公开(公告)号：US10760559B2

公开(公告)日：2020-09-01

申请号：US15621352

申请日：2017-06-13

申请人： TGK CO., LTD.

发明人： Kazuhiro Irie ,  Masaaki Tonegawa ,  Hiroshi Hamada

IPC分类号： F04B27/18 ,  F04B49/06 ,  F04C28/12 ,  F25B49/02 ,  F16K31/06

摘要： A control valve includes: a first valve to control a flow rate of refrigerant flowing from a discharge chamber to a control chamber of a compressor; a second valve to control a flow rate of the refrigerant flowing from the control chamber to a suction chamber; a solenoid to generate a drive force in a first valve closing direction and a second valve opening direction; a biasing member to generate a biasing force in an first valve opening direction and a second valve closing direction; and a pressure sensing part to sense a pressure in the suction chamber or the control chamber, and generate a counterforce against the drive force. A state in which both of the first and second valves are open is present during an increase in the current supplied to the solenoid from zero to an upper limit current value, and an increase rate of an opening degree of the first valve is increased during a decrease in the current supplied to the solenoid, a predetermined lower limit current value being an inflection point of the increase.

公开(公告)号：US10310522B2

公开(公告)日：2019-06-04

申请号：US15238055

申请日：2016-08-16

申请人： TGK CO., LTD.

发明人： Ryosuke Satake ,  Takeshi Kaneko

IPC分类号： F16K1/14 ,  G05D16/06 ,  F16K31/126 ,  F25B41/06

摘要： A control valve of an embodiment includes a disc coaxially in contact with a diaphragm, and a shaft configured to transmit a drive force in an axial direction caused by displacement of the diaphragm to a valve element. The diaphragm has a corrugated portion between a flat portion and the outer peripheral portion, the flat portion having a contact surface with which the disc is in contact. The corrugated portion includes substantially N+0.5 corrugations (N being a natural number) each protruding relative to a reference surface, the corrugations being formed between the outer peripheral portion and the flat portion, the reference surface being one surface of the outer peripheral portion. A height of each of the N corrugations of the corrugated portion is smaller than a height of the flat portion, the heights each being a height relative to the reference surface in an unloaded condition.

公开(公告)号：US10260786B2

公开(公告)日：2019-04-16

申请号：US14876768

申请日：2015-10-06

申请人： TGK CO., LTD.

发明人： Toshihiro Andoh

IPC分类号： F25B41/04 ,  F25B41/06 ,  F25B43/00 ,  F16K27/02 ,  F16K31/06

摘要： An electromagnetic valve according to one embodiment includes a body having a lead-in port through which a refrigerant is led in, a lead-out port through which the refrigerant is led out, and a valve hole formed in a passage joining the lead-in port to the lead-out port, a main valve element that opens and closes a valve section by moving toward and away from the valve hole, and a solenoid that supplies a drive force in a direction of axis line to the valve element, the solenoid being mounted on the body. The main valve element has a pilot passage that is open to the valve hole and an orifice that throttles and expands the refrigerant led in from the lead-in port so as to be led out to the pilot passage, the orifice being so formed as to communicate between the lead-in port and the pilot passage.

公开(公告)号：US20180347732A1

公开(公告)日：2018-12-06

申请号：US15672818

申请日：2017-08-09

申请人： WONDAE TGK CO., LTD.

发明人： Hanpyo Kang ,  Chul-Min Jang

IPC分类号： F16L21/02

CPC分类号： F16L17/04 ,  F16L21/005

摘要： A grooved coupler according to the present invention includes: a gasket generally having a ring shape, and having an elastic part formed in a rectangular hollow pipe shape with a space therein at an outer part of the ring shape in a cross-section of the ring shape and inclined at lower and upper portions of the rectangular pipe and an elastic band communicating with the elastic part at an inner part of the ring shape; and a first coupling housing and a second coupling housing each having a pressurizing tube for covering the gasket in a direction perpendicular to the central axis of the ring shape to cover the gasket, in which the pressurizing tubes are each formed in an arc shape and have a radius of curvature different from the gasket.

公开(公告)号：US09885506B2

公开(公告)日：2018-02-06

申请号：US14945376

申请日：2015-11-18

申请人： TGK CO., LTD.

