Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Patent
1992-02-21
1993-10-05
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Impeller rotation speed responsive
416152, 416155, 416160, 416162, F01D 702
Patent
active
052499243
ABSTRACT:
The present invention relates to a ram air turbine which is preferably used in conjunction with a refueling pod on an aircraft for purposes of operating a fuel pump and/or reeling mechanism for paying in and paying out a fuel line. The turbine generally comprises a rotatable housing having a main turbine output shaft disposed therein and rigidly connect thereto. A plurality of variable pitch turbine blades extend outwardly from and are cooperatively engaged to the housing such that rotation of the turbine blades causes simultaneous rotation of the housing and output shaft. Means are provided within the housing for establishing a preset reference rotational speed for the output shaft. Additionally, a control means cooperatively engaged between the turbine blades and the reference means is provided for adjusting the pitch of the turbine blades in response to a difference in the rotational speed of the output shaft and the preset reference rotational speed. The ram air turbine further includes both electrical and mechanical braking devices for changing the pitch of the turbine blades when the rotational speed of the output shaft exceeds a pre-determined maximum.
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HDUC Component Set-brochure-4 pages.
MK 32 2800 Refuel POD-brochure-3 pages.
B-2 Stealth bomber-photograph-Associated Press.
Lee Michael S.
Look Edward K.
Southwest Aerospace Corporation
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