Engine lubricating apparatus

Claim 1

A LUBRICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE COMPRISING; A CYLINDER BLOCK FORMING A PART OF THE ENGINE; AN OIL RESERVOIR SECURED TO AND CLOSING OFF THE UNDERSIDE OF THE CYLINDER BLOCK; A PUMP HOUSING CASTING HAVING A FIRST END WALL DIRECTED TOWARD AND SECURED TO THE SIDE WALL OF THE CYLINDER BLOCK; SAID PUMP HOUSING CASTING HAVING A SECOND END WALL DIRECTED AWAY FROM THE CYLINDER BLOCK; A PUMP COVER CASTING CLOSING OFF AND SECURED TO THE SECOND END WALL OF THE PUMP HOUSING CASTING; A SIDE WALL ON THE PUMP HOUSING CASTING DIRECTED TRANSVERSELY WITH REFERENCE TO END WALLS OF THE PUMP HOUSING CASTING; A SEPARABLE ADAPTER CASTING HAVING AN INNER END FACE ANCHORED TO AND CLOSING OFF THE SIDE WALL OF THE PUMP HOUSING CASTING AND AN OUTER END FACE AT THE OPPOSITE END OF SAID ADAPTER CASTING; A FILTERING DEVICE HAVING A CONTAINER WITH AN END FACE ANCHORED TO THE OUTER END FACE OF THE ADAPTER CASTING; AN OIL ROUTE COMMENCING FROM THE INTERIOR OF THE CYLINDER BLOCK AND LEADING THROUGH THE PUMP HOUSING CASTING TO THE PUMPING MECHANISM, THROUGH THE PUMP COVER CASTING, THEN THROUGH THE PUMP HOUSING CASTING TO THE ADAPTER CASTING, THEN THROUGH THE ADAPTER CASTING INTO THE FILTERING DEVICE, THEN RETURNING FROM THE FILTERING DEVICE THROUGH THE ADAPTER CASTING, THEN THROUGH THE PUMP HOUSING CASING AND BACK TO THE CYLINDER BLOCK.