Front suspension for an electric snowmobile
AssigneeAurora Powertrains Oy
InventorsOlli Haavikko, Matti Autioniemi, Jori-Jaakko Niskanen
Life of this patent
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Abstract
Front shock absorbers and related support (i.e. suspension) structures are within the frame of an electric snowmobile. The structure includes upper and lower suspension A-arms and a spindle for both skis. A rear connection point for the lower suspension A-arm is placed more to the rear within the frame. The length of the front shock absorbers is designed to be larger. This configuration is possible because of more space available in the electrically driven snowmobile. The caster (β) and camber (α) angles may be kept as constant during any compression magnitude of the front shock absorbers.
Claims7
An electric snowmobile with efficient shock absorbance properties, wherein the electric snowmobile comprises:
- two skis at a front side of the electric snowmobile;
- an endless drive track, and a roller tunnel for the endless drive track;
- a camber angle (α) and a caster angle (β) as intrinsic parameters of the electric snowmobile;
- a frame, comprising a front part of the frame, wherein the front part of the frame comprises:
- two upper suspension A-arms and two lower suspension A-arms;
- wherein,
- the upper and the lower suspension A-arms locate substantially on top of one another with a mutual distance, with mutually parallel mirroring angles of the A-arms, for each pair of upper and lower suspension A-arms for each of the skis, and the electric snowmobile further comprising:
- front shock absorbers having top connection points locate adjacently, and substantially on a top of a substantially pyramid-shaped structure of the front part of the frame, wherein:
- a rear connection point for the lower suspension A-arm in both the left and right sides locates at or right next to a longitudinal side edge of the roller tunnel, and further, the rear connection point for the lower suspension A-arm in both the left and right sides locates at or close to a lateral vertical plane along a front end of the roller tunnel;
- and
- the frame comprising a triangular forming so that impacts through the lower suspension A-arms to the frame are partly carried by the triangular forming of the frame.
Dependencies are inferred from the claim text.