Fluid cooled housing wall for internal combustion engines

Claim 1

A FLUID COOLED HOUSING FOR AN ENGINE OF THE ROTARY COMBUSTION TYPE HAVING A MAIN SHELL FORMING A CAVITY WITH OPPOSITE SIDE WALLS ENCLOSING THE CAVITY AND A CENTRALLY POSITIONED OPERATING HAVING A HOT REGION EXTENDWALLS, THE ENGINE IN OPERTION HAVING A HOT REGION EXTENDING BETWEEN PERIPHERAL LIMITS ALONG THE SHELL AND OVER A MAJOR PART OF EACH SIDE WALL AREA AND A COLD REGION EXTENDING OVER THE REMAINING AREA, ONE SIDE WALL COMPRISING TWO COMPLEMENTARY PARTS INCLUDING A FIRST PART THAT ENCLOSES THE CORRESPONDING SIDE OF THE SHELL AND A SECOND PART OVERLYING SAID FIRST PART IN THE HOT REGION AREA ONLY, SAID FIRST PART HAVING APLURALITY OF SPACED RIBS EXTENDING TRANSVERSELY THEREOF AND ABUTTING AN ADJOINING PLANAR SURFACE OF SAID SECOND PART TO FORM COOLING CHANNELS EXTENDING IN PARALLEL BETWEEN THE LIMITS OF SAID HOT REGION, SAID SECOND PART HAVING A BEARING SUPPORT FOR MOUNTING SAID SHAFT.