Title:
Bearing device for crankshaft of internal combustion engine
Document Type and Number:
Japanese Patent JP6317786
Kind Code:
B2
Abstract:
Provided is a bearing device (1) for a crankshaft of an internal combustion engine including: a crankshaft (3) having a plurality of journal portions (61, 62); main bearings (41, 42) for supporting the crankshaft (3); and a bearing housing (8), wherein a range in which the oil groove (42G) of the upper-side halved bearing (42U) of the second main bearing (42) is formed in the circumferential direction includes at least a range of a circumferential angle of 20° within the ±45° region (¸1), a circumferential end portion of the oil groove (42G) on a rotationally forward side communicates with the crush relief (70) at a minimum, and is open to a circumferential end face (72) at a maximum, and a circumferential end portion of the oil groove (42G) on the rotationally backward side of the journal portion (62) is positioned on a circumferential center portion side of the upper-side halved bearing (42U) from a circumferential end face (72) of the upper-side halved bearing (42U).
Inventors:
Uezu Yusuke
Yasushi Saito
Yasushi Saito
Application Number:
JP2016134443A
Publication Date:
April 25, 2018
Filing Date:
July 06, 2016
Export Citation:
Assignee:
Daido Metal Co., Ltd.
International Classes:
F16C9/02; F01M1/06; F16C3/14; F16C17/02; F16C33/10
Domestic Patent References:
| JP2006125565A | ||||
| JP2012112472A | ||||
| JP2015129451A | ||||
| JP2017187149A | ||||
| JP201796474A |
Foreign References:
| WO2004038188A1 |
Attorney, Agent or Firm:
Asamura patent office
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