I.C engine starter

Abstract

Between the first pulley 22 fitted on the output shaft of the direct current motor 20 for driving the internal combustion engine 100 and the second pulley 11 fitted on the crankshaft of the internal combustion engine, the belt 40, which is power transmission means to transmit the driving power of the direct current motor to the crankshaft of the internal combustion engine, is installed. Between the output shaft 21 of the direct current motor and the first pulley 22, the lift off type one-way cam clutch 23, wherein the cam lifts off by the centrifugal force causing release of the power transmission engagement between the inner element and the outer element, is provided.

Description

technical field [0001] The present invention relates to an internal combustion engine starting device for starting an internal combustion engine mounted on a vehicle driven by an internal combustion engine, and more particularly to an internal combustion engine starting device suitable for use in an idling stop system that temporarily stops the internal combustion engine and then restarts it when the vehicle stops at an intersection or the like. Background technique [0002] Recently, a vehicle employing an idling stop system that temporarily stops the internal combustion engine when stopping at an intersection or the like and restarts the internal combustion engine when starting thereafter has been put into practical use. However, currently, vehicles using an idling stop system are limited to those in which an internal combustion engine and an electric motor are used in combination, such as a hybrid vehicle. Among them, electric motors used in hybrid vehicles and the like a...

AI Technical Summary

Problems solved by technology

However, in the idle stop system, when the internal combustion engine is stopped by temporarily stopping the signal, for example, the internal combustion engine is restarted by depressing the idle pedal, etc., so it is difficult to say that the restart is the driver's intention. The rattling noise is perceived by the driver as noise

In addition, since the number of restarts of the idle stop system is very high, it is further felt as noise, which becomes a problem when the idle stop system is adopted.

[0007] 2) In addition, in the case of using another motor for starting, when the internal combustion engine is started, the clutch and the electric motor (DC motor) that are constantly connected to the internal combustion engine by the belt are driven by the internal combustion engine at high speed. The service life of the device such as the life of the brush or the life of the brush of the motor becomes a problem

That is, a one-way overrunning clutch that transmits the driving force from the electric motor in one direction is used between the electric motor and the internal combustion engine. The structure of the torque, so the clutch and the motor are rotated by the internal combustion engine, so there is a problem that the life of the device is reduced

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