104results about How to "Relieve supply pressure" patented technology

Provided is a universal interface adapted for providing continuous positive airway pressure to a patient when the interface is used with a standard ventilator. The interface is configured to operate at a supply pressure no greater than about 120 centimeters of H2O in order to deliver pressure to the patient of up to about 15 cm of H2O at a flow rate of up to about 12 liters / minute. The universal interface may comprise an interface body having a space pair of breathing passageways intersecting a corresponding of supply passageways. Each one of the breathing passageways is comprised of a patient passageway and an exhalation passageway. Each one of the supply passageways includes a jet venturi having a taper portion. Each one of the exhalation passageways includes a taper portion which tapers outwardly along a direction from the patient passageway toward the exhalation passageway.

The invention provides a gas turbine installation, a cooling air supplying method, a method of modifying a gas turbine installation, which can reduce the amount of compressed air extracted for cooling of an exhaust plenum and which can increase energy efficiency. The gas turbine installation comprises an exhaust plenum comprising an exhaust casing connected to the downstream side of a turbine and made up of an outer casing and an inner casing, and an exhaust diffuser made up of an outer diffuser and an inner diffuser, which are disposed between the outer casing and the inner casing; a first cooling system for introducing, from the outer peripheral side of the outer diffuser, cooling air for cooling the exhaust plenum; and a second cooling system for introducing, from the inner peripheral side of the inner diffuser, cooling air for cooling the exhaust plenum.

A hydraulic circuit control device that selectively supplies oil to a first oil passage and a second oil passage by an oil pump, the control device includes: an oil passage switching unit adapted to connect the oil pump to either the first oil passage or the second oil passage; a control mode switching unit adapted to switch the control mode of the electric motor to either a torque control mode or a speed control mode; an oil passage selecting unit adapted to select whether to connect the oil pump to the first oil passage or the second oil passage; and a control unit adapted to perform control so that the control mode switching unit switches the control mode to the torque control mode when the first oil passage has been selected, and perform control so that the control mode switching unit switches the control mode to the speed control mode when the second oil passage has been selected.

The invention provides a gas turbine installation, a cooling air supplying method, a method of modifying a gas turbine installation, which can reduce the amount of compressed air extracted for cooling of an exhaust plenum and which can increase energy efficiency. The gas turbine installation comprises an exhaust plenum comprising an exhaust casing connected to the downstream side of a turbine and made up of an outer casing and an inner casing, and an exhaust diffuser made up of an outer diffuser and an inner diffuser, which are disposed between the outer casing and the inner casing; a first cooling system for introducing, from the outer peripheral side of the outer diffuser, cooling air for cooling the exhaust plenum; and a second cooling system for introducing, from the inner peripheral side of the inner diffuser, cooling air for cooling the exhaust plenum.

A hydraulic circuit control device that selectively supplies oil to a first oil passage and a second oil passage by an oil pump, the control device includes: an oil passage switching unit adapted to connect the oil pump to either the first oil passage or the second oil passage; a control mode switching unit adapted to switch the control mode of the electric motor to either a torque control mode or a speed control mode; an oil passage selecting unit adapted to select whether to connect the oil pump to the first oil passage or the second oil passage; and a control unit adapted to perform control so that the control mode switching unit switches the control mode to the torque control mode when the first oil passage has been selected, and perform control so that the control mode switching unit switches the control mode to the speed control mode when the second oil passage has been selected.

Provided is a universal interface adapted for providing continuous positive airway pressure to a patient when the interface is used with a standard ventilator. The interface is configured to operate at a supply pressure no greater than about 120 centimeters of H2O in order to deliver pressure to the patient of up to about 15 cm of H2O at a flow rate of up to about 12 liters / minute. The universal interface may comprise an interface body having a space pair of breathing passageways intersecting a corresponding of supply passageways. Each one of the breathing passageways is comprised of a patient passageway and an exhalation passageway. Each one of the supply passageways includes a jet venturi having a taper portion. Each one of the exhalation passageways includes a taper portion which tapers outwardly along a direction from the patient passageway toward the exhalation passageway.

The present invention reduces the unevenness of injection rates of cylinders in a fuel supply system of a direct injection engine which uses a variable-displacement single plunger pump. The unevenness of injection rates of cylinders can be reduced by constructing so that the cam 100 which drives the high-pressure fuel pump 101 may make one reciprocation while the engine makes explosions by two cylinders and causing the controller 55 to extend the injection time width of one of two injectors 54 which inject while one discharge of the high-pressure fuel pump and to shorten the injection time width of the other injector.

