Double helical flowmeter
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United States of America Patent
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May 16, 1995
Grant Date -
N/A
app pub date -
Jan 24, 1994
filing date -
Jan 24, 1994
priority date (Note) -
Expired
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Abstract
A high volume, low RPM, low noise, low wear and long life flowmeter uses inter-engaging double helical four-lobe rotors. The meter is made with ball bearings or bearingless. The double helical nature of the teeth provides no axial loads and no side loads or end loads, and uses true gear designs with very large pockets. A high contact ratio is provided with only four teeth, reducing and eliminating noise and pulsing output, increasing working volume and decreasing speed and wear.
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