Patents Assigned to Danfoss
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Patent number: 11674865Abstract: A system and method utilizing a light transfer protocol for a sensor that monitors hose assembly degradation is disclosed. The system includes a sensor having one or more first alignment features, a contactless switch, and a light transmitter configured to transmit a light transfer protocol. The light transfer protocol is a sensor unique identification code recognizable by a gateway device that automatically pairs the sensor to the gateway device.Type: GrantFiled: June 21, 2019Date of Patent: June 13, 2023Assignee: DANFOSS POWER SOLUTIONS II TECHNOLOGY A/SInventors: David Samuel Remba Uribe, Glenn J. Steffen
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Patent number: 11677347Abstract: A positioning device (101) for producing a position signal indicative of a rotational position of a resolver is presented. The positioning device comprises a signal interface (102) for receiving alternating signals (V_cos, V_sin) from the resolver and a processing system (103) for generating the position signal based on position-dependent amplitudes of the alternating signals and on polarity information indicative of a polarity of an excitation signal (V_exc) of the resolver. The processing system is configured to recognize a polarity indicator, such as a change of frequency or phase, on a waveform of one or both of the alternating signals and to determine the polarity information based on the recognized polarity indicator. Thus, the polarity information related to the excitation signal is included in the alternating signals and therefore there is no need for a separate signaling channel for transferring the polarity information to the positioning device.Type: GrantFiled: March 2, 2020Date of Patent: June 13, 2023Assignee: Danfoss Editron OyInventors: Risto Tiainen, Matti Iskanius
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Patent number: 11673602Abstract: A steering wheel arrangement 1 is described comprising a steering wheel (2) having a rim (3) and a steering column 4 rotatably supported in the housing (5) and connected to the rim (3), wherein an electric machine (9, 13, 14) is operatively connected to the steering wheel (2). Such a steering wheel arrangement should be able to produce a force feedback to a traditional steering wheel in a reliable low-cost solution with a high functional safety rating. To this end electric machine (9, 13, 14) is integrated in the rim (3).Type: GrantFiled: October 16, 2019Date of Patent: June 13, 2023Assignee: Danfoss Power Solutions ApSInventor: Søren Winkler Rasmussen
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Patent number: 11668307Abstract: The disclosure provides an oil tubing installation assembly and a scroll compressor adopting the same. The oil tubing installation assembly is adapted to be installed into a shell in a vertical direction and includes: a housing on which a vertical oil tubing installation surface and an oil hole located in the oil tubing installation surface are provided; a clip adapted to be installed on the oil tubing installation surface and into the shell along with the housing; and an oil tubing assembly adapted to be installed into the clip in a vertical direction after the housing and the clip have been installed into the shell. The oil tubing assembly includes an oil tubing body and a cuboid-shaped installation block. A through hole is provided in the installation block and the through hole is configured to have a first orifice on the front surface of the installation block and a second orifice on the rear surface of the installation block. The upper end of the oil tubing body is connected to the first orifice.Type: GrantFiled: March 23, 2022Date of Patent: June 6, 2023Assignee: Danfoss (Tianjin) Ltd.Inventors: Lixin Han, Xiaodong Wang, Qing Zhang, Jing Zhao, Wenhu Yao
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Patent number: 11668301Abstract: The scroll compressor (2) includes a hermetic casing (3) comprising a mid shell (4) provided with a suction inlet (7); a compression unit (11) arranged within the hermetic casing (3); a drive shaft (27) configured to drive an orbiting scroll (13) of the compression unit (11); an electric motor (21) coupled to the drive shaft (27) and configured to drive in rotation the drive shaft (27) about its rotational axis, the electric motor (21) including a rotor (22) and a stator (23) which includes a stator stack (24), wherein the stator stack (24) is press-fitted in the mid shell (4), the suction inlet (7) is facing the stator stack (24), and the compression unit (11) includes a single suction opening (34) arranged at an opposite position in relation to the suction inlet (7).Type: GrantFiled: November 3, 2020Date of Patent: June 6, 2023Assignee: Danfoss Commercial CompressorsInventors: Patrice Bonnefoi, Yann Even, Yves Rosson, Brian Angel, Meldener Gael
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Patent number: 11655816Abstract: A fluid working system such as a pump for displacing a working fluid such as hydraulic fluid or a motor using a working fluid is provided. The system may have a positive displacement machine which includes one or more working chamber with displacement means such as a cylinder with a reciprocating piston. There are also two or more fluid ports to allow the working fluid to flow into and out of the working chamber. The working fluid flows from one fluid port means to another either being forced to do so when pumped or moving the piston when functioning as an engine. The fluid working system has associated therewith a non-dead compliance volume of a material such as syntactic foam. This compliance volume acts to smooth any pressure fluctuations within the working fluid system.Type: GrantFiled: May 8, 2015Date of Patent: May 23, 2023Assignee: Danfoss Power Solutions GmbH & Co. OHGInventors: Elliott Gruber, Luke Wadsley