When a pressure of fuel supplied to an engine is higher than a target, the fuel is carried in a reverse direction by rotating a fuel pump in reverse, and in accordance therewith, the fuel pressure is made to fall with good responsiveness.

An energy-saving valve includes a spool-driving unit which changes the position of a spool to a position at which compressed air is discharged from a first output port without pressure control and includes a pressure control unit which changes the position of the spool to a position at which compressed air is discharged from a second output port in a predetermined pressure level due to pressure control. The pressure control unit includes a pressure control piston, a pressure-receiving surface which enables air pressure in the second output port to act on the pressure control piston, a cylinder chamber, a pressure control channel, and an elastic member which applies biasing force to the pressure control piston in a direction opposite to the action of air pressure on the pressure-receiving surface to determine pressure.

A system for supplying fuel to a gas turbine includes piping containing fuel at a pressure greater than approximately 500 psi. A pressure reducing valve connected downstream of the piping reduces the pressure of the fuel to less than approximately 200 psi. A heat exchanger connected downstream of the pressure reducing valve heats the wet saturated fuel or dry saturated fuel to produce a superheated fuel. A control valve connected downstream of the heat exchanger reduces the pressure of the superheated fuel to less than approximately 50 psi. A method for supplying superheated fuel to a gas turbine includes receiving fuel having a pressure greater than approximately 500 psi and reducing the pressure to less than approximately 200 psi. The method further includes separating gaseous fuel from liquid fuel, reducing the pressure of the gaseous fuel to less than approximately 50 psi, and flowing the superheated fuel to the gas turbine.

Diesel engine fuel supply systems are provided that are preferably adapted to reduce fuel pressure loss. Preferred fuel supply systems comprise a fuel supply line for providing fuel from a fuel tank to a fuel injector through a prime pump and fuel filter. A first fuel return line is configured to return the residual fuel in the fuel injector to the fuel tank. A second fuel return line is configured to return the residual fuel in the fuel injector to the fuel filter. A heater heats up the fuel passing through the second fuel return line. A bypass line is suitably equipped to directly provide the fuel to the fuel injector through the fuel filter without passing through the prime pump.

The invention relates to an aircraft, in particular to an airplane, having at least one fuel cell, having at least one supply line which connects the fuel cell to a fuel supply, having at least one outlet line by means of which fuel supplied by the supply line and not consumed in the fuel cell is drained off and having means for the influencing of the fuel flow through the fuel cell as well as having means for the influencing of the fuel flow through the fuel cell, with the means for the influencing of the fuel flow having a pressure regulator located in the at least one supply line and a restrictor member located in the at least one outlet line, with the pressure regulator regulating the pressure of the fuel supply to the operating pressure of the fuel cell and with the restrictor member reducing the flow of the fuel flowing through the outlet line.

A ventilation device for a high pressure turbine rotor in a turbomachine, the turbine comprising upstream and downstream turbine disks fitted with blades, the device comprising a cooling circuit being supplied by a cooling airflow D taken from the back of the combustion chamber. The circuit is such that the airflow passes through orifices formed in an upstream flange of the upstream disk, such that this airflow circulates in the axial direction towards the downstream side between an inner reaming of the upstream disk and a downstream flange of the downstream disk, the device also comprising a labyrinth inserted between the two disks, such that the airflow is divided into a first flow F1 and a second flow circulating on each side of labyrinth towards the blades.

The invention provides a backlight module and a liquid crystal display device. A liquid crystal module comprises a light panel, a backplane and a middle frame, wherein the backplane is located below the light panel, and a first vertical plate is located on the edge of the backplane and extends towards the light panel; the middle frame comprises a second vertical plate and a third vertical plate which are arranged on two sides of the first vertical plate and a first support portion which is vertically connected with the second vertical plate and the third vertical plate; a plurality of buckle protrusions which are arranged at intervals are arranged on the side face of the first vertical plate, and buckle grooves which are matched with the buckle protrusions are formed in the second vertical plate; the second vertical plate further comprises a drop proof groove which is located on the end portion and a guide arm which is connected with the buckle grooves and the drop proof groove. The liquid crystal display device comprises a panel and the liquid crystal module. According to the backlight module and the liquid crystal display device, fixation with no screw of a front frame and the backplane can be achieved, the work efficiency of a complete machine assembling factory is improved, and the product appearance is optimized.

