Fluid conduit for use with hydraulic actuator

Details Fluid conduit for use with hydraulic actuator Fluid conduit for use with hydraulic actuator

2005-03-08

2005-03-08

Carone, Michael J. (Department: 3641)

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

C244S017270, C244S060000, C414S918000, C901S028000

Reexamination Certificate

active

06863239

ABSTRACT:
A fluid conduit is provided for use in a hydraulic actuating system for controlling an instrumentality disposed on a rotating portion of a machine. The fluid conduit transports pressurized fluid between a fluid source disposed on a non-rotating portion of the machine and the instrumentality and comprises a rigid tubular member formed in the shape of a helix having at least about 2 revolutions and a non-constant pitch length. The ends of the tube are adapted to be sealingly connected between the fluid source and the instrumentality. The fluid conduit is used, for example, in an apparatus and system for controlling a hydraulic actuator mounted on a rotating blade.

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