Turning gear interlock

Details Turning gear interlock Turning gear interlock

1981-12-31

1984-03-20

Marcus, Stephen

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

By shaft speed or torque responsive means

60646, 251 94, 415122R, F01D 1512, F01D 2100

Patent

active

044378092

ABSTRACT:
Rotor turning gears for turbines selectively engage with and disengage from rotor ring gears to provide for rotation of the turbine rotor when it would otherwise cease rotation. This is to equalize the effect of thermal stresses on the rotor as it cools down from operating temperatures. The turning gear is positioned by a movable carriage and interlock. The interlock prevents inadvertent engagement of the turning gear and rotor; inadvertent steam admission to the turbine when the turning gear is engaged and assures gear mesh oil to the turning gear during turning gear engagement.

REFERENCES:
patent: 2466358 (1949-04-01), Besserdich et al.
patent: 2962859 (1960-12-01), Hodgson et al.
patent: 3441040 (1969-04-01), Gray
patent: 3919894 (1975-11-01), Keeter et al.
patent: 4083382 (1978-04-01), Khatti et al.
patent: 4193739 (1980-03-01), Lucey
patent: 4267738 (1981-05-01), Hausermann
patent: 4267740 (1981-05-01), Schwarz

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