Patents Assigned to Danfoss
  • Patent number: 12209820
    Abstract: The present invention introduces a heat exchanger including a stack of heat transfer plates positioned between two end plates in which recesses formed in edge regions are adapted to accommodate bolts reaching from a first to a second of said two end plates, said at least one of said recesses formed with locking features adapted to engage with a locking device including an opening, where the locking device is to be positioned on the respective end plate with the opening aligned with the recess in such a manner that a bolt positioned in the recess also can project through said opening. This prevents the bold from falling out of the recesses.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: January 28, 2025
    Assignee: DANFOSS A/S
    Inventors: Helge Nielsen, Henrik Agerley Thomsen
  • Patent number: 12196468
    Abstract: A method for configuring a plurality of operating setpoints for a vapour compression system (1) is disclosed. The plurality of operating setpoints are divided into a first group (12) of operating setpoints to be generated manually and a second group (13) of operating setpoints to be generated automatically, and the operating setpoints are operated in accordance therewith. The manually generated operating setpoints (12) and the automatically generated operating setpoints (13) are provided to a setpoint manager (11), and the setpoint manager (11) checks if the provided operating setpoints (12, 13) are in compliance with a set of rules. In the case that at least some of the provided operating setpoints (12, 13) are not in compliance with the set of rules, the setpoint manager (11) adjusts at least some of the provided operating setpoints (12, 13) in accordance with the set of rules, thereby obtaining an adjusted set of operating setpoints.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 14, 2025
    Assignee: DANFOSS A/S
    Inventors: Jan Prins, Peter Reichwald, Salvatore Piscopiello
  • Patent number: 12196191
    Abstract: A joint for the angularly adjustable drive-connection of a cylinder block and a driveshaft of a hydrostatic bent axis piston unit. The joint has a shank which is rotatable about its longitudinal axis defining a joint axis, on both ends of the shank roller carriers project radially and basically perpendicular to the joint axis. On each roller carrier a roller is provided rotatable around a roller axis. The rollers are secured in axial direction against slipping-off of the roller carriers by means of an embossed area located axially outside of the roller on the respective distal end portion of the roller carrier.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: January 14, 2025
    Assignee: DANFOSS POWER SOLUTIONS GMBH & CO OHG
    Inventors: Jan Widderich, Hauke Marsch, Björn Dörntge
  • Patent number: 12186765
    Abstract: The invention relates to a device (10) for providing mist to a surrounding environment, the device (10) comprising a housing unit (12) having an inlet opening (18), an outlet opening (20), and a chamber (22) extending between the inlet opening (18) and the outlet opening (20) along a central axis (24); a nozzle unit (14) including at least one orifice (26); wherein the nozzle unit (14) is arranged in the chamber (22), the nozzle unit (14) being slidable along the central axis (24) between a closing position, in which the nozzle unit (14) closes the outlet opening (20), and an opening position, in which the at least one orifice (26) connects the chamber (22) to the surrounding environment in fluid communication; wherein the nozzle unit (14) transfers from the closing position to the opening position if a fluid pressure at the inlet opening (18) exceeds a predefined threshold; wherein the nozzle unit (14) comprises a deflector part (28) for deflecting fluid in the opening position and for closing the outlet ope
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: January 7, 2025
    Assignee: DANFOSS FIRE SAFETY A/S
    Inventors: Carsten Windt, Lars Wrang Jensen, Henrik Bygbjerg
  • Patent number: 12188597
    Abstract: An improved quick release coupling is provided. The quick release coupling enables higher fluid flow rates and lower pressure drops. The quick release coupling is configured to be a connection and disconnection under high pressure conditions on one or both of the male and the female sides of the coupling. The quick release coupling enables intentional manual disconnection as well as breakaway disconnection under high working pressures.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: January 7, 2025
    Assignee: DANFOSS POWER SOLUTIONS II TECHNOLOGY A/S
    Inventors: Amit Ramesh Shende, Sébastien Lafond, Joffrey Boutherin
  • Patent number: 12188493
    Abstract: A hydraulic control system for linear actuation that provides a bypass flow during startup of a lifting command, provides a split flow between a cylinder and a reservoir once a minimum operating speed of a pump has been reached, and provides complete flow to a cylinder after the minimum operating speed of the pump has been reached. This is achieved through control of a flow control valve and a proportional flow control valve by a processor.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 7, 2025
    Assignee: Danfoss Power Solutions Inc.
