Zf Friedrichshafen Ag

Christian Staiger

Oliver Angele

Martin Brehmer

Christoph Margraf

Tamas Gyarmati

Carl Schilling

Robert Reiser

Stefan Benz-Breitweg

Felix Fink

Manuel Steinmann

Sebastian Freis

Markus Herrmann

Angelika Ebert

Monika Rößner

Tobias Miller

Eberhard Biermann

Florian Lanz

Andre Willburger

A shaft (W) for a motor vehicle transmission (G) includes four axial bore holes (B, B, B, B) for conducting fluid within the shaft (W). A central axis of each of the four bore holes (B, B, B, B) is spaced apart from an axis of rotation (WA) of the shaft (W). A radial distance (r) between the central axis of at least two of the four bore holes (B, B, B, B) and the axis of rotation (WA) differs from a radial distance (r) between the central axis of one of the remaining bore holes and the axis of rotation (WA). A transmission (G) for a motor vehicle with a shaft (W) is also provided.

Shaft for a motor vehicle transmission

A drive train unit (HY, G) for a motor vehicle includes a first shaft (TW), a second shaft (PW), and a third shaft (AN). The first shaft (TW) is rotatably mounted at an inner diameter of the second shaft (PW) with a first bearing (L). The second shaft (PW) is rotatably mounted at an inner diameter of the third shaft (AN) with a second bearing (L, L). A lube oil feed to the first bearing (L) and the second bearing (L, L) takes place through a bore hole (B) arranged in the first shaft (TW). An oil baffle chamber (S) is formed at an inner surface of the second shaft (PW) and includes a first outflow (S) and a second outflow (S). A drive train for a motor vehicle may include such a drive train unit (HY, G).

Drive train unit and drive train for a motor vehicle

A shaft (W) for a motor vehicle transmission (G) may have axial bore holes positioned within the shaft and configured to guide fluid within the shaft. The shaft may have first, second, and third axial sections (W, W, W), the second axial section being axially between the first and third axial sections. Fluid enters the axial bore holes in the second axial section and exits the axial bore holes in the first and third axial sections. One of the axial bore holes (B; B, B) is arranged, at least partially, in the first axial section and is radially spaced from an axis of rotation (WA) of the shaft. Another of the axial bore holes (BRS; B_SE, B) is arranged, at least partially, in the third axial section. The one of the axial bore holes (B; B, B) is coaxial with the other of the axial bore holes (BRS; B_SE, B).

Transmission shaft, transmission, and motor vehicle drivetrain

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Immenstaad, Germany

Christian Staiger