Abstract:
A system and method for driving multiple camshafts in an internal combustion engine is disclosed, the multiple camshafts being driven with a gear based camshaft drive system including a plurality of camshaft driven gears and a pinion drive gear. Preferably, an intermediate drive gear is provided for rotating the camshaft driven gears in response to rotation of the pinion drive gear, the intermediate drive gear being meshed with the pinion gear and being bolted to one of the plurality of camshaft driven gears.
Abstract:
An internal combustion engine (300) for a vehicle, such as a motorcycle (20), includes a crankcase (380), two banks of cylinders (320a, 320b) projecting from the crankcase (380) in a V-configuration, a plurality of pushrods (364), and a plurality of camshafts (360a, 360b, 360c) supported by the crankcase (380). The two banks of cylinders (320a, 320b) include a first cylinder bank that projects from the crankcase (380) to a first cylinder head (340a), and a second cylinder bank that projects from the crankcase (380) to a second cylinder head (340b). The plurality of pushrods (364) extend between the crankcase (380) and the first and second cylinder heads (340a, 340b), and the plurality of camshafts include only the first, second and third camshafts (360a, 360b, 360c).
Abstract:
A compression release assembly is disclosed, the assembly including a camshaft rotatable about a camshaft axis, a trigger rotatable about a trigger axis substantially perpendicular to the camshaft axis, and a spring position between the trigger and the camshaft. Preferably, the trigger is rotated from an engagement position toward a disengagement position when a rotational velocity of the camshaft achieves a known value, and is rotated from the disengagement position toward the engagement position when the rotational velocity of the camshaft is below the known value.
Abstract:
A compression release assembly is disclosed, the assembly including a camshaft rotatable about a camshaft axis, a trigger rotatable about a trigger axis substantially perpendicular to the camshaft axis, and a spring position between the trigger and the camshaft. Preferably, the trigger is rotated from an engagement position toward a disengagement position when a rotational velocity of the camshaft achieves a known value, and is rotated from the disengagement position toward the engagement position when the rotational velocity of the camshaft is below the known value.
Abstract:
A compression release assembly is disclosed, the assembly including a camshaft rotatable about a camshaft axis, a trigger rotatable about a trigger axis substantially perpendicular to the camshaft axis, and a spring position between the trigger and the camshaft. Preferably, the trigger is rotated from an engagement position toward a disengagement position when a rotational velocity of the camshaft achieves a known value, and is rotated from the disengagement position toward the engagement position when the rotational velocity of the camshaft is below the known value.
Abstract:
An internal combustion engine (300) for a vehicle, such as a motorcycle (20), includes a crankcase (380), two banks of cylinders (320a, 320b) projecting from the crankcase (380) in a V-configuration, a plurality of pushrods (364), and a plurality of camshafts (360a, 360b, 360c) supported by the crankcase (380). The two banks of cylinders (320a, 320b) include a first cylinder bank that projects from the crankcase (380) to a first cylinder head (340a), and a second cylinder bank that projects from the crankcase (380) to a second cylinder head (340b). The plurality of pushrods (364) extend between the crankcase (380) and the first and second cylinder heads (340a, 340b), and the plurality of camshafts include only the first, second and third camshafts (360a, 360b, 360c).