    Inventors: Aaron Darnell, Zhekang Du, Simon Nielsen
  • Patent number: 12188467
    Abstract: A hydraulic control system for linear actuation that includes an electric motor connected to a hydraulic pump and a hydraulic cylinder connected to the pump by a first flow line. A pressure transducer, a pressure control valve, and a check valve are connected to the first flow line between the pump and the cylinder and a tank is connected to the pump by a second flow line and the cylinder by a return line. A control valve is connected between the first flow line and the return line.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: January 7, 2025
    Assignee: DANFOSS POWER SOLUTIONS INC.
    Inventors: Aaron Darnell, Zhekang Du, Simon Nielsen
  • Patent number: 12188494
    Abstract: A motion control unit capable of receiving electrical power from an electrical power source and hydraulic power from a hydraulic power source. The motion control is configured to produce a blended power output derived from the electrical and hydraulic power which can be used to power a hydraulic actuator. The motion control unit can also split hydraulic power recovered from hydraulic actuator to the electrical power source and the hydraulic power source.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: January 7, 2025
    Assignee: DANFOSS A/S
    Inventors: Meng Wang, Jalpa Shah, Damrongrit Piyabongkarn
  • Patent number: 12181232
    Abstract: Disclosed in the present invention are a header assembly for a heat exchanger, and a heat exchanger. The header assembly includes: a header, having: a header wall, and a recess on the header wall or an opening penetrating the header wall at an end of the header wall; an end cap disposed at the end of the header wall to close the end of the header, the end cap having a hole, the opening or recess being at a side of the end cap that faces an end face of the end of the header wall; a distribution pipe, comprising a distribution part and a connection part, the connection part projecting from the end cap through the hole of the end cap from the distribution part; and a positioning member having a first end and a second end, the first end of the positioning member being connected to the connection part of the distribution pipe, and the second end of the positioning member being engaged in the opening or recess of the header wall of the header.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: December 31, 2024
    Assignee: DANFOSS A/S
    Inventors: Huan Jin, Weijun Wu
  • Patent number: 12184216
    Abstract: The present disclosure provides a parameter control system for a motor, comprising: a current acquisition circuit connected to the motor, so as to acquire a current output by the motor; an arithmetic processor configured to determine whether to adjust a parameter of the motor according to the current acquired, and generate a new parameter when it is determined to adjust the parameter of the motor; and an output circuit configured to output the new parameter generated by the arithmetic processor to a control device of the motor. The present disclosure also provides a motor including the parameter control system.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: December 31, 2024
    Assignee: DANFOSS (TIANJIN) LTD.
    Inventors: Shizhong Ji, Li Yao, Yingke Sun, Qingyue Meng
  • Patent number: 12173134
    Abstract: A curing composition for rubber includes: a metallic co-agent selected from the group consisting of zinc diacrylate and zinc methacrylate; organic peroxide; sulfur; and a hydrotalcite compound. The curing composition and a rubber matrix can be used to make an uncured rubber composition. A cured rubber is obtainable by curing the uncured rubber composition.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 24, 2024
    Assignee: DANFOSS A/S
    Inventors: Dipak Gopal Singh, Juergen Schmidt
  • Patent number: 12176833
    Abstract: The present invention is directed at a method for operating rotating machinery, such as an electric motor, by means of a variable speed drive (VSD). The variable speed drive is provided for identifying mechanical resonance points by means of a sensor and corresponding speeds of the machinery; storing the speeds at which the identified mechanical resonance points occur; and bypassing the speeds at which the identified mechanical resonance points occur during operation of the rotating machinery. The invention is also directed at a variable speed drive for performing said method.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: December 24, 2024
    Assignee: DANFOSS POWER ELECTRONICS A/S
    Inventors: Daniel Andersen, Jörg Dannehl, Virgil Ioan Lupu
  • Patent number: 12173713
    Abstract: A compressor includes a housing, in which a compression chamber is provided; an injection pipeline installed in the housing and configured to inject a fluid into the compression chamber; and a solenoid valve installed on the injection pipeline in the housing and configured to allow or block off the injection of the fluid through the injection pipeline.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: December 24, 2024
    Assignee: DANFOSS (TIANJIN) LTD.
