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US 8,616,185 B2Granted
Supercharged engine
AssigneeBRP-Powertrain GmbH & Co. KG
InventorsJohann Wilflinger, Markus Hochmayr, Karl Lagler, Karl Glinsner
Life of this patent
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Abstract
A supercharged internal combustion engine is disclosed which includes a supercharger operatively connected to the crankshaft via a clutch supported by an intermediate shaft such that torque variations are partially absorbed by the clutch.
Claims13
A supercharged internal combustion engine, comprising:
- a crankcase having a crankshaft rotatably mounted therein;
- a cylinder block connected to the crankcase;
- a cylinder head connected to the cylinder block wherein the cylinder block and the cylinder head form at least one combustion chamber;
- at least one air intake passageway operatively coupled to the combustion chambers;
- an air intake manifold connected to the cylinder head and operatively connected to the at least one air intake passageway;
- a supercharger for boosting air to the air intake manifold, the supercharger having a driven shaft operatively connected to the crankshaft via a friction clutch supported by an intermediate shaft;
- and
- an electric starter having a drive gear,
- the intermediate shaft comprising a reduction gear operatively connected to the starter drive gear wherein in a starting operation, the electric starter rotates the crankshaft via the reduction gear of the intermediate shaft.
6 more elements
A personal watercraft, comprising:
- a hull;
- a deck disposed on the hull;
- an engine compartment defined between the hull and the deck;
- and
- a supercharged internal combustion engine comprising:
- a crankcase having a crankshaft rotatably mounted therein;
- a cylinder block connected to the crankcase;
- a cylinder head connected to the cylinder block wherein the cylinder block and the cylinder head form at least one combustion chamber;
- at least one air intake passageway operatively coupled to the combustion chambers;
- an air intake manifold connected to the cylinder head and operatively connected to the at least one air intake passageway;
- a supercharger for boosting air to the air intake manifold, the supercharger having a driven shaft operatively connected to the crankshaft via a friction clutch supported by an intermediate shaft;
- and
- an electric starter having a drive gear,
- the intermediate shaft comprising a reduction gear operatively connected to the starter drive gear wherein in a starting operation, the electric starter rotates the crankshaft via the reduction gear of the intermediate shaft.
11 more elements
Dependencies are inferred from the claim text.