54 results about "Compressed fluid" patented technology

An inflation control system for an inflatable may comprise a compressed fluid source, a valve module, a temperature sensor, and a controller. The valve module is connected to the compressed fluid source and configured to control a flow of gas to the inflatable. The temperature sensor measures an ambient temperature and outputs the ambient temperature measurement. The controller is operably coupled to the valve module and configured to receive the ambient temperature measurement and determine an open-valve time based on the ambient temperature measurement, the open-valve time being a duration of time the valve module is in an open position.

The invention discloses a two-dimensional near-free-surface underwater explosion cavitation forecasting method, and relates to the technical field of explosion.The method comprises the steps that a mixed fluid is regarded as a mixture of multiple fluid media, and a multiphase compressible fluid motion control equation related to state parameters of the mixed fluid before the mixed fluid reaches an equilibrium state and the mass fraction of the fluid media of all phases is constructed; then constructing a thermodynamic state equation of any k-phase fluid medium based on an NASG equation, and constructing a cavitation phase change equation after the mixed fluid completes phase change relaxation to reach an equilibrium state by considering the phase change process of a liquid phase and a steam phase when a flow field changes; and solving an equation set formed by a multiphase compressible fluid motion control equation, a thermodynamic state equation of each phase of fluid medium and a cavitation phase change equation in each cycle step to obtain a numerical forecasting result. According to the method, cavitation is regarded as the continuous accumulation process of the steam phase content in the mixed fluid, the physical essence is better met, and therefore the forecasting result is more accurate.

This application relates to the technical field of ship drainage, and discloses a test device for measuring the drainage capacity of compressible fluids, including a first simulation chamber, a second simulation chamber, a power chamber, and a flow monitoring mechanism; the first simulation chamber has a first chamber with high-pressure air therein; the second simulation chamber has a second chamber filled with water, and the second chamber is selectively connected to the first chamber through a first pipeline; a first storage chamber for storing compressible fluids is provided in the power chamber, and the first storage chamber is selectively connected to the second chamber; the flow monitoring mechanism is arranged on the first pipeline, and the flow monitoring mechanism is adapted to detect the amount of water flowing from the second chamber into the first chamber when the compressible fluids in the first storage chamber continuously enter the second chamber. The test device for measuring the drainage capacity of compressible fluids in this application improves the accuracy.

Compressor assembly comprising a crankcase (102) with a suction pipe (106) connected to the crankcase, wherein the crankcase suction pipe is configured to be in fluid communication with the crankcase. A crankcase suction valve (148) is located between the crankcase suction pipe and the crankcase, wherein the crankcase suction valve is configured to prevent backflow from the crankcase into the suction pipe. A first piston (112) includes a suction valve (134) which allows fluid to flow from the crankcase through the first piston and into a first cylinder (108). A discharge valve (142) is connected to a head (116) of the first cylinder, facilitating the expulsion of compressed fluid out of the first cylinder.

To provide a compressor which enables reduction of discharge pressure loss, and to provide an air conditioner.SOLUTION: A compressor 30 includes: a motor 31; a shaft 33 which is rotated by the motor 31 and includes a pin part 32; and a compression mechanism including a main bearing 35 and a sub bearing 36 which rotatably support the shaft 33, and a cylinder 38 forming a compression chamber 37 with the main bearing 35 and the sub bearing 36 and configured to compress a fluid with the pin part 32 rotating in the compression chamber 37. The main bearing 35 has a discharge port 48 which discharges the compressed fluid. The cylinder 38 has a cutout 42 forming a passage of the compressed fluid which leads from the inside of the compression chamber 37 to the discharge port 48. At least an outer periphery part 50 on the compression chamber 37 side of the cutout 42 is a curved surface or chamfered.SELECTED DRAWING: Figure 7

