Patent ID: 7281603
Filing Date: 2007-10-16
Classification: F02B,Y10T

Abstract:
1. An all terrain vehicle comprising a frame, an engine compartment defined within the frame, an engine mounted within the engine compartment, the engine comprising a crankcase, a transversely extending crankshaft, a transmission connected to the crankshaft, the transmission comprising a drive pulley, a driven pulley and a drive belt connecting the drive pulley and the driven pulley, the driven pulley including a fixed half and a movable half, a spring adapted to bias the movable half toward the fixed half, a transmission primary shaft connected to the drive pulley and coaxial to the crankshaft, a transmission case connected to the crankcase, a mating surface between the crankcase and the transmission case, wherein a portion of the mating surfaces is positioned within a perimeter of the driven pulley, the mating surface defining a plane substantially perpendicular to an axis of the crankshaft, wherein the drive belt is disposed on a first side of the plane, and at least a portion of the spring is disposed on a second side of the plane, wherein the transmission case defines a channel sized and configured to accommodate at least a portion of the movable half of the driven pulley.