的压力Pc压力平衡的阀元件25可在所述腔室30内轴向移动。所述阀座26和与所述阀元件25共同作用的隔膜24的压力有效面积为 形成相同的尺寸。 由于膜片尺寸相对较小，可以使用小型和便宜的螺线管来驱动阀元件25.阀座26的横截面积相对较大并且防止了容量控制装置的延迟的控制响应行为。

公开(公告)号：US06315266B1

公开(公告)日：2001-11-13

申请号：US09612640

申请日：2000-07-07

申请人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Yusuke Inoue

发明人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Yusuke Inoue

IPC分类号： F16K3142

CPC分类号： F25B41/062 ,  F16K31/406 ,  F25B9/008 ,  F25B2309/061 ,  F25B2341/067

摘要： In a silently operating pilot-operated flow regulating valve, a main valve element is not allowed to vibrate freely, e.g., in lateral direction in an opened state and cannot constitute a noise source because while the main valve element is brought into its open position, an urging force acts upon the main valve element so as to tilt it into vibration suppressing contact with the valve seat whereby vibration of the main valve element is restricted.

摘要翻译： 在静音操作的先导式流量调节阀中，主阀元件不允许在打开状态下例如横向振动，并且不能构成噪声源，因为在主阀元件进入其打开位置时， 推动力作用在主阀体上，以便将其倾斜成与阀座的振动抑制接触，从而限制主阀元件的振动。

公开(公告)号：US06296194B1

公开(公告)日：2001-10-02

申请号：US09480278

申请日：2000-01-10

申请人： Hisatoshi Hirota ,  Shinji Saeki ,  Isao Sendo ,  Masaichi Kawahata ,  Toshiyuki Shiota ,  Takashi Kobayashi

发明人： Hisatoshi Hirota ,  Shinji Saeki ,  Isao Sendo ,  Masaichi Kawahata ,  Toshiyuki Shiota ,  Takashi Kobayashi

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2500/05

摘要： An expansion valve adapted to achieve a stable operation in case of variations of the pressure of a high-pressure refrigerant is actuated by a power element transmitting an opening force to a valve body via a rod located between the power element and the power body by applying couple forces to the rod and generating a retarding force for the rod while the rod is guided in the direction of its shaft line

摘要翻译： 适于在高压制冷剂的压力变化的情况下实现稳定操作的膨胀阀由通过施加在功率元件和动力体之间的杆向阀体传递打开力的动力元件致动 当杆沿其轴线的方向被引导时，将杆耦合到杆上并产生用于杆的延迟力

公开(公告)号：US4722229A

公开(公告)日：1988-02-02

申请号：US928452

申请日：1986-11-10

申请人： Hisatoshi Hirota ,  Etsumi Nakano

发明人： Hisatoshi Hirota ,  Etsumi Nakano

IPC分类号： G01L9/00 ,  G01L9/14 ,  G01L9/02

CPC分类号： G01L9/14 ,  G01L9/007

摘要： A pressure transducer having a magnetoresistive element and a magnet displaced with a diaphragm. A magnet supporting device is mounted on an element supporting device both for slidable movement in the displacement-direction of the magnet and for rotatable movement about an axis in the direction, so that the pressure transducer is capable of having a O-point adjustment and a magnetic sensitivity adjustment made independently of each other without interaction between the two when the transducer is assembled.

摘要翻译： 具有磁阻元件和用隔膜移位的磁体的压力传感器。 磁体支撑装置安装在元件支撑装置上，用于在磁体的位移方向上可滑动地移动，并且可绕轴线在该方向上旋转运动，使得压力传感器能够进行O点调节和 当传感器组装时，磁敏度调节彼此独立，两者之间没有相互作用。

公开(公告)号：US4593166A

公开(公告)日：1986-06-03

申请号：US699152

申请日：1985-02-06

申请人： Hisatoshi Hirota ,  Toyoyuki Hara

发明人： Hisatoshi Hirota ,  Toyoyuki Hara

IPC分类号： H01H35/26 ,  H01H35/34

CPC分类号： H01H35/2657

摘要： There is provided a dual action pressure switch which comprises a casing having a pressure inlet, a diaphragm secured to and extending across the interior of the casing to define a pressure receiving chamber in the casing, a piston disposed on the side of the diaphragm opposite from the pressure receiving chamber for vertical movement subjected to pressure through the diaphragm, a holder biased to engage the piston under the force of a spring, a pair of stationary terminals having the lower ends extending downwardly beyond the lower end of the casing, a resilient disc disposed within the piston below the diaphragm for resiliently warping in one and the opposite directions and leaf springs subjected to the resilient force of the disc through a rod.

