公开(公告)号：EP4327005A1

公开(公告)日：2024-02-28

申请号：EP22709269.9

申请日：2022-02-11

Applicant: Danfoss A/S

Inventor： LARSEN, Sigurd

IPC: F16K31/04 ,  F16K27/00

公开(公告)号：EP3671072A1

公开(公告)日：2020-06-24

申请号：EP18214586.2

申请日：2018-12-20

Applicant: Danfoss A/S

Inventor： LARSEN, Sigurd

IPC: F25B41/06 ,  F16K31/04

Abstract: A valve (1), in particular an expansion valve, is described comprising a valve seat (2), a valve element (3) movable relatively to the valve seat (2), and drive means driving the valve element (3), wherein the drive means comprise a rotary motor (4) having a rotor (6) and a transmission having a rotating member (7, 10) and a non-rotating member (11) and a threaded connection between the rotating member (7, 10) and the stationary member (11). In such a valve sticking of the valve element (10) to the valve seat (2) should be avoided.
To this end the rotor (6) and the rotating member (7) are rotatable relative to each other, wherein the transmission comprises a follower arrangement comprising a first part (8) connected to the rotor (6) and a second part (9) connected to the rotating member (7), wherein the first part (8) and the second part (9) are rotatable relative to each other over a limited angle.

公开(公告)号：EP3671071A1

公开(公告)日：2020-06-24

申请号：EP18214584.7

申请日：2018-12-20

Applicant: Danfoss A/S

Inventor： LARSEN, Sigurd ,  HARCK, Kurt ,  PAWLIK, Jens

IPC: F25B41/06

Abstract: A valve (1), in particular expansion valve, is described comprising a valve element (6) driven by a rotary motor (7) comprising a rotor (9) arranged inside a motor section (19) of a tube (14), the tube (14) having a wall of a first thickness in the motor section (19) and being connected to a valve housing (2) by welding.
Such a valve should have a small motor and a tube which can be produced with low costs.
To this end the tube (14) comprises flange (23) at the end adjacent the valve housing (2), the flange (23) comprising a second thickness larger than the first thickness.

公开(公告)号：EP3189255B1

公开(公告)日：2019-12-11

申请号：EP15750785.6

申请日：2015-08-19

Applicant: Danfoss A/S

Inventor： HARCK, Kurt ,  PAWLIK, Jens ,  LARSEN, Sigurd

IPC: F16K1/12 ,  F16K27/10 ,  F16K31/04 ,  F16K3/26

公开(公告)号：EP3179144A1

公开(公告)日：2017-06-14

申请号：EP15198334.3

申请日：2015-12-08

Applicant: Danfoss A/S

Inventor： HARCK, Kurt ,  DENG, Hongmei ,  REESE, Birthe Nissen ,  PAWLIK, Jens ,  LARSEN, Sigurd ,  MATZEN, Detlef

IPC: F16K31/04

CPC classification number: F16K31/047

Abstract: A linear actuator (1) comprising a first part (3) and a second part (5) is disclosed. The first part (3) is arranged to rotate along with a rotating part (4) of a motor (2), and the second part (5) is arranged to drive an actuated part (18, 22). A coupling (6) interconnects the first part (3) and the second part (5) to allow the second part (5) to rotate along with the first part (3) at the same angular velocity as the first part (3). The coupling (6) defines a fit tolerance between the first part (3) and the second part (5) allowing the first part (3) to rotate a predefined distance before engaging the second part (5) and rotating the second part (5) along with the first part (3). The fit tolerance ensures that the first part (3) reaches a certain angular velocity and thereby that the resulting torque transfer from the first part (3) to the second part (5) is sufficient, e.g. to release the actuated part (18, 22) from a pretensioned state.

Abstract translation: 公开了包括第一部分（3）和第二部分（5）的线性致动器（1）。 第一部分（3）布置成与马达（2）的旋转部分（4）一起旋转，并且第二部分（5）布置成驱动致动部分（18,22）。 连接件（6）将第一部件（3）和第二部件（5）互连以允许第二部件（5）以与第一部件（3）相同的角速度与第一部件（3）一起旋转。 联接件（6）限定第一部分（3）和第二部分（5）之间的配合公差，允许第一部分（3）在接合第二部分（5）和旋转第二部分（5）之前旋转预定距离 ）以及第一部分（3）。 配合公差确保了第一部件（3）达到某个角速度并且由此从第一部件（3）到第二部件（5）的所产生的转矩传递足够，例如， 以将致动部件（18,22）从预张紧状态释放。

