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(11) | EP 2 949 889 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | ENGINE AND VEHICLE |
| (57) A straight line that passes through the center of rotation of a cam shaft and the
center of rotation of a weight is assumed to be a vertical axis as seen from the axial
direction of the cam shaft. A straight line that is orthogonal to the vertical axis
and that passes through the center of rotation of the cam shaft is assumed to be a
horizontal axis. A direction from the center of rotation of the cam shaft toward the
center of rotation of the weight among directions parallel to the vertical axis is
assumed to be a first vertical direction. One direction among the directions parallel
to the horizontal axis is assumed to be a first horizontal direction. The center of
gravity of the weight is disposed in a first region as seen from the axial direction
of the cam shaft. The first region is located in the first vertical direction from
the horizontal axis and in the first horizontal direction from the vertical axis.
The weight includes a first portion that is disposed in the first region as seen from
the axial direction of the cam shaft. In a closed state, the first portion includes
a first protruding portion that protrudes to the outside of an external peripheral
surface of the bearing as seen from the axial direction of the cam shaft.
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