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1. 发明授权

US06296194B1 Expansion valve 失效
标题翻译：膨胀阀
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

2. 发明授权

US06425528B2 Expansion valve 失效
标题翻译：膨胀阀
公开(公告)号：US06425528B2
公开(公告)日：2002-07-30
申请号：US09788993
申请日：2001-02-19
申请人： Hisatoshi Hirota , Shinji Saeki , Takashi Kobayashi
发明人： Hisatoshi Hirota , Shinji Saeki , Takashi Kobayashi
IPC分类号： F25B4104
CPC分类号： F25B41/062 , B29C45/14467 , B29L2031/7506 , F25B2341/0683 , F25B2500/21 , Y10T137/7036
摘要： In an expansion valve the pressure vessel of which is constituted by a reduced number of parts and which does not require seal members a valve unit is surrounded by first and second half shells which in turn are surrounded by a pressure vessel formed as a one-piece body by molding resin by an insert molding process. Since the resin constituting the resin molded one-piece pressure vessel simultaneously form internal sealing member structures no additional seal members are required to be positioned and mounted. The first and second half shells are shaped such that the necessary refrigerant passages for the valve unit are defined in communication with connection holes of the pressure vessel.
摘要翻译：在膨胀阀中，其压力容器由减少数量的部件构成，并且不需要密封构件，阀单元被第一和第二半壳包围，第一和第二半壳又由形成为一体的压力容器包围通过嵌件成型工艺模制树脂。由于构成树脂成型的一体式压力容器的树脂同时形成内部密封构件结构，因此不需要定位和安装附加的密封构件。第一和第二半壳形状使得用于阀单元的必要制冷剂通道被限定为与压力容器的连接孔连通。

3. 发明申请

US20050066674A1 Refrigeration cycle 审中-公开
标题翻译：制冷循环
公开(公告)号：US20050066674A1
公开(公告)日：2005-03-31
申请号：US10942124
申请日：2004-09-16
申请人： Hisatoshi Hirota , Shinji Saeki , Takeyasu Nishiyama
发明人： Hisatoshi Hirota , Shinji Saeki , Takeyasu Nishiyama
IPC分类号： F25B1/00 , F25B1/04 , F25B41/06 , F25B49/02 , G05D23/02 , F25B41/00 , F25B41/04 , F25B49/00
CPC分类号： F25B1/04 , F25B41/062 , F25B49/022 , F25B2341/065 , F25B2341/0683 , F25B2400/0411 , F25B2500/15 , Y02B30/72
摘要： To provide a refrigeration cycle which is capable of reducing power consumption while solving the problems of hunting and oil circulation. The refrigeration cycle is formed by combining an expansion valve that controls the flow rate of refrigerant supplied to an evaporator such that refrigerant at the outlet of the evaporator always maintains a predetermined level of superheat, in normal times, and is equipped with a minimum flow rate-securing device capable of allowing the refrigerant to flow at a predetermined minimum flow rate when the flow rate is most restricted, with a variable displacement compressor.
摘要翻译：提供一种在解决狩猎和油循环的问题的同时能够降低功耗的制冷循环。制冷循环通过组合一个膨胀阀来形成，该膨胀阀控制供应到蒸发器的制冷剂的流量，使得在蒸发器的出口处的制冷剂在正常时间内始终保持预定的过热水平，并且配备有最小流量能够允许制冷剂在流量最大限制的情况下以预定的最小流量流动的可变排量压缩机。

4. 发明申请

US20120234931A1 EXPANSION VALVE 审中-公开
标题翻译：膨胀阀
公开(公告)号：US20120234931A1
公开(公告)日：2012-09-20
申请号：US13411937
申请日：2012-03-05
申请人： Hisatoshi Hirota , Shinji Saeki , Takeshi Kaneko , Takanao Kumakura
发明人： Hisatoshi Hirota , Shinji Saeki , Takeshi Kaneko , Takanao Kumakura
IPC分类号： F25B41/04
CPC分类号： F25B41/062 , F25B5/02 , F25B2341/0661 , F25B2341/0683
摘要： An expansion valve is configured such that a shaft, a first valve, a second valve, a compression coil spring, and an adjustment screw are coaxially arranged within a body exactly below a power element, and the first valve and the second valve control the flow rate in an interlocked manner. A second valve seat of the second valve is press-fitted into the body, and an amount of press-fitting of the second valve seat into the body is adjusted such that when the first valve is in a closed state in which a first valve element is seated on a first valve seat, the second valve is in a closed state in which a second valve element is seated on the second valve seat.
摘要翻译：膨胀阀构造成使得轴，第一阀，第二阀，压缩螺旋弹簧和调节螺钉同轴地布置在正好位于功率元件下方的主体内，并且第一阀和第二阀控制流量以联锁方式。第二阀的第二阀座被压入本体内，并且将第二阀座压入本体中的量被调整为使得当第一阀处于关闭状态时，第一阀元件位于第一阀座上，第二阀处于关闭状态，其中第二阀元件位于第二阀座上。

