Patents Assigned to Atlas Copco Airpower, naamloze vennootschap
  • Patent number: 11371507
    Abstract: An oil-injected multistage compressor device that comprises at least one low-pressure stage compressor element (2) with an inlet (4a) and an outlet (5a) and a high-pressure stage compressor element (3) with an inlet (4b) and an outlet (5b), whereby the outlet (5a) of the low-pressure stage compressor element (2) is connected to the inlet (4b) of the high-pressure stage compressor element (3) via a conduit (6), characterized in that an intercooler (9) is provided between the low-pressure stage compressor element (2) and the high-pressure stage compressor element (3) in the aforementioned conduit (6) and that the compressor device (1) is also equipped with a restriction (10) for limiting the amount of oil injected in the low-pressure stage compressor element (2).
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: June 28, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Stijn Broucke, Pieter De Schamphelaere
  • Publication number: 20220193603
    Abstract: Drying device for drying compressed gas which includes at least two vessels with regenerable desiccant and an adjustable valve system which is such that a vessel can dry compressed gas, while the other vessel is being regenerated, whereby by regulating the valve system, the vessels can each in turn dry gas. The drying device includes a regeneration pipe for supplying a regeneration gas which runs from an outlet for dried gas to the valve system, and in which heating means are provided, whereby the drying device is provided with a return pipe for returning the regeneration gas to an inlet, running from the valve system to an inlet pipe which connects to said inlet and in which a venturi ejector is mounted, to which said return pipe is connected, and that regulating means are provided for regulating the flow of gas going through the venturi ejector.
    Type: Application
    Filed: May 11, 2020
    Publication date: June 23, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventor: Hans Maria Karel HERMANS
  • Patent number: 11365737
    Abstract: Oil-injected screw compressor installation including a frame or underframe (5 2), a screw compressor element (3), electrical cabinet (6), oil separator vessel (5) and an air-cooled cooling module (8), with as characteristic that on one side (2a) of the frame (2), the screw compressor element (3) is placed horizontally and with the electrical 10 cabinet (6), the oil separator vessel (5) and the aircooled cooling module (8) being placed on the other side (2b) of the frame (2), with the cooling module (8) being placed such that this is perpendicular to the compressor element (3) and the air (9) sucked in by the cooling module 15 (8) will flow between the electrical cabinet (6) and the cooling module (8).
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 21, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Yanni Francine Dollez, Kristof Adrien Martens, Steven Ray Maurits Laurent, Walter Josée Louis Adriaenssens, Brecht Van Ham
  • Publication number: 20220186729
    Abstract: An element for compressing or expanding a gas including a rigid housing (2) containing an internal chamber; a rotor (3a, 3b) situated in the internal chamber and comprising a rotor shaft (4a, 4b); one or more bearings (7) in which the rotor shaft (4a, 4b) is bearing-supported, wherein the rotor (3a, 3b) with its rotor shaft (4a, 4b) is rotatably mounted with respect to the housing (2) by means of these bearings (7), wherein the rotor (3a, 3b) is mounted with one or more clearances with respect to a wall (5) of the internal chamber, and the element (1) is provided with a separate yielding component (10) which is positionally adjustable with respect to the housing (2) in such a way that at least one of the clearances can be acted upon, wherein the separate yielding component (10) is not directly attached to the rotor (3a, 3b).
    Type: Application
    Filed: December 15, 2021
    Publication date: June 16, 2022
    Applicants: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP, VRIJE UNVERSITEIT BRUSSEL
    Inventors: Karolien KEMPEN, Björn VERRELST, Philippe ERNENS, Wouter CEULEMANS, Guy DE GREEF, Florian FETTWEIS
  • Publication number: 20220186636
    Abstract: A power generation system comprising a liquid pump section (4) comprising a rotary liquid pump (7) with an impeller in which a working fluid is pressurised and which is driven by a drive shaft (8); an evaporator section comprising an evaporator (9) in which the in the rotary liquid pump (7) pressurised working fluid is at least partly evaporated by addition of heat from a heat source; an expander section (3) comprising a rotary expander (11) with an inlet port (16) and a rotary expander element in which the in the evaporator section at least partly evaporated working fluid is expanded; and a generator section (5) comprising a rotary power generator (13) with a rotor, whereby the expander section (3), the liquid pump section (4) and the generator section (5) are rotably connected in such a manner that relative rotational speed ratios between the rotary expander element of the rotary expander (11), the impeller of the rotary liquid pump (7) and the rotor of the rotary power generator (13) are mechanically
    Type: Application
    Filed: February 11, 2020
    Publication date: June 16, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Henrik ÖHMAN, Anton Jan GOETHALS
  • Publication number: 20220168676
    Abstract: Device for separating liquid from a gas, wherein the device (11) comprises two liquid separators (12a, 12b) arranged in series, wherein the liquid separators (12a, 12b) are configured to allow a gas stream from an outlet (14a) of the first liquid separator (12a) to an inlet (13b) of the second liquid separator (12b), characterized in that means (18) are provided for creating radial standing waves in the gas stream.