To provide a cooling / heating system that can enhance durability of a compressor.SOLUTION: A cooling / heating system 1 comprises: a compressor for compressing fluid; a condenser for condensing the fluid compressed by the compressor; an expansion valve for expanding the fluid condensed by the condenser; an evaporator for evaporating the fluid expanded in the expansion valve, and sending it to the compressor; and a heat exchanger 20 comprising a first flow passage 41 through which the fluid sent from the condenser flows, and a second flow passage 42 through which the fluid sent from the evaporator flows, and for exchanging heat between the fluid flowing through the first flow passage 41, and the fluid flowing through the second flow passage 42. The heat exchanger 20 comprises an approaching / separating mechanism 50 for making the first flow passage 41 and the second flow passage 42 approach or separate from each other in accordance with the temperature of the fluid flowing through the first flow passage 41.SELECTED DRAWING: Figure 2

Motor-driven compressor (10), with an electric motor (16) including a rotor (51), a housing (11) including a suction port (11a) which sucks in a fluid, a compression unit (15) driven by the electric motor (16), the compression unit (15) compressing an inlet fluid, which is the fluid sucked in through the suction port (11a), and discharging a compressed fluid, which is the compressed inlet fluid, a drive circuit (55) which drives the electric motor (16), and a control device (60) which controls the drive circuit (55) to control rotation of the rotor (51), wherein the compression unit (15) has a fixed roller (31) attached to the housing (11), a movable roller (32) engaged with the fixed roller (31) and adapted to orbit the fixed roller (31), and a compression chamber (33) defined by the fixed roller (31) and the movable roller (32), wherein, when the rotor (51) rotates in a predetermined forward direction, the movable roller (32) orbits in the forward direction, and the compression unit (15) thereby compresses the inlet fluid sucked into the compression chamber (33), wherein the motor-driven compressor (10) further comprises an injection port (43) which sucks an intermediate pressure fluid into the compression chamber (33), the intermediate pressure fluid having a pressure higher than that of the inlet fluid and lower than that of the compressed fluid, wherein the control device (60) comprises a deceleration control device that performs a deceleration control that decelerates the rotor (51) during a first period in response to rotating the rotor (51) in a direction opposite to the forward direction, and a continuation control means which performs a continuation control which continues the rotation of the rotor (51) during a second period of time which is longer than the first period of time after the deceleration control is performed, and wherein a fluctuation difference of a rotation frequency of the rotor (51) during the continuation control is less than a deceleration rotation frequency difference, which is a difference between a rotation frequency of the rotor (51) when the deceleration control is started and a rotation frequency of the rotor (51) when the deceleration control is ended.

1. Name of the product in this design: Nozzle with flow rate adjustment function. 2. Application of this design: It is used as a nozzle with flow rate adjustment function, installed at the end of the compressed fluid flow path such as the outlet of a spray gun. The flow rate is adjusted by rotating the operating part, the operating part can be locked by the locking nut, and the flow rate can be confirmed by the scale. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The invention relates to a fluid-supply device comprising a compression apparatus (1) comprising a pumping apparatus with an enclosure (13) intended to contain a bath (16) of cryogenic fluid, a first and a second compression chamber (3), (4), an intake system (2) admitting to the first compression chamber (3), a transfer system (6) transferring between the first (3) and the second (4) compression chamber, a movable piston (5) for ensuring the compression in the first (3) and second (4) compression chambers, a discharge port (7) for discharging the compressed fluid, an overflow orifice (8) for discharging, from the first compression chamber (3), a surplus of liquid trapped in the first compression chamber (3) during a compression movement of the piston (5) in the first compression chamber (3), a collecting pipe (11) having an upstream end connected to the overflow orifice and a downstream end connected to a receiving volume, the receiving volume comprising a tank (10) forming a storage volume that is separated from the bath (16) by at least one wall.

