3569 results about "Pressure regulator" patented technology

A method for controlling flow and concentration of a liquid precursor includes: supplying a carrier gas to a first auto-pressure regulator and outputting therefrom the carrier gas at a first pressure to a precursor reservoir; outputting the mixture of the vaporized precursor and the carrier gas from the precursor reservoir; and supplying the mixture to a second auto-pressure regulator and outputting therefrom the mixture at a second pressure to a reactor via an orifice.

A fluid storage and dispensing system comprising a vessel for holding a fluid at a desired pressure. The vessel has a pressure regulator, e.g., a single-stage or multi-stage regulator, associated with a port of the vessel, and set at a predetermined pressure. A dispensing assembly, e.g., including a flow control means such as a valve, is arranged in gas/vapor flow communication with the regulator, whereby the opening of the valve effects dispensing of gas/vapor from the vessel. The fluid in the vessel may be constituted by a liquid that is confined in the vessel at a pressure in excess of its liquefaction pressure at prevailing temperature conditions, e.g., ambient (room) temperature. In another aspect, the vessel contains a solid-phase sorbent material having sorbable gas adsorbed thereon, at a pressure in excess of 50 psig. The vessel may have a >1 inch NGT threaded neck opening, to accommodate the installation of an interior regulator.

A raw material gas supply apparatus includes a liquid raw material gas supply source, a source tank storing liquid raw material, a gas distribution passage through which raw material gas comprising steam of the liquid raw material is supplied to a process chamber from the source tank, an automatic pressure regulator installed on an upstream side of the gas passage, wherein the automatic pressure regulator keeps supply pressure of the raw material gas at a set value, a supply gas switching valve installed on a downstream side of the gas passage, wherein this valve opens and closes the gas passage, an orifice provided on at least one of an inlet side or outlet side of the valve, wherein the orifice regulates flow rate of the raw material gas, and a constant temperature heating device heats the source tank, the gas passage, the valve and the orifice to a set temperature.

An integral conduit (407) in the formed of stepped tubing defines at least part of a drainage flow path (408/408′) that accommodates a flow rate of at least about 0.15 microliters/minute/mm²/mm-Hg out of the anterior chamber (284) of the eye (266). One or more flow modules (415) may be disposed within this drainage flow path (408/048′) and are located exteriorly of the eye (266). Each flow module (415) may be in the form of a filter or a pressure regulator. In one embodiment, one flow module (415) in the form of a filter is used in combination with another flow module (415) in the form of a pressure regulator.

An energy storage and recovery system includes a renewable power source, a hydrogen generation device in electrical communication with the renewable power source, a hydrogen storage device in fluid communication with the hydrogen generation device, a hydrogen fueled electricity generator in fluid communication with the hydrogen storage device, and a pressure regulator interposed between and in fluid communication with the hydrogen fueled electricity generator and the hydrogen storage device. The pressure regulator is set at an operating pressure of the hydrogen fueled electricity generator.

The present application is directed to a gas-generating apparatus and various pressure regulators or pressure-regulating valves. Hydrogen is generated within the gas-generating apparatus and is transported to a fuel cell. The transportation of a first fuel component to a second fuel component to generate of hydrogen occurs automatically depending on the pressure of a reaction chamber within the gas-generating apparatus. The pressure regulators and flow orifices are provided to regulate the hydrogen pressure and to minimize the fluctuation in pressure of the hydrogen received by the fuel cell. Connecting valves to connect the gas-generating apparatus to the fuel cell are also provided.

An apparatus and method for cleaning either a diesel or a gasoline fuel system. The automatic fuel cleaner apparatus comprises a diesel service portion and a gasoline service portion. The diesel and gasoline service portions each includes a return hose having a first end capable of being coupled to a fuel line outlet of the fuel system. Each service portion further includes a detergent reservoir having an input connected to the return hose. Each service portion also includes a pump having an input connected to an output of the detergent reservoir. The diesel and gasoline service portions each further includes an output hose having a first end connected to a pump output and a second end capable of being coupled to a fuel line inlet. The gasoline service portion also comprises a pressure regulator connected to the output of the gasoline pump.

