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

Inactive Publication Date: 2005-10-20
BEHR THERMOT TRONIK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] The object of the invention is to enable preheating of an internal combustion engin

Problems solved by technology

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

Method used

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

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Embodiment Construction

[0022] The internal combustion engine 10 shown in FIG. 1 is located with a radiator 11 in a cooling system. A pump 12 pumps coolant to the engine 10 via a cooling system conduit 13. The coolant leaving the engine 10 flows to the inlet to the radiator 11 via a conduit 14. A bypass conduit 15 branches off from the conduit 14 and leads to a thermostat valve 16, through which the coolant, arriving from the engine 10, can be aspirated directly by the coolant pump 12 via a conduit 17. When the coolant is cold, the thermostat valve 16 keeps the communication open between the bypass conduit 15 and the conduit 17 that leads to the coolant pump 12, so that the coolant leaving the engine is returned directly to the engine 10 without passing through the radiator 11.

[0023] A conduit 18, which coming from the radiator 11 is connected to the thermostat valve 16. As soon as the coolant flowing in via the bypass conduit 15 has reached a predetermined temperature, the thermostat valve 16 begins to b...

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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.

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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Application Information

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IPC IPC(8): F01P5/10F01P3/20F01P5/12F01P7/14F01P7/16F01P11/20F02N19/10
CPCF01P11/20F01P2005/105F01P2005/125F01P2007/146F02N19/10F01P2023/00F01P2060/04F01P2060/045F01P2060/08F01P2011/205
Inventor WILLERS, EIKE
Owner BEHR THERMOT TRONIK
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