    Type: Application
    Filed: March 23, 2020
    Publication date: June 2, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Tom POTTERS, TOM SAENEN
  • Publication number: 20220161186
    Abstract: Compressor installation with a liquid-injected compressor device with a compressor element with an outlet pipe connected to an outlet of the compressor element, with a liquid separator in the outlet pipe which includes an inlet and an outlet for compressed gas and an outlet for separated liquid and with a dryer connected to the outlet pipe which uses a desiccant for drying compressed gas of the compressor device. The dryer is provided with a drying section and a regeneration section with an entry and an exit for regeneration gas. A regeneration pipe is connected to the entry and a heat exchanger is provided in the regeneration pipe with a primary section through which the regeneration gas is guided. A secondary section of the heat exchanger is mounted in the compressor device. The compressor installation is provided with means to regulate the amount of liquid injected in the compressor element.
    Type: Application
    Filed: April 20, 2020
    Publication date: May 26, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Frederik VAN NEDERKASSEL, Tom POTTERS
  • Publication number: 20220143689
    Abstract: The device according to any of the preceding claims 13 to 19, characterized in that the device is further configured to carry out a method comprising the step of positioning the green sand mold (3), wherein the device is provided with levelling means configured to hold an upper side of the green sand mold (3) during step c in a parallel position in relation to a gravitationally horizontal plane.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 12, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Victor ADRIAENS, Jun WANG, Jan DE BACKER
  • Publication number: 20220143550
    Abstract: Compressor installation includes a compressor device, a compressor element, a compressed gas outlet, a compressed gas outlet pipe connected to the compressor device, and a dryer connecting to the outlet pipe with a desiccant for drying the compressed gas coming from the compressor device. The dryer includes a drying section and a regeneration section with an entry and an exit for a regeneration gas. A regeneration pipe is connected to the entry of the regeneration section. In the regeneration pipe, a first heat exchanger is provided for heating the regeneration gas. The compressor installation includes a heat pipe with a first end which is in contact with a hotspot at a location in the compressor device where the temperature is higher than the temperature at the outlet of the compressor element and with a second end which is in contact with a secondary section of the first heat exchanger.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 12, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Frederik VAN NEDERKASSEL, Stijn Johan E. BROUCKE
  • Patent number: 11325064
    Abstract: Device to dry a damp compressed gas, whereby the device (2) is provided with a dryer that is provided with a liquid desiccant and configured to bring compressed gas in contact with the aforementioned desiccant that is capable of absorbing moisture from the compressed gas, characterised in that the dryer is a membrane dryer (11); the device (2) to dry compressed gas contains a circuit (20) in which the aforementioned liquid desiccant is placed and means to allow the circulation of the desiccant in the circuit (20), consecutively through the membrane dryer (11) with a membrane (13) that forms a partition between the compressed, gas on one side and the liquid desiccant on the other side of the membrane (13), whereby the membrane (13) is impermeable or virtually impermeable to the gas in the compressed gas but selectively permeable to the moisture in the compressed gas; a heat exchanger (29} to heat up the liquid desiccant; a regenerator (22) used to remove at least partially the moisture absorbed in the liquid d
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 10, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventor: Bart Geerts
  • Publication number: 20220128054
    Abstract: A screw rotor is made out of polymer. The screw rotor includes a shaft with a rotor body on it. The polymer of the shaft is reinforced with fibers. The shaft features elements that engage the rotor body or corresponding elements on the rotor body, such that the elements prevent an axial and/or rotational movement of the shaft with respect to the rotor body.
    Type: Application
    Filed: February 4, 2020
    Publication date: April 28, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Karen Anna Leon MARIEN, Peter MICHEL, Patrick HIRSCH
  • Publication number: 20220112905
    Abstract: A liquid-injected compressor or vacuum pump device with a liquid-injected compressor or vacuum pump element (2),which includes a liquid return system (7), a motor (4) to drive the compressor or vacuum pumping element (2), a gearbox (3) provided between the motor (4) and the liquid-injected compressor or vacuum pump element (2), and a liquid separator vessel (5) in fluid connection with an outlet (6) of the compressor or vacuum pump element (2). The liquid return system (7) includes a main body (8) with a chamber in which a first compressed gas flow (11) from the liquid separator vessel (5) and a second fluid flow (15) from the gearbox (3) are mixed together to form a third fluid flow (20). The third fluid flow (20) leaves the chamber via an outlet (16) and is directed into the liquid-injected compressor or vacuum pump element (2) via the injection point (17).
