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Title:
OIL SUPPLY STRUCTURE OF CRANK BEARING
Document Type and Number:
Japanese Patent JP2019002438
Kind Code:
A
Abstract:
To reduce the capacity of an oil pump which supplies lubrication oil to a crank bearing.SOLUTION: An oil supply structure of a crank bearing includes: a slide bearing 9 which supports a journal part of a crank shaft C; an oil pump 8 which sends lubrication oil; an oil supply passage 10 which supplies the lubrication oil sent from the oil pump 8 to the slide bearing 9; and a return passage 20 which returns the lubrication oil in the slide bearing 9 to the oil pump 8 when a pressure of the lubrication oil in the slide bearing 9 is increased. The oil supply structure of the crank bearing includes a return side valve gear 23 which opens or closes the return passage 20 on the basis of a pressure state of the lubrication oil in the slide bearing 9. An electromagnetic valve is adopted as the return side valve gear 23. The electromagnetic valve is opened when the pressure of the lubrication oil in the slide bearing 9 becomes a predetermined pressure or higher.SELECTED DRAWING: Figure 1

Inventors:
大橋 一也
中井 英夫
赤瀬川 純
笹峯 真一
森本 学
Application Number:
JP2017115845A
Publication Date:
January 10, 2019
Filing Date:
June 13, 2017
Export Citation:
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Assignee:
三菱自動車工業株式会社
International Classes:
F16C3/14; F01M1/06; F16C3/06; F16C9/02; F16N7/38
Attorney, Agent or Firm:
鎌田 直也
鎌田 文二
中谷 弥一郎
赤塚 雅則
清水 隆



 
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