Invention Grant
- Patent Title: Aircraft hydraulic system with a dual spool valve and methods of use
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Application No.: US15952641Application Date: 2018-04-13
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Publication No.: US10947997B2Publication Date: 2021-03-16
- Inventor: Michael Thomas Fox , Eric Anton Howell , Jeffrey M. Roach
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Coats & Bennett, PLLC
- Main IPC: F15B13/04
- IPC: F15B13/04 ; B64C13/40 ; F15B11/08 ; F15B19/00

Abstract:
A dual spool valve and methods of controlling hydraulic fluid that is moved to a hydraulic actuator of an aircraft. The dual spool valve may include ports to receive and discharge hydraulic fluid. The dual spool valve may also include first and second valve sections that are selectively positionable to control the flow of hydraulic fluid into and out of the actuator. One position provides for hydraulic fluid to move through closure lines. Method of controlling the dual spool valve may provide for selectively positioning the valve sections to control the flow of hydraulic fluid, and to position the valve sections to move hydraulic fluid through a closure line during certain circumstances.
Public/Granted literature
- US20190316607A1 Aircraft Hydraulic System With A Dual Spool Valve And Methods Of Use Public/Granted day:2019-10-17
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