Bottom hole motor for driving rock-breaking tool

Details Bottom hole motor for driving rock-breaking tool Bottom hole motor for driving rock-breaking tool

1984-06-18

1985-05-21

Novosad, Stephen J.

Boring or penetrating the earth

With below-ground tool drive prime mover

Fluid rotary type

418 48, 384454, E21B 402

Patent

active

045180490

ABSTRACT:
A bottom hole motor for driving a rock-breaking tool comprises a motor unit kinematically coupled with a spindle unit. The spindle unit has a housing inside which extends a shaft connected with the rock-breaking tool and mounted in the housing with the aid of radial bearings and rings and races, said rings and races arranged coaxial with the shaft and designed to retain rolling bodies located between the rings, races and the shaft. The shaft has toroidal grooves which are in immediate contact with rolling bodies.
This invention can be used for drilling and repair of oil, gas and exploratory wells.

REFERENCES:
patent: 2167019 (1939-07-01), Yost
patent: 2207187 (1940-07-01), Zublin
patent: 2898087 (1959-08-01), Clark
patent: 3112801 (1963-12-01), Clark et al.
patent: 3260318 (1966-07-01), Neilson et al.
patent: 3356338 (1967-12-01), Ioanesyan et al.
patent: 3879094 (1975-04-01), Tschirky et al.
patent: 3930749 (1976-01-01), Gusman et al.
patent: 4170441 (1979-10-01), Trzeciak
patent: 4232751 (1980-11-01), Trzeciak

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