5. 发明授权

US06804970B2 Method of controlling refrigeration cycle 失效
标题翻译：控制制冷循环的方法
公开(公告)号：US06804970B2
公开(公告)日：2004-10-19
申请号：US10612991
申请日：2003-07-07
申请人： Shinji Saeki , Hisatoshi Hirota
发明人： Shinji Saeki , Hisatoshi Hirota
IPC分类号： F25B4902
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.
摘要翻译：本发明的目的是提供一种控制制冷循环的方法，使得当制冷循环开始时可以提高最大制冷能力，当机动车辆执行起动时可以减小可变排量压缩机的驱动转矩，或者可以在稳定运行状态下以最大的效率运行制冷循环。用于控制用于控制可变排量压缩机和电子膨胀阀的容量的容量控制阀5的电信号被直接测量，并且高压侧制冷剂压力和低压侧制冷剂压力之间的压差基于电信号估计制冷循环和流过其中的制冷剂的流量，由此估计制冷循环的能量，并且通过使用发动机转速，估计可变排量压缩机的驱动转矩。由此，能够进行作为最大制冷量运转，最大效率运转，所需的最低制冷量运转等的能量控制，不仅可以进行省油省油运转，而且能够进行减少负荷的能量控制在发动机上在发动机怠速和加速期间。

6. 发明授权

US06532764B1 Degree of supercooling control type expansion valve 失效
标题翻译：过冷控制型膨胀阀
公开(公告)号：US06532764B1
公开(公告)日：2003-03-18
申请号：US09390152
申请日：1999-09-03
申请人： Hisatoshi Hirota , Shinji Saeki , Tokumi Tsugawa , Yuusuke Inoue , Katsumi Koyama
发明人： Hisatoshi Hirota , Shinji Saeki , Tokumi Tsugawa , Yuusuke Inoue , Katsumi Koyama
IPC分类号： F25B4106
CPC分类号： F25B41/062 , F25B2341/061 , F25B2341/062
摘要： An expansion valve of the degree-of-supercooling control type can be easily adjusted when assembling the degree of supercooling of a high-pressure refrigerant control to be held constant if an exerting force adjusting member is used for finely adjusting the exerting force. If either a throttling portion or a valve seat is formed with the exerting force adjusting member, a simple and compact design or construction can be achieved.
摘要翻译：如果使用施加力调节构件来精细调节施加力，则可以容易地调节过冷度控制型的膨胀阀，以将组装高压制冷剂控制器的过冷却程度保持恒定。如果通过施加力调节构件形成节流部或阀座，则可以实现简单紧凑的设计或构造。

7. 发明授权

US08956127B2 Control valve for variable displacement compressor 有权
标题翻译：变排量压缩机控制阀
公开(公告)号：US08956127B2
公开(公告)日：2015-02-17
申请号：US13344591
申请日：2012-01-05
申请人： Hisatoshi Hirota
发明人： Hisatoshi Hirota
IPC分类号： F04B1/26 , F04B1/32 , F04B1/29 , F04B49/22 , F04B27/18
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。

