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Patent Searching and Data


Title:
ENGINE LUBRICATING DEVICE
Document Type and Number:
Japanese Patent JP2011163146
Kind Code:
A
Abstract:

To provide an engine lubricating device not causing insufficient oil supply in a piston sliding portion while reducing the amount of lubricating oil by the use of needle bearings.

A sliding portion oil supply path 33 for supplying oil to a bearing 8 at the small end of a connecting rod and the piston sliding section 14 is provided separately from bearing oil supply paths 21 supplying oil to a journal bearing 3 disposed upstream and a bearing 6 at the large end of the connecting rod disposed downstream. The journal bearing 3 and bearing 6 at the large end of the connecting rod are respectively composed of needle bearings 40, 41, and the diameter of each oil hole 48 in the upstream needle bearings 40 is reduced, thereby restricting the amount of oil supplied with respect to the needle bearings 40, 41.


Inventors:
Katayama, Akihiko
Terada, Takanori
Yamada, Haruki
Application Number:
JP2010000024059
Publication Date:
August 25, 2011
Filing Date:
February 05, 2010
Export Citation:
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Assignee:
NTN CORP
International Classes:
F01M1/06; F01M1/08; F01M1/16; F01M9/10; F02F1/24; F16C3/14; F16C9/02; F16C9/04; F16C19/26; F16C19/46; F16C33/46; F16C33/66; F16H53/02; F16N7/38; F16C33/78
Domestic Patent References:
JPH08296420A1996-11-12
JP2008223915A2008-09-25
JP2008057743A2008-03-13
JPS63119821U1988-08-03
JP2006038172A2006-02-09
JPH08144842A1996-06-04
JPS63119821U1988-08-03
JPH01145910U1989-10-06
JP2006038172A2006-02-09
JP2008057743A2008-03-13
JPH0868308A1996-03-12
JP2009150307A2009-07-09
Attorney, Agent or Firm:
鳥居 和久
鳥居 洋