公开(公告)号：US10962143B2

公开(公告)日：2021-03-30

申请号：US16433405

申请日：2019-06-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Marcin Cis ,  Piotr Sawicki

IPC: F16K49/00 ,  F16K31/06 ,  F28F13/06 ,  F15B13/043

Abstract: The present disclosure provides a heat exchanger system for a servovalve, comprising a base comprising a supply port in fluid communication with a return port, a first passage for fluid connection to a source of cooling fluid, and a second passage in fluid communication with the return port. The system further comprises one or more pipes located over a surface of the base, the one or more pipes fluidly connected between the first passage and the second passage, such that in use cooling fluid may flow from the first passage to the second passage via the network of pipes.

公开(公告)号：US20200025255A1

公开(公告)日：2020-01-23

申请号：US16511383

申请日：2019-07-15

Applicant: Hamilton Sundstrand Corporation

Inventor： Dariusz Kielbowicz ,  Marcin Cis

IPC: F16D1/04 ,  H02K49/10

Abstract: The present disclosure relates to coupling assemblies for drive shaft assemblies. The coupling assembly comprises a first portion and a second portion which are configured to couple to one another such that the second portion is capable of rotationally driving the first portion about an axis of rotation. The first portion is provided with a first magnet and the second portion is provided with a second magnet. The first and second magnets are arranged to repel each other such that the first and second portions are biased away from each other in an axial direction that is parallel to the axis of rotation.

公开(公告)号：US11448263B2

公开(公告)日：2022-09-20

申请号：US16511383

申请日：2019-07-15

Applicant: Hamilton Sundstrand Corporation

Inventor： Dariusz Kielbowicz ,  Marcin Cis

IPC: F16D1/04 ,  H02K49/10

Abstract: a coupling assembly includes a first portion and a second portion which are configured to couple to one another such that the second portion is capable of rotationally driving the first portion about an axis of rotation. The first portion is provided with a first magnet and the second portion is provided with a second magnet. The first and second magnets are arranged to repel each other such that the first and second portions are biased away from each other in an axial direction that is parallel to the axis of rotation.

公开(公告)号：US11060631B2

公开(公告)日：2021-07-13

申请号：US15984493

申请日：2018-05-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Marcin Cis ,  Sebastian Zuraw

IPC: F16K31/42 ,  F16K11/07 ,  F15B13/043 ,  F16K51/00 ,  F15B9/06 ,  F15B9/07

Abstract: A servovalve includes: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a jet pipe assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow. The spool includes a tubular body defining a path for fluid flow, the tubular body closed at each end by a respective end cap having openings via which, in use, fluid enters the interior of the spool. The end caps extend within the tubular body at least to an extent that they overlap the openings, and wherein the end caps are provided with filter means for filtering the fluid from the openings as it enters the spool.

公开(公告)号：US10955020B2

公开(公告)日：2021-03-23

申请号：US16030944

申请日：2018-07-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Marcin Cis ,  Piotr Sawicki

IPC: F15B13/043 ,  F16F1/16

Abstract: A new method of forming a torsion spring for use in a servovalve is described. The method comprises individually forming the different components of the torsion spring and then connecting the individual components together using a brazing process. The torsion spring created by this method is also described.

公开(公告)号：US10927859B2

公开(公告)日：2021-02-23

申请号：US15647581

申请日：2017-07-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Piotr Sawicki ,  Marcin Cis

IPC: F15B13/043 ,  F15B9/07 ,  F15B13/042 ,  F16K31/36 ,  F15B19/00 ,  F15B13/00

Abstract: A system is described for positioning and locking in place a nozzle within a cylindrical bore of a body, and a method for positioning and locking in place a nozzle within a cylindrical bore of a body is also described. The system has a nozzle having a tubular shape extending between a first end and a second end with an outer cylindrical surface and an inner surface, said inner surface comprising a thread. The system also has a locking member provided within said nozzle and comprising an outer circumferential surface having a thread that corresponds to the thread of the inner surface of the nozzle. The system also has means for providing torque to said locking member to screw said locking member into and within said nozzle via said threaded surfaces to thereby create a press-fit between said outer cylindrical surface and an inner surface of said cylindrical bore.

公开(公告)号：US12038025B2

公开(公告)日：2024-07-16

申请号：US18455950

申请日：2023-08-25

Applicant: Hamilton Sundstrand Corporation

Inventor： Michal Bielen ,  Marcin Cis ,  Lukasz Teuerle ,  Bartosz Chabko

IPC: F15B13/04 ,  F15B13/043 ,  F16K11/07 ,  F16K31/06 ,  F16K31/124

CPC classification number: F15B13/0433 ,  F15B13/0435 ,  F16K11/07 ,  F16K31/0613 ,  F16K31/0627 ,  F16K31/0679 ,  F16K31/0682 ,  F16K31/124

Abstract: An integral flapper and nozzle structure for a servo valve assembly whereby the flapper, orifices and nozzles are formed by sheets of metal formed into a single component.

公开(公告)号：US11525483B2

公开(公告)日：2022-12-13

申请号：US16217080

申请日：2018-12-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Dariusz Kielbowicz ,  Marcin Cis

IPC: F16D3/18 ,  F16D3/06

Abstract: A coupling for allowing torque transmission between a first and second shaft, the coupling comprising: a cup-shaped portion provided at a first end of said first shaft and a first end of said second shaft being positioned within said cup-shaped portion; and said coupling further comprising a biasing means positioned between said first and second shafts, such that said biasing means is in contact with both of said first and second shafts. A shaft system can include the first coupling in combination with a third shaft and a second coupling that is provided between the third shaft and either a second end of said first shaft or a second end of said second shaft. The second coupling is identical to the first coupling.

公开(公告)号：US10937585B2

公开(公告)日：2021-03-02

申请号：US16223156

申请日：2018-12-18

Applicant: Hamilton Sundstrand Corporation

Inventor： Marcin Cis ,  Patryk Szczesny

IPC: H01F21/06 ,  H01F27/26 ,  H01F27/38 ,  G01D5/22 ,  H01F27/32 ,  H01F41/02

Abstract: An electromagnetic device is disclosed, the electromagnetic device comprising a core support having an exterior surface comprising at least one radial protrusion, a tubular magnetic core positioned around a portion of the length of the core support, the tubular magnetic core having an interior surface, at least one indent located in the interior surface of the tubular magnetic core, wherein the at least one protrusion is located within the at least one indent to prevent relative longitudinal movement between the core support and tubular magnetic core, and a primary coil and at least one secondary coil, each coil positioned around a portion of a length of the tubular magnetic core.

公开(公告)号：US10882067B2

公开(公告)日：2021-01-05

申请号：US15928132

申请日：2018-03-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Marcin Cis ,  Piotr Sawicki

IPC: B05B15/65 ,  F15B13/043 ,  F16K31/04

Abstract: The present disclosure relates to a nozzle assembly for use in a servo valve. The nozzle assembly comprises three nozzle parts and a housing. The second part is coaxial with the first part and surrounds at least a first portion of the first part. The third part is coaxial with the first part, and a first portion of the third nozzle part surrounds a first portion of the second nozzle part, and a second portion of the third part is attached to a second portion of the first part. First and second nozzle parts are made of materials having approximately the same first coefficient of thermal expansion (TE1), and third part and housing are made of materials having approximately the same second coefficient of thermal expansion (TE2). TE1 is different from TE2. The interaction between the portions due to the differences in TE1 and TE2 allow the nozzle assembly to compensate for temperature fluctuations during and operation whilst remaining firmly held in position.