公开(公告)号：US07069949B2

公开(公告)日：2006-07-04

申请号：US10842442

申请日：2004-05-11

Applicant: Katsumi Koyama

Inventor： Katsumi Koyama

IPC: F16K11/22

CPC classification number: F25B41/046 ,  Y10T137/86839 ,  Y10T137/87169

Abstract: The object of the present invention is to provide a simple-construction four-way switching valve which is simple in construction and excellent in sealability, performs switching of the operation mode without producing unusual noise, and is reduced in the number of manufacturing steps through elimination of externally-mounted parts for pressure passages. Main valves having a poppet valve structure constitute a three way switching valve which is operated by a pilot valve, for switching the high-pressure refrigerant introduced into the port T1 to the port T2 or to the port T3, and main valves which have a poppet valve structure and are switched by the differential pressure between the ports T2 and T3 constitute a low-pressure three-way switching valve. This makes it possible to improve the sealability, prevent unusual noise from being generated during switching of the operation mode, and simplify the construction. Further, the pressure passage for releasing the back pressures of the pistons that actuate the main valves is formed through the body, which dispenses with externally-mounted parts, such as tubes, so that the number of parts is reduced to make it possible to reduce the size.

Abstract translation: 发明内容本发明的目的在于提供一种施工简单，密封性优异的简单结构的四通切换阀，不产生异常噪声而进行操作模式的切换，并且通过消除来减少制造步骤的数量 用于压力通道的外部安装部件。 具有提升阀结构的主阀构成三通切换阀，其由先导阀操作，用于将引入到端口T 1中的高压制冷剂切换到端口T 2或端口T 3，以及主阀， 具有提升阀结构，并且通过端口T 2和T 3之间的差压切换构成低压三通切换阀。 这使得可以提高密封性，防止在切换操作模式期间产生异常噪声，并且简化结构。 此外，用于释放致动主阀的活塞的背压的压力通道通过主体形成，该主体分配诸如管的外部安装部件，使得部件的数量减少，使得可以减少 尺寸。

公开(公告)号：US20060124185A1

公开(公告)日：2006-06-15

申请号：US11350016

申请日：2006-02-09

Applicant: Katsumi Koyama

Inventor： Katsumi Koyama

IPC: F16K17/04

CPC classification number: F16K31/406 ,  F16K11/105 ,  F25B41/046 ,  Y10T137/87861 ,  Y10T137/87877

Abstract: The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero. After the second valve is closed, the valve-closed state thereof is maintained by the difference between pressure-receiving areas. The second valve is formed to have a sealing structure using a slidable X packing, whereby the valve-opening stroke can be increased.

公开(公告)号：US06783110B2

公开(公告)日：2004-08-31

申请号：US10308211

申请日：2002-12-02

Applicant: Hisatoshi Hirota ,  Tokumi Tsugawa ,  Katsumi Koyama ,  Toshiyuki Shiota ,  Yuusuke Inoue

Inventor： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Katsumi Koyama ,  Toshiyuki Shiota ,  Yuusuke Inoue

IPC: F16K3102

CPC classification number: F25B41/062 ,  F16K1/123 ,  F16K3/265 ,  F16K31/0651 ,  F16K31/0655 ,  F16K31/0668 ,  F25B2341/061 ,  F25B2341/065 ,  Y02B30/72

Abstract: To provide a small-sized and low-cost proportional solenoid valve which is capable of controlling a bidirectional fluid flow. A core is fixed in a pipe, and a hollow shaft having an extreme end thereof closed by a valve seat and a portion adjacent thereto formed with valve holes is fixed in the core. Within the pipe, there are arranged a hollow cylindrical valve element axially movable using the shaft as a guide and urged in a direction away from the core by a spring, for opening and closing the valve holes, and a plunger, while outside the pipe, there is arranged a solenoid coil. The proportional solenoid valve has a body formed by the pipe, and the component parts for opening and closing the valve are arranged within the pipe, so that it is possible to reduce the size of the proportional solenoid valve, the number of component parts, and machining costs and material costs, which contributes to reduction of costs of the valve. Further, since the operation of the hollow cylindrical valve element for opening and closing the valve holes is not adversely affected by the direction of the fluid flow, it is possible to control a bidirectional flow of fluid.

