923 results about "Outlet Port Valve" patented technology

A disposable pumping cassette in one embodiment includes a pump chamber; and a valve chamber in communication with the pump chamber, the valve chamber including an inlet and first and second outlets. A disposable pumping cassette in another embodiment includes a first valve chamber including an inlet and first and second outlets; and a second valve chamber including an inlet and an outlet, the second valve chamber openable to allow dialysis fluid to flow through one of the first and second outlets of the first valve chamber, through the outlet of the second valve chamber. A disposable pumping cassette in a further embodiment includes a valve chamber including a fluid inlet and first and second fluid outlets; and a flexible sheet openable to open and close only one of the first and second outlets.

In piston pumps for brake systems used until now, there were often noise problems, from pressure pulsations. In the piston pump for brake systems proposed here, a pulsation-smoothing device (40) that functions effectively well is provided in the region of the outlet valve (24). As a result, substantially less noise occurs, and the durability of the piston pump (1) is substantially better. The piston pump is used essentially in traction-controlled motor vehicle brake systems.

A urine collection device (10) that is made up of a flexible, thermoplastic urine collection bag (20), which receives urine through a molded plastic inlet fitment (30) that is secured to an upper end of the bag 5 and discharges urine through a two-piece molded plastic valve fitment (40) at a lower end of the bag. The inlet fitment, which has no check valve therein, has a series of steps gradually reducing lateral extent as it extends longitudinally from the bag to a free end thereof, and each of the steps extends at a non-perpendicular angle to the longitudinal central axis of the inlet fitment. The bag is also free of any check or flutter valve. The outlet valve fitment has a fixed outer element (42) surrounding an inner element (44) that is rotatable with respect to the outer element to selectively open or close the outlet valve fitment to flow.

An apparatus automatically carries out an integrity test on a filter device having a fluid inlet, a fluid outlet and a venting port. The apparatus includes a filter integrity testing device having a pressure sensor and/or a flowmeter. An inlet connector is connectable to the fluid inlet, is connected via a wetting liquid supply valve to a wetting liquid supply, and is connected via a drainage valve to a first drain. An outlet connector is connectable to the fluid outlet and via an outlet valve to the first or a second drain. A venting port connector is connectable to the venting port and via a measurement valve to the pressure sensor and/or flowmeter. The venting port connector also is connected via a venting valve to a venting pipe, and via a measurement gas valve to a measurement gas source. The valves are controlled by the filter integrity testing device.

An airless dispensing pump assembly including a pump mechanism with an inlet valve configured to efficiently pump a viscous fluid and to allow prefilling when the pump mechanism is attached to a container. In one form, the inlet valve includes a sealing member that seals the pump inlet and an outer support member that secures the inlet valve to the remainder of the pump mechanism. Two or more legs extend in a circular direction between the support member and the sealing member to form a large flow opening for fluid flow through the inlet valve when open and to rapidly close the flow inlet valve. The pump mechanism also includes an outlet valve configured to draw back fluid from the nozzle of the pump after dispensing, thereby minimizing buildup around the nozzle.

A fluid dispenser for germ-free fluid is described incorporating at least one material being capable of interacting via an oligodynamically active substance. The dispenser includes a metering pump and inlet and outlet valves. The fluid coming into contact with at least one oligodynamically active substance is present in the region of the outlet valve, of the inlet thereto and/or the outlet therefrom.

A method of pumping a fluid includes: providing a pressurizer for pressurizing the fluid, the pressurizer including at least two storage tanks, where, for each storage tank, the pressurizer includes a propellant entrance valve, a propellant exit valve, a pressurant entrance valve, and a pressurant exit valve, where each of the storage tanks is configured to be filled with the fluid under a low pressure and drained of the fluid under a high pressure by the force of a pressurant; and for each storage tank, opening and closing its associated valves in cycles to sequentially fill and drain the storage tank of the fluid, the cycles each having a cycle time between approximately 1 and 500 milliseconds.

