Rotary expansible chamber devices – Intermittently accelerated and receding members rotate in... – Each a working member
Patent
1976-03-08
1978-02-07
Vrablik, John J.
Rotary expansible chamber devices
Intermittently accelerated and receding members rotate in...
Each a working member
418 33, F01C 100, F04C 1700, F02B 5514
Patent
active
040724476
ABSTRACT:
This rotary engine has two rotary piston carriers, with each of them carrying two pistons which circle a toroidal chamber. Crankshafts contacting those piston carriers offcenter program them in oppositely phased acceleration and deceleration, with two cycles of this superimposed upon one 360.degree. turn of the piston carriers.
Pinion gears are solidly secured to the crankshafts and run in (and mesh with) a fixed ring gear of twice the pinion diameter. That diameter relation precludes running the ordinary shaft through the toroid's central axis. As disclosed here a drum-like assembly is put together which can rotate in that space. Diametrically opposite the offcenter crankshaft is a tie rod. Both it and the crankshaft are secured to the piston carriers snugly against any looseness, and this drum-like assembly rotates continuously at and around the central axis. Thus this 4-piston rotary engine is able to and does employ a four-stroke cycle and gives four power strokes per revolution and without some of the disadvantages found in the rather few prior art instances of rotary engines meeting those conditions.
Two modifications of this first form are (2) a more elaborately balanced form that can put through more power has two crankshafts with their pinions staggered along the axis and meshing a double-track ring gear; and (3) a single crankpin crankshaft accelerating and decelerating one piston carrier while the other runs at a constant rate.
REFERENCES:
patent: 1303255 (1919-05-01), Carter
patent: 1452125 (1923-04-01), Pont
patent: 1665581 (1928-04-01), Dewy
patent: 1726461 (1929-08-01), Weed
patent: 1973397 (1934-09-01), Stromberg
patent: 2075654 (1937-03-01), Martin
patent: 3385272 (1968-05-01), Winogrodzki et al.
patent: 3396632 (1968-08-01), Leblanc
Dyke H. Gordon
Vrablik John J.
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