Method and apparatus for detecting the onset of flooding of an u

Details Method and apparatus for detecting the onset of flooding of an u Method and apparatus for detecting the onset of flooding of an u

1995-04-13

1996-12-31

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Processes

Vibratory or magneto-strictive projecting

2391022, H03B 530, B05B 108

Patent

active

055885926

ABSTRACT:
Deleting the onset of flooding of a surface of an ultrasonic atomizer having an ultrasonic transducer with liquid to be atomized, in particular liquid fuel in connection with heaters, wherein the natural resonance frequency of the vibrating ultrasonic transducer is monitored for changes in frequency, and a flooding signal reporting a flooded condition is produced when a drop in resonance frequency over a previously detected resonance frequency is detected whose rate of decrease exceeds a set minimum threshold.

REFERENCES:
patent: 3400892 (1968-09-01), Ensminger
patent: 4275363 (1981-06-01), Mishiro et al.
patent: 4469974 (1984-09-01), Speranza
patent: 4642581 (1987-02-01), Erickson
patent: 4689515 (1987-08-01), Benndorf et al.
patent: 5113116 (1992-05-01), Wilson

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