发明人： Ryosuke Satake ,  Takeshi Watanabe

IPC分类号： F25B41/06 ,  F16K1/14 ,  F16K17/00 ,  F16K27/02 ,  F16K31/00 ,  F16K31/44

CPC分类号： F25B41/062 ,  F16K1/14 ,  F16K17/003 ,  F16K27/0245 ,  F16K31/002 ,  F16K31/44 ,  F25B2341/06 ,  F25B2341/068 ,  F25B2341/0683

摘要： An expansion valve according to one embodiment includes a body having a valve hole, a valve element which opens and closes a valve section by moving toward and away from the valve hole, and a shaft one end side of which connects to a drive section and the other end side of which connects to the valve element through the valve hole, the shaft transmitting the drive force, generated by the drive section, to the valve element. Here, the shaft is so provided as to run through an insertion hole formed axially with the valve hole in the body. The insertion hole is formed in the body by a cutting work, and has a support that supports the shaft and a diameter-enlarged part that is open to a downstream side of the valve hole and whose diameter is larger than that of the support.

公开(公告)号：US09518663B2

公开(公告)日：2016-12-13

申请号：US14483126

申请日：2014-09-10

申请人： TGK CO., LTD.

发明人： Toshiyuki Shiota ,  Toshihiro Andoh ,  Shigeru Abe

IPC分类号： F16K31/06 ,  F16K1/34 ,  F16K31/42 ,  F25B41/04

CPC分类号： F16K1/34 ,  F16K31/0627 ,  F16K31/423 ,  F25B41/04 ,  Y10T137/7761

摘要： A pilot valve element includes a metallic pilot valve body formed integrally with a plunger, a flexible sealing member, fitted on a tip of the pilot valve body, which touches and leaves a pilot valve seat, and a stopper for restricting the displacement of the pilot valve element relative to a driven member in a manner such that the sealing member is stopped in a direction of axis line after the sealing member has seated on a pilot valve seat. The stopper is configured such that the pressure-receiving diameter of the sealing member, which receives a pressure difference between an upstream side and a downstream side of the pilot valve, remains unchanged from when the sealing member comes in contact with the pilot valve seat until when the sealing member is stopped by the stopper with the result that the sealing member has completely seated on the pilot valve seat.

摘要翻译： 先导阀元件包括与柱塞一体形成的金属先导阀体，安装在先导阀体的尖端上的柔性密封构件，其接触和离开先导阀座;以及止动件，用于限制引导件的位移 阀元件相对于从动构件的方式使得密封构件在密封构件已经安置在先导阀座上之后使得密封构件在轴线方向上停止。 止动器被构造成使得接收先导阀的上游侧和下游侧之间的压力差的密封构件的受压直径从密封构件与先导阀座接触直到 当密封构件被止动件挡住时，密封构件完全就位在先导阀座上。

公开(公告)号：US09285054B2

公开(公告)日：2016-03-15

申请号：US13631711

申请日：2012-09-28

申请人： Michio Matsumoto ,  Isao Sendo ,  Masaaki Tonegawa

发明人： Michio Matsumoto ,  Isao Sendo ,  Masaaki Tonegawa

IPC分类号： F16K31/06 ,  F16K31/40 ,  F16K39/02

CPC分类号： F16K31/408 ,  F16K31/0655 ,  F16K39/022 ,  F16K39/024

摘要： A control valve according to an embodiment includes a guide member of a cylindrical shape extending coaxially with a valve hole, a valve element of a bottomed cylindrical shape for opening and closing a valve section such that the valve element touches and leaves the valve hole, and a pressure-canceling structure for canceling out at least part of pressure acting on the valve element by introducing a working fluid into a back pressure chamber via a leak passage, the pressure-canceling structure including the back pressure chamber, surrounded by the valve element and the guide member, and the leak passage communicating between the valve hole and the back pressure chamber. A sliding portion and a spacing are formed in an overlapped portion which is a region overlapped by the valve element and the guide member. The sliding portion is connected circumferentially at least when the valve section is closed, and the proportion of the spacing occupied in the overlapped portion is larger than the proportion of the sliding portion occupied at the time when the valve section is open.

摘要翻译： 根据实施例的控制阀包括与阀孔同轴延伸的圆筒形状的引导构件，用于打开和关闭阀部分的有底圆筒形状的阀元件，使得阀元件接触并离开阀孔;以及 压力消除结构，用于通过经由泄漏通道将工作流体引入到背压室中来抵消作用在阀元件上的至少一部分压力，该压力消除结构包括由阀元件包围的背压室和 引导构件和在阀孔和背压室之间连通的泄漏通道。 滑动部分和间隔形成在与阀元件和引导构件重叠的区域的重叠部分中。 滑动部分至少在阀部分闭合时周向连接，并且重叠部分中占据的间隔的比例大于阀部分打开时所占据的滑动部分的比例。

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。

公开(公告)号：USD689594S1

公开(公告)日：2013-09-10

申请号：US29407718

申请日：2011-12-01

申请人： Takanao Kumakura

设计人： Takanao Kumakura

公开(公告)号：USD589118S1

公开(公告)日：2009-03-24

申请号：US29287626

申请日：2007-08-30

申请人： Takeshi Watanabe

设计人： Takeshi Watanabe