Avl List Gmbh

Kurt Salzgeber

Wolfgang Kling

Mario Theissl

The invention relates to a reciprocating piston engine, in particular an internal combustion engine, comprising at least one length adjustable connecting rod () connected to a crankshaft (), which connecting rod () comprises at least one first rod part () having a small connecting-rod eye () and at least one second rod part () having a large connecting-rod eye (), which two rod parts () can be displaced telescopically with respect to and/or into each other by means of a length adjustment device (), wherein the length adjustment device () can be fluidically connected in at least one position of a control valve () to at least one oil pressure line (), and can be separated from the oil pressure line () in at least one second position of the control valve (), wherein the control valve () can be electrically switched and inductively actuated. In order to allow the compression ratio to be flexibly changed in a way that is as simple, space-saving and reliable as possible, the control valve () can be electrically connected to at least one induction device () fixed to the connecting rod, in which an electrical current can be induced in at least one position of the connecting rod () by means of at least one magnet device () fixed to the crank housing or crankshaft.

Reciprocating piston engine, in particular internal combustion engine

The invention relates to a thermoelectric generator unit () comprising at least one thermoelectric module (), which comprises an exhaust gas heat exchanger () on one side and a coolant heat exchanger () on the opposite side in a sandwich-like arrangement, wherein the exhaust gas heat exchanger and the coolant heat exchanger () are designed as flat tubes, the flat sides () of which are each connected by means of lateral wall sections (). According to the invention, side walls () are fastened to the lateral wall sections () of at least the two heat exchangers () lying on the outside, which side walls absorb the clamping forces for an even, permanent compression of the individual elements () of the thermoelectric generator unit (). The thermoelectric module () is laterally sealed by means of the side walls () that absorb the clamping forces.

Thermoelectric generator unit

A piston of an internal combustion engine includes a cavity for gases passing a piston ring and a first flow path leading from the cavity to a piston ring region and a second flow path extending from the cavity to an outlet opening for removing gases to an inlet opening in a cylinder wall in at least one piston position.

Internal combustion engine

The invention relates to an internal combustion engine comprising at least one piston which is mounted in a cylinder in a reciprocating manner.

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Graz, Austria

Kurt Salzgeber