Flow meter with helical toothed rotors having no pulsation and zero contact pressure
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United States of America Patent
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May 11, 1982
Grant Date -
N/A
app pub date -
Jul 2, 1979
filing date -
Jul 3, 1978
priority date (Note) -
Expired
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Abstract
This invention relates to a positive displacement flow meter with helical toothed rotors, in which respective tooth profiles are continuously contacted with each other in order not to cause any blockage of fluid between the respective tooth profile curves. The flow meter has a pair of helical toothed rotors which are rotatable each other with no pulsation and the tooth-to-tooth surface contact pressure is maintained zero. Each of the two rotors has the same profile and the same size. Further, a plurality of curved projections can be mounted on a tooth profile of each rotor.
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