摘要:
A mini vertical-and-horizontal valve structure, comprising: a rear water channel 600, connected to an outside pipeline; a first valve 400, disposed vertically in the rear water channel to switch between water routes; a second valve 700, disposed horizontally in the rear water channel; a front water channel 100, connected fixedly to one end of the rear water channel; a push button 200, disposed on the front water channel, to control the first valve and the second valve; and a connection rod 300, with its one end connected fixedly to the push button, and with its other end connected fixedly to the first valve and the second valve. The valve structure is novel in design, compact in structure, a plurality of valves are arranged to dispose vertically or horizontally to reduce space it occupies. A push button is used to control the valves to switch between a plurality of water channels.
摘要:
A system (1) for controlling a flow rate ratio includes a fuel cell comprising an anode for generating a tail gas and having an inlet and an outlet; a fuel reformer for mixing a fuel with the tail gas from the outlet of the anode to generate a reformed stream which is split into first and second branch streams (S1, S2) at a splitting position (Q), the first branch stream returned to the inlet of the anode; a cooler for removing heat from the second branch stream; a bottoming cycle including an external or internal combustion engine driven in response to the cooled second branch stream; a measuring device for measuring differential pressures of two of the main stream, the first branch stream and the second branch stream; and a controlling device for controlling a flow rate ratio of the first branch stream to the main stream in response to the measured differential pressures.
摘要:
A four channel gas delivery system comprising: an inlet channel; four outlet channels; four flow sensors; four control valves, each valve being arranged so as to control the flow from the inlet channel through a corresponding one of the outlet channels; a flow ratio control system configured so as to control the flow from the inlet channel through the corresponding outlet channels so that the following flow ratios are controlled: (a) a first ratio of flows between the outlet channels of a first pair; (b) a second ratio of flows between the outlet channels of a second pair; and (c) a third ratio of flows between the first pair of outlet channels relative to the second pair of outlet channels; wherein the third ratio is controlled by generating at least one bias signal respectively applied to at least one pair of valves, the bias signal being a function of a predetermined set point of the third ratio and measured values of the third ratio.
摘要:
A gas flow regulator comprises a member (26) adjusting the open degree of a throttle valve by adjusting the inclination of a flap (21) with respect to a cross-section area of a channel (25). Means (27) is configured to measure a pressure difference of a gas flowing in the channel by sensing a gas pressure at two positions located directly on said flap on opposite sides thereof. An arrangement has access to gas flow rate characteristics in the form of a so-called C-factor of the throttle valve in dependence of the inclination angle of the flap and is configured to determine the actual gas flow rate from said pressure difference measured and said inclination angle of the flap. The control device (37) is configured to control the member (26) pivoting the flap for adjusting the actual gas flow rate value determined to be a target value for the gas flow rate.
摘要:
Example active flow control systems and methods for aircraft are described herein. An example method includes supplying pressurized air to a plurality of nozzles. The nozzles arranged in an array across a control surface of an aircraft, and the nozzles are oriented to eject the pressurized air in a substantially streamwise direction. The method further includes activating the nozzles to eject the pressurized air in sequence to create a wave of air moving in a spanwise direction across the control surface.
摘要:
A mini water route structure comprises: a water route piece and a plurality of water route switches (1). The water route piece includes: a water input end (3), connected to an outside water route member; a water output end (4), connected to the outside water route member; a water passage channel, with its two ends connected respectively to the water input end (3) and the water output end (4); and a switch installation portion, formed integrally into a body, and is connected to the water passage channel along a direction of a water route. The plurality of water route switches (1) is disposed on the switch installation portion in sequence along the direction of the water route, and are connected in series using their internal water routes. By using mini water route structure, more water route switching can be achieved on a household water utility device.
摘要:
Die Erfindung betrifft eine Drosselvorrichtung 1 zur Veränderung eines Drucks eines Fluids in einer Vielzahl von parallelen Abflüssen 12. Insbesondere betrifft die Erfindung eine variable Drossel, die einen Sammler 10 mit mindestens einem Innenraum, einem Zufluss 11 und einer Vielzahl von Abflüssen 12 für das Fluid sowie ein Steuerelement 20 aufweist, das in dem Innenraum des Sammlers 10 bewegbar angeordnet ist und eine Vielzahl von Öffnungen 21, 22 aufweist, deren Querschnitt durch eine Relativbewegung des Steuerelements 20 gegenüber dem Sammler 10 veränderbar ist. Das Steuerelement 20 ist als eine Hülse 20 ausgeführt, wobei die Öffnungen 21, 22 in der Hülse 20 derart angeordnet sind, dass sie zu den Abflüssen 20 des Sammlers 10 korrespondieren und zwischen Hülse 20 und Sammler 10 Dichtungen vorgesehen sind, sodass in einem Bereich zwischen einer Außenwand 24 der Hülse 20 und einer Innenwand 13 des Innenraum des Sammlers 10 keine Fluidverbindung zwischen den Öffnungen 21, 22 der Hülse 20 vorhanden ist.
摘要:
A method for supplying a specified quantity Q of processing gas while dividing at a desired flow rate ratio Q 1 /Q 2 accurately and quickly from a gas supply facility equipped with a flow controller into a chamber. When a specified quantity Q of gas is supplied while being divided at a desired flow rate ratio Q 1 /Q 2 from a gas supply facility equipped with a flow controller into a reduced pressure chamber C through a plurality of branch supply lines and shower plates fixed to the ends thereof, pressure type division quantity controllers FV 1 and FV 2 are provided in the plurality of branch supply lines GL 1 and GL 2 . Opening control of both division quantity controllers FV 1 and FV 2 is started by an initial flow rate set signal from a division quantity control board FRC for fully opening the control valve CV of the pressure type division quantity controller having a higher flow rate and pressures P 3 ' and P 3 " on the downstream side of the control valve CV are regulated thus supplying a total quantity Q = Q 1 + Q 2 of gas while dividing into the chamber C through orifice holes (3a, 4a) made in shower plates (3, 4) at desired division quantities Q 1 and Q 2 represented by formulas Q 1 = C 1 P 3 ' and Q 2 = C 2 P 3 " (where, C 1 and C 2 are constants dependent on the cross-sectional area of the orifice hole or the gas temperature on the upstream side thereof).
摘要:
A fluid feeding device having a plurality of flow paths disposed in parallel with each other starting at a regulator for pressure regulation, wherein a mass flow controller for flow control or a pressure system flow control device is disposed in each flow path so that the opening and closing operations for fluid supply in each flow path do not provide a transient variation in a stable supply to the other flow paths and, when the fluid supply in a flow path is changed from close to open, a set flow rate is reached a specified delay time after the start of the operation of the mass flow controller in that flow path.