Title:
エンジンにおけるピストン油冷装置
Document Type and Number:
Japanese Patent JP4458600
Kind Code:
B2
Abstract:
A piston is reliably cooled from its backside by using an oil for lubricating portions around a crank pin of a crankshaft. An engine including a crankshaft is provided with lubricating oil bores to supply an oil from journals of the crankshaft to an outer peripheral surface of a crank pin. A larger end of the connecting rod is provided with a pair of opposed axial oil grooves in its outer peripheral surface, and with an annular oil passage connected to the axial groove in its side thrust face. A pair of cooling oil injection grooves each have one end connected to the annular oil passage and the other end directed to a piston while they are provided proximate to each other.
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Inventors:
Suzuki Nobuo
Mitsuharu Tanaka
Hiroyuki Yoshida
Mitsuharu Tanaka
Hiroyuki Yoshida
Application Number:
JP2000010370A
Publication Date:
April 28, 2010
Filing Date:
January 17, 2000
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F01M1/08; F01M1/06; F01M11/02; F02B61/04; F02B75/20; F02B75/02; F02B75/18
Domestic Patent References:
| JP57126503U | ||||
| JP58006906U | ||||
| JP61148913U | ||||
| JP9242745A |
Attorney, Agent or Firm:
Ken Ochiai
Kazuaki Niki
Kazuaki Niki