Positive displacement flow meter with helical-toothed rotors

Details Positive displacement flow meter with helical-toothed rotors Positive displacement flow meter with helical-toothed rotors

1978-01-06

1980-09-23

Vrablik, John J.

Rotary expansible chamber devices

Working chamber surface expressed mathematically

418201, 73261, G01F 310, F01C 116

Patent

active

042240158

ABSTRACT:
The present invention relates to a positive displacement flow meter having a pair of rotors to be rotatably engaged with each other which are provided with tooth profile curves of a cycloid and of a trochoid.
Since the tooth profile of one rotor is equal to that of the other rotor, transmission of energy between the two rotors is uniform, and wear of teeth of the two rotors being reduced.

REFERENCES:
patent: 2701683 (1955-02-01), Whitfield
patent: 3414189 (1968-12-01), Persson

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