48results about How to "Avoid flow rate" patented technology

A fuel flowmeter (110) for being fed by a pump (112) including an inlet (112a) and an outlet (112b), including: a metering valve (114) including an inlet (114a) and an outlet (114b), and arranged downstream from the outlet of the pump; a delivery circuit (122) connecting the inlet of the metering valve to the inlet of the pump; and a pressure control device (116) comprising a movable flap capable of closing and opening the delivery circuit, wherein a differential pressure detection surface (118) attached to the flap (124) axially defines a first chamber (126) in communication with the delivery circuit and a second chamber (130) in communication with the metering valve outlet, a piston (150) axially defining the second chamber (130) of a third chamber (152) connected to the metering valve outlet, said piston comprising a coupling member (170) capable of engaging with the flap. A second spring (164), provided in the third chamber, maintains the piston uncoupled from the flap. In addition, the control device comprises a channel (154) connecting the second chamber (130) to the third chamber (152).

In an oil pump structure of an automatic transmission using a torque converter, a hydraulic pressure chamber is defined by a pump housing and a pump cover, to rotatably accommodate therein inner and outer rotors. First and second inflow ports respectively communicating with an oil strainer and a control valve are formed in the outside surface of the pump cover separately from each other. First and second oil inflow passages communicating with the respective inflow ports, a merged-flow portion that downstream portions of the first and second oil inflow passages are merged with each other, a downstream-side oil distribution channel intercommunicating a downstream side of the merged-flow portion and the hydraulic pressure chamber, are formed in at least one of the pump housing and the pump cover.

A fluid supply apparatus which supplies fluid to a medical apparatus includes: a pump mechanism including a first pump capable of a suction operation of the fluid after a feeding operation of the fluid, and a second pump capable of a suction operation of the fluid during the feeding operation and a feeding operation of the fluid during the suction operation; a flow path which includes an elastic member and which communicates with the first pump and the second pump and supplies the fluid to the medical apparatus; and a flow path deforming unit which deforms a part of the flow path. The flow path deforming unit starts first deformation of the flow path before the first pump switches from the feeding operation to the suction operation, and completes the first deformation and starts second deformation of the flow path during the feeding operation by the second pump.

In a power steering system comprising a power cylinder for assisting a steering power of a steering mechanism, a hydraulic pump for supplying a hydraulic pressure to the power cylinder, a first oil passage and a second oil passage connecting the power cylinder and the hydraulic pump respectively, a motor for driving the hydraulic pump, and power steering control means for calculating a command value to the motor based on the steering torque, a flow rate of the working oil supplied from a high-pressure side oil passage to a low-pressure side oil passage is restrained at the transition from the end of the steering state (lock end) of the steering mechanism to the returning. The flow-rate restraint increasingly corrects a driving current of the motor in the steering direction or limits the flow rate of the working oil.

The power transmission apparatus may include a control device to carry out idling stop control in such a manner that, when it is detected that an operating means is not operated for a predetermined time or more, an engine is stopped, and a clutch is disconnected, and the supply of the electric power from a battery to a motor generator is interrupted, and when it is detected that the operating means is operated afterwards, the engine is started by a cell motor, and the supply of the electric power from the battery to the motor generator is permitted, and the clutch is connected after the number of revolutions Ne of the engine reaches a predetermined value or more, and the supply of the electric power from the battery to the motor generator is interrupted.

The present invention provides a regulator for medicine infusion capable of preventing a flow rate of a liquid medicine to be injected to a patient from exceeding a predetermined flow rate needed for a patient, and controlling the flow rate of the liquid medicine to be uniformly maintained. The regulator for medicine infusion of the present invention provides the advantages of blocking and continuing the inflow of the liquid medicine by the combination of the elements of the membrane member, the resilient plate and the lever and by the adjusted resilience of the resilient plate, and allowing the liquid medicine to flow at a constant rate by adjusting the resilience of the resilient plate and / or the resilience of the membrane member at predetermined levels. In addition, the regulator for medicine infusion of the present invention provides the advantages of controlling the flow rate of the liquid medicine to be injected to a patient to be uniformly maintained, and being applicable to intravenous bottles or various medicine injectors and being easily installed in them.

In a pressure compensation type flow rate control valve, overshoot of a flow rate when an upstream pressure is abruptly increased is suppressed. A first variable orifice 11 is provided on the side of an inflow opening and a second variable orifice 15 is provided on the side of an outflow opening. As the spool 3 is displaced from its initial position by a pressure of fluid entering when the upstream fluid pressure is increased, the opening of the first variable orifice 11 is gradually reduced, and the opening of the second variable orifice 15 is gradually increased. Since the second variable orifice 15 on the side of the outflow opening is previously reduced, even if the upstream pressure is abruptly increased, fluid more than a predetermined amount does not flow out toward the downstream.

The invention relates to an overall process linear flow flexible protection sleeve material electrochemical machining device and method, and belongs to the field of electrochemical machining. The device is formed by a cathode assembly and an auxiliary assembly. The flow mode of the electrochemical machining method is an overall process linear flow manner, electrolyte flows from the front edge of a blade to the back edge of the blade, and a flow field is in a convergence state; the cathode assembly moves and drives the auxiliary assembly to move at the same time, the electrolyte is supplied in a manner of aligning at a machining area all the time, and it is ensured that the flow field is stable; and in the electrochemical machining process, a flexible insulation block seals a machined area, and scattered corrosion caused by the fact that the electrolyte flows to the machined surface is effectively reduced. By means of the overall process linear flow flexible protection sleeve material electrochemical machining device and method, the sleeve material electrochemical machining flow field stability is better improved; the taper of the blade is reduced, and the machining accuracy is improved; and the surface quality is improved.