Patents by Inventor Tom Tychsen
Tom Tychsen 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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Patent number: 11060532Abstract: A pressure amplifier (1) is described comprising a housing (2), an amplification piston (5) in the housing (2) having a high pressure area (9) in a high pressure chamber (5) and a low pressure area (8) in a low pressure chamber (3), and a switching valve (11) having a pressured control valve element having a larger pressure area (16) and a small pressure area (17). Such a pressure amplifier should have a high operating frequency. To this end the valve element (10) and the amplification piston (5) are located in a same bore (3, 4) in the housing (2).Type: GrantFiled: March 1, 2018Date of Patent: July 13, 2021Assignee: PistonPower ApSInventors: Lubos Vokel, Jorgen Mads Clausen, Tom Tychsen
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Patent number: 10920796Abstract: A hydraulic pressure intensifier (1) is described comprising a housing (2) having a low pressure chamber (3) and a high pressure chamber (4), force transmitting means (5) between the low pressure chamber (3) and the high pressure chamber (4), and a switching valve (8) connecting the low pressure chamber (3) to a first pressure or to a second pressure different from the first pressure. It is intended to have a large volume on the high pressure side of the pressure intensifier. To this end the switching valve (8) is controlled by a pilot valve 18.Type: GrantFiled: March 1, 2018Date of Patent: February 16, 2021Assignee: PistonPower ApSInventors: Jorgen P. Todsen, Jorgen Mads Clausen, Tom Tychsen
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Patent number: 10895270Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (10) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (10). To this end, the inlet section (18) is arranged inside the piston rod (6), and wherein the low pressure chamber (32) is stationarily arranged relative to the inlet section (18).Type: GrantFiled: October 12, 2017Date of Patent: January 19, 2021Assignee: PISTONPOWER APSInventors: Jørgen P. Todsen, Tom Tychsen, Peter Zavadinka, Lubos Vokel, Juraj Hanusovsky, Jørgen Mads Clausen
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Patent number: 10895269Abstract: A double acting hydraulic pressure intensifier (1) is described comprising a housing (2), a first piston arrangement (7) having a first high pressure piston (8) in a first high pressure chamber (3) in the housing (2) and a first low pressure piston (9) in a first low pressure chamber (5) of the housing (2), a second piston arrangement (10), having a second high pressure piston (11) in a second high pressure chamber (4) in the housing (2) and a second low pressure piston (12) in a second low pressure chamber (6) in the housing (2), and a switching valve (14) having a valve element (15). Such a pressure intensifier should be made compact. To this end the switching valve (14) is located between the first piston arrangement (7) and the second piston arrangement (10).Type: GrantFiled: March 1, 2018Date of Patent: January 19, 2021Assignee: PISTONPOWER APSInventors: Juraj Hanusovsky, Jorgen Mads Clausen, Tom Tychsen
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Patent number: 10788061Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (17) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (17). To this end, the hydraulic actuator (1) comprises a cartridge pressure amplifier (10) comprising a sleeve (10a) being arranged at least partially inside the piston rod (6), and wherein the pressure amplifier (17) is stationarily arranged inside the sleeve (10a).Type: GrantFiled: October 12, 2017Date of Patent: September 29, 2020Assignee: PISTONPOWER APSInventors: Svend Erik Thomsen, Jørgen P. Todsen, Tom Tychsen, Peter Zavadinka, Lubos Vokel, Juraj Hanusovsky, Jørgen Mads Clausen
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Publication number: 20190271338Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (17) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (17). To this end, the hydraulic actuator (1) comprises a cartridge pressure amplifier (10) comprising a sleeve (10a) being arranged at least partially inside the piston rod (6), and wherein the pressure amplifier (17) is stationarily arranged inside the sleeve (10a).Type: ApplicationFiled: October 12, 2017Publication date: September 5, 2019Inventors: Svend Erik Thomsen, Jørgen P. Todsen, Tom Tychsen, Peter Zavadinka, Lubos Vokel, Juraj Hanusovsky, Jørgen Mads Clausen
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Publication number: 20190271332Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (10) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (10). To this end, the inlet section (18) is arranged inside the piston rod (6), and wherein the low pressure chamber (32) is stationarily arranged relative to the inlet section (18).Type: ApplicationFiled: October 12, 2017Publication date: September 5, 2019Inventors: Jørgen P. Todsen, Tom Tychsen, Peter Zavadinka, Lubos Vokel, Juraj Hanusovsky, Jørgen Mads Clausen
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Patent number: 10161425Abstract: A hydraulic steering system (1) is provided having a steering device (2) and a symmetrically acting steering motor (3), said steering device (2) comprising a supply port arrangement having a high pressure port (P) and a low pressure port (T), a working port arrangement having two working ports (L, R), a control valve (14), two working lines (18, 19) each connecting said control valve (14) with one of said working ports (L, R), and a measuring motor (23). Such a hydraulic steering system should show a comfortable steering behavior. To this end said measuring motor (23) is arranged in one of said working lines (18, 19).Type: GrantFiled: April 7, 2016Date of Patent: December 25, 2018Assignee: Danfoss Power Solutions ApSInventors: Soeren Liljenberg, Tom Rudolph, Jens Vester, Tom Tychsen, Poul Ennemark
