Avl List Gmbh

Mario Theissl

Helmut Melde-Tuczai

Siegfried Loesch

Florian Bodensteiner

Abdelkarim Redouane

Anamaria Munteanu

Miroslaw Robaczewski

Katrin Wand

Kurt Salzgeber

The invention relates to a longitudinally adjustable connecting rod () for a reciprocating piston engine, in particular a reciprocating piston internal combustion engine, a reciprocating piston engine, and a vehicle comprising a reciprocating piston engine. The longitudinally adjustable connecting rod () comprises a longitudinal adjusting mechanism () for adjusting an effective length (L) of the connecting rod, a hydraulically actuated control device (), switchable at least between two control modes, for controlling the longitudinal adjustment, and an electromagnetically actuated hydraulic switching valve () for hydraulically actuating the control device ().

Length-adjustable piston rod with a control device that can be hydraulically actuated and a switching valve that can be electromagnetically actuated, a reciprocating piston engine and a vehicle

The invention relates to a length-adjustable connecting rod for a reciprocating piston engine, particularly a reciprocating piston internal combustion engine, comprising a hydraulic arrangement with which a length of the connecting rod can be adjusted, and a switching valve for controlling the inflow and outflow of a hydraulic medium into or out of the hydraulic arrangement, wherein the switching valve can be actuated electromagnetically.

Length-adjustable connecting rod with electromagnetically-actuatable switching valve

The invention relates to a reciprocating-piston machine, in particular an internal combustion engine, comprising at least one length-adjustable connecting rod () connected to a crank pin () of a crankshaft (), wherein the connecting rod () comprises at least one length-adjustment mechanism () and at least one electrically switchable and inductively actuatable control valve (). According to the invention, in order to enable a flexible alteration of the compression ratio in the easiest, most space-saving and reliable manner possible, the connection rod () has at least one induction device () which is arranged in the region of a large connecting-rod eye () of the connecting rod (), in a position in the connecting rod (), extending from at least one end face () of the connecting rod () and separated from a longitudinal axis () of the crank pin () by a crank pin distance (a), wherein the induction device () is or can be electrically connected to the control valve () and an electrical current can be induced in the induction device () during rotation of the crankshaft () by means of at least one starter device () attached to the crankshaft.

Reciprocating piston machine comprising a length adjustable connecting rod and an inductively actuatable control valve

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.

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Schwanberg, Austria

Mario Theissl