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General engine

A general-purpose engine and transmission wheel technology, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of large size of general-purpose engines, smaller crankcase lubricating oil volume, and reduced continuous working time, so as to avoid size and improve The effect of support rigidity

Inactive Publication Date: 2004-05-26
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the inside of the crankcase is divided into two by the bearing support member, the amount of oil that can be held in the crankcase becomes smaller, which may result in a decrease in continuous operation time
When trying to ensure that there is sufficient oil, the size of the crankcase will become too large, and the size of the general engine will also become too large

Method used

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  • General engine
  • General engine

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Embodiment Construction

[0012] Figure 1 and figure 2 As shown, the universal engine is an air-cooled single-cylinder engine used, for example, in work machines. The engine main body 5 is formed by a crankcase 6 , a cylinder block 7 protruding slightly upward from one side of the crankcase 6 , and a cylinder head 8 connected to the head of the cylinder block 7 . A large number of air cooling fins 7 a and 8 a are arranged on the outer sides of the cylinder block 7 and the cylinder head 8 . The crankcase 6 is mounted on engine mounts of various machine tools via a mounting surface 6 a which is a bottom surface of the crankcase 6 .

[0013] The crank case 6 is formed of a case main body 9 and a cover body 10 . The case main body 9 is a main part of the crank case 6 and is integrally formed with the cylinder block 7 . A cover 10 is fixed to the tank body 9 so as to close the opening of the tank body 9 in a liquid-tight manner.

[0014] A cylinder bore 12 into which the piston 11 is slidably fitted is ...

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Abstract

The engine casing is formed from a principal housing body and a cover fixed to it. A bearing support element is located between a driving transmission wheel and a crankshaft arm which is at an end in the axial direction. The bearing support element has a shape which allows the oil contained in the casing to flow between its opposite sides and is mounted on the housing principal body.

Description

technical field [0001] The present invention relates to a general-purpose engine in which a case main body, which is a main part of a crank case, is integrally formed with a cylinder block, and a crankshaft having a plurality of crank arms is supported by bearings in and mounted on the case main body The component is rotatably supported, and a drive wheel for transmitting rotational force to the valve operating mechanism, which is installed in the crankcase, is fixedly arranged on the crankshaft so as to be outside the crank arm at one axial end among the crank arms. Background technique [0002] A general-purpose engine is known from Japanese Patent Application No. 2001-329910 in which a crankcase is formed of a case body and a cover connected to the case body, and the cover serves as a bearing support member. [0003] However, in a conventional structure, a cover body (bearing support member) is arranged outside the drive wheel fixed to the crankshaft so as to be outside t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/02F02B75/16F02F7/00F16C9/02
CPCF02B75/16F02F7/0053F02B2075/027
Inventor 千叶省作坂本一弘川瀬祥司
Owner HONDA MOTOR CO LTD
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