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Patent number: 11656141Abstract: A pressure sensor arrangement (1) for measuring a pressure of a fluid is described, the sensor arrangement (1) comprising a connector housing (2) having a fluid opening (3) and a fluid chamber (4) in connection with the fluid opening (3), at least one pressure sensitive element (5), a membrane (9) arranged between the pressure sensitive element (5) and the fluid chamber (4), and pressure attenuation means (10). Such a pressure sensor arrangement should be able to protect the measuring membrane from high frequency pressure pulsations with low costs. To this end the pressure attenuation means (10) are arranged in the fluid chamber (4) in direct contact with the membrane (9) separating the membrane (9) from the fluid in the fluid chamber and comprise a homogenous incompressible material having a mechanical loss factor of 0.1 or higher at frequencies of 200 Hz or higher.Type: GrantFiled: June 11, 2019Date of Patent: May 23, 2023Assignee: Danfoss A/SInventor: Mohamed Benslimane
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Patent number: 11649911Abstract: A spiral hose includes: a tube with a first wall thickness; a first reinforcement package, arranged around a circumference of the tube, having a first rubber layer embedding at least one set of a first and second layer of wire wound in a helical path around the tube, a winding direction of the first layer being opposite from a winding direction of the second layer, which first reinforcement package has a first package thickness; a second reinforcement package, arranged around a circumference of the first reinforcement package, having a second rubber layer embedding at least a second set of a third and fourth layer of wire wound in a helical path around the first reinforcement package, a winding direction of the third layer being opposite from a winding direction of the fourth layer, which second reinforcement package has a second package thickness; and a cover layer.Type: GrantFiled: December 10, 2019Date of Patent: May 16, 2023Assignee: DANFOSS POWER SOLUTIONS II TECHNOLOGY A/SInventors: Kubra Aslan, Dipak Singh, Salih Karayagiz, Nivedita Singh, Bjoern Theberath, Nida Aras
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Patent number: 11652422Abstract: A power electronic device comprising a grid side (L1, L2, L3) connected to a capacitor bank (2) is described, the capacitor bank (2) being connected to ground via a switch. Such power electronic device should be used in different types of grid with low costs. To this end a varistor (5) is connected in parallel to the switch.Type: GrantFiled: June 25, 2019Date of Patent: May 16, 2023Assignee: Danfoss Power Electronics A/SInventors: Henning Markus Mortensen, Carsten R. Hansen
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Patent number: 11644028Abstract: A control arrangement for a variable displacement pump includes a pressure control unit and a separate mechanical control unit, each mounted on a housing of the variable displacement pump. The pressure control unit provides pressure control for the variable displacement pump and the mechanical control unit provides rotary feedback control for the variable displacement pump.Type: GrantFiled: April 8, 2020Date of Patent: May 9, 2023Assignee: Danfoss Power Solutions, Inc.Inventors: Doug Kardell, Stanislav Smolka
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Patent number: 11644027Abstract: A pump control system, comprising: a motor (12) configured to drive a pump (14); a pressure relief valve (22) in fluid communication with the pump (14); a torque control valve (32) connected to a swashplate of the pump (14) and in fluid communication with the pressure relief valve (22); a swashplate angle sensor (36) connected to the swashplate (34); and a computer (40) connected to the swashplate angle sensor (36) and the pressure relief valve (22) wherein the computer (40) controls the pressure relief valve (22) based upon swashplate displacement to achieve maximum system pressure. The corresponding method of controlling is also disclosed.Type: GrantFiled: March 18, 2015Date of Patent: May 9, 2023Assignee: Danfoss Power Solutions Inc.Inventors: Kevin Ligenfelter, Gary LaFayette
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Patent number: 11637517Abstract: The present invention relates to a method for estimating individual phase resistance of a motor by means of an adjustable speed drive (ASD) while the motor controlled by the ASD is running and/or is at standstill. The motor is an asynchronous motor or a synchronous motor. The invention also relates to an adjustable speed drive for executing a corresponding method.Type: GrantFiled: July 6, 2021Date of Patent: April 25, 2023Assignee: Danfoss Power Electronics A/SInventors: Jens Godbersen, Lucian Asiminoaei
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Patent number: 11635156Abstract: Air brake tubing is provided having an air brake tube body comprising at least one layer formed from a composition comprising a copolyester, polyethylene terephthalate or polybutylene terephthalate; and a thermoplastic polyurethane.Type: GrantFiled: July 26, 2021Date of Patent: April 25, 2023Assignee: Danfoss A/SInventors: Iani Manas-Zloczower, Brett William Schultz
