HANDHELD ENGINE - DRIVEN WORKING MACHINE

An engine-driven working machine (10) according to the present invention has a controller (14), which varies a control value of a solenoid valve (20) so as to decrease or increase an opening degree of the solenoid valve (20) when a rotating speed of an engine (12) is within a predetermined high rota...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MIYAKI, HIROYUKI, OTSUJI, TAKAMASA, MATSUMOTO, KOSUKE, YAMAGUCHI, SHIRO, YAMAZAKI, AKIRA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	An engine-driven working machine (10) according to the present invention has a controller (14), which varies a control value of a solenoid valve (20) so as to decrease or increase an opening degree of the solenoid valve (20) when a rotating speed of an engine (12) is within a predetermined high rotating speed range (R1) and the rotating speed of the engine (12) is lower or higher than a predetermined rotating speed (R2), respectively. When the control value of the solenoid valve (20) is varied so as to decrease the opening degree of the solenoid valve (20) and corresponds to a predetermined opening degree larger than a fully-closed state, the control value is set to a limitation value (VL).