Jtekt Corporation

Toyoda Koki Kabushiki Kaisha

Toyo Kogyo Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Toshihiko Shima

Takuya Suzuki

Munetoshi Kuroyanagi

Hiroaki Suzuki

Yoshiyuki Takeuchi

Hidetoshi Fujiwara

Soichi Shirai

Yasuo Niino

Toshikatsu Kubo

Akio Nakamura

Nobuyuki Shirai

Tadayoshi Kamiya

Akira Yamashita

Kazushi Numazaki

Masahiro Ido

Kazuhiko Sugita

Masaaki Kondo

Eiji Okawachi

Tsukuo Ishitoya

Akira Nakano

Yoshio Wakazono

Shusuke Inagi

Kaori Fujita

Koji Kida

Toshio Murakami

Kenji Takahashi

Eiji Fukuta

Hideki Nagano

Hidetsugu Hayashi

Kentaro Hioki

Tomoya Noda

Takashi Iwaguchi

Kazuki Okamura

Teppei Morita

Mutsuo Henmi

Mikio Asai

Tomohiro Shiromaru

Eijii Kato

Minoru Hirano

Takashi Yamazaki

Naohiro Sakamoto

Shungo Kamigaichi

Akio Nakamurai

A valve device includes a body, a joint, a check valve, a valve seat fixation member having an outer peripheral surface on which an external thread is provided, and a sealing member. The body has an attachment hole that attaches the joint and the valve seat fixation member from an outside of the body in a sequence of the joint and the valve seat fixation member, and that has an inner peripheral surface in which an internal thread screwed to the external thread of the valve seat fixation member is provided. The sealing member is provided between the joint and the valve seat fixation member. An outer peripheral edge of the sealing member is located radially inward of a screwed region of the internal thread and the external thread.

Valve device

An electromagnetic valve includes a sleeve having a valve hole at a central portion thereof, a spool, and an electromagnetic solenoid. The sleeve has plural ports penetrating the sleeve between inner and outer peripheral surfaces thereof and disposed side by side in a central axis direction of the valve hole. In the spool, plural lands having an outer peripheral surface facing an inner peripheral surface of the valve hole are provided side by side in the central axis direction. The electromagnetic solenoid is configured to move the spool in the central axis direction in the valve hole. The ports have one or plural recessed portions in which working oil is stored. When the spool is decentered with respect to the sleeve, a pressure of the working oil stored is increased.

Electromagnetic valve

A valve element of a pressure reducing valve includes a taper portion seated on an inner periphery of a valve hole that includes a first area, a second area and a third area in order from an upstream side. The first area is provided such that, when the valve element is open, the height of a passage defined between the first area and the taper portion gradually reduces toward a downstream side. The second area is provided such that the height of a passage defined between the second area and the taper portion is constant when the valve element is open and the entire second area contacts the taper portion when the valve element is closed. The third area is provided such that, when the valve element is open, the height of a passage defined between the third area and the taper portion gradually increases toward the downstream side.

Pressure reducing valve

A valve apparatus includes a body with a supply passage for gas and a solenoid valve housed in the body. The solenoid valve includes a tubular sleeve internally having a flow passage leading to the supply passage, and a valve element and a valve seat that open and close the flow passage. The solenoid valve includes a driving portion that opens and closes the valve element. A seal member is disposed between an outer wall of the sleeve and an inner wall of the body. A tip of the sleeve on a downstream side of the valve element is exposed from the body.

Valve apparatus

The valve unit includes: a body having a charging passage; a supply-side joint that connects a supply pipe; and a check valve that is disposed in the gas passage, and that inhibits gas from being discharged from the gas tank to the outside of the body. The check valve includes a check valve seat, a check valve element that comes into contact with or moves away from the check valve seat, and a positioning member that fixes the position of the check valve seat in the charging passage. The body has a fitting hole which is communicated with the charging passage and in which the supply-side joint and the positioning member are fitted. The positioning member is fitted in a second fitting hole so as to fix the position of the check valve seat even when the supply-side joint has not been fitted in a first fitting hole.

Valve unit comprising a check valve device

A pressure reducer includes a piston slidably accommodated in a cylinder to define a decompression chamber and a pressure adjusting chamber. A seal member includes an elastic member and a sliding portion. The sliding portion is pressed by the elastic member such that the sliding portion slides on an inner circumferential surface of the cylinder. An annular member is located on an outer circumferential surface of the piston and between the seal member and the pressure adjusting surface. The annular member is pressed against the inner circumferential surface of the cylinder with a force that is less than a force with which the sliding portion is pressed against the inner circumferential surface of the cylinder. Thus, the pressure reducer prevents the piston from being moved by an excessive amount with highly accurately adjusting pressure.