A turbocharger is provided with a rotor shaft and a semi-floating bearing arranged in a bearing chamber and rotatably supporting the rotor shaft. The semi-floating bearing has a pair of bearing portions located at two longitudinal ends. A region between the pair of bearing portions in an outer peripheral surface of the semi-floating bearing and an inner peripheral surface of the bearing chamber constitute an outside oil feed chamber to supply a lubricant oil to outer peripheral surfaces of the pair of bearing portions. A groove extending in a circumferential direction is formed in the outer peripheral surface of at least one of the bearing portions. An oil feed passage to supply the lubricant oil to the outside oil feed chamber and a discharge passage opposed to the groove and configured to discharge the lubricant oil in the groove downward are formed in the bearing housing.

The invention discloses a thermal self-adaptive variable configuration wing, and relates to the field of reusable hypersonic aircraft thermal protection. The thermal self-adaptive variable configuration type wing comprises a high temperature heat pipe structure, a high temperature shape memory alloy structure, a telescopic structure, a connecting rod system and a wing leading edge. The wing leading edge is of a hollow-rod structure. One axial end of the wing leading edge is fixedly mounted on the outer wall of an outer aircraft body. The high temperature heat pipe structure is fixedly mountedon one side of the wing leading edge. The high temperature heat pipe structure is located at the connecting position of the wing leading edge and the outer aircraft body. The telescopic device is fixedly mounted on the outer wall of the outer aircraft body, and is fixedly connected with one axial end of the high temperature heat pipe structure. The shape memory alloy structure is arranged on the outer wall of the high temperature heat pipe structure in a sleeving mode. The telescopic device is connected with the wing leading edge by the connecting rod system. A traditional motor driving systemis not required. The structure is simple, the weight is low, and a control feedback system is not needed. Variable configuration design of aircraft wing surfaces is achieved by a thermal self-adaptive variable configuration principle, and therefore overall performance of a hypersonic aircraft can be improved.

A system and method to reduce the gas fuel supply pressure requirements of a gas turbine, which results in an increased operability range and a reduction in gas turbine trips. According to the method, the gas turbine is allowed to start and operate at supply pressures determined as a function of ambient conditions and gas turbine compressor pressure ratio. This increases the operability window, and reduces or eliminates the need for gas fuel compressors.

An energy-saving valve includes a spool-driving unit which changes the position of a spool to a position at which compressed air is discharged from a first output port without pressure control and includes a pressure control unit which changes the position of the spool to a position at which compressed air is discharged from a second output port in a predetermined pressure level due to pressure control. The pressure control unit includes a pressure control piston, a pressure-receiving surface which enables air pressure in the second output port to act on the pressure control piston, a cylinder chamber, a pressure control channel, and an elastic member which applies biasing force to the pressure control piston in a direction opposite to the action of air pressure on the pressure-receiving surface to determine pressure.

A portable radiant heater supplied by an associated fuel source comprises a housing having a handle for transporting the heater. A plenum in the housing receives fuel from the associated fuel source and mixes the fuel with air. A burner assembly includes a radiant surface that communicates with the plenum. A regulator limits the pressure of the associated propane source to approximately eleven inches water column, and an oxygen depletion system associated with the burner assembly automatically shuts off the heater at a predetermined oxygen content. A tank fitting with a position that can be adjusted relative to the regulator facilitates the installation of the associated fuel source to the heater.

The control unit of the fuel cell system monitors the status of power generation of the fuel cell and calculates a total amount of the fuel gas consumption, based on the amount of power generated by the fuel cell, from a point in time when the supply gas pressure reaches a standard gas pressure. Another total amount of the fuel gas consumption is calculated based on a gas pressure change that corresponds to a decrease of the gas pressure from the standard gas pressure. Comparing two total amounts of the fuel gas consumptions, the evaluation is performed as whether the on-off valve in the fuel gas flow path from each of the fuel gas tanks to the fuel cell fails to be opened.

A portable radiant heater supplied by an associated fuel source comprises a housing having a handle for transporting the heater. A plenum in the housing receives fuel from the associated fuel source and mixes the fuel with air. A burner assembly includes a radiant surface that communicates with the plenum. A regulator limits the pressure of the associated propane source to approximately eleven inches water column, and an oxygen depletion system associated with the burner assembly automatically shuts off the heater at a predetermined oxygen content. A tank fitting with a position that can be adjusted relative to the regulator facilitates the installation of the associated fuel source to the heater.

