BEARING OIL FEED DEVICE
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United States of America Patent
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N/A
Issued Date -
Dec 6, 2012
app pub date -
Nov 5, 2010
filing date -
Feb 26, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A partial groove 14 is formed in an inner circumferential surface of an upper side bearing member 11 of a main bearing 5 which pivotally supports a main shaft 3A of a crankshaft 3, and a space D between an end portion of the partial groove 14 and each of crush reliefs 11b formed at both ends in a circumferential direction of the upper side bearing member 11 is provided within a range of 2 mm≦D≦main shaft diameter/3.
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