ENGINE COOLING APPARATUS

Title:

ENGINE COOLING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2018/155499

Kind Code:

A1

Abstract:

The present invention provides an engine cooling apparatus with which it is possible to prevent a decrease in the reliability of a cylinder head of an engine during an engine-cooling operation. This engine cooling apparatus is provided with an in-engine cooling water passage 10, a heater core cooling water passage 12, and a radiator cooling water passage 14, and a switching valve 20 is provided to switch these cooling water passages 10, 12, 14. The switching valve 20 switches from the in-engine cooling water passage 10 to the heater core cooling water passage 12 when the surrounding temperature of an exhaust valve is a high temperature at a value greater than, e.g., 150ºC, even when the temperature of the cooling water of the engine is, e.g., 50ºC or less.

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Inventors:

FUJITA TAKAYOSHI (JP)
NISHIO TAKAFUMI (JP)
MIYAMOTO KOUICHI (JP)
TAKAHATA TATSUYA (JP)
NAKAHARA YASUSHI (JP)
NODA AKIHIRO (JP)

Application Number:

PCT/JP2018/006253

Publication Date:

August 30, 2018

Filing Date:

February 21, 2018

Export Citation:

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Assignee:

MAZDA MOTOR (JP)

International Classes:

F01P7/16; F01P3/20

Foreign References:

JP2014181654A	2014-09-29
JPS549240U	1979-01-22
JP2005530076A	2005-10-06
JP2006328962A	2006-12-07
JP2009529110A	2009-08-13
JPH1182014A	1999-03-26

Other References: