Exhaust gas turbocharger

US10030518B2 · kind B2 · utility

Assignee

• BOSCH MAHLE TURBO SYSTEMS GMBH & GO. KG · DE

Inventors

• Dirk Lummer · Ludwigsburg, DE
• Martin Kropp · Ditzingen, DE

Key dates

• Filing date: May 17, 2016
• Grant date: Jul 24, 2018
• Expiry date: Aug 18, 2036

Classification

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

Abstract

An exhaust gas turbocharger may include a turbine housing and a turbine. The turbine housing may include at least two exhaust gas channels and a partition. A wastegate valve may be arranged such that the at least two exhaust gas channels are connectable to a bypass duct bypassing the turbine. The wastegate valve may include a hollow valve body and a valve seat interacting with the valve body. The wastegate valve may be configured such that at least one of ram supercharging and pulse supercharging is performed. A connecting opening may be arranged between the at least two exhaust-gas channels. The valve body may have a base region configured to facilitate a discharging of an exhaust-gas steam into the bypass duct and/or an overflowing of one exhaust gas channel through the connecting opening into the other exhaust-gas channel.