A flow switch assembly which includes a valve housing that includes an upper body portion and a lower body portion that are rotatably engaged relative each other. The upper and lower body portions define a chamber. The housing includes an inlet and outlet to the chamber. A valve member seated in the chamber of the valve housing for movement between an open position establishing at least one passage between the inlet and the outlet and a closed position wherein the at least one passage between the inlet and the outlet is non-established. Interactive cam elements are associated with at least one of the upper body portion and the lower body portion, and associated with the valve member, are provided for moving the valve member between the open position and the closed position when the upper body portion of the housing is rotated relative to the lower body portion.

The hollow fiber membrane separator includes membeane assembly, control valve, pressure gauge, pump, air compressor, water tank, connecting pipes and other parts; and features that the upper mouth ofthe membrane assembly is connected via a back washing flow meter as well as a back washing regulating valve in one channel and a back washing automatic valve to the back washing pump pipe and the back washing pump via its inlet valve is connected to back washing water tank pipe in one channel and discharge valve pipe in the other channel; that the back water tank is connected to the filtering liquid outlet valve pipe via change-over valve and filtering liquid flow meter with the change-over valve being connected to circular water tank. The running process includes two steps in different cleaning states. The present invention makes it possible to realize ideal membrane separation and membrane cleaning.

A method and system for controlling an electrohydraulic braking system for a motor vehicle having an antilock braking control function and an electrically controllable pressure generating device having a cylinder-piston arrangement having a hydraulic pressure chamber and a piston displaceable by an electromechanical actuator so that a predetermined pressure can be set in the chamber, and having a number of hydraulically wheel brakes connected to the hydraulic pressure chamber by an electrically actuatable inlet valve and to a pressure medium reservoir by means of an electrically actuatable outlet valve. The cylinder-piston arrangement is actuated in case of antilock controlling at all wheel brake for setting an individual wheel target pressure at each wheel brake, such that the pressure in the hydraulic pressure chamber is set to the greatest wheel target pressure.

One aspect of the invention pertains to a device for mixing and dispensing fluids, which generally includes a housing; a mixing chamber having a first inlet for introducing a first fluid into the mixing chamber, a second inlet for introducing a second fluid into the mixing chamber, and an outlet through which fluid may exit the mixing chamber; and a valving rod received within the mixing chamber and movable between an open position, in which the first and second inlets are in fluid communication with the mixing chamber, a cleaning position, in which the valving rod substantially seals closed the first inlet but does not seal closed the second inlet, and a closed position, in which the valving rod substantially seals closed the first and second inlets.

A pressurizer for pressurizing a fluid includes: at least two storage tanks, where, for each storage tank, the pressurizer further includes: a propellant entrance valve, a propellant exit valve, a pressurant entrance valve, and a pressurant exit valve, where each of the storage tanks is configured to be filled with the fluid under a low pressure when its propellant entrance and pressurant exit valves are open and its propellant exit and pressurant entrance valves are closed, and to be drained of the fluid under a high pressure by the force of a pressurant when its valves are reversed, where its valves are configured to be opened and closed in a cycle to sequentially fill and drain the storage tank of the fluid, the cycle having a cycle time of between 1 and 500 milliseconds, and where the cycles of the valves of the storage tanks are out of phase with each other such that at some time in which one storage tank is being filled with the fluid, at least one other storage tank is being drained of the fluid. The pressurizer may be used as a propellant pump in a rocket engine.

An air outlet valve for use in an aircraft is adapted during normal operation of the aircraft as a component of a cabin pressure control system for adjusting a desired pressure level in an aircraft cabin to remove air from an interior of the aircraft into the environment around the aircraft. The air outlet valve is further adapted during emergency ventilation operation of the aircraft as a component of a system for emergency ventilation of the aircraft cabin to introduce air from the environment around the aircraft into the interior of the aircraft. The air outlet valve comprises a nose-side valve flap, which is pivotable about an axis and is adapted to open or close a nose-side portion of an air outlet valve aperture, and a tail-side valve flap, which is pivotable about an axis and is adapted to open or close a tail-side portion of the air outlet valve aperture. A portion of the tail-side valve flap that in the open state of the tail-side valve flap projects into an air stream flowing around an aircraft skin during cruising of the aircraft is greater than a portion of the nose-side valve flap that in the open state of the nose-side valve flap projects into the air stream flowing around the aircraft skin during cruising of the aircraft.

