DISPOSITIF DE REFROIDISSEMENT PAR AIR D'UN MOTEUR ROTATIF A COMBUSTION

Disclosed herein is a rotary combustion engine comprising a plurality of cooling fins extending radially outwardly from a hollow housing in generally parallel relation to a rotor shaft rotatably journaled by end walls interconnected with the hollow housing, a fan driven by the rotor shaft, a shroud enclosing the fan and including an air inlet and an air outlet, wall means including a first portion engaging the radially outer ends of the cooling fins to provide a first plurality of cooling passages extending axially of the housing, and a second portion extending from the first portion and cooperating with the shroud to define a conduit extending from the shroud outlet to the first plurality of cooling passages, a second plurality of cooling passages extending arcuately along the outer surface of one of the end walls, a third plurality of cooling passages extending arcuately along the outer surface of the other of the end walls, and duct means independently communicating each of said second and third pluralities of cooling passages with said shroud outlet independently of each other and of the conduit.