Rotary positive displacement motor

Details Rotary positive displacement motor Rotary positive displacement motor

1982-07-29

1984-12-11

Koczo, Michael

Internal-combustion engines

Rotary

With compression volume means in uninterrupted communication...

418 9, F02G 300

Patent

active

044871767

ABSTRACT:
A positive displacement rotary compound chamber motor comprises a piston rotor and a barrier rotor rotating cooperatively in a ported housing. The piston rotor has a compound piston which during rotation sweeps out a compound working chamber. The barrier rotor has a small piston which sweeps out a high pressure (HP) chamber. A flange on the piston rotor is the barrier for the HP chamber. All pistons mesh with recesses in the rotor assemblies. During operation, the HP chamber is filled with HP gas, which then expands in the compound chamber. A compound piston larger than the small piston achieves a high expansion ratio. A leakage path from the HP chamber to exhaust is blocked by the addition of an intermediate piston and its meshing intermediate recess.

REFERENCES:
patent: Re29627 (1978-05-01), Weatherston
patent: 715221 (1902-12-01), Warren
patent: 1164546 (1915-12-01), Neuland
patent: 2485687 (1949-10-01), Bailey
patent: 2804260 (1957-08-01), Nilsson et al.
patent: 3310043 (1967-03-01), Gamage
patent: 3481532 (1969-12-01), Fraser
patent: 3518975 (1970-07-01), Schmidt
patent: 3693601 (1972-09-01), Sauder
patent: 3863610 (1975-02-01), Spinnett

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