Systems and methods for a crankshaft of a piston engine
AssigneeFord Global Technologies, LLC
InventorMarkus Reith
Life of this patent
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Abstract
Methods and systems are provided for the design and manufacture of a crankshaft of a piston internal combustion engine. In one example, a crankshaft comprises a crankshaft throw, the crankshaft throw comprising a crankpin and crank webs. The crank webs are formed asymmetrically in a region of the crankpin with respect to a plane intersecting an axis of rotation of the crankshaft and a center axis of the crankpin, such that the breaking strength of the crankshaft throw is increased at a crankshaft angle of rotation which differs from the top dead center position of a piston to which the crankpin is coupled, and at which the piston exerts a maximum combustion-induced force on the crankpin.
Claims5
A method for producing a crankshaft, comprising:
- generating a first crankshaft design which comprises a crankshaft with symmetrically formed crank webs;
- determining a distribution of loads in the crank webs which occur when a piston driving rotation of the crank webs exerts a maximum force on the crank webs;
- generating a second crankshaft design based on the first crankshaft design and the distribution of loads in the crank webs, where points of the crank webs which are more loaded at the maximum force are reinforced by the addition of crank web material;
- and
- manufacturing the crankshaft based on the second crankshaft design.
Dependencies are inferred from the claim text.