公开(公告)号：US20210190097A1

公开(公告)日：2021-06-24

申请号：US17195741

申请日：2021-03-09

Applicant: Hamilton Sundstrand Corporation

Inventor： Maciej BUJEWICZ ,  Marek JEDLINSKI

IPC: F15B13/04 ,  F16K5/02 ,  F16K5/04 ,  F16N21/06 ,  B25B7/14 ,  F15B21/041 ,  B01D29/05 ,  B25B27/06 ,  B25B27/20 ,  F15B13/043

Abstract: A plug for retaining a filter screen in a fluid port of a servovalve, comprises an annular body, the annular body comprising: opposed first and second axial end surfaces, a radially inner surface extending between the first and second axial end surfaces, a radially outer surface extending between the first and second axial end surfaces and at least one recess formed in the radially inner surface for receiving a tool for removing the plug from the port. A tool for removing the plug comprises a pair of handles pivotally mounted to one another about a pivot, each handle having a plug gripping portion extending therefrom beyond the pivot, each plug gripping portion comprising an outwardly projecting tooth for engaging in the recess of the plug when the plug gripping portions are moved apart by operation of the handles.

公开(公告)号：US20200166144A1

公开(公告)日：2020-05-28

申请号：US16691839

申请日：2019-11-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Maciej BUJEWICZ ,  Marek JEDLINSKI

IPC: F16K3/02 ,  B01D29/05 ,  B23P19/04

Abstract: A plug for retaining a filter screen in a fluid port of a servovalve, the plug comprises an annular body. The annular body comprises opposed first and second axial annular end surfaces. A radially inner surface extends between the first and second axial annular end surfaces and a radially outer surface extends between the first and second axial annular end surfaces. At least one recess is formed in the radially inner surface for receiving a tool for removing the plug from the port. A plurality of slots is formed in the first axial annular end surface and extends into the at least one recess for providing access for the tool to the at least one recess.

公开(公告)号：US20210332779A1

公开(公告)日：2021-10-28

申请号：US17239843

申请日：2021-04-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Marek JEDLINSKI ,  Marcin KORCZYNSKI

IPC: F02M37/34 ,  B01D35/147 ,  B01D36/00

Abstract: A fuel filter includes a manifold, a connector element, a filter bowl, a filter element, a shutoff valve, an inlet port, an inlet passage, an outlet port, an outlet passage and a relief valve in which the connector element is fixed to the manifold, and the filter bowl is reversibly fixed to the connector element, the filter bowl is adapted to reversibly receive the filter element and is so configured that when the filter element is located within the filter bowl and the filter bowl attached to the connection element the filter element divides the space defined by the connector element and filter bowl into an inlet filter chamber and an outlet filter chamber, the inlet port is incorporated in the manifold, and the inlet port and inlet filter chamber are in fluid communication via the inlet passage, the outlet port is incorporated in the manifold.

公开(公告)号：US20210299599A1

公开(公告)日：2021-09-30

申请号：US17210721

申请日：2021-03-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Marek JEDLINSKI ,  Marcin KORCZYNSKI

IPC: B01D35/157 ,  F02C7/232 ,  B01D35/147

Abstract: A fuel filter includes a manifold, a connector element, a filter bowl, a filter element, an inlet shutoff valve, an outlet shutoff valve, an inlet port, an inlet passage, an outlet port, an outlet passage and a relief valve in which the connector element is fixed to the manifold, and the filter bowl is reversibly fixed to the connector element, the connector element and the manifold define a chamber and the chamber is split into a second inlet chamber and a second outlet chamber by the relief valve. The filter bowl is adapted to reversibly receive the filter element and is so configured that when the filter element is located within the filter bowl and the filter bowl attached to the connection element, the filter element divides the space defined by the connector element and filter bowl into an inlet filter chamber and an outlet filter chamber.

公开(公告)号：US20240033666A1

公开(公告)日：2024-02-01

申请号：US18351669

申请日：2023-07-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Marek JEDLINSKI ,  Maciej BUJEWICZ

IPC: B01D35/157

CPC classification number: B01D35/1573 ,  B01D2201/16 ,  B01D2201/304

Abstract: A filter assembly includes a manifold having a fluid inlet and a fluid outlet, a filter housing having a filter medium provided therein. The filter medium defines an inner filter chamber and defining an outer filter chamber between the filter medium and the filter housing, the filter housing being removably attached to the manifold so as to provide a fluid flow path from the inlet into the inner filter chamber, through the filter medium into the outer chamber and out of the outlet. The filter assembly also has a valve assembly mounted inside the manifold. The valve assembly also includes a shut off valve piston and a shut off valve spring arranged in engagement with the valve piston to bias the valve piston into a first position and an adaptor ring located between the shut off valve piston and the filter housing and provided with an annular outlet seal.

