Cooling circuit of an internal combustion engine comprising a low-temperature radiator

US7406929B2 · kind B2 · utility

Assignee

• BEHR GMBH & CO. KG · DE

Inventors

• Klaus Hassdenteufel · Gerlingen, DE
• Stefan Rogg · Stuttgart, DE

Key dates

• Filing date: Jan 14, 2004
• Grant date: Aug 5, 2008
• Expiry date: Feb 10, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01P2060/045
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a cooling circuit of an internal combustion engine of motor vehicles, comprising a main cooling circuit that encompasses a section located upstream of the radiator, a main radiator, a radiator return path, a coolant pump, a main thermostat, and a bypass or short circuit which is disposed between the main thermostat and the coolant pump. Said cooling circuit further comprises a low-temperature circuit encompassing a low-temperature radiator, a low-temperature radiator return path, a valve unit, and an additional heat exchanger.