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Diagonal-cylinder universal four-stroke engine

A four-stroke engine, inclined cylinder technology, applied in the direction of machines/engines, mechanical equipment, etc.

Inactive Publication Date: 2006-11-08
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the increase in exhaust volume for greater output is limited by factors such as increased combustion vibration

Method used

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  • Diagonal-cylinder universal four-stroke engine
  • Diagonal-cylinder universal four-stroke engine
  • Diagonal-cylinder universal four-stroke engine

Examples

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Embodiment Construction

[0026] First, the overall layout of the inclined-cylinder general-purpose four-stroke engine will be explained.

[0027] refer to figure 1 , 4 and 5, the engine main body 1 of this oblique-cylinder general-purpose four-stroke engine E includes: a crankcase 2, a cylinder block 3 protruding slightly upward from one side of the crankcase 2, and a head connected to the cylinder block 3 cylinder head 4. The crankcase 2 is designed in such a way that it is mounted on engine beds of various types of working machines by means of a mounting surface 5 on the bottom surface of the crankcase 2 .

[0028] The crankcase 2 includes: a case main body 2a integrally cast with a cylinder block 3 to have an open end face; and a side cover 2b attached to the open end face. The opposite ends of the crankshaft 6 are rotatably supported in the case main body 2a and the side cover 2b by means of ball bearings 7, 7' and oil seals 8, 8'. One end of the crankshaft 6 protrudes out of the crankcase 2 a...

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Abstract

A kind of oblique-cylinder general-purpose four-stroke engine, which comprises: a crankcase (2), a cylinder block (3) protruding slightly upward from one side of the crankcase (2), connected to the head of the cylinder block (3) cylinder head (4). A pair of crankpins (6p) with a 360° phase difference are provided on the crankshaft (6). A pair of parallel cylinders (18) are formed in the cylinder block (3) such that they correspond to the crank pins (6p). A horizontally extending intake manifold (27) is arranged on the top surface of the cylinder head (4), and a horizontally extending exhaust manifold (35) is arranged on the bottom surface of the cylinder head 4. The carburetor (30) provided on one side of the cylinder head (4) is connected to the inlet manifold (27), and the exhaust pipe provided on the other side of the cylinder head (4) is connected to the exhaust manifold ( 35) on.

Description

【Technical field】 [0001] The present invention relates to a general-purpose four-stroke engine of inclined cylinder type, which comprises: a crankcase having a mounting surface; a crankshaft horizontally supported in the crankcase; a cylinder in which a piston attached to a crankshaft fits; and a cylinder head attached to the head of the cylinder block. 【Background technique】 [0002] A conventional oblique-cylinder general-purpose four-stroke engine has a single cylinder, as disclosed in Japanese Patent Application Publication No. JP5-28339. [0003] The inclined-cylinder general-purpose four-stroke engine has the advantage that a wide space for installing auxiliary equipment can be guaranteed above or below the cylinder block or cylinder head, thereby providing an overall compact structure. However, this conventional engine has only one cylinder. Therefore, an increase in the exhaust gas volume for greater output is limited by factors such as an increase in combustion vi...

Claims

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Application Information

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IPC IPC(8): F02B75/18F02B67/00
Inventor 篠田明久清水靖弘
Owner HONDA MOTOR CO LTD
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