公开(公告)号：US20220370936A1

公开(公告)日：2022-11-24

申请号：US17738071

申请日：2022-05-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Marek JEDLINSKI ,  Damian SLODCZYK

IPC: B01D35/147 ,  B01D29/35 ,  B01D35/30 ,  B01D29/96 ,  B01D35/02

Abstract: A filter assembly includes a manifold having a fluid inlet and a fluid outlet and a filter housing having a filter medium provided therein. The filter medium defines an inner filter chamber and defining an outer filter chamber between the filter medium and the filter housing. The filter housing is removably attached to the manifold so as to provide a fluid flow path from the inlet into the inner filter chamber, through the filter medium into the outer chamber and out of the outlet. The filter assembly also includes a valve assembly mounted inside the manifold, and a by-pass channel defined inside the manifold between the fluid inlet and the fluid outlet. The valve assembly comprises a valve spool and a valve spring arranged in engagement with the spool to bias the spool into a first position and to compress, in response to a pressure differential across the valve spool.

公开(公告)号：US20210299598A1

公开(公告)日：2021-09-30

申请号：US17210711

申请日：2021-03-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Marek JEDLINSKI ,  Marcin KORCZYNSKI

IPC: B01D35/147 ,  B01D35/157 ,  B01D35/30 ,  B01D29/35 ,  F02M37/48

Abstract: A fuel filter is provided which includes a manifold, a connector element, a filter bowl, a filter element, an inlet shutoff valve, an outlet shutoff valve, an inlet port, an inlet passage, an outlet port, an outlet passage and a relief valve in which the connector element is fixed to the manifold, and the filter bowl is reversibly fixed to the connector element. The filter bowl is adapted to reversibly receive the filter element and is so configured that when the filter element is located within the filter bowl and the filter bowl attached to the connection element, the filter element divides the space defined by the connector element and filter bowl into an inlet filter chamber and an outlet filter chamber and the inlet port is incorporated in the manifold, and the inlet port and inlet filter chamber are in fluid communication via the inlet passage.

公开(公告)号：US20210299597A1

公开(公告)日：2021-09-30

申请号：US17210692

申请日：2021-03-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Marek JEDLINSKI ,  Marcin KORCZYNSKI

IPC: B01D35/147 ,  B01D29/35 ,  B01D35/157 ,  B01D35/30 ,  F02M37/48

Abstract: A fuel filter is provided which comprises a manifold, a connector element, a filter bowl, a filter element, an inlet shutoff valve, an outlet shutoff valve, an inlet port, an inlet passage, an outlet port, an outlet passage and a relief valve in which the connector element is fixed to the manifold, and the filter bowl is reversibly fixed to the connector element. The filter bowl is adapted to reversibly receive the filter element and is so configured that when the filter element is located within the filter bowl and the filter bowl attached to the connection element the filter element divides the space defined by the connector element and filter bowl into an inlet filter chamber and an outlet filter chamber. The inlet port mouths through a surface of the manifold, and the inlet port and inlet filter chamber are in fluid communication via the inlet passage.

公开(公告)号：US20190331256A1

公开(公告)日：2019-10-31

申请号：US16381045

申请日：2019-04-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Maciej ZAK ,  Marek JEDLINSKI

IPC: F16K49/00 ,  H02K26/00 ,  F16K1/18 ,  F16K1/30

Abstract: There is provided an apparatus comprising a torque motor comprising a spring, armature, flapper assembly (“SAFA”), a body, wherein the spring, armature, flapper assembly is mounted onto the body, and a cap enclosing the spring, armature, flapper assembly. One or more cooling passages are provided within the body and are configured to receive cooling air and direct the cooling air onto the spring, armature, flapper assembly of the torque motor.

公开(公告)号：US20190309770A1

公开(公告)日：2019-10-10

申请号：US16379983

申请日：2019-04-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Maciej BUJEWICZ ,  Marek JEDLINSKI

IPC: F15B13/04 ,  F16N21/06 ,  F16K5/02 ,  F16K5/04

Abstract: A plug for retaining a filter screen in a fluid port of a servovalve, comprises an annular body, the annular body comprising: opposed first and second axial end surfaces, a radially inner surface extending between the first and second axial end surfaces, a radially outer surface extending between the first and second axial end surfaces and at least one recess formed in the radially inner surface for receiving a tool for removing the plug from the port. A tool for removing the plug comprises a pair of handles pivotally mounted to one another about a pivot, each handle having a plug gripping portion extending therefrom beyond the pivot, each plug gripping portion comprising an outwardly projecting tooth for engaging in the recess of the plug when the plug gripping portions are moved apart by operation of the handles.