Patents by Inventor Ulrich Thomes
Ulrich Thomes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240068462Abstract: A cooling arrangement for an at least two-stage compressed air generator comprises an intercooler arranged between a first and a second compressor stage, an aftercooler arranged after the second compressor stage, and a subassembly cooler, which absorbs heat from further subassemblies of the compressed air generator. A coolant circuit comprises a main cooler, the cold side supplying a cooled coolant parallel to the respective coolant inlet of the intercooler, of the aftercooler and of the subassembly cooler, and the hot side receiving the heated coolant exiting in parallel at the respective coolant outlet of the intercooler and of the aftercooler. The coolant outlet of the subassembly cooler is connected to a feed inlet of the intercooler and/or of the aftercooler.Type: ApplicationFiled: September 7, 2023Publication date: February 29, 2024Inventors: Frank Georg Klaus, Ulrich Thomes, Marc Schiel
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Patent number: 11788524Abstract: A cooling arrangement for an at least two-stage compressed air generator. The cooling arrangement comprises an intercooler arranged between a first and a second compressor stage, an aftercooler arranged after the second compressor stage, and a subassembly cooler, which absorbs heat from further subassemblies of the compressed air generator. A coolant circuit comprises a main cooler, the cold side supplying a cooled coolant parallel to the respective coolant inlet of the intercooler, of the aftercooler and of the subassembly cooler, and the hot side receiving the heated coolant exiting in parallel at the respective coolant outlet of the intercooler and of the aftercooler. The coolant outlet of the subassembly cooler is connected to a feed inlet of the intercooler and/or of the aftercooler.Type: GrantFiled: January 24, 2020Date of Patent: October 17, 2023Assignee: Gardner Denver Deutschland GMBHInventors: Frank Georg Klaus, Ulrich Thomes, Marc Schiel
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Publication number: 20230279857Abstract: The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.Type: ApplicationFiled: May 12, 2023Publication date: September 7, 2023Inventor: Ulrich Thomes
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Patent number: 11686310Abstract: The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.Type: GrantFiled: November 29, 2021Date of Patent: June 27, 2023Assignee: GARDNER DENVER DEUTSCHLAND GMBHInventor: Ulrich Thomes
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Publication number: 20230071320Abstract: The invention relates to a screw compressor for compressing a medium, having a drive unit (01) which has a drive (06, 07), and having a compressor unit (03) which has two mutually engaging rotors (21, 22) with screw profiles, which are complementary to one another, and a compressor housing (19) having an inlet (24) and an outlet (23). The rotors (21, 22) are coupled to the drive unit via a shaft (10, 14) in each case. The shafts (10, 14) are only mounted on the drive side of the rotors (21, 22). The rotors (21, 22) are mounted only on one side relative to their axial direction and are not mounted on their side which faces axially away from the drive (06, 07). The invention furthermore relates to a screw compressor arrangement with screw compressors which are fluidically connected in series.Type: ApplicationFiled: February 10, 2021Publication date: March 9, 2023Inventor: Ulrich Thomes
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Publication number: 20220106954Abstract: The invention relates to a cooling arrangement for an at least two-stage compressed air generator (01). The cooling arrangement comprises an intercooler (04), which is arranged between a first and a second compressor stage (02, 03), an aftercooler (05), which is arranged after the second compressor stage (03), and a subassembly cooler (08), which absorbs heat from further subassemblies of the compressed air generator (01). A coolant circuit comprises a main cooler (07), the cold side of which supplies a cooled coolant having a low temperature parallel to the respective coolant inlet of the intercooler (04), of the aftercooler (05) and of the subassembly cooler (08), and the hot side of which receives the heated coolant having a high temperature exiting in parallel at the respective coolant outlet of the intercooler (04) and of the aftercooler (05). The coolant outlet of the subassembly cooler (08) is connected to a feed inlet (12) of the intercooler (04) and/or of the aftercooler (05).Type: ApplicationFiled: January 24, 2020Publication date: April 7, 2022Inventors: Frank Georg Klaus, Ulrich Thomes, Marc Schiel
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Publication number: 20220082100Abstract: The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Inventor: Ulrich Thomes
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Patent number: 11193489Abstract: The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.Type: GrantFiled: April 10, 2018Date of Patent: December 7, 2021Assignee: GARDNER DENVER DEUTSCHLAND GMBHInventor: Ulrich Thomes
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Patent number: 11067084Abstract: The invention is related to a pulsation muffler (100) for a gaseous medium flow (107), which is supplied by a compressor. The pulsation muffler (100) comprises a housing (101) extending along a central axis with a medium flow inlet (106) and a medium flow outlet; several tubular absorber elements (108) concentrically arranged in the housing (10) and fluidically arranged one behind the other. Each tubular absorber element (108) is provided with an inlet area and an outlet area, positioned at an axial distance from each other. Between the respective radially adjacent wall sections of different absorber elements (108), a flow compartment (112, 114) is maintained for the medium flow (107).Type: GrantFiled: April 10, 2018Date of Patent: July 20, 2021Assignee: GARDNER DENVER DEUTSCHLAND GMBHInventors: Ulrich Thomes, Marc Schiel
