Crankshaft and cranktrain for internal combustion engine
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United States of America
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Apr 26, 2022
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N/A
app pub date -
Aug 19, 2020
filing date -
Aug 19, 2020
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Abstract
A crankshaft has a main journal surrounded by a main bearing defining a groove provided with oil from an oil gallery and at least one oil inlet formed in the main journal providing oil from the groove into the main journal. A first crankpin journal is connected to a first side of the main journal by way of a first web. A second crankpin journal is connected to a second side of the main journal by way of a second web. Pairs of crankpin bearings are provided around each of the first and second crankpin journals. Each crankpin bearing supports a piston rod thereon. Each of the first and second crankpin journals has a pair of oil outlets providing oil to a respective crankpin bearing. Oil passageways in the crankshaft provide the pairs of oil outlets in both the first and second crankpin journals with oil from the main journal.
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