Fluid reaction surfaces (i.e. – impellers) – With measuring – testing – signalling or inspection means
Patent
1991-05-13
1993-05-18
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With measuring, testing, signalling or inspection means
416147, 416170R, 25023113, 25023116, 32420718, 32420719, 32420725, 32420722, 34087025, 34087029, 34087031, F01D 124
Patent
active
052115399
ABSTRACT:
Apparatus indicates changes in blade pitch of variable pitch blades by detecting relative displacements of first and second members of a blade pitch actuator. The members are selectively displaced to change the pitch of the blades. The apparatus includes sensors which provide output signals to a microprocessor, which determines displacement of each member with respect to a frame of reference. The microprocessor takes the difference between the displacements of the two members to determine the relative displacement, which is indicative of a change in blade pitch.
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Allied-Signal Inc.
Gortler Hugh P.
Look Edward K.
Mattingly Todd
Walsh Robert A.
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