A fluid storage and dispensing system including a vessel for holding a fluid, an adjustable set point pressure regulator in the interior volume of the vessel, a dispensing assembly in fluid flow communication with the regulator for dispensing fluid at a pressure determined by the set point of the regulator, and an adjusting assembly exterior to the vessel for in situ adjustment of the set point of the internally disposed regulator. By such arrangement, fluid storage and dispensing operations can have respectively differing regulator set point pressures, as for example a sub-atmospheric pressure set point for storage and a super-atmospheric pressure set point for dispensing.

This pressure regulator is specifically designed to operate with a portable compressed gas cartridge thus reducing the high vapor pressure found in compressed gas cartridges down to a substantially consistent outlet pressure. Due to the nature of the crowded regulator art, the soon to be embodied pressure regulator has been specifically embodied for use in the portable compressed gas cartridge harnessing art and this specific use is carried into the claims. Exemplified in the pressure regulator embodiments is a reduced amount of components over existing designs. Additionally, safety and reliability features have been integrated into the design and will shortly be taught in the following paragraphs. A burp-off feature in all embodiments will be exemplified that vents back-pressure spikes as well as a method of adjusting the burp-off back-pressure spikes independent of regulated pressure in some embodiments.

A self-regulating tourniquet has a pressure source, a pressure applicator apparatus associated with the pressure source and operative to apply pressure therefrom to a limb and a pressure regulator associated with the pressure source and the pressure applicator operative to restrict the pressure transferred from the pressure source to the limb to a designated maximum pressure applied to the limb. The pressure source and the pressure applicator may be separate modules that are adapted to be engaged by connecting means and establish gas passage from the pressure source to the pressure applicator.

A container for gas storage tanks in a vehicle is disclosed as part of a fuel storage system. The container is dimensioned to include one or more storage tanks along with a flow control device, such as a pressure regulator or automatic valve. The container does not form a fluid-tight containment around the storage tank and includes one or more ventilation openings to allow a gas within the container to be vented therefrom. There is also one or more drain openings in the container to allow liquid within the container to be drained therefrom.

The present invention provides an electrochemical system and process for the production of very high purity hydride gases and the feed product streams including these hydride gases at constant composition over extended periods of time. The processes and apparatuses of the invention can employ a lined pressure vessel (1) within which resides an electrochemical cell including cathode (2) and anode (3) material. The hydride gas produced within the vessel exits through port (4) to a manifold which contains automatic valve (8) to allow exit of the hydride gas. The hydride gas passes through one or more filters (7). The gas finally exits the manifold through a pressure regulator (6) to the point where it is utilized in semiconductor fabrication. A source of gas (11) for mixing with the hydride gas is also included.

An electric power generation system has a multiple jet ejector assembly for recirculating an exhaust stream. The system includes a fuel cell stack having a reactant stream inlet, a reactant stream outlet and at least one fuel cell. A pressurized reactant supply provides a reactant to the multiple jet ejector assembly. The multiple jet ejector assembly includes two motive flow inlets, one suction inlet, fluidly connected to the reactant stream outlet to receive a recirculated flow from the fuel cell stack, and one discharge outlet, fluidly connected to the reactant stream inlet to provide an inlet stream to the fuel cell stack. A pressure regulator is interposed between the pressurized reactant supply and the two motive flow inlets of the multiple jet ejector assembly. A first solenoid valve is interposed between the first motive flow inlet and the regulator. A second solenoid valve is interposed between the second motive flow inlet and the regulator. A by-pass line connects the pressurized reactant supply to the second motive flow inlet. A by-pass solenoid valve is interposed in the bypass line between the pressurized reactant supply and the second motive flow inlet. During low-load operating conditions, the second solenoid valve is open and the first and by-pass solenoid valves are closed, so that pressurized reactant, controlled by the regulator, is directed to the second motive flow inlet. During high-load operating conditions, the second solenoid valve is closed and the first and by-pass solenoid valves are open, so that pressurized reactant, controlled by the regulator, is directed to the first motive flow inlet and pressurized reactant, not controlled by the regulator, is directed to the second motive flow inlet.