The invention relates to a fluid compression apparatus (1) comprising a sealed enclosure (13) for containing a cryogenic fluid bath (16), a first (3) and a second compression chamber (4), an inlet system (2) for the first chamber (3), a transfer system (6) from the first (3) to the second (4) chamber, the apparatus (1) further comprising a communicating discharge port (7) for the outlet of compressed fluid from the second chamber, the apparatus (1) further comprising a discharge port equipped with a valve (9) for the discharge of the first compression chamber (3) into the bath (16) to allow excess liquid to escape during fluid compression in the first chamber (3), the discharge port communicating with the enclosure (13) via at least one flow restrictor (10) configured to attenuate the velocity and / or intensity of the discharged liquid flow by limiting its pressure drop. Abstract figure: Fig. 1

A compressed fluid driven downhole system 12 comprises a drill string 16 forming a fluid flow path 20. The drill string 16 has an up hole end and a down hole end. A downhole tool 14, which is driven by compressed fluid is coupled to the downhole end of the drill string 16. A valve system 10 is coupled to the tubular at a location up hole of the downhole tool 14. The valve system 10 is operable to selectively: open the fluid flow path 20 allowing compressed fluid to flow to drive the downhole tool 14; and, close the fluid flow path 20 preventing compressed fluid from flowing to and out of the downhole tool 14. Therefore, when re pressurizing the drill string following the connection of a new drill pipe compressed fluid delivered down the dill pipe is prevented from flowing to through downhole tool and into hole until the valve system is opened. The valve system 10 may be controlled to open when the pressure of the compressed gas in the drill string up hole of the valve system reaches a threshold pressure. The threshold pressure may be greater than ambient downhole pressure and less than or equal to an operating pressure of the downhole tool.

A thermal management system for a propulsion system of an aircraft includes a fluid circuit configured to provide a flow of a compressed fluid from a compressor section of the propulsion system to, in serial flow order, a first turbine, a compressor, a second turbine, a thermal load, and an exhaust sink. A heat exchanger is disposed in a fan stream of the propulsion system at a location along the fluid circuit between the compressor and the second turbine. The fluid circuit extends through and is in thermal communication with the heat exchanger.

This refrigeration system is for cooling a heat medium for supplying cooling energy to an object of cooling, and comprises: a turbomachine comprising a turbine, a compressor, and an electric motor; a closed loop including a compressed fluid line for guiding a compressed fluid that has been compressed by the compressor to the turbine, and an expanded fluid line for guiding an expanded fluid that has been expanded by the turbine to the compressor; a cooler for cooling the compressed fluid flowing through the compressed fluid line; a heat medium cooler for transferring heat between the expanded fluid flowing through the expanded fluid line and the heat medium; a regenerative heat exchanger for transferring heat between the compressed fluid having passed through the cooler and the expanded fluid having passed through the heat medium cooler; and an electric motor cooling line for extracting the compressed fluid from between the cooler on the compressed fluid line and the regenerative heat exchanger, and supplying the compressed fluid to a casing accommodating the electric motor.

A braking system and method includes primary and secondary cylinder assemblies. The primary cylinder assembly includes an expandable structure that controls movement of a first piston rod. The secondary cylinder assembly includes a second piston rod disposed within a second cavity of a second housing. A compressed fluid moves from the primary assembly to the secondary cylinder assembly responsive to the expandable structure expanding. The second piston rod moves from a resting state to a compressed state responsive to at least some of the compressed fluid being received by the secondary assembly. A fluid control assembly controls a position of a valve between an open position and a closed position to allow or prohibit the compressed fluid from moving between the primary and secondary assemblies.

TITLE: DEVICE AND METHOD FOR PRE-COOLING A TARGET FLUID TO BE LIQUEFYING The device (100) for pre-cooling a target fluid comprises: - an inlet (105) for a first fluid in the liquid phase, - a means (155) for compressing the first fluid in the liquid phase, - a heat exchanger (115) between the first compressed fluid and a pre-cooling fluid to cool the pre-cooling fluid, - an expander (120) for the first fluid downstream of the heat exchanger, - a compressor (125) for the pre-cooling fluid, - a converter (130) of mechanical expansion energy, obtained by the operation of the expander, into mechanical compression energy supplied to the compressor, - a means (135, 205) for expanding the pre-cooling fluid at the outlet of the heat exchanger and - a means (140) for pre-cooling between the expanded pre-cooling fluid and a target fluid to cool the target fluid. Figure for abstract: Figure 1