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Patent number: 11629808Abstract: The disclosure discloses a mounting member including two support rails extending side by side. The two support rails include a first section and a second section in an extension direction thereof. The first section is adapted to carry a device with a first size, and the second section is adapted to carry a device with a second size. Grooves are provided on a top surface of the support rails so as to avoid interference between the bottom surface of the device and the top surface of the support rails. The disclosure also discloses a device assembly including a plurality of devices and the mounting member. The mounting member of the present disclosure allows the plurality of devices to be directly mounted on the two support rails without the need of additional support rails or spacers, thereby reducing the number of parts and improving the integrity and ease of installation of the device assembly.Type: GrantFiled: April 29, 2020Date of Patent: April 18, 2023Assignee: Danfoss (Tianjin) Ltd.Inventors: Peng Liu, Xiaojing Zhou, Tao Wang, Liang Fan, Ying Dong
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Patent number: 11623684Abstract: The invention relates to a hydraulic steering unit (1) including a housing (3), a spool, a sleeve (12) arranged between spool and housing (3), and a measuring motor (14) having a number of working chambers (15), wherein a first commutation geometry (18) and a second commutation geometry (19) are arranged between the sleeve (12) and the housing (3), wherein the commutation geometries (18, 19) are connected to the working chambers (15) of the measuring motor (14) and the housing includes a first direction port (4), a second direction port (5), a pressure port (6), and a return port (7). The object is to have a good steering behavior. To this end one of the commutation geometries (18) is directly connected to the first direction port (4).Type: GrantFiled: March 3, 2021Date of Patent: April 11, 2023Assignee: Danfoss Power Solutions ApSInventors: Mogens Frederiksen, Niels Arbjerg, Poul Ennemark
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Patent number: 11626383Abstract: Process for producing an electronic subassembly by low-temperature pressure sintering, comprising the following steps: arranging an electronic component on a circuit carrier having a conductor track, connecting the electronic component to the circuit carrier by the low-temperature pressure sintering of a joining material which connects the electronic component to the circuit carrier, characterized in that, to avoid the oxidation of the electronic component or of the conductor track, the low-temperature pressure sintering is carried out in a low-oxygen atmosphere having a relative oxygen content of 0.005 to 0.3%.Type: GrantFiled: December 18, 2020Date of Patent: April 11, 2023Assignee: Danfoss Silicon Power GmbHInventors: Ronald Eisele, Holger Ulrich
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Patent number: 11624564Abstract: A heat exchanger assembly (100), the heat exchanger assembly (100) comprising: a first heat exchanger (1), the first heat exchanger (1) comprising a first communicating header pipe (10), a first header pipe (12), and heat exchange tubes (9) arranged between the first communicating header pipe (10) and the first header pipe (12); and a second heat exchanger (2), the second heat exchanger (2) comprising a second communicating header pipe (20), a second header pipe (22), and heat exchange tubes (9) arranged between the second communicating header pipe (20) and the second header pipe (22), wherein the first communicating header pipe (10) is provided with a partition plate (30) and thus has a plurality of first communicating chambers (14) arranged in the axial direction of the first communicating header pipe (10), the second communicating header pipe (20) is provided with a partition plate (30) and thus has a plurality of second communicating chambers (24) arranged in the axial direction of the second communicatinType: GrantFiled: December 22, 2017Date of Patent: April 11, 2023Assignee: Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd.Inventors: Lingjie Zhang, Junfeng Jin, Xiangxun Lu, Pierre Olivier Pelletier
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Patent number: 11616353Abstract: The present disclosure provides a busbar (100), comprising: an insulating body (110); and a busbar conductor (120, 130, 140) comprising a conductor body partially encapsulated by the insulating body and a connection terminal (121, 131, 141) extending from the conductor body and configured for connecting an electrical device, and a portion of the connection terminal is surrounded by an insulating structure (10). The present disclosure further provides a power module (200) comprising the busbar and a method of manufacturing a busbar.Type: GrantFiled: September 25, 2018Date of Patent: March 28, 2023Assignee: Danfoss Silicon Power GmbHInventor: Lars Hass
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Patent number: 11613451Abstract: The present disclosure relates to a hydraulic system including a variable displacement hydraulic motor for lifting and lowering a load. The hydraulic motor has a high operating speed and a low operating speed. The system also includes an actuator for controlling whether the hydraulic motor is operating at the high or low speed, and a pressure sensor for sensing when a system pressure corresponding to the hydraulic motor exceeds a threshold pressure value. The system further includes a speed control system that controls the actuator such that the hydraulic motor is prevented from operating at the first operating speed when the system pressure exceeds the threshold pressure value.Type: GrantFiled: January 6, 2020Date of Patent: March 28, 2023Assignee: DANFOSS POWER SOLUTIONS II TECHNOLOGY A/SInventors: Vincent Joseph Duray, Jerry Carl Weber
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Patent number: D988996Type: GrantFiled: May 7, 2021Date of Patent: June 13, 2023Assignee: Danfoss Power Electronics A/SInventors: Sami Huhtakallio, Lasse Aro, Tuomas Laasanen