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Engine cooling device

a cooling device and engine technology, applied in the direction of engine cooling apparatus, liquid cooling, machines/engines, etc., can solve the problems of engine during driving high temperature, cooling liquid is stopped, etc., and achieve the effect of preventing the engine during driving

Inactive Publication Date: 2017-02-09
AISIN SEIKI KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is an engine cooling system that stops the engine from getting too hot while it drives. This is done by keeping a valve in the cooling system closed, which stops cooling water from flowing through a radiator and into the engine. This results in higher temperatures for the engine when the valve is opened, but it helps prevent damage to the engine caused by high temperatures.

Problems solved by technology

This causes an inconvenience that the passage of the coolant is stopped in the engine cooling system during the period when the electrically-operated pump is stopped.
Accordingly, since the engine is hardly cooled in the period when the electrically-operated pump is stopped, the engine during driving may become high in temperature.

Method used

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Embodiment Construction

[0022]An embodiment of the present invention will be described hereinbelow with reference to the drawings.

[0023]First, the configuration of an engine cooling device 100 according to one embodiment of the present invention will be described with reference to FIGS. 1 to 4.

[0024]The engine cooling device 100 in one embodiment of the present invention is mounted on a vehicle which is not illustrated. The engine cooling device 100 supplies cooling water (coolant) to an engine 101 mounted on the vehicle to cool the engine 101, cools the cooling water warmed with heat of the engine 101 or the like by using a radiator 2, and recovers heat from the warmed cooling water using a heater core 3 or the like. The cooling water refers to liquid such as water that is used to cool the engine 101.

[0025]As illustrated in FIG. 1, the engine cooling device 100 includes an electric water pump (electric WP) 1, a radiator 2, a heater core 3, an oil cooler 4, a thermostat 5, and a flow shutting valve (FSV) 6...

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Abstract

An engine cooling device includes: a water pump; a radiator; a first cooling water channel going through the radiator; a second cooling water channel not going through the radiator; a solenoid valve provided in the second cooling water channel; and a control unit. The control unit moves, at a time of closing the solenoid valve, a valve body in a valve closing direction while the cooling water is passing at a decreased flow rate so as to close the solenoid valve to cut off passage of the cooling water in the second cooling water channel.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2015-153962 filed on Aug. 4, 2015 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an engine cooling device.[0004]2. Description of Related Art[0005]An engine cooling device including a water pump and a solenoid valve is known (see, for example, Japanese Patent Application Publication No. 2013-108398).[0006]The engine cooling system disclosed in JP 2013-108398 A includes: an electrically-operated pump that discharges coolant for cooling an engine; a first channel and a second channel that pass cooling water to the engine through a radiator; a third channel that passes the cooling water to the engine without going through the radiator; a valve provided in the third channel to switch presence and absence of passage of the coolant in the third channel; and ...

Claims

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Application Information

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IPC IPC(8): F01P7/16F01P5/12F01P3/20
CPCF01P7/16F01P3/20F01P2007/146F01P2005/125F01P5/12F01P7/14F01P7/164F01P7/165
Inventor YOSHIDA, MASAZUMIHIRATSUKA, YUTAKOMURO, KENICHISASAKI, RYUSUKETAKAGI, NOBORU
Owner AISIN SEIKI KK