Air cooling internal combustion engine with sensor for detecting ic engine state

An internal combustion engine and sensor technology, which is applied in the direction of machine/engine, engine cooling, air cooling, etc., to achieve the effects of improving cooling, large freedom of configuration, and suppressing changes in resistance

Active Publication Date: 2010-08-11
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to prevent the sensors and wires from becoming overheated by the heat from the internal combustion engine, they need to be cooled appropriately, so there are restrictions on the arrangement of the sensors and wires, or on the contrary, the arrangement of peripheral parts placed near the sensors and wires.

Method used

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  • Air cooling internal combustion engine with sensor for detecting ic engine state
  • Air cooling internal combustion engine with sensor for detecting ic engine state
  • Air cooling internal combustion engine with sensor for detecting ic engine state

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6 .

[0029] First, referring to FIGS. 1 and 2 , an air-cooled internal combustion engine E employed in the present invention is mounted on a two-wheeled vehicle as a vehicle together with a power transmission device having a V-belt automatic transmission M.

[0030] The internal-combustion engine E supported by the vehicle body is a single-cylinder 4-stroke internal-combustion engine in a horizontal configuration with the rotation center line L1 of the crankshaft 7 pointing to the left and right directions, and has a cylinder 1 in the direction of the cylinder axis L2 (hereinafter referred to as (cylinder axis direction) ) The crankcase 2 combined with the crankshaft 7 side of the cylinder 1, the cylinder head 3 combined with the anti-crankshaft 7 side of the cylinder 1 in the cylinder axis direction, and the cylinder head cover 4 combined with the cylinder head 3 constitute...

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Abstract

An air-cooling type internal combustion engine with simple structure to ensure prevention function and cool performance of the sensor and the wire connecting to the sensor, and arranging degree of freedom of sensor is large. The air-cooling type internal combustion (E) cooled forcibly by the cooling fan (40) has a shield (45), forming cooling wind ventilation way (46) enclosing cylinder cover (3)and cylinder (1) by covering the cylinder cover and the cylinder. An oxygen concentration sensor (70) mounted on the cylinder cover and an oil temperature sensor (75) mounted on the cylinder (1) and wires (71, 76) connecting to each sensor (70, 75) are provided on the ventilation way (46), in addition, each wire is provided on the upstream of the cooling wind on the cylinder cover and the cylinder.

Description

technical field [0001] The present invention relates to an air-cooled internal combustion engine mounted on a vehicle, for example, having a sensor for detecting the state of the internal combustion engine and a shroud forming a ventilation passage for cooling air surrounding the main body of the internal combustion engine. technical background [0002] In order to detect the engine temperature of an air-cooled internal combustion engine, there is known an air-cooled internal combustion engine in which a shroud is formed to surround a cooling air passage of the engine main body (see, for example, Patent Document 1). In addition, an internal combustion engine having an exhaust gas sensor that detects the property of exhaust gas as the state of the internal combustion engine is also known (for example, refer to Patent Document 2). [0003] Patent Document 1: JP-A-2004-11436 [0004] Patent Document 2: JP-A-2004-316430 [0005] However, in the case where the sensor detecting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D35/00F01P1/06F01P5/06
CPCF01P1/06F01P5/02F02D35/0015F02F1/24
Inventor 掛水贤一郎
Owner HONDA MOTOR CO LTD
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