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Cooling systems

A cooling system, coolant technology, used in liquid cooling, engine cooling, coolant flow control, etc.

Active Publication Date: 2011-05-11
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This extended time has detrimental effects on fuel economy and engine wear

Method used

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  • Cooling systems
  • Cooling systems
  • Cooling systems

Examples

Experimental program
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Embodiment Construction

[0015] refer to figure 1 , the water pump 1 supplies coolant to the internal combustion engine 2 through the pipeline 3 , and the pipeline 3 connects the pump outlet to the engine 2 .

[0016] The coolant is returned to the inlet side of the pump 2 through a return line including three branches. The first branch 4 includes an electronically controllable bypass valve 5 . The second branch 6 includes a radiator 7 and a thermostat 8 . The third branch 9 comprises the small radiator 10 , the engine oil cooler 11 and the electronically controllable heating / degassing valve 12 and via a side branch 14 upstream of the heating / degassing valve 12 and downstream of the oil cooler 11 and the small radiator 10 Connected degas box 13.

[0017] A temperature sensor 15 is provided on the engine 2 to monitor the temperature of the coolant as it leaves the engine 2 .

[0018] An electronic control unit (ECU) 16 is electrically connected with the bypass valve 5 and the heating / degassing valv...

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Abstract

A cooling system for a vehicle having an internal combustion engine permits rapid warm-up of the engine by the use of two electrically-operated valves in addition to a conventional thermostat. A bypass valve and a heater valve both remain closed at low coolant temperatures and engine speeds, thereby inhibiting coolant flow through the engine. A control unit opens the bypass valve to prevent cavitation in the water pump if engine speed and / or load exceeds a certain value. The heater valve is opened when a threshold engine coolant temperature is reached permitting warming of the heater matrix.

Description

technical field [0001] The invention relates to a cooling system for a motor vehicle with an internal combustion engine. Background technique [0002] As the fuel efficiency of internal combustion engines increases, the waste heat generated decreases and, therefore, the time it takes them to reach optimum operating temperature increases. This extended time has adverse effects on fuel economy and engine wear. [0003] Therefore, there is a need for a cooling system that reduces the time required for a cold engine to reach its optimum operating temperature. Contents of the invention [0004] Thus, in a first aspect, the invention comprises a cooling system for a motor vehicle having an internal combustion engine, said cooling system comprising a pump supplying coolant to the engine, an outflow line connecting the pump outlet to the engine, and connecting the engine to the pump inlet wherein the return line includes three branches: a first branch including a first valve; a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P3/00F01P7/16F01P11/02
CPCF01P3/12F01P7/165F01P2060/08F01P11/028
Inventor J·莫法特C·J·莱克
Owner FORD GLOBAL TECH LLC
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