Crankshaft support structure
AssigneeHonda Motor Co., Ltd.
InventorsNoriyuki SUZUKI, Hiroshi YOKOTA
Life of this patent
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Abstract
A first angle portion where part of a bearing cap side wall portion is cut out and a second angle portion where part of a bearing cap bottom surface portion is cut out are formed in a region (an angle region of a bearing cap) including a part where respective extension portions of the bearing cap side wall portion and the bearing cap bottom surface portion intersect each other, and a gap is provided between the crankcase side wall portion of a journal wall and the first angle portion and between a crankcase bottom surface portion and the second angle portion.
Claims18
A crankshaft support structure comprising a bearing cap press fitted and fastened to a crankcase, with a crankshaft rotatably supported between the crankcase and the bearing cap,
- wherein the bearing cap includes a bearing cap side wall portion such that a press-fit load is exerted between the crankcase and the bearing cap side wall portion when the bearing cap is press fitted to the crankcase, and a bearing cap bottom surface portion making contact with the crankcase when the bearing cap is press fitted to the crankcase,
- a first angle portion where part of the bearing cap side wall portion is cut out and a second angle portion where part of the bearing cap bottom surface portion is cut out are formed in a region including a part where respective extension portions of the bearing cap side wall portion and the bearing cap bottom surface portion intersect each other, and
- the crankcase includes a crankcase side wall portion making contact with the bearing cap side wall portion, and a crankcase bottom surface portion making contact with the bearing cap bottom surface portion, with a gap provided between the crankcase side wall portion and the first angle portion and between the crankcase bottom surface portion and the second angle portion.
Dependencies are inferred from the claim text.