Title:
OIL LUBRICATION STRUCTURE OF CONNECTING ROD
Document Type and Number:
Japanese Patent JPH04301109
Kind Code:
A
Abstract:
PURPOSE:To provide the oil lubrication structure of a connecting rod which is superior in lubrication performance. CONSTITUTION:A first annular groove 8 is formed on the block side 3c of a cylinder block 3 or on the outer side surface 1d of a crank arm portion 1c, and a second annual groove 9 is formed on the inner side 1e of the crack arm portion 1c or on a rod side surface 5c. Furthermore, a base-end portion oil passage 7 which is connected to the first annular groove 8 is formed in the cylinder block 3, an intermediate portion oil passage 10 which connects the first annular groove to the second annular groove 9 is formed in the crank arm portion 1c, and an end portion oil passage 1 for connecting the second annular groove 9 to lubricating oil blow-out holes 11a and 11b is formed in a connecting rod 4.
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Inventors:
NAKAYAMA KOJI
Application Number:
JP8741791A
Publication Date:
October 23, 1992
Filing Date:
March 28, 1991
Export Citation:
Assignee:
NIPPON DIA CLEVITE CO
International Classes:
F01M1/06; F01M1/08; F16C3/14; F16C7/00; (IPC1-7): F01M1/06; F01M1/08; F16C3/14; F16C7/00
Attorney, Agent or Firm:
Hiroyuki Maeda