Multistage helical down-hole machine with frictional coupling of

Details Multistage helical down-hole machine with frictional coupling of Multistage helical down-hole machine with frictional coupling of

1984-02-09

1986-04-29

Vrablik, John J.

Rotary expansible chamber devices

Multistage

291564R, 29434, 403333, 403334, 403361, 418 48, F04C 200, B23P 1500

Patent

active

045854017

ABSTRACT:
A helical down-hole machine comprises a plurality of sections, each such section having a helical rotor and a helical stator arranged with a preselected eccentricity to form cavities of variable volume for the passage of fluid therethrough and positioned axially in series. The identical elements of these sections, rotors or stators, are rigidly interconnected. The rigid connection of at least one of these identical elements of said sections is detachable by frictionally jointing a projection provided at the end of one such element and a recess provided at the end of the adjacent element to be secured against relative angular and axial displacements in the process of rotation.

REFERENCES:
patent: 524033 (1894-08-01), Turner
patent: 1849510 (1932-03-01), Thomson
patent: 2600946 (1952-06-01), Voedisch
patent: 3912426 (1975-10-01), Tschirky
patent: 3999901 (1976-12-01), Tschirky
patent: 4011917 (1977-03-01), Tiraspolsky et al.

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