Abstract translation: 提供能够控制双向流体流动的小型和低成本比例电磁阀。 芯部固定在管中，并且具有由阀座封闭的前端的空心轴和与阀孔相邻的部分固定在芯中。 在管内设有一个中空的圆柱形阀元件，该中空圆柱形阀元件可以使用该轴作为引导件而轴向移动，并且通过弹簧沿远离该芯的方向被推压，用于打开和关闭该阀孔，以及一个柱塞， 设置有螺线管线圈。 比例电磁阀具有由管形成的本体，并且用于打开和关闭阀的部件布置在管内，使得可以减小比例电磁阀的尺寸，部件的数量和 加工成本和材料成本，这有助于降低阀门的成本。 此外，由于用于打开和关闭阀孔的中空圆柱形阀元件的操作不会受到流体流动的方向的不利影响，因此可以控制流体的双向流动。

公开(公告)号：US6152178A

公开(公告)日：2000-11-28

申请号：US467323

申请日：1999-12-20

Applicant: Hisatoshi Hirota ,  Katsumi Koyama

Inventor： Hisatoshi Hirota ,  Katsumi Koyama

IPC: F16K11/07 ,  F16K11/048 ,  F16K31/06 ,  F16K31/42 ,  F25B41/04 ,  F16K11/044

CPC classification number: F25B41/046 ,  F16K11/048 ,  F16K31/423 ,  Y10T137/86839

Abstract: In a four-way directional control valve of simplified construction and reduced manufacturing costs, first and second hollow cylindrical valve elements are arranged coaxially. Adjacent to opposite ends of the valve elements, first and second valve seats and first and second valve closure elements are provided. First and second pressure-regulating chambers are arranged between separator walls of the valve elements and first and second partition walls associated to the first and second valve seats. A pilot valve can be switched between switching positions for introducing high-pressure fluid originating from a first pipe into the first or second pressure-regulating chamber via a common high-pressure passage, a high pressure introducing hole and two pilot holes, respectively, associated to the pressure-regulating chambers. The control valve can be switched into a state where the first pipe communicates with the fourth and the second pipe communicates with the third pipe and to another state where the first pipe communicates with the third pipe and the second pipe communicates with the fourth pipe.

Abstract translation: 在简化结构并降低制造成本的四通方向控制阀中，第一和第二中空圆柱形阀元件同轴布置。 邻近阀元件的相对端，提供第一和第二阀座以及第一和第二阀闭合元件。 第一和第二压力调节室设置在阀元件的分离器壁与与第一和第二阀座相关联的第一和第二分隔壁之间。 可以在用于将来自第一管的高压流体经由共同的高压通道，高压引入孔和两个引导孔分别引入第一或第二压力调节室的切换位置之间切换导阀 到压力调节室。 控制阀可以切换到第一管与第四管连通的状态，第二管与第三管连通，第二管与第三管连通，第二管与第四管连通。

公开(公告)号：US07963354B2

公开(公告)日：2011-06-21

申请号：US11474468

申请日：2006-06-26

Applicant: Futoshi Miyakawa ,  Yukiya Ueda ,  Katsumi Koyama

Inventor： Futoshi Miyakawa ,  Yukiya Ueda ,  Katsumi Koyama

IPC: B60K13/02

CPC classification number: B62J17/00 ,  B62M7/02

Abstract: To provide an air-inlet structure of a motorcycle in which air-inlet ducts can be connected to an air box without providing through holes for allowing passage of the air-inlet ducts on the main frame or bending the air-inlet ducts to bypass a main frame. An engine is supported on a pair of left and right front frames that extend from a head pipe that supports a front wheel rearward and downward. An air box supplies air to the engine and is arranged above the engine. Air-inlet ducts introduce air to the air box and extend on the outer sides of the front frames in a fore-and-aft direction of a vehicle body to be connected to an air-inlet port of the air box at the back of the front frames.

Abstract translation: 为了提供摩托车的空气入口结构，其中进气管可以连接到空气箱，而不设置通孔，以允许空气入口管道在主框架上通过或弯曲进气管道以绕过 主框架 发动机支撑在从支撑前轮向后后方的头管延伸的一对左右前框架上。 一个空气箱为发动机提供空气，并布置在发动机的上方。 空气入口管道将空气引入到空气箱中，并且在前车架外侧沿车身前后方向延伸，以连接到空气箱后部的进气口 前框架

公开(公告)号：US20070004329A1

公开(公告)日：2007-01-04

申请号：US11474468

申请日：2006-06-26

Applicant: Futoshi Miyakawa ,  Yukiya Ueda ,  Katsumi Koyama

Inventor： Futoshi Miyakawa ,  Yukiya Ueda ,  Katsumi Koyama

IPC: F24F13/06

CPC classification number: B62J17/00 ,  B62M7/02

Abstract: To provide an air-inlet structure of a motorcycle in which air-inlet ducts can be connected to an air box without providing through holes for allowing passage of the air-inlet ducts on the main frame or bending the air-inlet ducts to bypass a main frame. An engine is supported on a pair of left and right front frames that extend from a head pipe that supports a front wheel rearward and downward. An air box supplies air to the engine and is arranged above the engine. Air-inlet ducts introduce air to the air box and extend on the outer sides of the front frames in a fore-and-aft direction of a vehicle body to be connected to an air-inlet port of the air box at the back of the front frames.

