中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

39 records (took 0.015 seconds)

    COMBINED HIGH PRESSURE RELIEF AND BYPASS VALVES
    1.
    发明申请
    COMBINED HIGH PRESSURE RELIEF AND BYPASS VALVES 有权

    公开(公告)号：US20250027491A1

    公开(公告)日：2025-01-23

    申请号：US18225102

    申请日：2023-07-21

    Applicant: Hamilton Sundstrand Corporation

    Inventor： August M. Coretto ,  Ryan Prescott Susca

    IPC: F04B49/08 ,  F16K31/44

    Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. The system includes a relief valve (RV) having a control pressure port and an RV inlet port in fluid communication with the outlet line and an RV outlet in fluid communication with a bypass line. The system includes an actuator operatively connected to the control pressure port of the RV to change function of the RV between a first function and a second function. The first function is a high pressure relief valve function and the second function is as a wind milling bypass function.

    INLINE PNEUMATIC VALVE WITH INTERNAL BUSHING
    2.
    发明申请
    INLINE PNEUMATIC VALVE WITH INTERNAL BUSHING 有权

    公开(公告)号：US20230126388A1

    公开(公告)日：2023-04-27

    申请号：US17508485

    申请日：2021-10-22

    Applicant: Hamilton Sundstrand Corporation

    Inventor： August M. Coretto ,  Scott W. Simpson ,  Donald E. Army ,  Peter J. Dowd ,  David J. Zawilinski

    IPC: F16K1/12 ,  F04D27/02

    Abstract: An inline valve includes a sliding piston having a radially outer stop portion with a forward end. A radially inner sliding portion is connected to the radially outer stop portion by an arm. A housing includes an outer housing body surrounding the piston. The housing has a stop surface selectively in contact with the forward end of the radially outer stop portion of the piston to block flow for a housing inlet to a housing outlet. The radially inner sliding portion slides on a support tube. At least a portion of the radially inner sliding portion is formed of a first material having better wear resistance than a second material forming the outer stop portion of the piston. The second material has a greater resistance to high temperature and pressure than the first material. A vent valve for a compressor is also disclosed.

    Inline pneumatic valve with internal bushing
    6.
    发明授权
    Inline pneumatic valve with internal bushing 有权

    公开(公告)号：US11982358B2

    公开(公告)日：2024-05-14

    申请号：US17508485

    申请日：2021-10-22

    Applicant: Hamilton Sundstrand Corporation

    Inventor： August M. Coretto ,  Scott W. Simpson ,  Donald E. Army ,  Peter J. Dowd ,  David J. Zawilinski

    IPC: F16K1/12 ,  F04D27/02

    CPC classification number: F16K1/126 ,  F04D27/0215 ,  F04D27/023

    Abstract: An inline valve includes a sliding piston having a radially outer stop portion with a forward end. A radially inner sliding portion is connected to the radially outer stop portion by an arm. A housing includes an outer housing body surrounding the piston. The housing has a stop surface selectively in contact with the forward end of the radially outer stop portion of the piston to block flow for a housing inlet to a housing outlet. The radially inner sliding portion slides on a support tube. At least a portion of the radially inner sliding portion is formed of a first material having better wear resistance than a second material forming the outer stop portion of the piston. The second material has a greater resistance to high temperature and pressure than the first material. A vent valve for a compressor is also disclosed.

    Pressure actuated switching valve
    7.
    发明授权
    Pressure actuated switching valve 有权

    公开(公告)号：US11906063B2

    公开(公告)日：2024-02-20

    申请号：US17581038

    申请日：2022-01-21

    Applicant: Hamilton Sundstrand Corporation

    Inventor： August M. Coretto ,  David J. Zawilinski ,  Scott W. Simpson

    IPC: F16K15/06 ,  F16K27/02

    CPC classification number: F16K27/0209 ,  F16K15/063

    Abstract: A pressure actuated switching valve includes a first valve chamber including a first chamber portion. The first chamber portion has a first inner diameter, a second chamber portion having a second inner diameter that is greater than the first inner diameter, a third chamber portion having a third inner diameter that is greater than the first inner diameter, a fourth chamber portion having a fourth inner diameter that is greater than first inner diameter, and a valve member. The valve member includes a first section having a first outer diameter that is greater than the first inner diameter. A second section of the valve member has a second outer diameter that is closely matched to the third inner diameter. A third section of the valve member is arranged has a third outer diameter that is greater than the first outer diameter.

    FLOW DIVIDER VALVES WITH TRANSIENT PRESSURE LIMITING
    8.
    发明申请
    FLOW DIVIDER VALVES WITH TRANSIENT PRESSURE LIMITING 有权

    公开(公告)号：US20210301724A1

    公开(公告)日：2021-09-30

    申请号：US17217659

    申请日：2021-03-30

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Charles E. Reuter ,  Aaron F. Rickis ,  Francis P. Marocchini ,  Matej Rutar ,  August M. Coretto ,  Sachin Ramprashad

    IPC: F02C7/232 ,  G05D16/20 ,  F02C7/22 ,  G05D7/01

    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). A pressure equalization solenoid is connected to the EC to selectively connect a servo supply pressure conduit and/or a return pressure (PDF) conduit into fluid communication with the EC. An EBV rate limiting orifice (RLO) is connected in the PDF conduit. A bypass conduit branches from the PDF conduit on a first side of the EBV RLO and reconnects to the PDF conduit on a second side of the EBV RLO. An orifice bypass valve (OBV) is connected to the bypass conduit and acts to selectively bypass the EBV RLO.

    Transfer valves
    9.
    发明授权
    Transfer valves 有权

    公开(公告)号：US10711903B2

    公开(公告)日：2020-07-14

    申请号：US15617480

    申请日：2017-06-08

    Applicant: Hamilton Sundstrand Corporation

    Inventor： August M. Coretto ,  Aaron F. Rickis ,  Francis P. Marocchini ,  Glenn Gradischer ,  Richard H. Bostiga ,  Ryan Susca

    IPC: F16K11/07 ,  F16K3/316 ,  B64D37/00 ,  F15B13/04

    Abstract: A transfer valve includes a spool comprising a first circumferential flow channel at a first axial position of the spool and a second circumferential flow channel at a second axial position of the spool. The first circumferential flow channel and the second circumferential flow channel have different circumferential positions and are defined only partially circumferentially, and a sleeve disposed over the spool. The sleeve includes at least three flow windows defined through the sleeve at an axial position of the sleeve, each flow window having different circumferential positions on the sleeve. The spool is configured to translate within the sleeve between a first position and a second position. The first circumferential flow channel of the spool is configured to fluidly connect a first plurality of the at least three windows in the first position, and the second circumferential flow channel is configured to connect a second plurality of the at least three windows in the second position, wherein the first plurality of windows is different by at least one window from the second plurality of windows.

Patent Agency Ranking