Patent · US Expired

Coolant circuit for an internal combustion engine and method of making and using same

US6786183B2 · kind B2 · utility

12Cited by

11References

25Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Michael Hoelle · Lambach, DE
Roland Kemmler · Stuttgart, DE
Erhard Rau · Weilheim, DE
Hubert Schnuepke · Stuttgart, DE

Key dates

Filing date	Nov 8, 2002
Grant date	Sep 7, 2004
Priority date	—
Expiry date	Nov 8, 2022

Classification

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

Abstract

A coolant circuit is provided for an internal combustion engine, with a coolant radiator, at least one mechanical coolant pump and at least one electrical coolant pump for a cooling circuit having a coolant inflow and for a heating circuit having a coolant return, in each case with at least one heat exchanger, the mechanical coolant pump and/or the electrical coolant pump being assigned to the heating and/or cooling circuit, and the mechanical pump being capable of being cut in and cut out or of being throttled.

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