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公开(公告)号：US20130108498A1
公开(公告)日：2013-05-02
申请号：US13659011
申请日：2012-10-24
Applicant: Danfoss A/S
Inventor： Hans Christian Petersen , Ove Thorboel Hansen , Lars Martensen , Palle Olsen , Erik Haugaard
IPC: F04C15/00
CPC classification number: F04C15/0023 , F01C21/0809 , F01C21/108 , F04C2/344 , F04C2230/91
Abstract: The invention concerns a vane cell machine with a stator and a rotor having radially displaceable vanes arranged in guides, said vanes bearing on an inside of the stator and bordering, together with the rotor, the stator and a side wall, work chambers at each axial end of the rotor. It is endeavoured to provide a vane cell machine that has a good internal tightness, in which the wear is still kept small. For this purpose, in a radially internal area the side wall comprises an insert that is axially movable in the side wall and has a pressure application surface axially inside and axially outside.
Abstract translation: 本发明涉及具有定子和转子的叶片式电池机，其具有布置在导向器中的径向位移的叶片，所述叶片承载在定子的内侧，与转子一起与定子和侧壁接合，每个轴向的工作室 转子末端。 努力提供具有良好的内部密封性的叶片式电池机，其中磨损仍然很小。 为此，在径向内部区域中，侧壁包括可在侧壁中轴向移动并具有轴向内侧和轴向外侧的压力施加表面的插入件。
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公开(公告)号：US20040256586A1
公开(公告)日：2004-12-23
申请号：US10869369
申请日：2004-06-16
Applicant: Danfoss A/S
Inventor： Lars Denning , Kenneth Michelsen , Joergen Seindal Wiwe
IPC: F16K031/44
CPC classification number: F16K39/022 , F16K31/047 , F16K31/56
Abstract: The invention concerns a fail-safe valve having a valve element, and a control motor being connected with the valve element via a driveline. It is endeavoured to ensure the tightness of the refrigeration system in a simple manner. For this purpose, it is ensured that the valve element is located inside and the control motor outside a closed valve housing, that the drive line has a magnetic coupling, which acts through the housing, and that the valve element is pressure-released. In addition, a resetting device is provided that causes the valve element to be returned to a predetermined position upon the undesired cessation of control motor operation.
Abstract translation: 本发明涉及一种具有阀元件的故障安全阀，以及通过传动系与阀元件连接的控制电动机。 努力以简单的方式确保制冷系统的紧密性。 为此，确保阀元件位于内部并且控制马达位于封闭的阀壳体外部，驱动线具有通过壳体作用的磁耦合，并且阀元件被压力释放。 此外，提供了一种复位装置，其在不期望的停止控制电动机操作时使阀元件返回到预定位置。
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公开(公告)号：US20040112990A1
公开(公告)日：2004-06-17
申请号：US10721109
申请日：2003-11-25
Applicant: Danfoss A/S
Inventor： Birthe Noergaard Laursen , Chinh Minh Trinh
IPC: B05B001/14
CPC classification number: B05B1/3442 , F23D11/24 , F23D11/383
Abstract: A nozzle, especially an atomizing nozzle for an oil burner, has a housing with a nozzle opening, and a distributing insert which from the interior of the housing lies on the housing in the area of the nozzle opening and is held in the housing with the help of a deformed housing section. To better assure the functioning of the nozzle an elastically deformable element is arranged between the housing section and the distributing insert.
Abstract translation: 喷嘴，特别是用于油燃烧器的雾化喷嘴，具有带有喷嘴开口的壳体，以及从壳体内部位于喷嘴开口区域中的壳体上的分配插入件，并且保持在壳体中 变形的房屋部分的帮助。 为了更好地确保喷嘴的功能，弹性变形元件布置在壳体部分和分配插入件之间。
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公开(公告)号：US20040084646A1
公开(公告)日：2004-05-06
申请号：US10693349
申请日：2003-10-24
Applicant: Danfoss A/S
Inventor： Soeren Michael Larsen , Erik Casper Joergensen , Michael Birkelund
IPC: F16K031/12
CPC classification number: F16K31/406
Abstract: An axial valve has a housing, an inlet, an outlet, a valve seat between the inlet and the outlet, and a valve element cooperating with the valve seat, and is controlled by a pilot valve arranged between the inlet and the outlet, with the valve element being moveable parallel to a flow path from the inlet to the outlet and surrounding an interior space. Without changing the external measurements of the valve an increased through flow is achieved in that a first section of the flow path leads through the interior space and a pressure space is arranged between the housing and the valve element, in which pressure space in the closed condition of the pilot valve a closing pressure is formed and applied to the valve element.
Abstract translation: 轴向阀具有壳体，入口，出口，入口和出口之间的阀座，以及与阀座配合的阀元件，并且由设置在入口和出口之间的先导阀控制， 阀元件可平行于从入口到出口并围绕内部空间的流动路径移动。 在不改变阀的外部测量的情况下，通过流动路径的第一部分引导通过内部空间并且在壳体和阀元件之间设置有压力空间，在闭合状态下的压力空间 所述先导阀的闭合压力被形成并施加到所述阀元件。
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公开(公告)号：US20250163937A1
公开(公告)日：2025-05-22
申请号：US18948867
申请日：2024-11-15
Applicant: Danfoss A/S
Inventor： Brenden Richman , Karthik Krishna , Jin Yan
Abstract: A refrigerant compressor includes an impeller rotatable about an axis and a volute. A diffuser is axially between a first wall and a second wall, and radially between an outlet of the impeller and the volute. A diffuser plate provides the second wall, which includes a plurality of quarter wave tubes, each of the plurality of quarter wave tubes including a cylindrical blind hole extending radially from the second wall.
