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：US20060117793A1

公开(公告)日：2006-06-08

申请号：US11293278

申请日：2005-12-05

申请人： Tokumi Tsugawa ,  Masaaki Tonegawa

发明人： Tokumi Tsugawa ,  Masaaki Tonegawa

IPC分类号： F25B41/06 ,  F25B41/04

CPC分类号： F25B41/06 ,  F25B2341/063 ,  F25B2500/01 ,  F25B2500/12 ,  F25B2600/2505

摘要： An expansion device which is capable of reducing generation of untoward noise due to vibration of a valve element and suppressing a valve element suction phenomenon which occurs when high-pressure refrigerant flows through a variable orifice formed between a valve seat and the valve element. A damper chamber is formed by a cylinder formed in a housing formed with a valve seat, a piston integrally formed with a valve element, and an adjustment screw. When the valve element undergoes a sudden change in pressure of introduced refrigerant, the volume of the damper chamber changes to accommodate sudden motion of the valve element, whereby vibration of the valve element is suppressed, to reduce generation of untoward noise. The ratio (b/a) of the valve element diameter (b) of the valve element to the port diameter (a) of a valve hole is set to a value not larger than 1.5 so as to suppress a valve element suction phenomenon and pass refrigerant at a flow rate corresponding to a differential pressure between a primary pressure and a secondary pressure.

摘要翻译： 一种膨胀装置，其能够减少由于阀元件的振动引起的不利噪声的产生，并且抑制当高压制冷剂流过形成在阀座和阀元件之间的可变孔口时发生的阀元件吸入现象。 阻尼室由形成在形成有阀座的壳体中的气缸形成，与阀元件整体形成的活塞和调节螺钉。 当阀体经受引入制冷剂的压力突然变化时，阻尼室的体积变化以适应阀元件的突然运动，从而抑制阀元件的振动，以减少不良噪声的产生。 阀元件的阀芯直径（b）与阀孔的口径（a）的比（b / a）被设定为不大于1.5的值，以便抑制阀元件吸入现象并通过 制冷剂以与一次压力和二次压力之间的压差相对应的流量。

公开(公告)号：US20080053125A1

公开(公告)日：2008-03-06

申请号：US11844553

申请日：2007-08-24

申请人： Ryosuke SATAKE ,  Masaaki TONEGAWA ,  Tomohiro YUASA ,  Tokumi TSUGAWA

发明人： Ryosuke SATAKE ,  Masaaki TONEGAWA ,  Tomohiro YUASA ,  Tokumi TSUGAWA

IPC分类号： F25B41/04

CPC分类号： F25B41/062 ,  F25B9/008 ,  F25B40/00 ,  F25B2309/061 ,  F25B2500/18 ,  F25B2500/26 ,  F25B2600/2505 ,  F25B2700/21174

摘要： To provide an expansion device which shortens cool down time when an automotive air conditioner is started under a high-load condition. An expansion device having a differential pressure control valve is configured such that a temperature-sensing actuator (shape-memory alloy spring) is disposed at an refrigerant outlet of the expansion device, and when an air conditioner is started under a high-load condition in which the temperature of refrigerant at the refrigerant outlet is high, the shape-memory alloy spring senses the high temperature, to urge a spring determining a valve-opening point of the differential pressure control valve, whereby the differential pressure control valve is opened in advance or placed in a state capable of opening in response to a very low differential pressure, thereby making it possible to cause refrigerant to flow at a large flow rate until the temperature of refrigerant at the refrigerant outlet is lowered to a temperature assumed when the air conditioner functions.

