Rotary kinetic fluid motors or pumps – With control means responsive to non-cyclic condition... – Temperature or fluid force responsive member
Patent
1984-05-14
1986-06-10
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
With control means responsive to non-cyclic condition...
Temperature or fluid force responsive member
415118, 417 32, 417 63, 417292, 374 10, 374144, 36443102, F01D 2112, F04B 4900, G01K 1302
Patent
active
045940517
ABSTRACT:
A surge detection system for a compressor having a gas inlet and a gas outlet and experiencing rapid temperature changes in said gas inlet during surges, said detector comprising first and second thermocouples having different temperature response times, Tf and Ts respectively, and producing an electrical output proportional to said rapid temperature change occurring during a surge, means for mounting said first and second thermocouples in said compressor gas inlet such that both thermocouples are subject to the same temperature changes, means for electrically coupling said thermocouples to algebraically sum said electrical outputs, Tf-Ts to represent the rapid change in temperature occurring between said thermocouples, and means coupled to said thermocouples for converting said algebraically summed outputs, Tf-Ts, to control signals representing the number, intensity and duration of said surges.
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Dresser Industries, Inc., "Surge Detection System", Dwgs. 466--745-601 and 466-745 (1979).
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Dresser Industries, Inc., "Surge Detector, Axial Flow Compressor", Dwgs. 470--464-601; 470-464 (1983).
GHH, "Description of GHH Surge Limiter" (1974).
Dresser Industries Inc.
Garrett Robert E.
Pitko Joseph M.
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