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Patent Agency Ranking
公开(公告)号：US12281826B2
公开(公告)日：2025-04-22
申请号：US17920947
申请日：2021-04-22
Applicant: Danfoss A/S
Inventor： Roozbeh Izadi-Zamanabadi , Glenn Andreasen , Peter Reichwald
Abstract: A method for monitoring a refrigerant charge in a vapour compression system (1) is disclosed, the vapour compression system (1) including a compressor unit (2), a heat rejecting heat exchanger (3), a high pressure expansion device (4), a receiver (5), at least one expansion device (9, 10), and at least one evaporator (11, 12) arranged in a refrigerant path. A change in net mass flow into or out of the receiver (5) and/or a change in net enthalpy flow into or out of the receiver (5) is detected, and a pressure inside the receiver (5) is monitored as a function of time, following the detected change in net mass flow and/or in net enthalpy flow. A time constant being representative for dynamics of the receiver (5) is derived, based on the monitored pressure as a function of time, and information regarding a refrigerant charge in the vapour compression system (1) is derived, based on the derived time constant.
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公开(公告)号：US12270422B2
公开(公告)日：2025-04-08
申请号：US17878991
申请日：2022-08-02
Applicant: Danfoss A/S
Inventor： Stig Kildegaard Andersen , Poul Erik Hansen , Georg Herborg Enevoldsen , Kevin Evald
IPC: F04F13/00
Abstract: A pressure exchanger with a valve system includes a cylinder barrel (1), two valve plates (2) and two port plates (3, 4), wherein the cylinder barrel (1) has at least one cylinder (7) which accommodates a piston (8). The objective is to provide a pressure exchanger with low wear and a low maintenance effort. This objective is solved by a pressure exchanger including a piston (8) braking system and that the piston (8) includes a pressure relief arrangement.
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98.发明申请公开(公告)号：US20250067592A1
公开(公告)日：2025-02-27
申请号：US18810872
申请日：2024-08-21
Applicant: Danfoss A/S
Abstract: A method of monitoring a rotating machine configured for energy transfer having a plurality of subsystems, each subsystem includes one cylinder. In the method a measurement signal of a vibration of the rotating machine is obtained and the vibration measurement signal (2) is sampled into a plurality of vibration subsignals (21, 22, 23, 24, 25), each vibration subsignal (21, 22, 23, 24, 25) corresponding to one full revolution of the rotating machine. A reference vibration subsignal (20) is determined based on an average of the plurality of vibration subsignals (21, 22, 23, 24, 25). The reference vibration subsignal (20) is sampled into a plurality of signal snippets (201, 202, 203, 204, 205), each signal snippet (201, 202, 203, 204, 205) assigned to one subsystem of the rotating machine. A cross-correlation analysis of the plurality of signal snippets (201, 202, 203, 204, 205) is performed for identifying a potential fault state of the rotating machine. The disclosure further discloses a rotating machine configured for energy transfer having a plurality of subsystems, each subsystem including one cylinder, is provided, wherein the rotating machine further includes a control unit adapted to perform a method according the disclosure.
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公开(公告)号：US20250051934A1
公开(公告)日：2025-02-13
申请号：US18718482
申请日：2022-12-14
Applicant: Danfoss A/S
Inventor： Helge NIELSEN
Abstract: An electrolyte plate (3a, 3c) for an electrolyzer cassette (1), the electrolyzer cassette (1) includes at least one cooling plate (2). The electrolyte plate (3a, 3c) is formed with at least one opening (7in, 7out) for a cooling fluid to pass the electrolyte plate (3a, 3c), at least one electrolyte fluid inlet (8in, 9in) for an electrolytic fluid to pass the electrolyte plate (3a, 3c), and at least one gas outlet (8out, 9out) for a gas to pass the electrolyte plate (3a, 3c). A porous area is formed between the at least one electrolyte fluid inlet (8in, 9in) and the at least one gas outlet (8out, 9out), the porous area being formed with openings (11) adapted to pass gas across the electrolyte plate (3a, 3c) between a membrane (4) to be positioned at the one side of the electrolyte plate (3a, 3c), and an electrolyte fluid path (6a, 6c) positioned at the other side of the electrolyte plate (3a, 3c).
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公开(公告)号：US20250043445A1
公开(公告)日：2025-02-06
申请号：US18718513
申请日：2022-12-14
Applicant: Danfoss A/S
Inventor： Helge NIELSEN
Abstract: A membrane assembly for an electrolyzer cassette (1) includes a membrane (4) and a gasket arrangement including a first gasket part (13) and a second gasket part (14). The membrane (4) is arranged between the first gasket part (13) and the second gasket part (14), and the gasket arrangement includes a locking arrangement (15, 16) for fixating the first gasket part (13), the membrane (4) and the second gasket part (14) relative to each other. The disclosure further discloses an electrolyzer cassette (1) including such a membrane assembly and a method for assembling such a membrane assembly.
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