Title:
CONNECTING ROD AND CROSSHEAD-TYPE ENGINE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2017/130457
Kind Code:
A1
Abstract:
The present invention suppresses pressure deformation of a bearing metal due to recessed parts such as an oil supply path or oil supply groove formed in a bearing surface at an end of a connecting rod, while preventing the bearing metal from being excessively thickened. A connecting rod (18) is provided with recessed parts (15, 16) which are formed in a bearing surface (8a) of an end (8A) of the connecting rod (18), and a bearing metal (11A) which is attached to the bearing surface (8a) and which has a half-cylindrical shape. When the opening width dimension of each of the recessed parts (15, 16) is defined as d and the thickness dimension of the bearing metal (11A) is defined as H, H is set so as to satisfy H>d·α and the range of the coefficient α is set so as to satisfy any one of: (a) α>0.6 in the case where the recessed parts are a hole and grooves and the opening width dimension d is less than 10 mm; (b) α=0.8 in the case where the recessed parts are a hole and grooves and the opening width dimension d is 10-40 mm; (c) α>0.5 in the case where all the recessed parts are holes and the opening width dimension d is less than 10 mm; and (d) α>0.6 in the case where all the recessed parts are holes and the opening width dimension d is 10-40 mm.
Inventors:
NISHIDA HIDEAKI (JP)
SHIGIHARA TAKUZO (JP)
SHIGIHARA TAKUZO (JP)
Application Number:
PCT/JP2016/077761
Publication Date:
August 03, 2017
Filing Date:
September 21, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
JAPAN ENGINE CORP (JP)
JAPAN ENGINE CORP (JP)
International Classes:
F16C9/04; F02B75/32; F02B77/00; F16C7/02; F16C17/02; F16C33/10
Foreign References:
| JPH11230170A | 1999-08-27 | |||
| JP2007532845A | 2007-11-15 | |||
| JPS6348017U | 1988-04-01 | |||
| JPH09144759A | 1997-06-03 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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