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    UNDER VANE VALVE PISTON STRUCTURE
    31.
    发明申请
    UNDER VANE VALVE PISTON STRUCTURE 审中-公开
    底板阀活塞结构

    公开(公告)号：US20160131266A1

    公开(公告)日：2016-05-12

    申请号：US14536801

    申请日：2014-11-10

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron F. Rickis ,  Francis P. Marocchini

    IPC: F16K3/02 ,  F04C2/32

    CPC classification number: F16K3/0218 ,  F01C21/0863 ,  F04C2/32 ,  F04C2/344 ,  F16K3/24

    Abstract: A valve has a sleeve with at least one outlet port in a radially outer surface. A piston is moveable within the sleeve along an axis. The piston has a lip on a radially outer portion extending forwardly to an axially forward most end and a recess radially inward from the lip with respect to an axis of the piston. A vane pump is also disclosed.

    Abstract translation: 阀具有在径向外表面中具有至少一个出口的套筒。 活塞可以沿着轴线在套筒内移动。 活塞在径向外侧部分上具有向前延伸到轴向最前端的唇缘和相对于活塞的轴线从唇部径向向内延伸的凹部。 还公开了一种叶片泵。

    FLOW DIVIDER VALVE WITH RELIEF MANAGEMENT VALVE
    33.
    发明申请
    FLOW DIVIDER VALVE WITH RELIEF MANAGEMENT VALVE 有权

    公开(公告)号：US20210301725A1

    公开(公告)日：2021-09-30

    申请号：US17219028

    申请日：2021-03-31

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Matej Rutar ,  Francis P. Marocchini ,  Aaron F. Rickis

    IPC: F02C7/232 ,  F02C9/34 ,  F01D21/14

    Abstract: A system includes a flow inlet conduit and a primary conduit that branches from the flow inlet conduit for delivering flow to a set of primary nozzles. An equalization bypass valve (EBV) connects between the flow inlet conduit and a secondary conduit for delivering flow to a set of secondary nozzles. The EBV is connected to an equalization conduit (EC) to apportion flow from the flow inlet conduit to the secondary conduit. A pressure equalization solenoid (PES) is connected to the EC to selectively connect at least one of a servo supply pressure (PFA) conduit or return pressure (PDF) conduit into fluid communication with the EC. A relief management valve (RMV) is connected in the PDF conduit.

    Drop-tight spool and sleeve for metering valve
    34.
    发明授权
    Drop-tight spool and sleeve for metering valve 有权

    公开(公告)号：US10428743B2

    公开(公告)日：2019-10-01

    申请号：US15451788

    申请日：2017-03-07

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Francis P. Marocchini ,  Aaron F. Rickis

    IPC: F16K31/06 ,  F02C9/26 ,  F16K3/26 ,  F16K3/24 ,  F02C7/232 ,  F16K1/44

    Abstract: A spool and sleeve assembly for a metering valve comprises a spool body defining a center axis, and a sleeve body having a bore that receives the spool body. The sleeve body includes at least one metering window open to the bore and is moveable between a metering position to control flow through the metering window and a shutoff position where flow is prevented from exiting an outlet end of the bore. A seal assembly reacts between the spool body and the sleeve body to provide at least a first sealing interface and a second sealing interface axially spaced from the first sealing interface when the spool body is in the shutoff position. A metering valve for a fuel system is also disclosed.

    Self-actuating and dual pivot flapper valve
    35.
    发明授权
    Self-actuating and dual pivot flapper valve 有权

    公开(公告)号：US10330019B2

    公开(公告)日：2019-06-25

    申请号：US14630688

    申请日：2015-02-25

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Francis P. Marocchini ,  Aaron F. Rickis ,  Robert Goodman

    IPC: F02C7/18 ,  F16K15/03 ,  F02C9/18 ,  F04D27/02 ,  F02C6/08

    Abstract: A bleed valve includes a valve body, a first flapper body movable relative to the valve body between an open position and a closed position, and a second flapper body movable relative to the valve body between an open position and a closed position. A resilient member biases the first and second flapper bodies to the open position to vent bleed air. The first and second flapper bodies move to the closed position when a pressure load across the first and second flapper bodies exceeds a biasing force of the resilient member. A gas turbine engine is also disclosed.

    Contamination resistant cartridge valve
    40.
    发明授权
    Contamination resistant cartridge valve 有权

    公开(公告)号：US09732864B2

    公开(公告)日：2017-08-15

    申请号：US14277478

    申请日：2014-05-14

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Francis P. Marocchini ,  Aaron F. Rickis

    IPC: F16K11/07 ,  F16K27/04 ,  F16K15/06

    CPC classification number: F16K11/0712 ,  F16K15/063 ,  F16K27/041 ,  Y10T137/8122 ,  Y10T137/86767

    Abstract: In one aspect, a pressure regulating valve assembly is provided. The valve assembly includes a housing having a fluid inlet and a fluid outlet, a sleeve positioned within the housing, and a spool at least partially positioned within the sleeve. The spool includes an outer surface having a shoulder, and the spool is configured to translate within the sleeve between a closed position and an open position. The valve assembly further includes a cap coupled to the sleeve and surrounding at least a portion of the spool, and the cap includes an inner surface with a flange extending therefrom. In the closed position the spool shoulder abuts against the cap flange to define a sealed metering edge. In the open position the spool shoulder is spaced from the cap flange to unseal the metering edge and define a metering window to facilitate fluid flow therethrough to the fluid outlet.

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