Turbocharger arrangement for an internal combustion engine

US9038382B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Ludwig Stump · Cologne, DE
• Bernd Schumacher · Niederalteich, DE
• Marco Marceno · Hagen, DE
• Jan Linsel · Cologne, DE
• Kay Hohenboeken · Cologne, DE
• Oliver Berkemeier · Bensberg, DE
• Jens Wojahn · Bensberg, DE
• Klemens Grieser · Langenfeld, DE

Key dates

• Filing date: Apr 22, 2013
• Grant date: May 26, 2015
• Expiry date: Apr 22, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2220/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A turbocharger arrangement in an internal combustion engine is provided. The turbocharger arrangement includes a turbocharger housing surrounding a sealed inner space and a shaft extending through the turbocharger housing. The turbocharger arrangement further includes a turbine wheel arranged on the shaft and driving a compressor unit, a bearing arrangement mounting the shaft in the turbocharger housing, an oil supply device lubricating the bearing arrangement, and a pressure changing unit in fluidic communication with the sealed inner space configured to adjust the pressure in the sealed inner space based on engine operating conditions.