Thrust bearing arrangement for a rotary piston internal combustion engine having a vertical crankshaft

摘要

Disclosed herein is a rotary internal combustion engine comprising housing means defining, in series, first, second, third and fourth trochoid shaped rotor cavities in aligned relation to each other, a rotatably mounted crankshaft including, in series, first, second, third and fourth eccentric portions respectively extending through the first, second, third and fourth cavities, and with the first and fourth crankshaft eccentric portions aligned with respect to each other and with the second and third crankshaft eccentric portions aligned with respect to each other at an angular spacing of 180 DEG from the first and fourth crankshaft eccentric portions, together with first, second, third and fourth rotors respectively rotatably mounted on the first, second, third and fourth crankshaft portions and respectively rotatable in the first, second, third and fourth cavities so as to respectively provide first, second, third and fourth rotating chambers in which combustion takes place, gear means on the housing means and on the rotors for effecting relative rotation between the rotors and the crankshaft and between the crankshaft and the housing means in response to combustion in the chambers, and ignition means for simultaneously initiating combustion in the first and fourth chambers and for simultaneously initiating combustion in the second and third chambers after 180 DEG of crankshaft rotation subsequent to initiation of combustion in the first and fourth chambers.