Control method and apparatus for fluid delivery in a rotary dril

Details Control method and apparatus for fluid delivery in a rotary dril Control method and apparatus for fluid delivery in a rotary dril

1982-05-10

1984-12-25

Leppink, James A.

Boring or penetrating the earth

Processes

Boring with specific fluid

175323, 175324, E21B 2100

Patent

active

044897936

ABSTRACT:
The apparatus comprises a cylindrical casing or housing with an interior passageway in which is mounted a fluid divider comprising three air divider legs each of which is a tapered plate formed with a concave cavity or air scoop with curved upper edges that are joined together in the center so that the legs diverge downwardly and outwardly in the drill string passageway of the cylindrical housing. The legs support a divider hood dome on which is mounted three separate curved plates defining three air channels. The fluid is directed into the concave scoops then into channels that lead to the outside of the housing in an upwardly direction. Fluid also spills over the air divider scoops and travels onto the bit, cooling the bit and chip removal from around the rollers.

REFERENCES:
patent: 762808 (1904-06-01), Cushing et al.
patent: 2920872 (1960-01-01), Baur et al.
patent: 3094175 (1963-06-01), Jackson
patent: 3924695 (1975-12-01), Kennedy
patent: 4245710 (1981-01-01), Dolezal et al.

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