Method and apparatus for moderating the temperature of an internal combustion engine of a motor vehicle

a technology for internal combustion engines and motor vehicles, which is applied in the direction of signal processing for cooling apparatuses, liquid cooling, coolant flow control, etc., can solve the problems of inability to achieve the effect of preheating an internal combustion engine, and the properties of the internal combustion engine are relatively poor, and the methods proposed in the past for this purpose, particularly latent heat exchangers or heat insulated reservoirs built into the cooling system, have not been considered practical
US20050229873A1Inactive Publication Date: 2005-10-20BEHR THERMOT TRONIK
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Patent Information

Authority / Receiving Office
US ¡ United States
Current Assignee / Owner
BEHR THERMOT TRONIK
Publication Date
2005-10-20
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

In an internal combustion engine of a motor vehicle, in order to shorten the cold-starting phase, it is provided that upon a shut off of the engine, essentially the entire amount of coolant is pumped out of a cooling system into a normally empty heat insulated reservoir, from which the coolant is fed back into the cooling system again upon subsequent start up of the engine.
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Description

FIELD OF THE PRESENT INVENTION

[0001] The invention relates to a method for tempering an internal combustion engine of a motor vehicle, to which a cooling system with a coolant circulation for liquid coolant is assigned, and to a cooling system for the internal combustion engine. BACKGROUND OF THE PRESENT INVENTION

[0002] After a cold start, until it reaches its operating temperature, an internal combustion engine has relatively poor properties, such as the release of major quantities of pollutants and high friction and hence wear. The deficiencies of a cold start can be avoided by adequately preheating the engine. The means proposed in the past for this purpose, particularly latent heat exchangers or heat insulated reservoirs built into the cooling systems, have so far not been deemed practical.

[0003] German Patent Disclosure DE 1451890, discloses the use of a pressure equalizing or venting tank as a reservoir, which communicates with the intake side of a coolant pump via a bypass...

Claims

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