Patent · US Expired

Method for adjusting a coolant flow by means of a heating cut-off valve

US7421984B2 · kind B2 · utility

4Cited by

6References

5Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Hans-Juergen Braun · Ueberstorf, CH
Ralf Körber · Remscheid, DE
Michael Timmann · Pforzheim, DE
Jochen Weeber · Echterdingen, DE

Key dates

Filing date	Jul 31, 2004
Grant date	Sep 9, 2008
Priority date	—
Expiry date	Nov 30, 2024

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01P2060/08
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for actuating the valves in the three-way thermostat and in the heating cut-off valve of a cooling system. The valve setting in the cooling system is in this case selected such that during the warm-up phase of the engine, until the latter has reached its operating temperature, the coolant in the cooling ducts is brought to rest until the coolant temperature exceeds a predefined reference value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.