Decanter centrifuge having differential drive unit

Details Decanter centrifuge having differential drive unit Decanter centrifuge having differential drive unit

1981-05-12

1983-10-25

Jenkins, Robert W.

Imperforate bowl: centrifugal separators

Rotatable bowl

Including driven material-moving means therein

494 84, B04B 304, B04B 906

Patent

active

044116462

ABSTRACT:
A decanter centrifuge has a drum driven by a main driving motor via belts and a worm gear located in the drum so that it can rotate. The worm gear is driven by a hydraulic motor with a differential rate of rotation which rotates with the drum, thus providing a slip drive unit. A hydrostatic coupling is connected between the main drive motor and the belt drive of the drum. A pressure line of the pump of the hydrostatic coupling is connected hydraulically with the feed line of the hydraulic motor of the worm gear through a flow-control valve. With this arrangement, only a single pump, that is, the pump of the hydrostatic coupling is required to accelerate the drum and regulate the rate of rotation of the drum on the one hand, and simultaneously to feed the slip drive unit, on the other.

REFERENCES:
patent: 3734399 (1973-05-01), Oas
patent: 3896912 (1975-07-01), Cyphelly
patent: 3923241 (1975-12-01), Cyphelly
patent: 4073431 (1978-02-01), Jager
patent: 4113171 (1978-09-01), Cyphelly
patent: 4228949 (1980-10-01), Jackson
patent: 4298162 (1981-11-01), Hohne

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