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Iron-based metal bearing cap cast into light-alloy member

A bearing cover, metal technology, used in bearings, crankshaft bearings, shafts and bearings, etc., can solve problems such as bearing surface deformation of the bearing cover

Active Publication Date: 2015-07-15
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned conventional example, at the operating temperature of the internal combustion engine, the light alloy member inserted into the concave portion of the bearing cap expands more than the bearing cap made of an iron-based member, so the bearing surface of the bearing cap may be deformed.

Method used

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  • Iron-based metal bearing cap cast into light-alloy member
  • Iron-based metal bearing cap cast into light-alloy member
  • Iron-based metal bearing cap cast into light-alloy member

Examples

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Embodiment Construction

[0016] Below, according to Figure 1 to Figure 6 The shown one embodiment describes the iron-based metal bearing cap cast in the light alloy member of the present invention.

[0017] exist figure 1 and image 3 Among them, the bearing cap 1 made of iron-based metal casted in a light alloy member is formed of iron-based metal. The bearing cap 1 includes: an arc-shaped portion 2 for forming a bearing surface; a flange portion 3 extending to both sides connected to both ends of the arc-shaped portion 2; a hub portion 4 standing up It is arranged on the back side of each of the two flange parts 3, and the mounting bolts are penetrated therethrough. In addition, the bearing cover 1 includes the following members integrally: a connecting beam 5, which is arranged separately from the back surface of the arc-shaped part 2, and connects the top ends of the two hub parts 4; a pair of reinforcing beams 6, which connect Connection portions between the connection beam 5 and the hub por...

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PUM

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Abstract

An iron-based metal bearing cap according to the present invention to be cast as a core into a light metal member includes an arcuate portion which forms a bearing surface, left and right flange portions which are arranged and connected to opposite ends of the arcuate portion, and boss portions which are arranged to stand on the rear surfaces of the left and right flange portions and through which mounting bolts are inserted. The bosses are formed with grooves or projections.

Description

technical field [0001] The invention relates to a bearing cap for the journal bearing of a crankshaft of an internal combustion engine, in particular to a bearing cap cast as a core in a light-alloy component. Background technique [0002] As described in JPS61-45108A, a bearing cover made of an iron-based metal that is cast as a core body into a light alloy member such as a bearing cover has conventionally been proposed. [0003] It utilizes a pair of hubs each having a fixing bolt hole, a bearing surface is formed between the hubs to connect the hubs, and a cross member having recesses on both side surfaces forms a bearing cap cast as a core. Moreover, by integrally casting the bearing cover as a core in a light alloy component such as a bearing cover, the material of the bearing cover can enter into the recess of the core, so that a good combination can be formed between the two components. [0004] However, in the above-mentioned conventional example, at the operating t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C9/02
CPCF16C2360/22F16C9/02F16C2220/04
Inventor 持田浩明
Owner NISSAN MOTOR CO LTD