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

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.

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.

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 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.

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.

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.