Accession Number : ADD010725

Title :   Electro-Pneumatic Hydraulic Control Systems.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : De Marco,M

Report Date : 12 Jul 1983

Pagination or Media Count : 12

Abstract : This report describes propulsion means of undersea vehicle comprises a pair of counter-rotating low speed impellers driven from a spider shaft rotating at relatively high speed. The reduction is accomplished by a variable speed reducing and torque transmitting device which allows infinite resolution for speed control including a zero speed setting while maintaining a constant high speed at the input spider shaft. Attitude of the vehicle is controlled by a plurality of regulated inlet ports and roll control is regulated by increasing the speed of one impeller and decreasing the speed of the other. The sea water utilized for the attitude is also used for propulsion. Control systems within the vehicle utilize and electro-pneumatic-hydraulic system complex.

Descriptors :   *Patents, *Hydraulic equipment, *Variable speed drives, Electropneumatic, Impellers, Counterrotation, Torpedo components, Low velocity, Underwater propulsion

Subject Categories : Hydraulic and Pneumatic Equipment
      Torpedoes

Distribution Statement : APPROVED FOR PUBLIC RELEASE