Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1988-06-24
1990-08-07
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 12, 244223, 744248R, H02K 706, G05G 100
Patent
active
049470701
ABSTRACT:
Control apparatus of the kind disclosed in UK patent specification Nos. 2,073,887 and 2,114,717, i.e. in which a movable operating member, arranged to control associated apparatus such as an aircraft engine, is coupled to an electric stepper motor, the motor being energizable to move the operating member and/or to generate a `feel` resistance to, or detents in, the manual movement of the operating member, the apparatus including a ball-screw assembly comprising a lead-screw and ball-nut, one of which is connected to the operating member and, with the operating member, is linearly movable with respect to the other, the stepper motor being coupled to the ball-screw assembly so that rotation of the motor rotor produces, or is produced by, relative rotation of the lead-screw and ball-nut. The apparatus can be constrcted as a retrofit unit for being installed in an existing control system including a manual lever or the like coupled to say an aircraft engine so as to provide an automatic operating mode and/or feel force generation for the existing system.
REFERENCES:
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patent: 3660704 (1972-05-01), Paine
patent: 3824420 (1974-07-01), Stegeman et al.
patent: 4110649 (1970-08-01), Mas
patent: 4438662 (1984-03-01), Walton et al.
Hill Grayham
Tittler Philip
British Aerospace Public Limited Company
Jones Judson H.
Salce Patrick R.
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