Bearing apparatus of crankshaft for internal combustion engine

US10145409B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10145409-B2
Application numberUS-201615358593-A
CountryUS
Kind codeB2
Filing dateNov 22, 2016
Priority dateNov 27, 2015
Publication dateDec 4, 2018
Grant dateDec 4, 2018

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  2. Abstract

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  5. First independent claim

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Abstract

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There is provided a bearing apparatus of a crankshaft for an internal combustion engine. The bearing apparatus includes a crankshaft having a plurality of journal portions and a plurality of crank pin portions; a main bearing supporting the crankshaft; and a bearing housing holding the main bearing. The plurality of journal portions include a first journal portion having a lubricating oil passage and a second journal portion not having the lubricating oil passage. The first and second journal portions and are supported by the first and second main bearings and. The bearing housing includes an Al alloy upper housing and an Fe alloy lower housing. The groove depth of the oil groove of the upper half bearing of the second main bearing is one half or less than the groove depth of the oil groove of the upper half bearing of the first main bearing.

First claim

Opening claim text (preview).

The invention claimed is: 1. A bearing apparatus of a crankshaft for an internal combustion engine, the bearing apparatus comprising: a crankshaft including a plurality of journal portions and a plurality of crank pin portions; main bearings supporting the crankshaft; and a bearing housing holding the main bearings, wherein the plurality of journal portions include a first journal portion having a lubricating oil passage for supplying oil to the crank pin portions of the crank…

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What does patent US10145409B2 cover?
There is provided a bearing apparatus of a crankshaft for an internal combustion engine. The bearing apparatus includes a crankshaft having a plurality of journal portions and a plurality of crank pin portions; a main bearing supporting the crankshaft; and a bearing housing holding the main bearing. The plurality of journal portions include a first journal portion having a lubricating oil passa…
Who is the assignee on this patent?
Daido Metal Co
What technology area does this patent fall under?
Primary CPC classification F16C3/14. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Dec 04 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).