Automatic choke control system for general-purpose engine

一种内燃机、阻风门的技术，应用在机器/发动机、装料系统、机械设备等方向，能够解决难以着火、积污等问题，达到防止积污的效果

Inactive Publication Date: 2007-01-17
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the recoil starter is operated with the choke valve closed, a large amount of fuel will be injected even though the above-mentioned switch operation has not been performed (ignition cannot be performed at this time), and the fuel may adhere to the engine. So-called fouling that is difficult to catch on the spark plug

Method used

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  • Automatic choke control system for general-purpose engine
  • Automatic choke control system for general-purpose engine
  • Automatic choke control system for general-purpose engine

Examples

Experimental program
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Embodiment 1

[0016] figure 1 It is an overall view of an automatic choke valve device for a general-purpose internal combustion engine according to a first embodiment of the present invention.

[0017] exist figure 1 In , symbol 10 denotes a general-purpose internal combustion engine (hereinafter referred to as "engine"). The engine 10 is an air-cooled four-cycle single-cylinder OHV engine (a displacement of, for example, 400 cc), which is used as a drive source in various applications such as generators and agricultural machinery.

[0018] A piston 14 is reciprocatably housed in a cylinder (cylinder block) 12 of the engine 10 . Cylinder head 16 is installed on the top of cylinder 12, and cylinder head 16 is provided with: combustion chamber 18, and it faces the top of piston 14; In addition, the cylinder head 16 is also provided with: an intake valve 24, which opens and closes between the combustion chamber 18 and the intake port 20; an exhaust valve 26, which opens and closes between ...

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PUM

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Abstract

This invention provided an auto-choke device of a general-purpose internal combustion engine preventing wet fouling by inhibiting fuel injection when a recoil starter is operated in a state where ignition does not occur. It is judged whether ignition is made practicable through operation of a combination switch by an operator (whether the combination switch is operated to an on-position) (S18) and an opening of a choke valve is adjusted by controlling movement of an electric motor for choke based on the judgment result. Specifically, when the ignition is judged not to be made practicable (the combination switch is in an off-position), a choke-valve full open instruction is outputted and the movement of the electric motor for choke is controlled so that the choke valve is fully opened (S30).

Description

technical field [0001] The invention relates to an automatic choke device for a general internal combustion engine. Background technique [0002] For general-purpose internal combustion engines used as driving sources in various applications such as generators and agricultural machinery, the following proposals have been made in recent years. Starting performance of internal combustion engines. As an automatic choke device, for example, a technique described in JP-A-2004-232529 is known. [0003] To start general purpose internal combustion engines, recoil starters are commonly used. When starting an internal combustion engine by means of a recoil starter, an operator first operates a switch connected to an ignition system of the internal combustion engine to make ignition executable, and then operates the recoil starter. [0004] However, the fuel supply of general internal combustion engines is usually carried out by carburetors. Therefore, when the recoil starter is o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M1/08
CPCF02M1/08
Inventor 新荻义久福岛友树
Owner HONDA MOTOR CO LTD
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