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    FLUID INJECTION SYSTEMS FOR FLUID LINE PURGING
    1.
    发明申请
    FLUID INJECTION SYSTEMS FOR FLUID LINE PURGING 有权

    公开(公告)号：US20210102515A1

    公开(公告)日：2021-04-08

    申请号：US16593324

    申请日：2019-10-04

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Ryan Susca ,  Steve Doerner

    IPC: F02M25/08

    Abstract: A fluid injection system can include a main flow line, a primary flow line connected to the main flow line, a primary flow valve disposed on the primary flow line and configured to selectively allow injectant flow to the primary flow line, a secondary flow line connected to the main flow line, and a secondary flow valve disposed on the secondary flow line and configured to selectively allow injectant flow to the secondary flow line. The system can include a primary purge branch in fluid communication with the primary flow line and connected to a purge gas line, a primary purge valve disposed in the primary purge branch between the primary flow line and the purge gas line, a secondary purge branch in fluid communication with the secondary flow line, and a secondary purge valve disposed between the purge gas line and both of the primary purge branch and the secondary purge branch.

    Hydraulic actuator including a multi-head piston for hydraulic gearing
    3.
    发明授权
    Hydraulic actuator including a multi-head piston for hydraulic gearing 有权

    公开(公告)号：US12203491B2

    公开(公告)日：2025-01-21

    申请号：US17726734

    申请日：2022-04-22

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Ryan Prescott Susca ,  Morgan O'Rorke ,  Steve Doerner

    IPC: F15B20/00 ,  B64C13/50 ,  F15B1/26 ,  F15B7/00 ,  F15B21/0427

    Abstract: A hydraulic actuator system of an aircraft includes a hydraulic actuator having a housing with a piston having a piston shaft with a piston head attached thereto and arranged within the housing. The piston head divides in internal volume of the housing into an extend cavity and a retract cavity and the extend cavity is configured to be connected to low pressure fluid source. The system also includes a pressure selector unit fluidly connected to the retract cavity and configured to be connected to the low pressure fluid source and to a high pressure fluid source. The unit include three solenoids with the first and second connected in parallel to the fluid sources and the third solenoid having a third solenoid first input connected to the first solenoid output, a third solenoid second input connected to the second solenoid output, and a third solenoid output connected to the retract cavity.

    FLUID INJECTION SYSTEMS HAVING FLUID LINE PURGING
    4.
    发明申请
    FLUID INJECTION SYSTEMS HAVING FLUID LINE PURGING 有权

    公开(公告)号：US20220010730A1

    公开(公告)日：2022-01-13

    申请号：US17486237

    申请日：2021-09-27

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Ryan Susca ,  Steve Doerner ,  Charles E. Reuter

    IPC: F02C7/232 ,  F23K5/18 ,  F02C7/22 ,  F23K5/14 ,  F23K5/06 ,  F02C7/228

    Abstract: A fluid injection system can include a main flow line, a primary flow line connected to the main flow line, and a primary flow valve disposed between the primary flow line and the main flow line and configured to allow injectant flow to the primary flow line from the main flow line in an open primary flow valve state, and to prevent injectant flow to the primary flow line from the main flow line in a closed primary flow valve state. The system can include a secondary flow line connected to the main flow line and a secondary flow valve disposed between the secondary flow line and the main flow line and configured to selectively allow injectant flow to the secondary flow line from the main flow line in an open secondary flow valve state, and to prevent injectant flow to the secondary flow line from the main flow line in a closed secondary flow valve state. The system can include a primary purge branch configured and a secondary purge branch configured to be in fluid communication with a purge gas line to receive a purge gas flow from the purge gas line.

    Fluid injection systems having fluid line purging
    5.
    发明授权
    Fluid injection systems having fluid line purging 有权

    公开(公告)号：US11156163B2

    公开(公告)日：2021-10-26

    申请号：US16593370

    申请日：2019-10-04

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Ryan Susca ,  Steve Doerner ,  Charles E. Reuter

    IPC: F02C7/232 ,  F02C7/22 ,  F23K5/14 ,  F23K5/06 ,  F23K5/18 ,  F02C7/228 ,  F02C9/30

    Abstract: A fluid injection system can include a main flow line, a primary flow line connected to the main flow line, and a primary flow valve disposed between the primary flow line and the main flow line and configured to allow injectant flow to the primary flow line from the main flow line in an open primary flow valve state, and to prevent injectant flow to the primary flow line from the main flow line in a closed primary flow valve state. The system can include a secondary flow line connected to the main flow line and a secondary flow valve disposed between the secondary flow line and the main flow line and configured to selectively allow injectant flow to the secondary flow line from the main flow line in an open secondary flow valve state, and to prevent injectant flow to the secondary flow line from the main flow line in a closed secondary flow valve state. The system can include a primary purge branch configured and a secondary purge branch configured to be in fluid communication with a purge gas line to receive a purge gas flow from the purge gas line.

    Fluid injection systems for fluid line purging
    8.
    发明授权
    Fluid injection systems for fluid line purging 有权

    公开(公告)号：US11680549B2

    公开(公告)日：2023-06-20

    申请号：US16593324

    申请日：2019-10-04

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Ryan Susca ,  Steve Doerner

    IPC: F02M25/08 ,  F02M59/46 ,  F02C7/232 ,  F02C7/22 ,  F02C7/30 ,  F23K5/18 ,  F02M59/00

    CPC classification number: F02M59/462 ,  F02C7/22 ,  F02C7/232 ,  F02C7/30 ,  F23K5/18 ,  F02M59/00 ,  F02M59/464 ,  Y10T137/4259

    Abstract: A fluid injection system can include a main flow line, a primary flow line connected to the main flow line, a primary flow valve disposed on the primary flow line and configured to selectively allow injectant flow to the primary flow line, a secondary flow line connected to the main flow line, and a secondary flow valve disposed on the secondary flow line and configured to selectively allow injectant flow to the secondary flow line. The system can include a primary purge branch in fluid communication with the primary flow line and connected to a purge gas line, a primary purge valve disposed in the primary purge branch between the primary flow line and the purge gas line, a secondary purge branch in fluid communication with the secondary flow line, and a secondary purge valve disposed between the purge gas line and both of the primary purge branch and the secondary purge branch.

    SERIAL METERING ORIFICES FOR A METERING VALVE
    9.
    发明申请
    SERIAL METERING ORIFICES FOR A METERING VALVE 有权

    公开(公告)号：US20230053617A1

    公开(公告)日：2023-02-23

    申请号：US17408183

    申请日：2021-08-20

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron F. Rickis ,  Lukasz Burek ,  Wayne S. Johnson, JR. ,  Steve Doerner

    IPC: F02C9/26 ,  F16K3/26

    Abstract: A metering valve has a main inlet port and a spool movable, and a housing outlet port in a housing. The spool has a metering inlet orifice selectively aligned with the main inlet port, and a metering outlet orifice selectively aligned with the main outlet port. The main inlet port communicates with the metering inlet orifice, and the outlet port communicates with the metering outlet orifice to each provide a metering orifice. The main outlet port communicates downstream to a minimum pressure valve. The minimum pressure valve has a piston biased to a closed position by a spring force, and a line downstream of the main outlet port acting against a face of the piston in opposition to the spring force to ensure a minimum pressure moving downstream past the piston to a use. A fuel system is also disclosed.

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