Title:
JOURNAL BEARING STRUCTURE FOR CRANKSHAFT
Document Type and Number:
WIPO Patent Application WO/2006/025157
Kind Code:
A1
Abstract:
A journal bearing structure for a crankshaft, where cracks are prevented from occurring in a cylinder block. A journal bearing structure for a crankshaft, supporting a journal (35) of a crankshaft (33) in a sandwiched manner by holding it by a cylinder block (30) and a bearing cap (3), wherein an outer side end section in a width direction of a joining surface (3a), to which the cylinder block (30) is joined, of the bearing cap (3) is formed to have projections and recesses. Grooves extending in the width direction may be formed in a longitudinal direction on the outer end section in the width direction of the joining surface of the bearing cap. A joining line (boundary line of tension) on the cylinder block, on which line the outer end section in the width direction of the bearing cap and the cylinder block are joined, is shaped to have projections and recesses in the width direction and becomes longer, and as a result, tensile stress occurring in the cylinder block can be dispersed in the width direction to prevent cracks from occurring.
Inventors:
FUJISAWA HIDEO (JP)
Application Number:
PCT/JP2005/013022
Publication Date:
March 09, 2006
Filing Date:
July 14, 2005
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
FUJISAWA HIDEO (JP)
FUJISAWA HIDEO (JP)
International Classes:
F02F7/00; F16C9/02
Foreign References:
| JPS63132113U | 1988-08-30 | |||
| JPH0362216U | 1991-06-18 | |||
| JPH01136715U | 1989-09-19 |
Other References:
See also references of EP 1808607A4
None
None
Attorney, Agent or Firm:
Kinutani, Nobuo (4-3, Toranomon 1-chome,, Minato-k, Tokyo01, JP)
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