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Publication number: 20180252242Abstract: A double acting hydraulic pressure intensifier (1) is described comprising a housing (2), a first piston arrangement (7) having a first high pressure piston (8) in a first high pressure chamber (3) in the housing (2) and a first low pressure piston (9) in a first low pressure chamber (5) of the housing (2), a second piston arrangement (10), having a second high pressure piston (11) in a second high pressure chamber (4) in the housing (2) and a second low pressure piston (12) in a second low pressure chamber (6) in the housing (2), and a switching valve (14) having a valve element (15). Such a pressure intensifier should be made compact. To this end the switching valve (14) is located between the first piston arrangement (7) and the second piston arrangement (10).Type: ApplicationFiled: March 1, 2018Publication date: September 6, 2018Inventors: Juraj Hanusovksy, Jorgen Mads Clausen, Tom Tychsen
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Publication number: 20180252240Abstract: A pressure amplifier (1) is described comprising a housing (2), an amplification piston (5) in the housing (2) having a high pressure area (9) in a high pressure chamber (5) and a low pressure area (8) in a low pressure chamber (3), and a switching valve (11) having a pressured control valve element having a larger pressure area (16) and a small pressure area (17). Such a pressure amplifier should have a high operating frequency. To this end the valve element (10) and the amplification piston (5) are located in a same bore (3, 4) in the housing (2).Type: ApplicationFiled: March 1, 2018Publication date: September 6, 2018Inventors: Lubos Vokel, Jorgen Mads Clausen, Tom Tychsen
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Publication number: 20180252241Abstract: A hydraulic pressure intensifier (1) is described comprising a housing (2) having a low pressure chamber (3) and a high pressure chamber (4), force transmitting means (5) between the low pressure chamber (3) and the high pressure chamber (4), and a switching valve (8) connecting the low pressure chamber (3) to a first pressure or to a second pressure different from the first pressure. It is intended to have a large volume on the high pressure side of the pressure intensifier. To this end the switching valve (8) is controlled by a pilot valve 18.Type: ApplicationFiled: March 1, 2018Publication date: September 6, 2018Inventors: Jorgen P. Todsen, Jorgen Mads Clausen, Tom Tychsen
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Patent number: 9950737Abstract: A hydraulic steering system (1) is described comprising a first steering circuit (2a) and a second steering circuit (2b), each of said steering circuits (2a, 2b) comprising a steering device (3a, 3b) and a steering motor (4a, 4b) connected to said steering device (3a, 3b), each of said steering devices (3a, 3b) comprising a supply port arrangement having a high pressure port (Pa, Pb) and a low pressure port (Ta, Tb), a working port arrangement having two working ports (La, Ra; Lb, Rb) connected to said steering motor (4a, 4b), a control valve (5a, 5b), and a measuring motor (6a, 6b). Such a steering system should have a comfortable steering behavior. To this end in each of said steering devices (3a, 3b) said measuring motor (6a, 6b) is arranged in a working line (19a, 20b) between said control valve (5a, 5b) and one of said working ports (La, Ra; Lb, Rb).Type: GrantFiled: April 7, 2016Date of Patent: April 24, 2018Assignee: Danfoss Power Solutions ApSInventors: Soeren Liljenberg, Tom Rudolph, Tom Tychsen, Jens Vester, Poul Ennemark
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Patent number: 9562544Abstract: A hydraulic system (1) is provided comprising a supply port arrangement (P, T), a working port arrangement (A, B), and a booster section (7), said supply port arrangement having at least a supply port (P), said booster section (7) being arranged between said supply port arrangement (P, T) and said working port arrangement (A, B). The operational possibilities of such a hydraulic system should be extended. To this end said working port arrangement comprises at least two working ports (A, B), flow direction changing means (9) are provided changing a flow direction through said working port arrangement and inactivating means (16) are provided inactivating or activating said booster section (7) for each flow direction.Type: GrantFiled: August 19, 2014Date of Patent: February 7, 2017Assignee: miniBOOSTER HYDRAULICS A/SInventors: Joergen Mads Clausen, Christen Espersen, Leif Hansen, Brian Petersen, Joergen P. Todsen, Poul Ennemark, Knud Meldgaard Jensen, Tom Tychsen
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Publication number: 20160298658Abstract: A hydraulic steering system (1) is provided having a steering device (2) and a symmetrically acting steering motor (3), said steering device (2) comprising a supply port arrangement having a high pressure port (P) and a low pressure port (T), a working port arrangement having two working ports (L, R), a control valve (14), two working lines (18, 19) each connecting said control valve (14) with one of said working ports (L, R), and a measuring motor (23). Such a hydraulic steering system should show a comfortable steering behavior. To this end said measuring motor (23) is arranged in one of said working lines (18, 19).Type: ApplicationFiled: April 7, 2016Publication date: October 13, 2016Inventors: Soeren Liljenberg, Tom Rudolph, Jens Vester, Tom Tychsen, Poul Ennemark