The invention relates to a method for capturing CO2, wherein a stream (1) containing CO2 and at least one other component is separated by pressure swing adsorption (PSA), producing a fluid (5) enriched in CO2 at a first pressure and a fluid (3) depleted in CO2 at a second pressure, higher than the first pressure, wherein the CO2-enriched fluid is compressed in a compressor (C1), which generates compression heat and produces a compressed fluid at a pressure between 15 and 40 bar abs, wherein the compressed fluid is sent to a unit for separation via partial condensation, which produces a CO2-enriched flow, wherein the CO2-depleted fluid is expanded in two turbines (T1, T2) to produce an expanded fluid, and wherein the compression heat is used to heat the fluid upstream of each turbine.

A filtration apparatus that can include a filtering device can include disc sectors configured so that a vacuum can be applied to some disc sectors while compressed fluid is passed from a disc sector so that the fluid is passed into and / or through of at least one adjacent disc sector while that at least one disc sector is passed through a bath of the device configured to retain a slurry. Processes to retrofit a pre-existing filter device to include new disc sectors to form an embodiment of the filtration apparatus can include replacing old disc sectors with new disc sectors that are configured so that a vacuum can be applied to some disc sectors while compressed fluid is passed into and / or through at least one adjacent disc sector while that at least one adjacent disc sector is passed through a bath of the device configured to retain a slurry.

The invention provides a sensor, which includes a sensing surface; a housing including a recess, the sensing surface is located at the bottom of the recess, and the recess includes at least one side wall and an opening circumferentially surrounding the sensing surface. A compressed fluid nozzle is provided in the at least one side wall to nozzle compressed fluid from the compressed fluid nozzle to force the substance on the sensing surface to leave from the opening. This design makes it possible to refresh in situ with good efficiency without involving additional mechanical parts, thus reducing the risk of sensing surface damage, such as scratch wear, in the presence of wear particles.

The invention relates to a fluid compression apparatus (1) comprising a sealed enclosure (13) intended to contain a bath (16) of cryogenic fluid, a first (3) and a second (4) compression chambers, an intake system (2) for admission into the first chamber (3), a system (6) for transfer from the first (3) to the second (4) chamber, the apparatus (1) further comprising a communicating discharge orifice (7) for compressed fluid to leave the second chamber, the apparatus (1) further comprising a discharge orifice provided with a valve (9) for discharge from the first compression chamber (3) to the bath (16) so as to let surplus liquid leave during compression of fluid in the first chamber (3), the discharge orifice communicating with the enclosure (13) via at least one flow retarder (10) configured to attenuate the speed and / or intensity of the discharged liquid flow by limiting its pressure drop.

The present invention relates to a oscillating piston compressor comprising an oscillating piston (1) received in a working chamber (2) and driven by an eccentric shaft (8), a low-pressure inlet (4) opening into the working chamber (2) for the fluid to be compressed, a high-pressure outlet (5) opening into the working chamber (2) for the compressed fluid, a medium-pressure inlet (6) for fluid at a medium-pressure level which lies between the pressure level of the low-pressure inlet (4) and the pressure level of the high-pressure inlet (5), wherein the medium-pressure inlet (6) is in fluidic communication with the working chamber (2) via a valve controlled by the angular position of the eccentric shaft (8), wherein the valve comprises a weighing element (3) received in a receptacle (71) which is equipped with a valve channel device.which is in fluidic communication with the intermediate pressure inlet (6) and is open or closed depending on the rotational angle of the weighing element (3) relative to the working chamber (2), wherein the valve channel assembly comprises at least one valve channel (323), wherein the valve channel (323) is designed to be pressure-optimized, in particular depending on the desired mass flow level (intermediate pressure level).

