Four-rotor type rotary piston engine

Details Four-rotor type rotary piston engine Four-rotor type rotary piston engine

1990-03-14

1990-11-27

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

74570, 29888012, 2988808, F01C 1100, F16C 312, B23P 1100

Patent

active

049732331

ABSTRACT:
A four-rotor type rotary piston engine including an eccentric shaft assembly composed of three elements; a main eccentric shaft defining the rotational axis of each rotor and first and second auxiliary eccentric shafts coupled to opposite end of the main eccentric shaft. The auxiliary eccentric shafts and the main eccentric shaft art fitted by tapered surfaces and have a small clearance therebetween in the radial direction to enable smooth coupling. The main eccentric shaft has two rotor eccentric journals for the second and the third cylinders. At first, the second and the third cylinders are installed. After that, the auxiliary eccentric shafts having rotor eccentric journals are coupled with the main eccentric shaft, and finally the first and the fourth cylinders are installed.

REFERENCES:
patent: 3240423 (1966-03-01), Jones
patent: 3279279 (1966-10-01), Takebayashi
patent: 3352290 (1967-11-01), Kuroda
patent: 4729726 (1988-03-01), Kurio et al.

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