Leakage path interconnection for single screw mechanisms

Details Leakage path interconnection for single screw mechanisms Leakage path interconnection for single screw mechanisms

1988-12-21

1990-07-17

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Non-parallel axis

418196, F01C 120, F01C 308

Patent

active

049418114

ABSTRACT:
The teeth of a gaterotor in a single screw mechanism has flanks in contact ith the mainrotor thread which are relieved only on diagonally opposite sides above and below the gaterotor sealing plane at the leading inner and trailing outer tooth edges. When properly arranged in a mechanism capable of having multiple teeth engaged in a single screw thread, the blowhole leakage paths at the mainrotor thread crest-gaterotor tooth root-housing interface are interconnected between opposite chambers which are at equal pressure. This eliminates blowhole leakage and removes the primary limitation on gaterotor thickness and strength.

REFERENCES:
patent: 711083 (1902-10-01), Taylor
patent: 1437464 (1922-12-01), Carroll
patent: 1654048 (1927-12-01), Myers
patent: 1723157 (1929-08-01), Guttinger
patent: 2994276 (1961-08-01), Matson
patent: 3232236 (1966-02-01), Karavias
patent: 3932077 (1976-01-01), Zimmern
patent: 4321022 (1982-03-01), Zimmern
patent: 4373881 (1983-02-01), Matsushita

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