Internal combustion engine with plate-mounted cam drive system
AssigneeS & S Cycle, Inc.
InventorsGeoffrey Burgess, Roy Meyer, Scott Sjovall, Jeffrey Bailey, Dan Kinsey
Life of this patent
Estimating the term…
Abstract
An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of pushrods, and a plurality of camshafts supported by the crankcase. The two banks of cylinders include a first cylinder bank that projects from the crankcase to a first cylinder head, and a second cylinder bank that projects from the crankcase to a second cylinder head. The plurality of intake and exhaust valve pushrods extend between the crankcase and the first and second cylinder heads, driven by one intake camshaft and two exhaust camshafts.
Claims18
An internal combustion engine comprising:
- at least two cylinders;
- a piston in each of the cylinders;
- a crankshaft for moving the pistons;
- a crankcase containing the crankshaft;
- three camshafts;
- a cam chest intermediate plate supporting the camshafts;
- and
- a drive system for rotating the camshafts including a camshaft cogwheel on each of the camshafts, a pinion cogwheel on the crankshaft, and at least one timing drive component driven by the pinion cogwheel and driving the camshaft cogwheels.
An internal combustion engine comprising:
- at least two cylinders each defining an associated longitudinal direction and combining to define a V-shape;
- a piston in each of the cylinders;
- a crankshaft for moving the pistons;
- a crankcase containing the crankshaft;
- three camshafts;
- a cam chest intermediate plate supporting the three camshafts;
- and
- a valve train system including tappets and pushrods engaging the three camshafts, rocker arms engaging the pushrods, and intake and exhaust valves engaging the rocker arms, the intake and exhaust valves being operably connected to an associated one of the at least two cylinders;
- the pushrods extending in a direction parallel to the longitudinal direction of the associated cylinder;
- and a drive system driven by the crankshaft for rotating the three camshafts.
In an internal combustion engine having cylinders, pistons, a crankshaft for moving the pistons, and camshafts for moving valves controlling fluid flow into and out of the cylinders, an improvement comprising:
- the camshafts includes three camshafts;
- and
- a cam chest intermediate plate supporting the camshafts;
- the intermediate plate being attached to a camshaft portion of the engine.
Dependencies are inferred from the claim text.