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482results about "Time-programme switches" patented technology

Parallel divided flow-type fluid supply apparatus, and fluid-switchable pressure-type flow control method and fluid-switchable pressure-type flow control system for the same fluid supply apparatus

A fluid supply apparatus with a plurality of flow lines branching out from one regulator for adjustment of pressure, the flow lines being arranged in parallel, wherein a measure is taken that the operation, that is, opening or closing of one flow passage will have no transient effect on the steady flow of the other flow passages. For this purpose, each flow passage is provided with a time delay-type mass flow controller MFC so that when one closed fluid passage is opened, the mass flow controller on that flow passage reaches a set flow rate Qs in a specific delay time DELTAt from the starting point. Also provided are a method and an apparatus for the above in which a plurality of gas types can be controlled in flow rate with high precision by one pressure-type flow control system. To that end, a formula for calculating the flow rate of a gas is theoretically derived that flows with a pressure ratio not higher than the critical pressure ratio. From that formula, the flow factor is defined, so that the formula may be applied to a number of gas types using flow factors. The method includes calculating the flow rate Qc of a gas passing through an orifice according to formula Qc=KP1 (K=constant) with a pressure P1 on an upstream side of the orifice set at twice or more higher than pressure P2 on a downstream side, wherein the flow factor FF for each kind of gas is calculated as follows: <paragraph lvl="0"><in-line-formula>FF=(k/gammas){2/(kappa+1)}1/(kappa-1)[kappa/{(kappa+1)R}]½</in-line-formula>and wherein, if the calculated flow rate of gas type A is QA, and, when gas type B is allowed to flow through the same orifice under the same pressure on the upstream side and at the same temperature on the upstream side, the flow rate QB is calculated as follows: <paragraph lvl="0"><in-line-formula>QB=(FFB/FFA)QA </in-line-formula>where gammas=concentration of gas in standard state; kappa=ratio of specific heat of gas; R=constant of gas; K=proportional constant not depending on the type of gas; FFA=flow factor of gas type A; and FFB=flow factor of gas type B.
Owner:FUJIKIN INC +2

Load balancing and distributing switch-on control for a circuit breaker, an appliance, a device, or an apparatus

The present invention is a load balancing and distributing switch-on/turn-on control for a circuit breaker, an appliance, a device, or an apparatus wherein each switch-on device on a circuit breaker, appliance, device, or apparatus generates and provides a turn-on time delay up to a maximum turn-on time delay so that the turn-on times and respective loads after a power failure from all circuit breakers, appliances, devices, and/or apparatuses are distributed and/or balanced over a turn-on period. The present invention distributes and balances the load and consumption by various appliances, devices, and apparatuses at the time of initial power up after a power failure. The present invention also distributes the turn-on times of the various appliances, devices, and apparatuses at the initial power up time. A circuit system and method for load balancing and distributing switch-on control of an operating device. A micro-controller is able to couple to the operating device and to a power-in bus for receiving power from a power source. A relay switch system is coupled to the micro-controller for controlling the power from the power-in bus. The relay switch system is able to couple to a power-out bus to control the power to the operating device. The micro-controller generates a power-up delay time through which the micro-controller must wait and control the relay switch system to hold the power to the power-out bus before the relay switch is released to supply the power to the power-out bus for operation of the operating device.
Owner:IBM CORP

Electrical switch

An electrical switch for connecting and breaking a circuit including a connecting and breaking mechanism for connecting and breaking the circuit provided with at least a set of movable contacts and stationary contacts; a electromagnetism drive mechanism for controlling the contacts to be actuated so as to realize closed circuit; a housing for accommodating the movable contact and stationary contact; an arc-extinguishing mechanism disposed in the housing and corresponded to the movable and stationary contact; a case connected to a base for accommodating the electromagnetism drive mechanism; a bedplate associated with the case; and a holding mechanism disposed on the bedplate for holding the contacts to connect the circuit, the electromagnetic holding mechanism is electromagnetic and has a set of electromagnetic attracting mechanism in which the movable iron core is made to be a pothook or a baffle mechanism, the movable iron core is attracted so that the pothook or baffle keeps the switch closed by means of hitching or ramming the movable bolt when the electromagnetic attracting mechanism is powered on. The electrical switch has a structure in which it has a breakaway mechanism using winding, in which the remanence being small and the feedback force being large and the action of the limiting current being rapid, it can break the large short current as air switch.
Owner:LIU PING

Electrical switch

An electrical switch for connecting and breaking a circuit including a connecting and breaking mechanism for connecting and breaking the circuit provided with at least a set of movable contacts and stationary contacts; a electromagnetism drive mechanism for controlling the contacts to be actuated so as to realize closed circuit; a housing for accommodating the movable contact and stationary contact; an arc-extinguishing mechanism disposed in the housing and corresponded to the movable and stationary contact; a case connected to a base for accommodating the electromagnetism drive mechanism; a bedplate associated with the case; and a holding mechanism disposed on the bedplate for holding the contacts to connect the circuit, the electromagnetic holding mechanism is electromagnetic and has a set of electromagnetic attracting mechanism in which the movable iron core is made to be a pothook or a baffle mechanism, the movable iron core is attracted so that the pothook or baffle keeps the switch closed by means of hitching or ramming the movable bolt when the electromagnetic attracting mechanism is powered on. The electrical switch has a structure in which it has a breakaway mechanism using winding, in which the remanence being small and the feedback force being large and the action of the limiting current being rapid, it can break the large short current as air switch.
Owner:LIU PING
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