System for preheating a water-cooled vehicle engine and for heating the interior of the vehicle

US4010895A · kind A · utility

Assignee

• J. Eberspacher

Inventors

• Siegfried Kofink
• Wolfgang Rich · Jeffery Road, DE
• Herbert Langen · Altbach, DE

Key dates

• Filing date: Nov 20, 1974
• Grant date: Mar 8, 1977
• Expiry date: Nov 20, 1994

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01P2060/08
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In the cooling system of a water-cooled engine for a vehicle, a heat exchanger is arranged for heating the interior of the vehicle using the heat extracted from the water which cools the engine. To provide rapid heating of the interior of the vehicle and preheating of the engine, a heating system is incorporated into the cooling system for selectively heating a portion of the cooling water to a desired temperature and then passing the heated water into the heat exchanger for heating the interior of the vehicle. After flowing through the heat exchanger, the heated water is passed through the water-cooled engine to preheat it.