A heat pump (100) with an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid is described, the evaporator (50) having an evaporator sump (52); with a compressor having a first compressor stage (10) and a second compressor stage (20), the compressor being arranged in the flow direction of the evaporated fluid during operation of the heat pump (100) between the evaporator (50) and a condenser (60) and being designed to compress the evaporated fluid in order to obtain compressed fluid; and with a condenser (60) for condensing the compressed fluid; and with an intermediate cooler (40) which is connected to an intermediate cooling fluid supply line (3) and which has an operating element (42), the operating element (42) being arranged between the first compressor stage (10) and the second compressor stage (20) and being designed to bring about an interaction between an intermediate cooling fluid, which can be supplied through the intermediate cooling fluid supply line (3), and a heated vaporous fluid, which can be discharged from the first compressor stage (10), and wherein the intermediate cooling fluid supply line (3) extends from the evaporator sump (52) to the operating element (42). Furthermore, methods for operating and producing the heat pump are described.

The main collecting pipe (3) for a storage and distribution assembly (1) of compressed fluid for a vehicle comprising a plurality of compressed fluid tanks (4) is - a body (6) having a plurality of communication holes (9) configured to be in fluid communication with the tanks, - a distribution path (7) of the fluid stored in the tanks, which is provided in the body and configured to be in fluid communication with the tanks via a solenoid valve (10) and a manual valve (11), - a filling path (8) of the tanks provided in the body, the filling path (8) being configured to be in fluid communication with the tanks and includes. The manual valve is also used to effect fluid communication between the filling path of the tank and the tank.

A cooling system for a gas turbine is disclosed comprising a vortex tube defining a body having an inlet port connectable to a compressor to receive compressed fluid. The vortex tube is configured to separate flow of the compressed fluid into a cold stream and a hot stream. The cooling system further includes a fluidic oscillator in fluid communication with the vortex tube, the first end of which is connected to a cold stream outlet port of the vortex tube to receive the cold stream. The fluidic oscillator is configured to generate at least two oscillator jets of the cold stream, operating at different oscillation frequencies, to produce biaxial pulsating flow oscillations onto a surface of at least one gas turbine blade of the gas turbine. A more efficient cooling system will result from the proposed cooling system's increased cooling impinging surface area and significantly reduced cooling fluid temperature differential.

The present invention relates to a process for transferring heat to a stream comprising NH3, the process comprising: (i) providing a stream comprising a heat transfer medium, wherein the stream has a pressure in the range of from 1 to 100 bar(abs) and a temperature equal to or greater than 105° C.; (ii) increasing the temperature of the stream provided in (i) by transferring heat from a chemical conversion process, from a physicochemical process, or from ambient heat, or from a combination of two or more thereof, to the heat transfer medium, for obtaining a stream having a temperature in the range of from 125 to 750° C.; (iii) increasing the pressure of the stream obtained in (ii), for obtaining a compressed stream having a temperature in the range of from 50 to 800 C; (iv) providing a stream comprising NH3, wherein the stream comprising NH3 has a temperature in the range of from −33 to 100° C.; (v) heating the stream provided in (iv), wherein heating comprises transferring heat from the compressed stream obtained in (iii) to the stream provided in (iv), for obtaining a heated stream comprising NH3 having a temperature in the range of from 25 to 750° C.; (vi) expanding the compressed stream obtained in (v); (vii) optionally recycling at least a portion of the stream obtained in (vi) to (i).

A vehicle includes a main body and at least one wing coupled to the main body. A source of compressed fluid is coupled to the main body. The vehicle further includes first and second thrusters, each said first and second thruster having an intake structure and each said first and second thruster in fluid communication with the source. The first thruster is coupled to the main body and the second thruster is coupled to the at least one wing. The first and second thrusters are positioned, when in a first configuration, such that at least a portion of a boundary layer produced due to motion of the vehicle is ingested by the intake structures of the first and second thrusters. The vehicle further includes a system for selectively providing the compressed fluid to the first and second thrusters.

