Variable geometry turbine

A variable geometry turbine having a turbine wheel (5), an inlet passageway (9), a movable wall member (11) being moveable axially to vary the width of the inlet passageway, an annular seal (127) being mounted to one of the movable wall member (11) and an adjacent housing member (103) to provide a s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PARKER JOHN F, HILL LISA JANE, BYWATER JOHN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A variable geometry turbine having a turbine wheel (5), an inlet passageway (9), a movable wall member (11) being moveable axially to vary the width of the inlet passageway, an annular seal (127) being mounted to one of the movable wall member (11) and an adjacent housing member (103) to provide a seal between adjacent surfaces of the movable wall member (11) and housing member (103) respectively. A bypass passage (150) is provided in the other of the movable wall member (11) and housing member (103). The bypass passage (150) extends from an inlet bypass port (151) to an outlet bypass port (152). The inlet and outlet bypass ports (151, 152) are axially spaced from each other and provided in the adjacent surface of the other of the movable wall member (11) and housing member (103), and are arranged such that as the movable wall member (11) moves axially, the annular seal (127) moves axially relative to the inlet and outlet bypass ports (151, 152), so as to vary the extent of flow that may pass from a region of