8. 发明授权

US07263857B2 Constant flow rate expansion value 失效
标题翻译：恒流量膨胀值
公开(公告)号：US07263857B2
公开(公告)日：2007-09-04
申请号：US11362871
申请日：2006-02-28
申请人： Hisatoshi Hirota
发明人： Hisatoshi Hirota
IPC分类号： F25B41/06
CPC分类号： F25B41/062 , F25B2341/062 , F25B2341/0671
摘要： To reduce the degree of influence of differential pressure on a pilot valve of a constant flow rate expansion valve. The constant flow rate expansion valve comprises a restriction passage for restricting the flow rate of refrigerant introduced from a refrigerant inlet port, a main valve for controlling the flow rate of refrigerant having flowed out from the restriction passage for discharging the refrigerant to a refrigerant outlet port, a piston for actuating the main valve in the valve-opening/closing direction by the differential pressure between intermediate pressure on the inlet port side of the main valve and pressure in a pressure chamber formed on the opposite side of the main valve, and a pilot valve for sensing the differential pressure proportional to the flow rate of refrigerant flowing through the restriction passage, thereby controlling the pressure in the pressure chamber set by a solenoid. In parallel with the main valve are arranged the pilot valve, the pressure chamber, and a fixed orifice in series in the direction of flow of refrigerant. This makes it possible to apply only the same level of differential pressure as that of small differential pressure applied to opposite end faces of the piston to the pilot valve, thereby making it possible to lessen the degree of influence of differential pressure on the pilot valve.
摘要翻译：减小压差对恒定流量膨胀阀的先导阀的影响程度。恒定流量膨胀阀包括用于限制从制冷剂入口引入的制冷剂的流量的限制通道，用于控制从用于将制冷剂排出到制冷剂出口的限制通道流出的制冷剂的流量的主阀用于通过主阀的入口侧的中间压力与形成在主阀的相反侧的压力室的压力之间的压差来以阀开闭方向致动主阀的活塞，以及用于感测与流过限制通道的制冷剂流量成比例的压差的控制阀，从而控制由螺线管设定的压力室中的压力。与主阀并联配置有先导阀，压力室和固定孔，在制冷剂流动方向上串联。这使得可以仅将施加到活塞的相对端面的小差压的差压水平施加到先导阀，从而可以减小差压对先导阀的影响程度。

9. 发明申请

US20060150649A1 Control valve for variable displacement compressor 失效
标题翻译：变排量压缩机控制阀
公开(公告)号：US20060150649A1
公开(公告)日：2006-07-13
申请号：US11324234
申请日：2006-01-04
申请人： Hisatoshi Hirota
发明人： Hisatoshi Hirota
IPC分类号： F25B41/00
CPC分类号： F04B27/1804 , F04B27/1036 , F04B2027/1813 , F04B2027/1827 , F04B2027/1854
摘要： To provide a control valve for a variable displacement compressor, which is capable of stably operating in a pressure control area, and causing the compressor to quickly shift to operation with the minimum displacement. The control valve for a variable displacement compressor is capable of realizing stable pressure control, since a force applied to a valve element in a valve-closing direction increases when the valve element is in a pressure control area, and is balanced with a force applied to the valve element in a valve-opening direction by the pressure of refrigerant. Further, when the valve element moves past an end point of the pressure control area, the force applied to the valve element in the valve-closing direction decreases to thereby increase the valve-opening degree of a valve portion when the valve portion is fully open. Therefore, when a solenoid is not energized, it is possible to ensure a sufficient flow rate of refrigerant, thereby making it possible to cause the compressor to quickly shift to operation with the minimum displacement.
摘要翻译：提供一种可变排量压缩机的控制阀，其能够在压力控制区域中稳定地操作，并使压缩机以最小排量快速转换到操作。用于可变排量压缩机的控制阀能够实现稳定的压力控制，因为当阀元件处于压力控制区域中时，在阀关闭方向上施加到阀元件的力增加，并且与施加到通过制冷剂的压力使阀元件处于阀打开方向。此外，当阀元件移动超过压力控制区域的终点时，在阀门关闭方向施加到阀元件的力减小，从而当阀部分完全打开时增加阀部分的开阀度。因此，当螺线管未通电时，可以确保制冷剂的足够的流量，从而可以使压缩机以最小的位移快速地转换到操作。

10. 发明授权

US06997001B2 Method of operating a refrigeration cycle 失效
标题翻译：操作制冷循环的方法
公开(公告)号：US06997001B2
公开(公告)日：2006-02-14
申请号：US10604847
申请日：2003-08-21
申请人： Hisatoshi Hirota
发明人： Hisatoshi Hirota
IPC分类号： F25B43/02
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。

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