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Patent Searching and Data


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 (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
SHIGIHARA, Takuzo (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2016/077761
Publication Date:
August 03, 2017
Filing Date:
September 21, 2016
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
JAPAN ENGINE CORPORATION (1 Minamifutami, Futami-cho Akashi-sh, Hyogo 93, 〒6740093, JP)
International Classes:
F16C9/04; F02B75/32; F02B77/00; F16C7/02; F16C17/02; F16C33/10
Foreign References:
JPH11230170A1999-08-27
JP2007532845A2007-11-15
JPS6348017U1988-04-01
JPH09144759A1997-06-03
Attorney, Agent or Firm:
FUJITA, Takaharu (37F The Landmark Tower Yokohama, 2-2-1 Minatomirai, Nishi-ku, Yokohama-sh, Kanagawa 37, 〒2208137, JP)
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