Counterrotating power turbine

Details Counterrotating power turbine Counterrotating power turbine

1984-12-03

1986-11-11

Smith, Leonard E.

Fluid reaction surfaces (i.e., impellers)

Plural impellers having relative movement or independent...

Coaxial rotation

416128, 416130, 415 65, F01C 126

Patent

active

046219781

ABSTRACT:
An improved counterrotating power turbine is disclosed. The power turbine includes a support having an annular axial cross-section and forward and aft portions. The forward portion of the support has a diameter greater than the diameter of the aft portion. Also included are a first rotor and a second rotor. The first rotor is supported on the first portion of the support by first bearing means and extends to the aft portion forming a first interface therewith. The second rotor is supported on the first rotor by second bearing means and extends to the aft portion of the support forming a second interface therewith. In this manner, it is possible to have low diameter slip rings at the first and second interfaces while maintaining relative high diameters for the rotor bearing means.

REFERENCES:
patent: 3363419 (1968-01-01), Wilde

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