Gas driven gyroscope with extended rundown time

Details Gas driven gyroscope with extended rundown time Gas driven gyroscope with extended rundown time

1985-03-07

1988-02-16

Bonck, Rodney H.

Machine element or mechanism

Gyroscopes

With rotor drive

74 512, G01C 1912, G01C 1926

Patent

active

047247126

ABSTRACT:
A gas gyroscope 11 is provided with an aspirator pump 71 in order to evacuate gas from the main chamber 19 of the gyroscope 11. The evacuation of gas reduces windage and other air friction encountered by the gyroscope's rotor 21 and thereby extends the rundown time of the gyroscope. The aspirator 71 may be energized by a dedicated compressed gas source such as a compressed gas chamber 91. Alternatively, the aspirator 71 may be provided with ram air or bleed perpellant gases.

REFERENCES:
patent: 2080490 (1937-05-01), Kollsman
patent: 2219243 (1940-10-01), Kollsman
patent: 2729106 (1956-01-01), Mathiesen
patent: 3263507 (1966-08-01), Appleton
patent: 3393569 (1968-07-01), Lief
patent: 3982441 (1976-09-01), Widner
patent: 3985034 (1976-10-01), Widner
patent: 4271709 (1981-06-01), Feldman

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