Machine element or mechanism – Elements – Cranks and wrist pins
Patent
1988-09-15
1990-06-19
Luong, Vinh T.
Machine element or mechanism
Elements
Cranks and wrist pins
123192B, 74603, F16C 304
Patent
active
049342118
ABSTRACT:
An engine crankshaft has a crankpin that is radially slidably mounted relative to the crankshaft axis so that its axis can follow other than a circular path centered on the cranking axis. The mechanism includes at least one main bearing section with a stationary eccentric bearing surface, and at least one web fixed to the crankshaft and extending radially from the main bearing section. A housing is slidably mounted on guide surfaces on the webs for a sliding movement along the web, and has a crankpin secured thereto. The non-rotating eccentric bearing surfaces engaged by the housing force the housing to slide radially in and out along the web in synchronism with rotation of the crankshaft such that the distance of the center of the crankpin axis from the center of the main bearing section axis varies as a function of the angle of rotation of the crankshaft.
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Drouillard Jerome R.
Ford Motor Company
Luong Vinh T.
Sadler Clifford L.
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