19 results about "Compressed fluid" patented technology

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.

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 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 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).

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 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.

A system and method are disclosed, that allow for the determination of a mass of a fluid within a container by first vibrating an external surface of a container, where the container contains a fluid (such as a compressed fluid, a gas, a liquid, a mixture of a gas and liquid, or a supercritical fluid). Then, vibration data is received at the external surface of the container, and the vibration data is then converted into one or more frequencies. The mass of the fluid in the container is then estimated based on the one or more frequencies.

The application discloses a scroll compressor with independent exhaust passages and belongs to the technical field of compressors. In view of the defects of the traditional scroll compressor center exhaust structure, such as high and low pressure airflow mutual mixing, large exhaust pulsation and low volume utilization rate, the application provides a single-disc multi-scroll structure: the static scroll disc and the dynamic scroll disc are respectively provided with continuous lines and segmented lines, and are engaged to form a plurality of independent exhaust chambers which are isolated from each other; each chamber is connected with an exhaust passage provided with a one-way valve, and the outlet of the passage is uniformly connected with a buffer chamber to stably discharge the compressed fluid. The application effectively avoids the high and low pressure chamber airflow mutual mixing, reduces the airflow loss, improves the effective compression volume and the exhaust displacement under the same external size, reduces the exhaust pulsation, and improves the stability of the whole machine.

There is provided a release valve for releasing fluid from a source of compressed fluid for inflating an inflatable structure, comprising: a housing comprising an inlet for coupling to a source of compressed fluid, and an outlet; a flow chamber disposed within the housing and forming part of a flow path from the inlet to the outlet; a valve member configured to move to a release position to permit fluid to flow from the inlet to the flow chamber; and an actuator and a biasing device, wherein the actuator and the biasing device are disposed in the flow chamber, the actuator configured to move through the flow chamber from an unactuated position to an actuated position to move the valve member to the release position.

The invention relates to a cryogenic fluid compression apparatus (1) comprising a compression chamber (4), an inlet system (6), a piston (5, 15) movable in translation along a longitudinal direction (A) in the compression chamber (4) relative to a fixed structure (24, 25) of the apparatus (1), an outlet (7) communicating with the compression chamber (4) and configured to allow the outlet of compressed fluid, the piston (5) comprising a tubular portion (15) mounted around a fixed central guide (8) connected to the fixed structure (24, 25), the apparatus (1) comprising a sealing system (10) formed between the central guide (8) and the tubular portion (15) of the piston (5), the compression chamber (4) being delimited by the tubular portion (15) of the piston (5) and a terminal end of the central guide (8), the central guide (8) being connected to the structure (24,25) fixed via a support piece (9) received in a longitudinal opening (50) formed in the body of the piston (5, 15) and allowing the relative longitudinal sliding of the piston (5) around the support piece (9). The invention also relates to a filling station comprising such an apparatus. Abbreviated figure: Fig. 1,

The present invention relates to a safety device for a free diver, comprising at least one actuator and comprising an electronic device powered by an electrical power source, the safety device further comprising an automatic device for piercing a compressed fluid tank, which automatic device is controlled by the electronic device for inflating an inflatable element, the automatic piercing device comprising a motor element (13) and a piercing element (4) configured to generate a first movement for piercing the tank and a second movement for rearming the piercing element (4).

A foam fire extinguisher with improved eco-friendliness while preventing dust generation is disclosed. A foam fire extinguisher according to one embodiment of the present disclosure may include: a case forming an outer shape; a fire extinguishing agent container disposed inside the case and containing a fire extinguishing agent; a compressed fluid tank disposed inside the case and containing a compressed fluid; and a spray module that mixes the fire extinguishing agent contained in the fire extinguishing agent container and the compressed fluid contained in the compressed fluid tank and sprays them to the outside based on the operation of a lever for controlling the opening of the fire extinguishing agent container and the compressed fluid tank.

A compressor and a multi stack fuel cell are provided with adjustable pressurized fluid inputs. A compressor has a first compressor stage that is configured to take in an intake fluid, compress the intake fluid to a compressed fluid and output the compressed fluid as an output fluid at a first pressure. The compressor further has a second compressor stage that is configured to take in an intake fluid, compress the intake fluid to a compressed fluid, and output the compressed fluid as an output fluid at a second pressure.

The invention relates to a method for reliquefying BOG, said BOG containing a volatile fraction, said method having the following steps: a) compressing a BOG stream, wherein said BOG stream is discharged from a final compression stage as a final compressed BOG stream having a final pressure; b) condensing said final compressed BOG stream in order to obtain an at least partially condensed final compressed fluid stream; c) providing a fluid receiving vessel having a fluid stream inlet and a fluid stream outlet, wherein the position of said fluid stream outlet is chosen such that it is located above a preset fluid receiving volume; d) introducing the fluid stream from step b) into said fluid receiving vessel through said fluid stream inlet; e) determining a desired liquid level for said fluid receiving vessel such that said desired liquid level is at the height of or exceeds by a preset measure the upper edge of said fluid stream outlet; f) determining an upper limit final pressure for said final compression stage; g) measuring the liquid level in said fluid receiving vessel; h) measuring said final pressure; i) conducting a fluid stream from the fluid receiving vessel through said fluid stream outlet; j) cooling the fluid stream from step i) to a temperature corresponding to the saturation temperature of said fluid stream at a pressure below said final pressure in order to condense the gaseous fraction of said fluid stream; k) diverting said cooled fluid stream if the measured liquid level is at least equal to said desired liquid level and / or if the measured final pressure is equal to said limit final pressure. The invention also relates to a device for carrying out said method.

SAFETY DEVICE EQUIPPED WITH AN AUTOMATIC PUNCTURE SYSTEM FOR A COMPRESSED FLUID TANK AND AN INFLATABLE ELEMENT FOR FREEDIVING AND OTHER USES. The present invention relates to a safety device for freedivers comprising at least one actuator and an electronic device powered by an electrical power source. The safety device further comprises an automatic device for piercing a compressed fluid tank, controlled by the electronic device, to inflate an inflatable element. The automatic piercing device comprises a drive element (13) and a piercing element (4) configured to generate a first movement for piercing the tank and a second movement for resetting the piercing element (4). Figure for the abstract: Figure 1