The simulating experiment equipment for local discharge in gas insulated combined electric appliance consists of inducing pressure regulator, no-corona experiment transformer, no-local discharge protecting resistor, standard capacity voltage divider, GIS simulating experimental device, internal UHF antenna sensor and external UHF antenna sensor, microstrip line filtering amplifier, intelligent UHF multiplexer, wide band high speed ultrahigh capacirty digital storage oscilloscope and microcomputer. The simulating experiment equipment and method for local discharge in gas insulated combined electric appliance may be used for simulating various defaults inside GIS to obtain PD experiment data reflecting various kinds of insulation defaults and distinguish the PD modes of the insulation defaults in GIS, so that the present invention may be used widely in relevant theoretical analysis and application research.

A ride control suspension control system having suspension control units with a damper and a single pressure regulator that controls dampening in both the compression and rebound chambers of the damper. The fluid control circuit may include a plurality of check valves that coordinate the flow of fluid to and from both chambers through the pressure regulator. In one embodiment, the system includes a central controller that receives input from a variety of sensors and directly controls operation the pressure regulators in each of the suspension control units without the need for any remote processors. The ride control suspension system may also include wheel position sensors that are external to the accumulator.

A pressure regulator assembly for a fluid system includes a housing having at least one cavity therein and a valve seat disposed in the at least one cavity and having an aperture extending therethrough. The pressure regulator assembly also includes a movable valve member disposed in the at least one cavity of the housing. The valve member has a closed position to engage the valve seat to prevent fluid from flowing into the at least one cavity and an open position to disengage the valve seat to allow fluid to flow into the at least one cavity. The pressure regulator assembly further includes a biasing mechanism disposed in the at least one cavity to bias the valve member toward the valve seat to close the aperture. The valve seat and the valve member and the biasing mechanism are aligned linearly along an axis of the valve housing.

An improved ambulatory infusion device for dispensing a fluid into a patient includes a flexible bladder enclosure having a first open end a closed second end. The closed second end of the sheath is free to conform to the body of the patient so that the device is comfortable when worn. In other aspects, a pressure regulator of the device is adapted to maintain the outlet pressure within a predetermined range of pressures so that the fluid flow rate is substantially constant during fluid flow. A flow restrictor of the device is formed of flexible tubing.

An ambulatory infusion device for dispensing a fluid at a predetermined fluid flow rate includes an elastic bladder having an interior volume for storing the fluid under pressure and an opening for dispensing the fluid. A pressure regulator is in fluid communication with the opening of the bladder and includes an inlet for receiving fluid from the bladder at an inlet pressure and an outlet for discharging the fluid at a predetermined outlet pressure. A valve at the inlet has a hemispheric-shaped head adapted to cooperate with a frustoconic-shaped seat to promote uniform fluid flow therebetween. A movable diaphragm is connected to the valve, and a valve plate opposite a surface of the diaphragm has channels or texture therein. The diaphragm and the valve are movable in response to the fluid pressure acting on the diaphragm surface.

A direct acting pressure regulator controls the flow of a gas from a high pressure source to a low pressure device. Gas is delivered from the regulator at a predetermined outlet pressure. The regulator includes a body having a high pressure inlet and defining a seat. A bonnet is engageable with the body to define a piston chamber within the body and the bonnet. The bonnet has a regulated gas outlet. A piston is disposed within the piston chamber and defines a gap between the piston and a wall defining the chamber. The piston is movable between an open regulator condition and a closed regulator condition. The piston includes a plug having a sealing surface engageable with the seat and movable toward the seat to the closed regulator condition and away from the seat to the open regulator condition. The plug includes axially disposed openings therein for communicating gas from around the plug to a central longitudinal bore in the piston. The piston has an impingement surface in flow communication with the central bore such that gas pressure on the impingement surface exerts a force on the piston to move the piston to the closed regulator condition. A spring urges the piston to the open regulator condition.

A breastpump, manual or motorized, that includes a mechanism to regulate pressure change, e.g., vacuum, within a breastshield chamber, including in some cases to a maintained minimum pressure that is less than ambient (atmosphere). The pressure regulator provides control for varying negative pressure between a minimum value and a maximum value (and values in between), or to achieve a specific actually measured negative pressure value within a breastshield.