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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: 2012-07-18
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
  • An internal combustion engine
  • An internal combustion engine

Examples

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Embodiment Construction

[0028] Hereinafter, one 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, in the figure, arrow F indicates the front of the vehicle body, arrow L indicates the left side of the vehicle body, and arrow U indicates the upper side of the vehicle body.

[0030] figure 1 It is a side view of the motorcycle 1 according to one embodiment of the present invention. The vehicle body frame 2 of this automatic two-wheel vehicle 1 comprises: the head tube 3 of vehicle body front portion; A main frame 4 that is inclined downward and obliquely extends from this head tube 3 to the rear; A pair of left and right pivot brackets 5, 5 that extend downward and are fixed; at the rear of the main frame 4, they extend obliquely upward from the front near the fixed position of the pivot brackets 5, 5,...

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PUM

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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 setparappel 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 technique in which a support shaft of a power transmission system and a support shaft of a starting system provided in the engine are supported by a crankcase divided left and right. When assembling this engine, each of the support shafts is assembled to one side of the left and right divided crankcase for positioning, and then the crankcase on the other side is assembled (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Unexamined Patent Publication No. Sho 59-058123. [0004] However, in the case of an engine structure in which another casing (for example, a transmission case) is connected to the outside of the crankcase, and the casing and another crankcase are used to support the supporting shaft, the left and right crankcases can only be assemb...

Claims

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Application Information

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