Method and control unit for operating a line circuit for waste heat utilization of an internal combustion engine

US10006312B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gregory Rewers · Schwieberdingen, DE
• Nadja Eisenmenger · Stuttgart, DE
• Achim Brenk · Remchingen, DE
• Dieter Seher · Ilsfeld, DE
• Hans-Christoph Magel · Pfullingen, DE
• Andreas Wengert · Mutlangen, DE

Key dates

• Filing date: Oct 12, 2012
• Grant date: Jun 26, 2018
• Expiry date: Jul 10, 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 method for operating a line circuit (4) for waste heat utilization of an internal combustion engine (2), and a control unit (1). A feed pump (6), at least one heat exchanger (8), an expansion machine (10), a condenser (12) and a control unit (1) are situated in the line circuit (4). The control unit (1) calculates a time period which is required until individual components or all the components of the line circuit (4) have reached a predefined temperature, in order to start up the line circuit (4) at least partially.