Pressure reducer

In a valve device for selectively opening and closing a flow passage formed to open on a valve seat by a valve body through a resin-made seat, a hollow portion is formed on either one of the valve body and the valve seat and receives the resin-made seat therein, the resin-made seat has a thickness so that the resin-made seat partly protrudes from the hollow portion, and when the valve body is operated to close the flow passage, the resin-made seat is compressed to bring an end surface of the valve body into contact with the valve seat.

Valve device and manually operated shutoff valve device

A valve device includes: a valve member that controls flow of a fluid, and a body that has a valve insertion hole in which the valve member is inserted, and whose inner surface is cylindrically formed, and into which the fluid flows, and a lead-in passage that has an opening in the inner surface of the valve insertion hole, and that causes the fluid to flow into the valve insertion hole. A line representing the direction of extension of the lead-in passage is tilted from a line normal to the inner surface of the valve insertion hole at a position of the opening of the lead-in passage, in a view in the axis direction of the valve insertion hole.

A fluid supply valve attachment device that has a tank, a fixing member in which a recessed fitting section is formed, a fluid supply valve that is inserted in and fixed to the recessed fitting section, a first seal member which seals a space between the tank and the fixing member, and a second seal member which seals a space between the fixing member and the fluid supply valve. The maximum inside diameter of the recessed fitting section is defined as D, a distance between a cross-sectional center of the first seal member and a cross-sectional center of the second seal member in a direction that a central axial line of the recessed fitting section extends in an attached state is defined as L, and Lis set within 2.5&#xd7;D.

Fluid supply valve attachment device

A plug body housinghas a receiving recess, and the receiving recessincludes a first recessopening toward the outside and a second recessconnected to the first recess. Check valvesandare provided in the second recess, and a manual valveis provided in the first recess. An internal threaded portionis formed in an inner circumferential surface of the first recess, and a housingof the manual valveis threaded into the internal threaded portion. The check valvesandare held between a bottom surfaceof the second recessand a bottomof the housingso that the check valvesandare secured in the second recess

Valve device assembling structure, plug body, and manual valve

An annular mating portion extends from a fastening surface of a fastening nut. The mating portion has an inner diameter set to be substantially equal to an outer diameter of the portion of a piston in which an accommodating groove is formed. In a state in which the mating portion is inserted into the accommodating groove, and an inner circumferential surface of the mating portion slides in contact with a circumferential wall of the accommodating groove, the fastening nut is mated with a threaded portion, and a lip seal is held between the mating portion and the accommodating groove. This fixes the lip seal to the piston.

Pressure-reducing valve

A high pressure valve for hydrogen gas includes a valve seat and a valve member, which is movable to selectively open and close the valve seat. One of the valve member and the valve seat is formed of austenitic stainless steel, and the other one of the valve member and the valve seat is formed of flexible synthetic resin or soft metal.

High pressure valve for hydrogen gas and decompression device for hydrogen gas

In order to obtain a solenoid valve device installed in a gas tank that is small in size and easy to attach to a gas tank, a valve body () including a flow passage (a) formed therein to communicate the inside and the outside of a gas tank () is inserted to the inside from the outside through a mouth hole () of the gas tank () and attached to the mouth hole (). A valve seat () is provided in the flow passage (a), and a movable valve element () attached to or detached from the valve seat () is provided in the valve body (). A solenoid unit () includes a movable core () engaged with the valve element () and a fixed core () facing the movable core () to attract the movable core () by the energization of a coil () and distract the movable core () by the non-energization of the coil (). The solenoid unit () is arranged inside a storage hole () formed at an end part of the valve body () inside the gas tank (). A cap member () is provided to cover the end part of the valve body () inside the gas tank (). An opening () formed in an end face of the cap member () communicates with the flow passage (a), and a flat plate-like filter member () is disposed in the opening ().

Solenoid valve device installed in gas tank

An excess flow valve includes: a valve that opens and closes a flow path; a solenoid that keeps the valve in an opened state; a pressure detector detecting the primary-side pressure of the valve; and a controller controlling current flow to the solenoid based on pressure detected by the pressure detector so that the valve is closed when the flow rate supplied to the valve is at or more than a predetermined amount. The excess flow valve can be used in a wide variety of applications and prevents a flow of fluid at or greater than a desired flow rate even if the primary-side supply pressure varies.

Excess flow valve

A stop valve for a gas tank is provided which achieves favorable sealing performance by inhibiting rotation of a sealing member attached to a valve element. A passage is formed inside a valve body, and a valve seat is provided in the passage. The valve element which is engaged and disengaged from the valve seat is slidably inserted to a sliding hole bored in the valve body. The annular sealing member is arranged in sliding contact with the outer peripheral surface of the valve element and the inner peripheral surface of the sliding hole. A screw hole connecting to the sliding hole and coaxial thereto is provided in the valve body. A rotating operation member having a male screw is rotatably screwed into the screw hole from the outside of the valve body. One end of the rotating operation member is made to abut the valve body.

Stop valve for gas tank

Growing community of inventors

Okazaki, Japan

Toshihiko Shima