Expansible chamber devices – Rotating cylinder – Fluid conduit coaxial with axis of rotation
Patent
1986-11-26
1989-09-12
Garrett, Robert E.
Expansible chamber devices
Rotating cylinder
Fluid conduit coaxial with axis of rotation
92117R, 92117A, 92121, 244102R, F01C 900, F01B 1300
Patent
active
048649171
ABSTRACT:
A one moving part, bi-directional rotary displacement mechanism for conveying rotational movement about an axis to movable members in flight vehicles. In consists of an enclosure having bi-directional rotation capability, encapsulating a vane with bi-directional ducts venting from its load bearing surfaces. The vane is affixed to a bi-directionally ducted shaft, having bi-direcitonal rotation capability, extending through the center and outside of the enclosure. A conically shaped, sealed, positive stop, with load bearing surfaces, eminating from the inside radius of the housing, points toward the horizontal axis, supports the shaft and facilitates axial rotation. The vane has a radius concentric with the inside radius of the enclosure and allows sealed bi-directional rotary movement between the two surfaces. Two sealed cavities exist between the load bearing surfaces of the vane and the positive stop. Pressure to and from the cavities flows through the joined vane and shaft ducting. Ducted pressure filling one cavity and coupled with the second cavity simultaneously venting its pressure produces rotary movement.
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Garrett Robert E.
Williamson Mark A.
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