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An internal combustion engine

A technology for internal combustion engines and crankcases, which is applied to mechanical equipment, engine components, engine starting, etc., and can solve problems such as complex operations

Inactive Publication Date: 2010-05-26
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the method of using jigs for temporary assembly, the number of jigs and parts may increase, and the temporary assembly operation becomes necessary, making the work more complicated.

Method used

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  • An internal combustion engine
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  • An internal combustion engine

Examples

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Embodiment Construction

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0029] In addition, in the following description, the front-rear and up-down directions are the directions of the vehicle body viewed from the driver. In addition, the arrow F in the figure indicates the front of the vehicle body, the arrow L indicates the left side of the vehicle body, and the arrow U indicates the upper side of the vehicle body.

[0030] figure 1 It is a side view of a motorcycle 1 according to an embodiment of the present invention. The vehicle body frame 2 of the motorcycle 1 includes: a head pipe 3 at the front of the vehicle body; a main frame 4 slanting downward and extending obliquely from the head pipe 3; at the rear of the main frame 4 A pair of left and right pivot brackets 5 and 5 that extend downward and fixed; at the rear of the main frame 4, from near the front of the fixed position of the pivot brackets 5 and 5, extend upwards obliquely to...

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Abstract

The invention provides an internal combustion engine that can be assembled temporarily without increasing amounts of chucking appliances or components. A box body (91) covers a power transmission component comprises a crankshaft case (24B) on a lateral side and a part (transmission case (61A) on internal side) amount the power transmission components; one end of the shaft component (155) that set parappel to the crank (51) communicates with an opening (24B1) on at least one side of the crankshaft case (24B), is supported by the box body that covers the power transmission component. The other end of the shaft component (155) is supported by a crankshaft case (24A) on the other side; the shaft component (155) is provided with an expansion part (160) that set on opening (24B1) of the crankshaft case (24B).

Description

Technical field [0001] The invention relates to an internal combustion engine. Background technique [0002] In an engine (internal combustion engine) mounted on a motorcycle or the like, there is a technology of supporting a support shaft of a power transmission system and a support shaft of a starting system installed in the engine on a crankcase divided into left and right. When assembling this engine, the respective support shafts are assembled on one side of the left and right divided crankcase for positioning, and then the other side of the crankcase is assembled (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 59-058123. [0004] However, in the case of connecting another case (such as a transmission case) to the outside of the crankcase, and using this case and another crankcase to support the engine structure of the supporting shaft, the other crankcases can only be assembled after the left and right crankcases...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B61/02F02N3/04
Inventor 泷口亲司阿部克哉渡边觉
Owner HONDA MOTOR CO LTD