Abstract translation: 为了提供摩托车的空气入口结构，其中进气管可以连接到空气箱，而不设置通孔，以允许空气入口管道在主框架上通过或弯曲进气管道以绕过 主框架 发动机支撑在从支撑前轮向后后方的头管延伸的一对左右前框架上。 一个空气箱为发动机提供空气，并布置在发动机的上方。 空气入口管道将空气引入到空气箱中，并且在前车架外侧沿车身前后方向延伸，以连接到空气箱后部的进气口 前框架

公开(公告)号：US07028713B2

公开(公告)日：2006-04-18

申请号：US10743439

申请日：2003-12-23

Applicant: Katsumi Koyama

Inventor： Katsumi Koyama

IPC: F16K11/24

CPC classification number: F16K31/406 ,  F16K11/105 ,  F25B41/046 ,  Y10T137/87861 ,  Y10T137/87877

Abstract: The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero. After the second valve is closed, the valve-closed state thereof is maintained by the difference between pressure-receiving areas. The second valve is formed to have a sealing structure using a slidable X packing, whereby the valve-opening stroke can be increased.

Abstract translation: 本发明的目的是提供一种切换阀，其能够在节省空间的同时增加由差压操作的阀的打开行程，从而减小压力损失。 第一阀设置在入口和第一出口之间。 在用于可动塞的背压室之间设置有先导阀，所述后压室保持以与阀座相对的方式设置的阀片和第一出口，使得第一阀由螺线管操作。 第二阀布置在入口和第二出口之间。 用于保持以与阀座和第一出口相对的方式设置的阀片的可移动塞的背压室彼此连通。 第二阀由于通过关闭第一阀而产生的压差打开，当第一阀打开时，第二阀被弹簧关闭，因为差压被减小到零。 在第二阀关闭之后，阀关闭状态由压力接收区域之间的差保持。 第二阀形成为具有使用可滑动的X填料的密封结构，从而能够增加开阀行程。

公开(公告)号：US4831862A

公开(公告)日：1989-05-23

申请号：US64396

申请日：1987-06-22

Applicant: Yoshihiko Ohashi ,  Tadahiko Nagasawa ,  Katsumi Koyama

Inventor： Yoshihiko Ohashi ,  Tadahiko Nagasawa ,  Katsumi Koyama

IPC: B21D5/02 ,  G05B19/18 ,  G05B19/406 ,  G05B19/4061 ,  G05B19/4097

CPC classification number: G05B19/4097 ,  B21D5/004 ,  B21D5/02 ,  G05B19/188 ,  G05B19/406 ,  G05B19/4061 ,  G05B2219/36299 ,  G05B2219/45143 ,  G05B2219/49144

Abstract: In a multistep bending machine, a movable apron (LA) provided with a movable tool (D) is moved in a multistep manner up and down toward a fixed apron (UA) provided with a fixed tool (P) by a hydraulic system including a novel die-axis drive mechanism (DDM), when a foot switch (FS) is kept depressed.In addition, an interference prevention device (IPA), a bending speed determining device (SDA), a tool distance determining device (TDA), a backgage stopper positioning device (SPA), and a backgage stopper pull-back distance controlling device (PDC) are all incorporated in the bending machine to realize a full automatic multistep bending operation.

Abstract translation: 在多步弯曲机中，设置有可动工具（D）的可移动围裙（LA）通过液压系统向具有固定工具（P）的固定围裙（UA）以多步方式向上和向下移动，所述液压系统包括 新型模轴驱动机构（DDM），脚踏开关（FS）保持按压时。 另外，防干扰装置（IPA），弯道速度判定装置（SDA），工具距离判定装置（TDA），后退止动器定位装置（SPA）以及后退距离控制装置 ）全部结合在弯曲机中，实现全自动多步弯曲操作。

公开(公告)号：USD265832S

公开(公告)日：1982-08-17

申请号：US193521

申请日：1980-10-02

Applicant: Yasuhiro Kira ,  Yoshiro Watabiki ,  Nobushiro Aiba ,  Katsumi Koyama

Designer： Yasuhiro Kira ,  Yoshiro Watabiki ,  Nobushiro Aiba ,  Katsumi Koyama

公开(公告)号：US07117895B2

公开(公告)日：2006-10-10

申请号：US11350016

申请日：2006-02-09

Applicant: Katsumi Koyama

Inventor： Katsumi Koyama

IPC: F16K11/24

CPC classification number: F16K31/406 ,  F16K11/105 ,  F25B41/046 ,  Y10T137/87861 ,  Y10T137/87877

Abstract: The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero. After the second valve is closed, the valve-closed state thereof is maintained by the difference between pressure-receiving areas. The second valve is formed to have a sealing structure using a slidable X packing, whereby the valve-opening stroke can be increased.