Turbine with fluidically-controlled valve and swirler with a bleed hole

US8413451B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventor

• Peter Senior · Kraainem, BE

Key dates

• Filing date: Jul 14, 2009
• Grant date: Apr 9, 2013
• Expiry date: Feb 7, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/206
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fluidically-controlled valve is provided. The fluidically-controlled valve includes a main flow channel with a main flow entrance, a flow exit and a constricted channel section located between the main flow entrance and the flow exit. The fluidically-controlled valve also includes a control flow channel including a jet forming control entrance, a first branch channel, a second branch channel, a common channel section, and a convex channel wall. The common channel section follows the control entrance, the first branch channel emerges from the common channel section and leads to the main flow entrance, the second branch channel emerges from the common channel section and leads to the constricted channel section, and the convex channel wall extends from the common channel section into the first branch channel. The fluidically-controlled valve can be used in bypasses present in turbines or in swirlers of gas turbine combustors.