Patent ID: 7540267
Filing Date: 2009-06-02
Classification: F01L,Y10T

Abstract:
1. An engine comprising: a crankshaft; a crankshaft pulley attached to the crankshaft and configured to rotate about a crankshaft axis; a piston cylinder; a piston attached to the crankshaft and disposed at least partially within the piston cylinder; a valve configured for selectively facilitating passage of fluid with respect to the piston cylinder; a camshaft comprising: a camshaft pulley attached to the camshaft and configured to rotate about the first axis; a first deflection member; a second deflection member; a flexible transmitter routed sequentially over the camshaft pulley, the first deflection member, the crankshaft pulley and the second deflection member such that rotation of the crankshaft correspondingly rotates the camshaft pulley to facilitate a phase relationship between the camshaft pulley and the crankshaft pulley; and a first deflection actuator engaged with the first deflection member and configured to selectively adjust the relative distance between the first deflection member and the crankshaft axis to facilitate variation in the phase relationship.