Exhaust flow valve for twin-scroll turbine and operating methods thereof

US10006342B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Vanco Smiljanovski · Bedburg, DE
• Helmut Matthias Kindl · Aachen, DE
• Joerg Kemmerling · Monschau, DE
• Andreas Kuske · Geulle, NL
• Franz Arnd Sommerhoff · Aachen, DE
• Jens Dunstheimer
• Ludwig Stump · Cologne, DE

Key dates

• Filing date: Jan 30, 2015
• Grant date: Jun 26, 2018
• Expiry date: Dec 1, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A supercharged engine and operating methods thereof are described for adjusting an extent of fluidic coupling between separate channels of a two-channel turbine. In one particular example, a longitudinally displaceable flow transfer valve is arranged for movement lateral to the exhaust airflow that provides coupling between the channels, a position of the flow transfer valve within a flow transfer duct controlling the extent of fluidic coupling in addition to the rate of exhaust-gas flow through a blow-off line that conducts airflow past a rotor of the two-channel turbine. In this way, the flow transfer valve according to the present disclosure advantageously allows for adjusting a mode of supercharging based on one or more engine conditions to control the extent of fluidic coupling using a simplified valve arrangement.