The invention relates to a fluid compression device comprising a compression chamber accommodating a piston that is able to move between first and second ends of the compression chamber, the device comprising a regeneration circuit connecting the first and second ends of the compression chamber and having a regenerator, the supply pipe comprising a set of one or more valves, the device comprising at least one compressed-fluid discharge pipe comprising an upstream end connected to the compression chamber and a downstream end intended to be connected to a receiver of the compressed fluid, the device comprising a bypass pipe comprising an upstream end connected to the regeneration circuit and a downstream end connected to a recovery member, the bypass pipe being configured to draw a fluid fraction during a regeneration phase during which the piston is moved from the second end towards the first end of the compression chamber.

The application discloses a rigid pressure stabilizing device for a petroleum drilling pump and belongs to the field of petroleum drilling equipment. The device comprises a main flow path formed by a connecting end one and a connecting end two connected to the side of the connecting end one. A gas bag buffer is fixed to the outer surface of the connecting end one, and the liquid inlet end of the gas bag buffer is communicated with the connecting end one. An inner cavity is formed in the connecting end two, and the inner cavity comprises a throat part formed in the middle part of the connecting end two. The gas bag buffer is matched with a throttling assembly to realize the pressure stabilizing function. When the pressure peak value comes, part of the fluid is rapidly compressed and absorbed by the gas bag of the gas bag buffer (energy is stored). Another part of the fluid passes through the throttling assembly, and the kinetic energy of the fluid is converted into heat energy through viscous friction and dissipated. When the pressure trough comes, the stored energy in the gas bag buffer is released, the compressed fluid is pushed back to the main flow path, the pressure of the main flow path is effectively supported and improved, and the trough value is compensated.

A heat pump (100) is described having an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid; a condenser (60) for condensing a compressed fluid; a compressor with a first compressor stage (10) and with a second compressor stage (20), wherein the compressor is arranged in the direction of flow of the evaporated fluid between the evaporator (50) and the condenser (60) during operation of the heat pump (100) and is designed to compress the evaporated fluid in order to obtain the compressed fluid; a value recording device (95) for recording a first value (P1) which corresponds to a first pressure ratio between an inlet of the first compressor stage (10) and an outlet of the first compressor stage (10) or is dependent on the first pressure ratio; and a controller (96) for controlling a first rotational speed of the first compressor stage (10) and a second rotational speed of the second compressor stage (20), wherein the controller (96) is designed to control the second rotational speed of the second compressor stage (20) depending on the first value (P1). Furthermore, methods for operating and producing the heat pump are described.

The invention relates to a fluid compression apparatus and method comprising first and second compression chambers, an intake system into the first chamber, a transfer system from the first chamber to the second chamber, a piston for ensuring the compression of the fluid in the first and second chambers, and an orifice for discharging the compressed fluid, the intake system comprising one or more valves, the apparatus further comprising a discharge orifice allowing communication between the first compression chamber and the bath to allow surplus liquid trapped in the first compression chamber to leave during a compression movement of the piston in the first compression chamber, the apparatus comprising a discharge valve configured to control the discharge of liquid via the discharge orifice and to prevent fluid from entering the compression chamber via the discharge orifice.

Title of the invention: Method and apparatus for capturing CO2 with separation by partial condensation and / or distillation and / or solidification In a method for capturing CO2, a flow (1) containing CO2 and at least one other component is separated by pressure swing adsorption (PSA) producing a CO2-enriched fluid (5) at a first pressure and a CO2-depleted fluid (3) at a second pressure, higher than the first pressure, the CO2-enriched fluid is compressed in a compressor (C1) generating heat of compression and producing a compressed fluid at a pressure between 15 and 40 bar abs, the compressed fluid is sent to a partial condensation separation unit which produces a CO2-enriched flow, the CO2-depleted fluid is expanded in a turbine (T1) to produce an expanded fluid, the compressor, the turbine and a motor (M) being mechanically connected in an integrated machine,so that the turbine as well as the engine drive the compressor. Abstract figure: Fig. 1,