    Inventors: Lin Ma, Wenhu Yao, Bin Wang, Xiaoxin Liu
  • Patent number: 12173826
    Abstract: The present disclosure relates generally to a coupling assembly made up of a male fluid coupler and a female fluid coupler for a fluid line. The male and female fluid couplers are closed to flow in the uncoupled state and are open to flow when coupled. The male fluid coupler can include an alignment compensation arrangement that can adjust for any initial misalignment between the male and female fluid couplers. The alignment compensation arrangement can function as a universal connection joint to allow the male fluid coupler to universally pivot and move radially.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: December 24, 2024
    Assignee: DANFOSS A/S
    Inventor: Amit Ramesh Shende
  • Patent number: 12168273
    Abstract: Disclosed is a method for producing a heat exchanger. The heat exchanger includes heat exchange tubes extending along a first direction and arranged along a second direction perpendicular to the first direction, and a fin. The fin is provided with fin grooves for mounting the heat exchange tubes, and each fin groove is provided with an opening on one side in a third direction perpendicular to the first direction and the second direction.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 17, 2024
    Assignee: DANFOSS A/S
    Inventors: Pierre Olivier Pelletier, Leilei Wang
  • Publication number: 20240395475
    Abstract: A half-bridge circuit arrangement and a method for actuation, has a first, upper circuit breaker, an actuation device associated therewith and a second, lower circuit breaker, an actuation device. The power input of the upper circuit breaker is connected to a first potential of a DC voltage source, the power output of the lower circuit breaker is connected to a second potential of a DC voltage source, and the center tap between the two circuit breakers is connected to an AC voltage output, wherein, after one of the two circuit breakers which is switched on as voltage generation switch for a first voltage generation period has been switched off, the other circuit breaker.
    Type: Application
    Filed: May 22, 2024
    Publication date: November 28, 2024
    Applicant: SEMIKRON DANFOSS ELEKTRONIK GMBH & CO. KG
    Inventor: Johannes KLIER
  • Patent number: 12152704
    Abstract: Described is a hose and a method of manufacturing a hose. The hose comprises: an inner tube for communicating fluid; a reinforcement layer positioned over the inner tube; an intermediate cover positioned over the reinforcement layer, wherein the intermediate cover has a thickness of between 1.3 mm and 3.0 mm and comprises a material having a hardness of between 40 Shore A and 60 Shore A; and an outer cover comprising an abrasion resistant material.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 26, 2024
    Assignee: Danfoss A/S
    Inventors: Dipak Singh, Nivedita Singh, Kubra Yilmaz
  • Patent number: 12155382
    Abstract: A phase loss detection device, a compressor including the same, and a phase loss detection method are disclosed. The phase loss detection device may include a signal converting circuit and a processor. The signal converting circuit is configured to convert voltage signals corresponding to respective phases of multiphase alternating current (AC) power monitored from a motor. The processor is configured to receive the converted voltage signals from the signal converting circuit, and configured to calculate, based on the converted voltage signals, one or more phase angles between the respective voltage signals. The processor is configured to determine that phase loss occurs if any one or more of the calculated phase angles deviate from a nominal value of a corresponding phase angle of the multiphase AC power by a value higher than a predetermined threshold. The phase loss detection can be performed in a convenient, effective and reliable way.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: November 26, 2024
    Assignee: DANFOSS (TIANJIN) LTD.
    Inventors: He Ma, Li Yao, Guocun Li, Bin Zhao, Zhiwei Shang, Yongjian Guo
  • Patent number: 12152959
    Abstract: A crankshaft simulation device includes: a fixed shaft in which a through hole extending in the axial direction of the fixed shaft is provided; a wedge-shaped rod which is movable in the through hole under an external force, and the first end of the wedge-shaped rod is extendable from the first axial end of the fixed shaft, the second end of the wedge-shaped rod is extendable from the second axial end of the fixed shaft, and the first end of the wedge-shaped rod is provided with an inclined surface so that the first end of the wedge-shaped rod is wedge-shaped; a support rod extending from the first axial end of the fixed shaft in the axial direction of the fixed shaft; a movable shaft in which a flat through hole is provided, and the support rod is inserted into the flat through hole, and the size of the flat through hole in the radial direction of the movable shaft is configured to allow the movable shaft to be shifted in the radial direction of the movable shaft, and the flat through hole is configured to a
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: November 26, 2024
    Assignee: DANFOSS (TIANJIN) LTD.
    Inventors: Zhuangzhi Yang, Jie Lin, Zhi Li
  • Patent number: D1053807
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: December 10, 2024
    Assignee: DANFOSS POWER ELECTRONICS A/S
    Inventors: Sami Huhtakallio, Lasse Aro, Tuomas Laasanen