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Publication number: 20160297473Abstract: A hydraulic steering system (1) is described comprising a first steering circuit (2a) and a second steering circuit (2b), each of said steering circuits (2a, 2b) comprising a steering device (3a, 3b) and a steering motor (4a, 4b) connected to said steering device (3a, 3b), each of said steering devices (3a, 3b) comprising a supply port arrangement having a high pressure port (Pa, Pb) and a low pressure port (Ta, Tb), a working port arrangement having two working ports (La, Ra; Lb, Rb) connected to said steering motor (4a, 4b), a control valve (5a, 5b), and a measuring motor (6a, 6b). Such a steering system should have a comfortable steering behavior. To this end in each of said steering devices (3a, 3b) said measuring motor (6a, 6b) is arranged in a working line (19a, 20b) between said control valve (5a, 5b) and one of said working ports (La, Ra; Lb, Rb).Type: ApplicationFiled: April 7, 2016Publication date: October 13, 2016Inventors: Soeren Liljenberg, Tom Rudolph, Tom Tychsen, Jens Vester, Poul Ennemark
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Patent number: 9086050Abstract: The invention concerns a fluid rotary machine (1) with a housing (2), a shaft (3) projecting from the housing (2), and being rotatable around an axis (4) and forming part of a movement chain, and a sensor arrangement (10) comprising a transmitter (12) and a receiver (15). It is endeavored to find a simple solution for detecting the rotation of the shaft with a relatively high accuracy. For this purpose, a channel (21) is provided in the movement chain, and the transmitter (12) is connected to a transfer element (19) transferring a torque that is led through said channel (21) to a section of the movement chain that is farther away from the transmitter (12) than a transmitter-side end of the movement chain.Type: GrantFiled: March 24, 2011Date of Patent: July 21, 2015Assignee: Danfoss Power Solutions APSInventor: Tom Tychsen
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Publication number: 20150052888Abstract: A hydraulic system (1) is provided comprising a supply port arrangement (P, T), a working port arrangement (A, B), and a booster section (7), said supply port arrangement having at least a supply port (P), said booster section (7) being arranged between said supply port arrangement (P, T) and said working port arrangement (A, B). The operational possibilities of such a hydraulic system should be extended. To this end said working port arrangement comprises at least two working ports (A, B), flow direction changing means (9) are provided changing a flow direction through said working port arrangement and inactivating means (16) are provided inactivating or activating said booster section (7) for each flow direction.Type: ApplicationFiled: August 19, 2014Publication date: February 26, 2015Inventors: Joergen Mads Clausen, Christen Espersen, Leif Hansen, Brian Petersen, Joergen P. Todsen, Poul Ennemark, Knud Meldgaard Jensen, Tom Tychsen
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Patent number: 8893566Abstract: The invention concerns a fluid rotary machine (1) with a housing (2), a shaft (3) led out of the housing (2) and a sensor arrangement (10) comprising a transmitter (12) in active connection with the shaft (3), and a receiver (15). It is endeavored to arrange the sensor arrangement in an advantageous manner on the fluid rotary machine. For this purpose, the sensor arrangement (10) comprises an accommodation area, in which the transmitter (12) is arranged, the accommodation area being in fluid connection with the inside of the housing (2) and sealed towards the outside, and the receiver (15) is arranged outside the housing (2) and the accommodation area.Type: GrantFiled: March 24, 2011Date of Patent: November 25, 2014Assignee: Danfoss Power Solutions APSInventors: Tom Tychsen, Dietmar Weiss
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Publication number: 20110236243Abstract: The invention concerns a fluid rotary machine (1) with a housing (2), a shaft (3) projecting from the housing (2), and being rotatable around an axis (4) and forming part of a movement chain, and a sensor arrangement (10) comprising a transmitter (12) and a receiver (15). It is endeavoured to find a simple solution for detecting the rotation of the shaft with a relatively high accuracy. For this purpose, a channel (21) is provided in the movement chain, and the transmitter (12) is connected to a transfer element (19) transferring a torque that is led through said channel (21) to a section of the movement chain that is farther away from the transmitter (12) than a transmitter-side end of the movement chain.Type: ApplicationFiled: March 24, 2011Publication date: September 29, 2011Applicant: SAUER-DANFOSS APSInventor: Tom Tychsen
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Publication number: 20110236244Abstract: The invention concerns a fluid rotary machine (1) with a housing (2), a shaft (3) led out of the housing (2) and a sensor arrangement (10) comprising a transmitter (12) in active connection with the shaft (3), and a receiver (15). It is endeavoured to arrange the sensor arrangement in an advantageous manner on the fluid rotary machine. For this purpose, the sensor arrangement (10) comprises an accommodation area, in which the transmitter (12) is arranged, the accommodation area being in fluid connection with the inside of the housing (2) and sealed towards the outside, and the receiver (15) is arranged outside the housing (2) and the accommodation area.Type: ApplicationFiled: March 24, 2011Publication date: September 29, 2011Applicant: SAUER-DANFOSS APSInventors: Tom Tychsen, Dietmar Weiss