A valve apparatus 1 includes a body 5 with a supply passage 53 for gas and a solenoid valve 3 housed in the body 5. The solenoid valve 3 includes a tubular sleeve 30 internally having a flow passage 30c leading to the supply passage 53, and a valve element...

The present invention provides a fuel gas supplying and filling system for a fuel gas consuming unit, the fuel gas supplying and filling system being capable of using a supply passage in both filling and supplying operations and improving the airtightness ...

In this gas injection valve, when operating hydraulic pressure is applied to a hydraulic chamber (51), a toroidal piston (43) and a piston extension portion (44) rise upwards, and an outer circumferential surface of a distal end portion of a needle valve (...

A valve device (20) includes a valve body (4) and a valve seat body (5). The valve seat body (5) has a thick cylindrical shape extending in an axis line direction (Z). The valve seat body (5) includes a seal groove (59) on an outer periphery thereof, the s...

Compressed gas delivery system and process for use thereof wherein compressed gases are withdrawn from compressed gas storage vessels, passed through pressure regulated flow control valves and critical flow venturis to control the mass flow rates of the co...

An LPG fuel heating device configured in such a manner that the heat source for heating LPG fuel which flows through a gas path is provided to a path-forming body at a position outside the gas path. A longitudinal protrusion wall (125) of the gas path, the...