The fuel alcohol dewatering apparatus a rectification tower and a stripping tower connected serially, two parallel molecular sieves with valves in the inlets and the outlets, an overheater, a product cooler, a material preheater, a feeding pump, a waste water pump and a vacuum pump. The present invention has low power consumption, high energy recovering rate, no environmental pollution and high production efficiency.

The invention provides a firefighting extinguishment module which is large in power, long in an extinguishment water flow range and is high in system independence, and a control system. The system has high independence, and mains supply is not needed; and the module is easy to operate and can be started by one key. A radio remote control device is arranged in the module; and the remote control distance is more than 150 meters, and the distance between an operator and a fire source is more than 300 meters, so that the safety of the operator is effectively protected. The module comprises a box body, a diesel engine, a water collection device, a firefighting water pump, a pump outlet valve, a clutch, a vacuum air extractor, a fire plug, a fire monitor, a water cooling system and a hydraulic system; a water inlet of the firefighting water pump is connected with the water collection device; a water outlet is connected with a lower port of the fire monitor through the pump outlet valve; a rotation shaft of the firefighting water pump is connected with an output main shaft of the diesel engine through the clutch; an auxiliary output shaft of the diesel engine is connected with the hydraulic system through a transmission chain; the control end of a driving motor of a vacuum air pump is connected with a hydraulic oil system; and an air exhaust port of the vacuum air pump is communicated with the water collection device.

A diaphragm pump for a seat adjusting device comprises a diaphragm and a valve member which define a pump chamber therebetween. An inlet valve and an outlet valve are formed on the valve member. A pressure chamber is in fluid communication with the outlet valve and receives fluid discharged from the pump chamber via the outlet valve. One of the diaphragm and the valve member comprises a valve membrane of a pressure relief valve integrated in the pump. The valve membrane is integrally formed with the one of the diaphragm and the valve member. The valve membrane is moveable between a first configuration in which the valve membrane closes a pressure relief channel and a second configuration in which the valve membrane opens the pressure relief channel to allow fluid to be discharged from the pressure chamber.

The invention discloses a coal rock pressure-maintaining coring inner barrel. An inner rubber sleeve is inserted into an outer tube of a rock core holding barrel, a confining pressure cavity is formedbetween the inner rubber sleeve and the inner wall of the outer tube of the holding barrel, sealing plugs and sealing rings are arranged at the two ends of the inner rubber sleeve, the sealing plug and the sealing ring at the upper end are used in cooperation to seal an upper end opening of the confining pressure cavity, the sealing plug and the sealing ring at the lower end are used in cooperation to seal a lower end opening of the confining pressure cavity, one end of an upper end connecting piece is connected with the upper end of the rock core holding barrel in a sealed mode, the other end of the upper end connecting piece is connected with a pressure supply bin, the pressure supply bin is communicated with the confining pressure cavity through a pressure supply pipeline, and a pressure supply valve is arranged on the pressure supply pipeline and used for controlling supply of fluid of reference pressure; and one end of a lower end connecting piece is hermetically connected with the lower end of the hollow rock core holding barrel, the other end of the lower end connecting piece is connected with a ball valve, an outlet pipeline is arranged at the upper end of the rock core holding barrel, and the outlet pipeline at the upper end is provided with an upper end outlet valve. By means of the coal rock pressure-maintaining coring inner barrel, accurate measurement of the gas content can be guaranteed, and the coal rock stratum condition permeability can be tested without taking out a rock core.