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Patent number: 10816001Abstract: A compressor system (01) with a system housing (02), in which are arranged heat generating system components (06) comprising at least one compressor stage (201) for compressing a gaseous medium, an air water cooler (12), a blower (15) which generates a cooling air flow (16), and air conducting elements. A cooling air channel (07) is configured which has an inlet opening (08) in the upper section of the system housing (02) and an outlet opening (09) in the lower section of the system housing (02), wherein upper air conducting elements (13) are positioned in order to conduct the cooling air flow (16) after flowing through the air water cooler (12) to the inlet opening (08), and lower air conducting elements (17) are positioned in order to conduct the cooling air flow (16) from the outlet opening (09) to the system components (06).Type: GrantFiled: April 10, 2018Date of Patent: October 27, 2020Assignee: GARDNER DENVER DEUTSCHLAND GMBHInventors: Frank Georg Klaus, Ulrich Thomes, Marc Schiel
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Patent number: 10712756Abstract: A mixing valve arrangement for a hydraulic system is provided with a medium cavity, in which a mixing cylinder, a first and a second inlet chamber as well as an outlet are provided. A mixing piston is axially mounted and movable in the mixing cylinder, provided with a flow path with an inlet opening, a variable cross-section of said inlet opening culminating into the first and/or the second inlet chamber, according to the axial position of the mixing piston, and with an outlet opening culminating in the outlet of the mixing cylinder. A thrust rod is axially mounted and movable and connected to the mixing piston, to change the axial position thereof. A drive is connected as an actuator to the thrust rod, for the axial movement of the same. The drive is an electrical motor, which is completely arranged inside the medium cavity.Type: GrantFiled: April 17, 2018Date of Patent: July 14, 2020Assignee: GARDNER DENVER DEUTSCHLAND GMBHInventors: Frank Georg Klaus, Ulrich Thomes, Nicolas Henn
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Publication number: 20180299912Abstract: A mixing valve arrangement for a hydraulic system is provided with a medium cavity, in which a mixing cylinder, a first and a second inlet chamber as well as an outlet are provided. A mixing piston is axially mounted and movable in the mixing cylinder, provided with a flow path with an inlet opening, a variable cross-section of said inlet opening culminating into the first and/or the second inlet chamber, according to the axial position of the mixing piston, and with an outlet opening culminating in the outlet of the mixing cylinder. A thrust rod is axially mounted and movable and connected to the mixing piston, to change the axial position thereof. A drive is connected as an actuator to the thrust rod, for the axial movement of the same. The drive is an electrical motor, which is completely arranged inside the medium cavity.Type: ApplicationFiled: April 17, 2018Publication date: October 18, 2018Inventors: Frank Georg Klaus, Ulrich Thomes, Nicolas Henn
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Publication number: 20180291905Abstract: The invention is related to a pulsation muffler (100) for a gaseous medium flow (107), which is supplied by a compressor. The pulsation muffler (100) comprises a housing (101) extending along a central axis with a medium flow inlet (106) and a medium flow outlet; several tubular absorber elements (108) concentrically arranged in the housing (10) and fluidically arranged one behind the other. Each tubular absorber element (108) is provided with an inlet area and an outlet area, positioned at an axial distance from each other. Between the respective radially adjacent wall sections of different absorber elements (108), a flow compartment (112, 114) is maintained for the medium flow (107).Type: ApplicationFiled: April 10, 2018Publication date: October 11, 2018Inventors: Ulrich Thomes, Marc Schiel
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Publication number: 20180291902Abstract: The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.Type: ApplicationFiled: April 10, 2018Publication date: October 11, 2018Inventor: Ulrich Thomes
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Publication number: 20180291904Abstract: A compressor system (01) with a system housing (02), in which are arranged heat generating system components (06) comprising at least one compressor stage (201) for compressing a gaseous medium, an air water cooler (12), a blower (15) which generates a cooling air flow (16), and air conducting elements. A cooling air channel (07) is configured which has an inlet opening (08) in the upper section of the system housing (02) and an outlet opening (09) in the lower section of the system housing (02), wherein upper air conducting elements (13) are positioned in order to conduct the cooling air flow (16) after flowing through the air water cooler (12) to the inlet opening (08), and lower air conducting elements (17) are positioned in order to conduct the cooling air flow (16) from the outlet opening (09) to the system components (06).Type: ApplicationFiled: April 10, 2018Publication date: October 11, 2018Inventors: Frank Georg Klaus, Ulrich Thomes, Marc Schiel
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Publication number: 20150086392Abstract: A dry running gas compressor has at least a first compression unit with a housing and a first working chamber in which gas is compressed. A hollow of said first working chamber is in said housing. A closed cooling liquid circuit is adapted for cooling the first working chamber of the first compression unit. The compression unit has at least one lubricant channel through which lubricant is guided to a bearing or gearbox or other component of the first compression unit. The lubricant channel is part of a lubricant circuit. The lubricant circuit is effectively fluidly separated from the cooling circuit.Type: ApplicationFiled: March 24, 2014Publication date: March 26, 2015Inventor: Ulrich Thomes