摘要翻译： 提供了双作用压力开关，其包括具有压力入口的壳体，固定到壳体内部并延伸穿过壳体内部的膜片，以在壳体内限定压力接收室;活塞，其设置在与膜片相对的侧面上 用于垂直运动的压力接收室受到通过隔膜的压力，在弹簧的作用下被偏压以接合活塞的保持器，具有向下延伸超过壳体下端的下端的一对固定端子，弹性盘 设置在隔膜下方的活塞内，以一个相反的方向弹性地翘曲，并通过杆受到盘的弹性力的板簧。

公开(公告)号：US20130001450A1

公开(公告)日：2013-01-03

申请号：US13344591

申请日：2012-01-05

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F16K31/02

CPC分类号： F04B1/324 ,  F04B1/295 ,  F04B49/22 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1854 ,  F04B2027/1859

摘要： A control valve includes a body having a crankcase communicating port, a discharge chamber communicating port and a suction chamber communicating port, which are arranged in this order from one end side of the body, a solenoid, provided at the other end side of the body, for driving a main valve in accordance with the amount of current supplied, a power element, provided in an inner space surrounded by the body and the solenoid, capable of exerting the drive force to resist the solenoidal force created by a displacement of a pressure-sensing member of the power element, and a shaft by which the drive force of the power element is adjustable by adjusting the fixed position of one end side of the shaft, the shaft being fixed to one end of the body and the other end of the shaft being joined with the power element.

摘要翻译： 控制阀包括具有曲轴箱连通口的主体，排气室连通口和抽吸室连通口，该主体从主体的一个端部以该顺序排列，设置在主体的另一端侧的螺线管 ，用于根据供给的电流量驱动主阀，设置在由主体和螺线管包围的内部空间中的功率元件，能够施加驱动力以抵抗由压力移位产生的螺线管力 功率元件的传感构件，以及通过调节所述轴的一端侧的固定位置来调节所述动力元件的驱动力的轴，所述轴固定在所述主体的一端，所述轴固定在所述主体的另一端 该轴与功率元件连接。

公开(公告)号：US07207186B2

公开(公告)日：2007-04-24

申请号：US10879359

申请日：2004-06-30

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F25B27/00

CPC分类号： F04B27/1804 ,  B60H2001/3298 ,  F04F5/04 ,  F04F5/461 ,  F04F5/48 ,  F25B41/00 ,  F25B41/04 ,  F25B43/006 ,  F25B49/022 ,  F25B2309/06 ,  F25B2341/0012 ,  F25B2400/0407 ,  F25B2400/0409 ,  F25B2500/18 ,  F25B2500/19

摘要： A variable displacement compressor driven by an engine, such as an engine for driving an automotive vehicle is used as a compressor, and the capacity of the compressor is controlled by a capacity control valve such that the differential pressure between discharge pressure and suction pressure of refrigerant becomes equal to a predetermined differential pressure determined by an external signal. Pressure substantially equal to pressure applied across the compressor is applied across the ejector, and therefore to control the differential pressure across the compressor is to control the differential pressure across the ejector. A differential pressure valve disposed between a gas-liquid separator and an evaporator is set to a differential pressure approximately proportional to the differential pressure across the ejector.

摘要翻译： 使用由诸如用于驱动机动车辆的发动机的发动机驱动的可变排量压缩机作为压缩机，并且压缩机的容量由容量控制阀控制，使得排出压力和制冷剂的吸入压力之间的压差 变得等于由外部信号确定的预定压差。 基本上等于施加在压缩机上的压力的压力跨越喷射器施加，因此控制压缩机两端的压差是控制喷射器两端的差压。 设置在气液分离器和蒸发器之间的差压阀被设定为与喷射器两端的差压大致成比例的差压。

公开(公告)号：US20060107673A1

公开(公告)日：2006-05-25

申请号：US11260264

申请日：2005-10-28

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F25B41/04 ,  F25B41/06

CPC分类号： G05D16/103 ,  F25B41/062 ,  F25B2309/06 ,  F25B2341/063 ,  G05D23/022

摘要： To provide a low-cost expansion device which is capable of changing a passage cross-sectional area of a restriction passage according to the pressure and temperature of introduced refrigerant, without provision of a high-pressure hermetically sealed space. The expansion device comprises a differential pressure valve for having the valve lift thereof controlled according to the differential pressure across the expansion device, and a temperature-sensing section for further controlling the valve lift of the differential pressure valve according to the temperature of refrigerant. The differential pressure valve includes a piston that has a larger outer diameter than that of a valve element and is integrally formed with the valve element. The piston forms a pressure-adjusting chamber into which the inlet pressure of the refrigerant is introduced via a pressure passage, whereby when the inlet pressure of the refrigerant becomes high, the differential pressure valve is caused to operate in a valve opening direction. The temperature-sensing section is formed by filling a bellows that can axially expand and contract, with a wax having a large coefficient of volumetric expansion, whereby the differential pressure valve is caused to operate in a valve closing direction when the inlet temperature of the refrigerant becomes high.

摘要翻译： 为了提供一种能够根据导入的制冷剂的压力和温度来改变限制通道的通道横截面面积而不设置高压密封空间的低成本膨胀装置。 膨胀装置包括用于根据膨胀装置两端的差压来控制气门升程的差压阀，以及用于根据制冷剂的温度进一步控制差压阀的气门升程的温度感测部。 差压阀包括具有比阀元件大的外径的活塞，并与阀元件一体形成。 活塞形成压力调节室，制冷剂的入口压力经由压力通道引入其中，当制冷剂的入口压力变高时，使压差阀在阀打开方向上运行。 通过用具有大体积膨胀系数的蜡填充可以轴向膨胀和收缩的波纹管来形成温度感测部分，由此当制冷剂的入口温度使压差阀工作时， 变高