Air cooled rotary combustion engine

Claim 1

AN AIR COOLED OUTER BODY STRUCTURE FOR A ROTARY COMBUSTION ENGINE HAVING A PLURALITY OF WORKING CHAMBERS WHICH TRAVEL AROUND THE OUTER BODY AXIS DURING OPERATION AND WHEREIN THE HEAT REJECTION FROM THE ENGINE WORKING FLUID IN SAID CHAMBERS IN NONUNIFORM; SAID OUTER BODY STRUCTURE COMPRISING A PERIPHERAL WALL HAVING A PLURALITY OF CIRCUMFERENTIALLY EXTENDING FINS PROJECTING OUTWARDLY FROM SAID OUTER BODY PERIPHERAL WALL FORMING AIR PASSAGES THEREBETWEEN, SAID FINS BEING DISPOSED IN A REGION OF RELATIVELY HIGH HEAT REJECTION TO SAID OUTER BODY FROM THE ENGINE WORKING FLUID WITH SAID FINS EXTENDING CIRCUMFERENTIALLY FROM ONE END OF SAID REGION TO THE OTHER, BAFFLE MEANS EXTENDING ACROSS THE OUTER ENDS OF SAID FINS TO CLOSE THE OUTER PORTIONS OF THE AIR PASSAGES BETWEEN SAID FINS, SAID BAFFLE MEANS BEING FORMED TO PROVIDE AN AIR ENTRANCE OPENING FOR PERMITTING COOLING AIR TO ENTER INTO THE INTER-FIN PASSAGES ADJACENT TO ONE END OF SAID REGION AND TO PROVIDE AN AIR DISCHARGE OPENING FOR PREMITTING THE COOLING AIR TO DISCHARGE FROM SAID INTER-FIN PASSAGES ADJACENT TO THE OTHER END OF SAID REGION, AND MEANS TO PASSAGES ADJACENT TO THE OTHER END OF SAID REGION, FIN PASSAGES IN A SECTION OF SAID REGION HAVING RELATIVELY HIGH HEAT REJECTION TO SAID OUTER BODY PERIPHERAL WALL SO THAT IN SAID SECTION THE HEIGHT OF SAID INTER-FIN PASSAGES PROGRESSIVELY DECREASES TO A MINIMUM SUBSTANTIALLY INTERMEDIATE OF THE UPSTREAM AND DOWNSTREAM PORTIONS THEREOF AND PROGRESSIVELY INCREASES AT THE DOWNSTREAM PORTION OF SAID SECTION.