摘要:
A piezoelectrically driven valve and a piezoelectrically driven fluid control device are provided that may control a fluid even if the temperature of the fluid is higher than an operating temperature range of a piezoelectric actuator. The piezoelectrically driven valve includes a valve element for opening and closing a fluid passage, a piezoelectric actuator for driving the valve element by utilizing extension of a piezoelectric element, and a radiation spacer that lifts and supports the piezoelectric actuator away from the fluid passage, and radiates heat that is transferred from fluid flowing in the fluid passage to the piezoelectric actuator, and preferably further includes a support cylinder that houses and supports both of the piezoelectric actuator and the radiation spacer, wherein the support cylinder is made of a material with the same thermal expansion coefficient as that of the radiation spacer, at least at a portion for housing the radiation spacer.
摘要:
An apparatus able to regulate a raw material concentration, in a mixed gas of carrier gas and raw material gas, accurately and stably to supply the mixed gas to a process chamber, with a flow rate controlled highly accurately, thereby detecting a vapor concentration of the raw material gas in the mixed gas easily and highly accurately and displaying the concentration in real time without using an expensive concentration meter, etc.
摘要:
A cam control valve includes a valve casing having a fluid passage and valve seat, a valve disc seated on the valve seat to open and close the fluid passage, a valve stem holding down the valve disc so it contacts the valve seat, a cam acting on the valve stem to hold it down, a motor rotating the cam, a motor holder holding the motor, a supporting frame fixed to the valve casing and supporting the motor holder so it moves vertically, an elastic member biasing the motor holder towards spacing from an upper side portion of the supporting frame, and height adjustable screws suspending the motor holder from the supporting frame, and adjusting a height of the motor holder with respect to the supporting frame, wherein the height adjustable screws are slidably inserted into the upper side portion of the supporting frame and screwed into the motor holder.
摘要:
The purpose of the present invention is to provide an electrochemical element to which a high-concentration and high-viscosity electrolyte is supplied. The electrolyte is dispersed and supplied instantaneously to the electrochemical element in a small fixed quantity.
摘要:
The water hammerless opening device comprises an actuator operating type valve installed on the fluid passage, an electro-pneumatic conversion device to supply the 2-step actuator operating pressure Pa to the afore-mentioned actuator operating type valve, a vibration sensor removably fixed to the pipe passage on the upstream side of the actuator operating type valve, and a tuning box to which the vibration detecting signal Pr detected by the vibration sensor is inputted, through which the control signal Sc to control the step operating pressure Ps′ of the afore-mentioned 2-step actuator operating pressure Pa is outputted to the electro-pneumatic conversion device, and with which the 2-step actuator operating pressure Pa, of the step operating pressure Ps′ which makes the vibration detecting signal Pr nearly zero, is outputted from the electro-pneumatic conversion by adjusting the control signal Sc.
摘要:
The invention supplies a quantity Q of gas while dividing at flow rate ratio Q1/Q2 from a gas supply facility equipped with a flow controller. A total quantity Q=Q1+Q2 of gas is supplied into a chamber at flow rate Q1 and Q2 through shower plates fixed to ends of branch supply lines by providing open/close valves with a plurality of branch supply lines GL1 and GL2, respectively, to supply the specified quantity of gas from the gas supply facility, and by utilizing bypass line BL1 on the downstream side of the open/close valve OV1 and branched from GL1 ,bypass line BL2 on the downstream side of the open/close valve OV2 and branched from GL2 ,pressure type division quantity controller connected to the bypass line BL1 and the bypass line BL2 ,a sensor measuring pressure inside branch supply line GL1 ,and another sensor measuring pressure inside branch supply line GL2.
摘要:
A vaporizer, capable of stabilizing the behavior of pressure inside the vaporizer, includes a chamber having an inlet and an outlet, a heating device that heats the inside of the chamber, a partition wall structure 13 that is provided inside the vaporizer and partitions the liquid material inside the chamber into a plurality of sections, and liquid distribution portions 20 that are provided at the lower portion of the partition wall structure 13 and that allow liquid distribution among the sections partitioned by the partition wall structure 13, and the partition wall structure includes a grid-like, honeycomb-shaped, mesh-like, or pipe-shaped partition wall.
摘要:
A mixed gas supply device includes a plurality of gas supply lines arranged in parallel that include flow rate control devices and outlet side switching valves, wherein gas outlets of respective outlet side switching valves communicate with a manifold, and another gas supply line at a position close to a mixed gas outlet of the manifold supplies a low flow rate gas, wherein an outlet side of the flow rate control device and an inlet side of the outlet side switching valve are hermetically connected via an outlet side connecting fitting of the flow rate control device and a mounting table having a gas passage, wherein a small hole portion is provided at a part of a flow passage at the outlet side connecting fitting and/or a flow passage, which makes the outlet side switching valve and a mixed gas flow passage in the manifold communicate with one another.
摘要:
A control valve device develops opening/closing accuracy of a valve assembly. The valve head 310a is configured to open and close a transfer path formed in the valve housing 305 by transmitting the power to the valve assembly 310 from the power transmission member according to a pressure ratio between working fluid supplied to the first space Us and the second space Ls, respectively. The valve head has a Vickers hardness larger than a Vickers hardness of a valve seat of the transfer path to be in contact with the valve head, and a hardness difference therebetween is set to be about 200 Hv to about 300 Hv.
摘要:
Coupling members each have a fluid channel having an opening passageway orthogonal to an abutting end face of the coupling member, and a slanting main passageway communicating with the opening passageway. The opening passageway has diameter equal to the inside diameter of a gasket holding annular ridge of the coupling member. A gasket has an inside diameter smaller than the diameter of the opening passageway.