Title:
非対称形の微細な湾曲構造を有する軸受を具えるクランクシャフトおよびクランクドライブ
Document Type and Number:
Japanese Patent JP6414823
Kind Code:
B2
Abstract:
The present invention relates to a crank-drive (1) with a crank-shaft (10), at least one connecting rod (11) and at least one piston (12), in particular a crank-drive (1) of an internal combustion engine, whereas the crank-shaft (10) features at least one radial bearing (13) for supporting the crank-shaft (10) in a crank-housing (14), at least one radial bearing (15) for connecting the connecting rod (11) to the crank-shaft (10), and the connection of the connecting rod (11) to the piston (12) features at least one radial bearing (16) and whereas the bearings (13, 15, 16) feature a bearing inner surface (17) and/or a bearing outer surface (18). According to the invention in at least one of the bearing surfaces (17, 18) are arranged micro-ramp structures (19) with an asymmetric form having a first concave section (20) between the bearing surface (17, 18) and a bottom point (21) of the micro-ramp structure (19) and a second concave section (22) between the bottom point (21) and the bearing surface (17, 18), whereas between the micro-ramp structures (19) are arranged sections of the bearing surface (17, 18).
Inventors:
Barbosa The Oliveira Ferreira Sales, Bruno
Santoro Cardo Ricardo
Duarte, Durval
Santoro Cardo Ricardo
Duarte, Durval
Application Number:
JP2015519376A
Publication Date:
October 31, 2018
Filing Date:
July 02, 2013
Export Citation:
Assignee:
ThyssenKrupp Metalurgica Campo Limpo Ltda.
International Classes:
F16C9/02; F16C3/06; F16C9/04; F16C17/02
Domestic Patent References:
| JP2005249127A | ||||
| JP2008095721A | ||||
| JP2012515303A |
Foreign References:
| US3305282 |
Attorney, Agent or Firm:
Patent business corporation Kita Aoyama International
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