The invention is a film cooled article such as a turbine engine blade or vane, having a wall with a hot surface 26 to be film cooled. The hot surface 26 includes a depression 48 featuring a descending flank 52 and an ascending flank 54. Coolant holes 60, which penetrate through the wall, have discharge openings residing on the ascending flank 54. During operation, the depression locally over-accelerates a primary fluid stream F flowing over the ascending flank while coolant jets 70 concurrently issue from the discharge openings. The local over-acceleration of the primary fluid deflects the jets onto the hot surface and spatially constrains the jets thus encouraging them to spread out laterally and coalesce into a laterally continuous, protective coolant film. In one embodiment, the depression 48 is a trough 50. In another embodiment, the depression is a dimple 72.

A portable radiant heater supplied by an associated fuel source comprises a housing having a handle for transporting the heater. A plenum in the housing receives fuel from the associated fuel source and mixes the fuel with air. A burner assembly includes a radiant surface that communicates with the plenum. A regulator limits the pressure of the associated propane source to approximately eleven inches water column, and an oxygen depletion system associated with the burner assembly automatically shuts off the heater at a predetermined oxygen content. A tank fitting with a position that can be adjusted relative to the regulator facilitates the installation of the associated fuel source to the heater.

The invention discloses a natural gas and electrical coupling heating system based on a heat supply base station. The system is composed of an electric boiler, a heat accumulator, a gas-fired boiler, a pipeline instant electric heater, corresponding heat supply pipeline and corresponding accessory equipment. According to a heat supply mode, at night, the gas-fired boiler and the pipeline instant electric heater are coupled for supplying heat, the electric boiler heats working media in the heat accumulator and a standby gas-fired boiler, and electric energy is stored in the heat accumulator and the standby gas-fired boiler; in the daytime, the electric boiler and the pipeline instant electric heater stop working, energy stored in the working media in the heat accumulator and the standby gas-fired boiler is released to be coupled to the gas-fired boiler for heat supplying; and in extremely frigid weather, the electric boiler and the pipeline instant electric heater can be started in the daytime, and therefore the problem of insufficient gas supply is solved. The advantage of the electricity price in the valley period of electricity is fully used, the consumption of natural gas in the heat supply process is reduced, heat supply cost is lowered, natural gas supply pressure is relieved, and the stability, flexibility and reliability of urban heat supply are improved.

A sprinkler assembly includes a body, a support, which extends from the body, and a closure device that releasably closes the discharge opening of the body. The sprinkler assembly further includes a trigger that releasably holds the closure device at the discharge opening. The support is adapted to allow the fluid flowing from the discharge opening, when the closure device is released, to pass through the support substantially unimpeded by the support and, further, is adapted to reshape the flow of fluid as it flows through the support.

The present invention discloses an automatic feeder design method applied to a filter test, belonging to the electronic component technology field. The automatic feeder design method applied to the filter test is configured to put parts to be detected into a vibration disc in batch, a mechanical arm is configured to put the parts to be detected in the vibration disc into a clamping tool, the clamping tool is taken down after put completion to put in a high-low temperature chamber, the clamping tool after test completion is put on a feeding table, a computer calls test data to match corresponding number of the clamping tool for screening, qualified products are packed, and unqualified products are put in a gland box.

The invention relates to a commercial lighting system based on the Internet of Things. The commercial lighting system comprises a server terminal and a plurality of LED area lighting networks. The LED area lighting network is accessed to the Internet through a 4G / 5G base station, the LED area lighting network comprises a plurality of LED lighting devices, and the plurality of LED lighting devices are in wireless communication connection through a local area network. Each LED lighting device comprises a storage battery, a main control module, an LED lamp, a 4G / 5G communication module, a local area network wireless communication module, a solar power generation device and an exhaust type wind power generation device, wherein the solar power generation device and the exhaust type wind power generation device supply power to the storage battery. According to the commercial lighting system based on the Internet of Things, power is generated through solar energy and wind energy, and the supply pressure of commercial power is reduced; and moreover, remote real-time monitoring is carried out on the commercial lighting system through the Internet, and when a fault occurs, the fault is found at the first time and is maintained in time, so that a large amount of manpower and financial resources are saved.

The present invention discloses a chelate resin tower regeneration prolongation process method comprising the following steps: step 1, first crude saline is added with high purity phosphoric acid for precipitation processing; step 2, the processed first crude saline is filtered; and step 3, the filtrate after filtering in the step2 is introduced into a chelate resin tower for adsorption. The chelate resin tower regeneration prolongation process method well solves the problem of frequent regeneration of the chelate resin tower, greatly extends the resin tower regeneration cycle, reduces labor intensity, saves material and power required for regeneration, reduces waste water efflux, and reduces the amount of wastewater reused in the saline process to achieve the increase in the amount of brine dosage.