Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1975-12-15
1977-05-03
Croyle, Carlton R.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
418 64, 123 845, F01C 102, F02B 5300
Patent
active
040211606
ABSTRACT:
An engine, pump or motor is disclosed of a type generally similar to the "Wankel" engine, except that the present invention is characterized by purely orbital motion of the piston to produce rotation of the output shaft. Preferably the shaft has two eccentric sections in radial alignment, the first eccentric axis being displaced from the main axis, one half the displacement of the second eccentric axis from the main axis. A pinion is rotatably mounted about the first eccentric axis. A fixed internal ring gear is fixed against rotation and mounted about the main axis so as to engage the pinion at a point in radial alignment with the two eccentric axes. An orbital ring gear is preferably identical to the fixed ring gear and rotatably mounted about the second eccentric axis so as to engage the pinion at a point on the pinion diametrically opposite the point of engagement of the pinion and the fixed ring gear. The piston is also rotatably mounted about the second eccentric axis and fixed to the orbital ring gear. The gearing means described will translate purely orbital motion of the piston into rotational motion of the shaft. Radially extending vanes attached to the piston are also disclosed as defining several fluid or combustion chambers, as is known in the art. Alternative embodiments of the gearing means are disclosed.
REFERENCES:
patent: 3787150 (1974-01-01), Sarich
patent: 3919980 (1975-11-01), Veatch
patent: 3923431 (1975-12-01), Abbey
patent: 3953159 (1976-04-01), Hunter
Croyle Carlton R.
Mathews H. Hume
Mathews J. Llewellyn
Smith Leonard
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