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公开(公告)号：US10288051B2
公开(公告)日：2019-05-14
申请号：US15187940
申请日：2016-06-21
Applicant: Danfoss A/S
Inventor： Stig Kildegaard Andersen , Poul Erik Hansen , Erik Haugaard
Abstract: A hydraulic machine arrangement (1) is described having a housing (5), a working section and a hollow inside said housing (5), a supply port arrangement LPin, HPin, LPout connected to said working area, and a leakage path (7) between said working section and said hollow. It should be possible to detect wear with simple means. To this end, said housing (5) is provided with a leakage port (8) connected to said hollow.
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公开(公告)号：US10208994B2
公开(公告)日：2019-02-19
申请号：US15840573
申请日：2017-12-13
Applicant: Danfoss A/S
Inventor： Kenneth Bank Madsen , Leif Skovvang Nielsen , Flemming Morten Schmidt , Frede Schmidt
Abstract: The invention relates to a method for configuring, on a control unit, operating parameters of a plurality of devices of a refrigeration system. A user selects on the control unit, among the plurality of devices of the refrigeration system, a first device to configure. Information of valid configurable operating parameters of the first device is provided on the control unit. The user selects at least one of the valid configurable operating parameters of the first device, thereby configuring the first device. Information stored about operating parameters of other devices of the refrigeration system, based on the configuration of the first device, is then provided on the control unit. Finally, the user confirms, on the control unit, one or more operating parameters of one or more of the other devices, thereby configuring the one or more other devices. The invention also relates to a control unit and a refrigeration system.
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公开(公告)号：US10180195B2
公开(公告)日：2019-01-15
申请号：US14900652
申请日：2014-06-26
Applicant: DANFOSS A/S
Inventor： Leo Finn Jensen
Abstract: A solenoid valve includes a housing, having an inlet and an outlet, wherein the solenoid valve also includes a valve element and a valve seat. To provide a solenoid valve to be used with high maximum operating pressure differences between inlet and outlet, the solenoid valve includes at least one progressive spring, wherein the valve element is forced by the at least one progressive spring. Thereby, the spring force acting on the valve element in the closed position of the valve may be decreased, while still retaining a large spring force in the opened position of the solenoid valve.
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公开(公告)号：US10170226B2
公开(公告)日：2019-01-01
申请号：US15503040
申请日：2015-06-23
Applicant: DANFOSS A/S
Inventor： Claus Cornett Nielsen , Kristian Melgaard Jørgensen
Abstract: A spool arrangement 1 is described comprising a spool member (47) having a coil embedded in a spool housing (48) made of plastic material and protection means (2, 13, 28) comprising at least two parts together forming a receiving volume (46), said spool member (47) being located in said receiving volume. Such a spool arrangement (1) should be used in an environment in which there is a risk of explosions. To this end said parts form protective walls on all sides of said receiving volume (46).
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公开(公告)号：US10145366B2
公开(公告)日：2018-12-04
申请号：US15017764
申请日：2016-02-08
Applicant: Danfoss A/S
Inventor： Stig Kildegaard Andersen , Erik Haugaard , Palle Olsen , Poul Erik Hansen
Abstract: A hydraulic arrangement (1) is provided comprising a pressure exchanger (2) having an axis (3) of rotation, and a booster pump (4), said pressure exchanger (2) and said booster pump (4) being connected to each other. Such a hydraulic arrangement should have a good efficiency. To this end a single connection flange (5) is provided between said pressure exchanger (2) and the booster pump (4).
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Patent Agency Ranking
公开(公告)号：US20180128394A1
公开(公告)日：2018-05-10
申请号：US15569868
申请日：2016-03-01
Applicant: Danfoss A/S
Inventor： Aravind Vijayan , Raghavendra Venkatesh , John Arul Mike Prakash , Detlef Matzen
IPC: F16K31/124 , F16K31/42 , F16K31/40
CPC classification number: F16K31/1245 , F16K31/406 , F16K31/42
Abstract: The present invention relates to a top cover (3) for a soft throttling valve body (2), to a soft throttling valve (1), and to a method for throttling a main valve of a soft throttling valve (1). A follower arrangement (8) is arranged to throttle a pilot fluid flow for setting a degree of opening of the main valve in order to allow a soft throttling of the main valve, a throttling of the pilot fluid flow depending on a degree of opening of the main valve, so as to allow for a soft throttling process of the main valve. Thus, a self-controlled throttling of pilot fluid flow driving the main valve in order to establish a partial opening of the main valve becomes possible. By that, a good prevention of pressure shocks when throttling the valve is allowed and a good control for partially opening the main valve is achieved.
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公开(公告)号：US09945231B2
公开(公告)日：2018-04-17
申请号：US14930720
申请日：2015-11-03
Applicant: Danfoss A/S
Inventor： Erik Haugaard , Hans Christian Petersen
CPC classification number: F01C21/0809 , F01C1/3448 , F01C21/0836 , F01C21/106 , F04C2/3446 , F04C2/3448 , F04C18/3448
Abstract: The invention specifies a hydraulic vane-type machine (1) having a stator (2) and having a rotor (3) which has multiple vanes (4), each of which vanes is radially displaceable in a guide (5) in the rotor (3), bears against an inner circumference (6) of the stator (2), and, together with the rotor (3), the stator (2) and in each case one side wall (7) at each axial end of the rotor (3), delimits working chambers whose volumes vary in the event of a rotation of the rotor (3) relative to the stator (2). It is sought to obtain a certain degree of freedom for the design of the inner circumference. For this purpose, it is provided that each vane (4) has, on its radially inner side, an abutment surface (17) which bears radially at the outside against a cam disk (15).
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公开(公告)号：US09926930B2
公开(公告)日：2018-03-27
申请号：US15017759
申请日：2016-02-08
Applicant: Danfoss A/S
Inventor： Erik Haugaard
CPC classification number: F04C15/06 , F04C2/3441 , F04C2/3448 , F04C2250/101 , F04C2250/102
Abstract: A vane pump (1) is disclosed comprising a housing (2) having a stator bore, a rotor (4) being rotatably mounted within said stator bore, and having a number of vanes (5) slidably mounted in said rotor (4) in radial direction of said rotor (4), an inlet (11) and an outlet (12). Such a vane pump should have a good efficiency. To this end said inlet (11) opens in an axial end wall of said stator bore (3) and said outlet (12) is connected to an outflow area formed in a circumferential wall (3) of said stator bore.
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公开(公告)号：USD813351S1
公开(公告)日：2018-03-20
申请号：US29570297
申请日：2016-07-07
Applicant: DANFOSS A/S
Designer： Kurt Harck , Sigurd Larsen
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公开(公告)号：US09915248B2
公开(公告)日：2018-03-13
申请号：US12958794
申请日：2010-12-02
Applicant: Ove Thorboel Hansen
Inventor： Ove Thorboel Hansen
CPC classification number: F04B1/124 , F01B3/0085 , F04B1/2014
Abstract: The invention concerns a hydraulic piston machine, in particular a water hydraulic machine, with at least one cylinder, in which a piston (4) is arranged to reciprocate, the piston (4) comprising a hollow that is surrounded by an annular wall and has one open end. It is endeavored to keep cavitations small. For this purpose, a filling member (13) is arranged in the hollow (12), the filling member (13) having at least a radial projection (22) and the annular wall (16) having at least a radial depression (17) in the inside facing the hollow (12), or the annular wall (16) having a radial projection and the filing member (13) having a radial depression, the depression having a restraint (19), at least at the end adjacent to the open end (18) of the hollow (12), and the projection (22) and the depression (17) engaging each other.
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