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Automatic choke valve controlling device

A control device and choke technology, which can be used in charging systems, engine components, machines/engines, etc., to solve the problems of reduced accuracy, increased cost, and increased warm-up time of automatic chokes.

Inactive Publication Date: 2012-10-24
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the solution is to replace the resistor 2 for voltage adjustment, there is a problem that the cost will increase.
[0011] In addition, if the voltage applied to the heater 1 for automatic choke is adjusted only by the resistor 2 for voltage adjustment, since the resistance value of the resistor 2 for voltage adjustment is constant, the automatic choke control that adapts to the engine temperature cannot be performed. , so there is also the problem that the mixed gas is temporarily too rich to waste fuel, otherwise the machine will increase the warm-up time if the mixed gas is too lean, which will reduce the accuracy of the automatic choke valve control

Method used

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  • Automatic choke valve controlling device
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Examples

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Embodiment Construction

[0025] Embodiments of the present invention will be described below.

[0026] figure 1 is an equivalent circuit diagram showing an embodiment of the automatic choke control device of the present invention, figure 2 is for illustration figure 1 A diagram of the action of the automatic choke control device, image 3 yes display applies figure 1 A diagram of an example of a two-wheeled motorcycle engine with an automatic choke control device, Figure 4 ~ Figure 6 The display for is set to image 3 Diagram of an automatic choke valve on a carburetor.

[0027] First, use Figure 3 ~ Figure 6 Description application figure 1 engine with automatic choke control.

[0028] exist image 3 Inside a cylinder block 10 of the shown engine, a piston 12 connected to a connecting rod 11 is provided. On the upper portion of the cylinder block 10, a cylinder head 15 is provided between the piston 12 and a combustion chamber.

[0029] The cylinder head 15 is provided with an intak...

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Abstract

The purpose of the invention is to improve accuracy of an auto choke controller without increasing a cost. When engine speed detected by an engine speed detection sensor 49 is above a set engine speed, energizing time to a PTC type heater 42 to be a heater for auto choke is made to be performed by a pulse control of a transistor 47 by a microcomputer 46, external resistance for regulating voltageto the heater for auto choke conventionally used can be unnecessitated. When the auto choke is applied to an engine of a different characteristics, the application can be easily coped by changing an on-pulse width in the microcomputer 46 according to the characteristics of an applied engine.

Description

[0001] This application is a divisional application of the patent application whose application number is 01111365.0, the application date is March 14, 2001, and the invention name is "automatic choke control device". technical field [0002] The present invention relates to an automatic choke control device, and more particularly to an automatic choke control device capable of easily changing the energization time of a heater for an automatic choke. Background technique [0003] Among the carburetors of the vehicle, there is a carburetor equipped with an automatic choke valve, which automatically obtains good starting and warm-up operation according to the outside air temperature and the engine warm-up state. In the automatic choke, there is a heater for the automatic choke, which is provided integrally with the carburetor. [0004] The automatic choke equipped with a heater for the automatic choke applies a part of the voltage generated by the flywheel type permanent magne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M1/12
Inventor 若山浩史古贺雅裕
Owner HONDA MOTOR CO LTD
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