Axial flow engine guide vane adjusting device

US4836746A · kind A · utility

Assignee

• Man Gutehoffnungshutte Aktiengesellschaft · DE

Inventors

• Emund Owsianny · Oberhausen, DE
• Wilfried Wengorz · Castrop-Rauxel, DE
• Emil Aschenbruck · Duisburg, DE

Key dates

• Filing date: Mar 31, 1988
• Grant date: Jun 6, 1989
• Expiry date: Mar 31, 2008

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D17/162
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The shafts of guide vanes of an axial-flow engine, in particular, a combustion turbine, are supported angle-adjustably in an annular guide vane carrier and are spring-loaded and vibration-damped in their axis directions. An adjustment ring concentric to the flow channel is supported play-free and with low-friction engagement in a groove of a carrier ring by radial and axial rolls. Levers wedged on the guide vane shafts are pivoted by pins in a cylinder bolt, which, in turn, are supported rotatably and displaceably in laterally open bores of the adjustment ring and axis-parallel to it. This permits a largely play-free transfer of the adjustment motion onto the guide vane shafts without point or line contact. The guide vane carrier closes off the groove of the carrier ring so, that the entire mechanism is protected against dust.