Direct drive for deep-well drilling

Details Direct drive for deep-well drilling Direct drive for deep-well drilling

1983-08-01

1984-12-04

Leppink, James A.

Boring or penetrating the earth

With below-ground tool drive prime mover

Fluid rotary type

418 48, 403355, F03B 1302, E21B 402

Patent

active

044858809

ABSTRACT:
A direct drive for deep-well drill bits on the Moineau displacement principle is provided with locking means detents (10, 11) which are disposed downstream of the working chambers (4) of rotor (3) and stator (2). Actuation of the locking means is effected by coupling throw-in members (13) introduced through the flushing passage from above. Passage through the working chambers and into the locking means detents groove (16, 20, 21) is rendered possible for the throw-in members on relative rotation of rotor and stator.

REFERENCES:
patent: 2167019 (1939-07-01), Yost
patent: 2795398 (1957-06-01), Ragland

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