摘要翻译： 提供一种在高负载条件下启动汽车空调时缩短冷却时间的膨胀装置。 具有差压控制阀的膨胀装置被构造为使得温度感应致动器（形状记忆合金弹簧）设置在膨胀装置的制冷剂出口处，并且当空调在高负载条件下启动时 制冷剂出口处的制冷剂的温度高，形状记忆合金弹簧感测高温，促使确定差压控制阀的开阀点的弹簧，由此差压控制阀预先打开 或放置在能够响应于非常低的压差而打开的状态，从而使制冷剂能够以大的流量流动，直到制冷剂出口处的制冷剂的温度降低到当空调器 功能。

公开(公告)号：US20130082199A1

公开(公告)日：2013-04-04

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

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：US06612542B2

公开(公告)日：2003-09-02

申请号：US09797431

申请日：2001-03-01

申请人： Hisatoshi Hirota ,  Masaaki Tonegawa

发明人： Hisatoshi Hirota ,  Masaaki Tonegawa

IPC分类号： F16K3104

CPC分类号： F16K31/041 ,  B60H1/00485 ,  F16K1/221 ,  Y10T137/87772

摘要： A motor operated butterfly valve arrangement, at least one valve element of which is to be brought into a proper extreme position such that water leakage or the like does not occur within the pipe controlled by the valve element, without the necessity to improve dimensional or mounting accuracy of the components and without the need to lock the motor actuating the valve element. An elastically deformable elastic coupling member is provided in a coupling mechanism interconnecting the motor and the valve element. As soon as the valve element reaches the desired extreme position in contact with a stopper, the motor is rotated to deform the elastic coupling member and to improve the contact between the valve element and the stopper. The motor is stopped in the deformed state of the elastic coupling member.

摘要翻译： 一种电动蝶阀装置，其至少一个阀元件将处于适当的极限位置，使得在由阀元件控制的管道内不会发生漏水等，而不需要改进尺寸或安装 组件的精度，而不需要锁定电动机致动阀元件。 一种可弹性变形的弹性联接构件设置在将马达和阀元件互连的联接机构中。 一旦阀元件到达与止动器接触的期望的极限位置时，电动机就旋转以使弹性联接构件变形并且改善阀元件和止动器之间的接触。 马达在弹性联接构件的变形状态下停止。

公开(公告)号：US20070180854A1

公开(公告)日：2007-08-09

申请号：US11701497

申请日：2007-02-02

申请人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Masaaki Tonegawa ,  Ryosuke Satake

发明人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Masaaki Tonegawa ,  Ryosuke Satake

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

CPC分类号： F25B41/062 ,  F25B40/00 ,  F25B2309/061 ,  F25B2341/0683 ,  F25B2500/18 ,  F25B2600/2505

摘要： To provide an expansion device which controls high pressure-side pressure such that the pressure does not exceed a predetermined pressure in terms of absolute pressure, while operating in response to differential pressure between pressure at an inlet thereof and pressure at an outlet thereof. An expansion device comprises an orifice for expanding refrigerant, a valve element disposed on a downstream side of a valve hole and urged by a shape-memory alloy spring in a valve-opening direction, a shaft disposed to extend through the valve hole and having one end thereof rigidly fixed to the valve element, and a spring provided at the other end of the shaft, for receiving load generated by differential pressure between pressure of refrigerant at an inlet of the device and pressure of refrigerant at an outlet thereof, in a valve-opening direction. The shape-memory alloy spring senses the temperature of refrigerant on the downstream side to perform temperature-dependent correction of a set value of the differential pressure for opening the valve element. Therefore, pressure on an upstream side of the valve hole is controlled as if by absolute pressure. Further, when the pressure on the upstream side exceeds a predetermined pressure, the spring is bent to open the expansion valve, and hence the pressure is prevented from rising above the predetermined pressure.

摘要翻译： 提供一种膨胀装置，其控制高压侧压力，使得压力绝对压力不超过预定压力，同时响应于其入口处的压力和其出口处的压力之间的压差而操作。 膨胀装置包括用于膨胀制冷剂的孔口，设置在阀孔的下游侧并由形状记忆合金弹簧沿阀打开方向推动的阀元件，设置成延伸穿过阀孔并具有一个 其端部刚性地固定到阀元件，以及设置在轴的另一端的弹簧，用于接收在装置的入口处的制冷剂的压力与其出口处的制冷剂的压力之间的差压产生的负载 开放方向 形状记忆合金弹簧感测下游侧的制冷剂的温度，以进行用于打开阀元件的压差的设定值的温度校正。 因此，通过绝对压力控制阀孔的上游侧的压力。 此外，当上游侧的压力超过预定压力时，弹簧被弯曲以打开膨胀阀，因此防止压力升高到高于预定压力。