Apparatus for preventing a turbine from exceeding revolution spe

Details Apparatus for preventing a turbine from exceeding revolution spe Apparatus for preventing a turbine from exceeding revolution spe

1992-03-16

1993-08-10

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

With testing means for speed control

415 30, 36443102, 364507, 364508, 364565, G01M 1500, F01D 2102

Patent

active

052343154

ABSTRACT:
An apparatus comprises a first rotational speed detecting device provided on a stub shaft at a position closer to a turbine than a pump, a second revolution speed detecting device provided at the other end of the stub shaft, a comparator for continuously comparing values detected by these first and second rotational speed detecting devices, and a device for tripping the turbine when a difference is determined between the values compared by the comparator.

REFERENCES:
patent: 4303369 (1981-12-01), Hisano et al.
patent: 4454754 (1984-06-01), Zagranski et al.
patent: 4984173 (1991-01-01), Imam et al.
patent: 5038616 (1991-08-01), Schneider et al.
Japanese Patent Unexamined Publication No. 57-113912.

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