Throttle device

A throttle device includes a default mechanism. The default mechanism includes: a defining portion arranged on the body to define the default position; a first rotation body which rotates integrally with the valve shaft; a second rotation body which can rotate relative to the valve shaft and which e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Suzuki, Keigo, Moriya, Sho, Hiei, Masaki
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A throttle device includes a default mechanism. The default mechanism includes: a defining portion arranged on the body to define the default position; a first rotation body which rotates integrally with the valve shaft; a second rotation body which can rotate relative to the valve shaft and which engages with the defining portion to limit the rotation in a valve-closing direction; a first urging spring which is interposed between the first rotation body and the body and urges the first rotation body in the valve-closing direction; and a second urging spring which is interposed between the first rotation body and the second rotation body, and urges so as to draw the first rotation body in a valve-opening direction and draw the second rotation body in the valve-closing direction to engage the two with each other and to maintain the engagement during the non-operation of the drive source.