    Type: Application
    Filed: March 23, 2020
    Publication date: April 14, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Luc COLMAN, Dimi DE JONGHE
  • Patent number: 11298644
    Abstract: A coalescence filter including an inlet for supplying the gas to a filter element present in the coalescing filter, which filter element includes a coalescence medium for coalescing at least one disperse liquid phase during a displacement of a gas through the coalescence medium in a flow direction. The filter element downstream of the coalescence medium includes a drainage medium for draining the at least one coalesced disperse phase leaving the coalescence medium. The filter element contains a barrier layer positioned downstream of the coalescence medium, where the coalescence medium and the barrier layer are held at a distance from each other by one or more spacers to provide a drainage zone in the drainage layer of a drainage medium between a surface of the coalescence medium facing the barrier layer and the barrier layer for draining the coalesced disperse phase in a drainage direction.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 12, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Ken Goris, Jo Wouters, Evi Marcel J. Bultinck, Isabelle Denise M. De Wolf
  • Patent number: 11293558
    Abstract: A check valve assembly for a compressor or a vacuum pump includes a valve body adapted to receive a valve plate pivoting between a first open position and a second closed position. The valve body is connected to a discharge port of a compressor unit or to the intake port of a vacuum pump. A second fluid conduit is attachable to the valve body and is connected to an external network. The assembly includes a shaft and at least one bearing for connecting the valve plate to the valve body. The valve plate includes an elongated area having a hollow tube through which the shaft is inserted for rotatably mounting the valve plate. At least one bearing is positioned on the shaft within the hollow tube.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 5, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventor: Erwin Louis Annie Claes
  • Patent number: 11286937
    Abstract: Electrically driven mobile compressor or pump, comprising at least one compressor element or pump element for supplying a pressurised fluid to a network of consumers of such pressurised fluid; an electric drive motor with a variable speed control coupled to the compressor element or pump element and a controller for the variable speed control of the electric drive motor as a function of the flow rate of compressed gas and/or pressure demanded by the network, and a connection for connection of the compressor or pump to an electricity supply source, and the controller is provided with an algorithm with which the electric current drawn from the supply source can be limited to a set or adjustable maximum value by controlling the speed.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: March 29, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Bert Jozef I. Lathouwers, Antoon Stuer
  • Publication number: 20220088615
    Abstract: Cyclone separator 1 for separating liquid from a flow 8 of gas and liquid, comprising a housing with a mainly tubular inner wall 2, whereby an inlet 3 is provided in the housing for carrying the flow at least partially tangentially against the inner wall, whereby an outlet 4 is further provided at the top of the housing, so that during operation the flow forms a vortex 5 between the inlet and the outlet, and whereby the liquid 6 impacts against the inner wall due to centrifugal force in order to be discharged 11, characterized in that the housing, at least in a zone above the inlet, has a mainly tubular auxiliary wall 7, whereof an outer side is spaced from and directed towards the inner wall, so that during operation the vortex is at least partially bounded by an inner side of the auxiliary wall in order to reduce contact between the vortex and the liquid at the inner wall.
    Type: Application
    Filed: February 18, 2020
    Publication date: March 24, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Tom POTTERS, Tom SAENEN
  • Patent number: 11278844
    Abstract: A device for drying compressed gas with an inlet for compressed gas to be dried originating from a compressor and an outlet for dried compressed gas, where this device includes a number of vessels that are filled with a regeneratable drying agent and a controllable valve system that connects the aforementioned inlet and outlet to the aforementioned vessels, where the device includes at least three vessels, where the aforementioned valve system is such that at least one vessel is always being regenerated, while the other vessels dry the compressed gas, where due to the control of the valve system the vessels are each successively regenerated in turn.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: March 22, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventor: Danny Etienne Andree Vertriest
  • Publication number: 20220074414
    Abstract: A method for controlling a compressor towards an unloaded state, in which the compressor includes a compressor element (2) with an inlet (5), in which in the unloaded state, a residual flow (QD) is suctioned via the inlet (5) towards and into the compressor element (2), and in which for a transition from a loaded state of the compressor to the unloaded state, the inlet (5) of the compressor element (2) is partially closed in successive discrete transitional steps.
    Type: Application
    Filed: January 9, 2020
    Publication date: March 10, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Kristof Adrien Laura MARTENS, Stijn PITTOIS
  • Publication number: 20220074413
    Abstract: A non-lubricated system for pumping a gas, includes a stationary stator with a housing that includes a rotor cavity and at least one rotatable rotor element incorporated within the rotor cavity. The stator includes at least one self-supporting sealing element, incorporated within the rotor cavity between an end face of at least one of the rotor elements and an interior wall of the housing to form a seal along the corresponding end face. At least one self-supporting sealing element is provided with an abradable coating on at least one side facing the rotor.
    Type: Application
    Filed: January 27, 2020
    Publication date: March 10, 2022
    Applicant: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Karen Anna Leon MARIEN, Guido Jozef Christian PEETERS
  • Patent number: 11260340
    Abstract: A method for regulating the regeneration time of an adsorption dryer, the method including the steps of: subjecting the adsorption dryer to an adsorption cycle; stopping the adsorption cycle after a preset adsorption time interval; and subsequently subjecting the adsorption dryer to a first regeneration cycle during a preset time interval. The method further includes maintaining the first regeneration cycle for an additional regeneration time interval if the measured pressure dew point or relative humidity is higher than a predetermined pressure dew point or relative humidity threshold; and/or stopping the first regeneration cycle if the outlet temperature is higher than or equal to a predetermined temperature threshold, and, if the time frame in which the adsorption dryer is subjected to the first regeneration cycle is greater than a minimum heat regeneration time interval.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 1, 2022
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventor: Hans Maria Karel Hermans