Motorcycle Engine Crankcase for Simplified Engine Installation and Method of Installing the Same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
May 24, 2012
app pub date -
Nov 24, 2010
filing date -
Nov 24, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A motorcycle crankcase is configured to support a crankshaft in a manner such that the crankshaft is rotatable about a crankshaft axis. The motorcycle crankcase comprises a pair of piston cylinder mounts, first and second horizontally oriented downward facing mounting surfaces, a generally semi-cylindrical bottom surface, and a plurality of crankcase bolt lugs. The pair of piston cylinder mounts are configured and adapted to rigidly connect to a pair of piston cylinders oriented in an upright V-twin style manner. The first and second mounting surfaces are configured and adapted to secure the motorcycle crankcase to a motorcycle frame. The crankcase bolt lugs are spaced about the crankshaft axis and each of the crankcase bolt lugs partially protrudes radially outward from the bottom surface. The motorcycle crankcase is devoid of any portion positioned directly beneath the first mounting surface.
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