Power Unit
AssigneeObrist Technologies GmbH
InventorsFrank Obrist, Oliver Obrist
Life of this patent
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Abstract
A power unit for a hybrid vehicle is provided with a twin-cylinder reciprocating piston engine, which has two pistons which are guided in two cylinders in tandem arrangement. Two counter-directional crankshafts are connected with the pistons by connecting rods. At least one generator is rotatable co-directionally to the first crankshaft and counter-directionally to the second crankshaft. A camshaft with valve cams are operatively connected with control valves. A flywheel mass element is arranged on the second crankshaft or on a flywheel mass compensating shaft, and a compensating camshaft are provided. The compensating camshaft includes at least one compensating cam element which is operatively connected with a linearly guided compensating mass.
Claims13
A power unit, in particular for a hybrid vehicle, with
- a twin-cylinder reciprocating piston engine, which has two pistons that are guided in two cylinders in tandem arrangement, and two counter-directional crankshafts which are connected with the pistons by connecting rods,
- at least one generator, which is rotatable co-directionally to the first crankshaft and counter-directionally to the second crankshaft, and
- a camshaft having valve cams, which are operatively connected with control valves,
- characterized in that
- a flywheel mass element, which is arranged on the second crankshaft or on a flywheel mass compensating shaft, and a compensating camshaft are provided, wherein the compensating camshaft comprises at least one compensating cam element which is operatively connected with a linearly guided compensating mass.
The power unit according to claim 10, characterized in that
- the compensating camshaft a drive wheel which is operatively connected with the first and/or the second crankshaft via a timing belt or a timing chain.
Dependencies are inferred from the claim text.