Method and apparatus of detecting pumping surges on turbocompres

Details Method and apparatus of detecting pumping surges on turbocompres Method and apparatus of detecting pumping surges on turbocompres

1986-11-07

1988-06-07

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

Temperature or fluid force responsive member

415 1, 73116, 340966, F01D 1702

Patent

active

047493313

ABSTRACT:
To detect a surge in a turbocompressor, the temperature at the compressor intake, or the difference between temperatures measured at different distances from the compressor intake, is subjected to a differentiation or to an operation equivalent to differentiation, thereby determining the temperature change rate. A surge is indicated when the temperature change rate is above a specified value and possibly other plausibility criteria are met.

REFERENCES:
patent: 2696345 (1954-12-01), Hopper
patent: 3291146 (1966-12-01), Walker
patent: 4464720 (1984-08-01), Agarwal
patent: 4502833 (1985-03-01), Hibino et al.
patent: 4505150 (1985-03-01), Seymour et al.
patent: 4594050 (1986-06-01), Gaston
patent: 4612894 (1986-09-01), Satoh et al.

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