公开(公告)号：EP4479668A1

公开(公告)日：2024-12-25

申请号：EP22844240.6

申请日：2022-12-30

Applicant: Danfoss A/S

Inventor： REESE, Birthe Nissen ,  LARSEN, Sigurd ,  WINDELBORG, Nicolai Risom

IPC: F16K31/04 ,  H02K5/128 ,  F16K1/54 ,  F16K31/50 ,  F16K1/02 ,  F16K27/02

公开(公告)号：EP4467856A1

公开(公告)日：2024-11-27

申请号：EP23175777.4

申请日：2023-05-26

Applicant: Danfoss A/S

Inventor： FOCK, Clemens ,  LARSEN, Sigurd

IPC: F16K11/10 ,  F16K15/18 ,  F16K27/02

Abstract: The invention relates to a combined valve subassembly (2) and a combined valve arrangement (1) comprising a housing (3) and such a combined valve subassembly (2). The combined valve subassembly (2) comprises a variable orifice device (4) for restricting a fluid flow throughput and a valve poppet member (6) for a passive valve unit (5). The valve seat (7) of the passive valve unit (5) is formed integral with the housing (3). The combined valve subassembly (2) has a connecting member (15, 26) that comprises a guiding member (18, 27) with a guiding surface (16) for the valve poppet member (6) and at least one fluid conduit (17) for fluidly connecting the variable orifice device (4) and the valve poppet member (6).

公开(公告)号：EP3672030A1

公开(公告)日：2020-06-24

申请号：EP18214590.4

申请日：2018-12-20

Applicant: Danfoss A/S

Inventor： LARSEN, Sigurd ,  VAGNSHOLDT, Charlotte Vibeke Pingel

IPC: H02K5/128 ,  H02K1/18 ,  F16K31/04 ,  F25B41/06

Abstract: Valve (1), in particular expansion valve, is described comprising a valve element driven by an actuator and being arranged in a valve housing arrangement (4, 5, 15), wherein the valve housing arrangement (4, 5, 15) comprises a housing (4), a tube (15) connected to the housing (4) and at least one connector (5) extending from the housing (4), wherein the actuator comprises a rotary motor having a stator and a rotor, the rotor being arranged inside the tube (15) and the stator being arranged outside the tube (15).
A simple way is needed to position the stator and the rotor relative to each other.
To this end the stator is fixed to a stator holder (16) which is arranged around the tube (15) and connected to the housing arrangement (4, 5, 15).

公开(公告)号：EP3189255A1

公开(公告)日：2017-07-12

申请号：EP15750785.6

申请日：2015-08-19

Applicant: Danfoss A/S

Inventor： HARCK, Kurt ,  PAWLIK, Jens ,  LARSEN, Sigurd

IPC: F16K1/12 ,  F16K27/10 ,  F16K31/04

Abstract: A valve (1) comprising a first housing part (2) and a second housing part (3), the first housing part (2) and the second housing part (3) being made from a sheet metal material, and being joined by means of welding, preferably laser welding, to form a closed housing of the valve (1). An actuator (9) is arranged inside the housing for driving movements of a first valve member (7) and/or a second valve member (8), said actuator (9) being arranged directly in a flow of fluid flowing in the fluid flow path during operation of the valve (1). The valve (1) is hermetically sealed due to the welding of the housing parts (2, 3).

Abstract translation: 1。一种包括第一壳体部件（2）和第二壳体部件（3）的阀门（1），所述第一壳体部件（2）和所述第二壳体部件（3）由金属片材料制成并且通过装置 的焊接，优选激光焊接，以形成阀（1）的封闭壳体。 致动器（9）布置在壳体内部用于驱动第一阀构件（7）和/或第二阀构件（8）的运动，所述致动器（9）直接布置在流体流中流动的流体流中 在阀（1）的操作期间的路径。 由于壳体部分（2,3）的焊接，阀（1）被气密地密封。

公开(公告)号：EP3052842A1

公开(公告)日：2016-08-10

申请号：EP14787276.6

申请日：2014-09-19

Applicant: Danfoss A/S

Inventor： HARCK, Kurt ,  LARSEN, Sigurd

IPC: F16K27/10

Abstract: A method for attaching an object, such as a sight glass (3) or an electrical connector (4), to a structure, such as a valve housing (1), the object (3, 4) comprising an annular flange (6, 11). The object (3, 4) is mounted in an opening (7, 12) of the structure (1) with the annular flange (6, 11) in abutment with an annular edge (8, 13) of the opening (7, 12). The object (3, 4) is attached to the structure (1) by performing welding of the annular edge (8, 13) and the annular flange (6, 11) and displacing the welding beam along the annular flange (6, 11).