Disclosed is a device for cooling an internal combustion engine in which circulation of cooling water is halted until the cooling water reaches a predetermined temperature, wherein decline in the durability of a radiator, which is caused by thermal strain that occurs when circulation of the cooling water is restarted and the cooling water is introduced into the radiator, is suppressed. An internal combustion engine ( 10 ) comprises an electric pump ( 23 ), a water temperature sensor ( 92 ), a radiator ( 21 ), and a thermostat ( 22 ). The water temperature sensor ( 92 ) detects a cooling water temperature (THW). The radiator ( 21 ) is capable of circulating the cooling water between the radiator ( 21 ) and an engine cooling system ( 13 ). If the cooling water temperature (THW) is equal to or greater than a valve opening temperature (TZ), the thermostat ( 22 ) opens and the cooling water is introduced into the radiator ( 21 ). An electronic control device ( 91 ) performs control in such a way that the discharge pressure of the cooling water is increased by the electric pump ( 23 ) before the thermostat ( 22 ) opens and cooling water is introduced into the radiator ( 21 ).

Claims

9 · 2 independent · depth 3

9 granted claims

›1.independentAn engine cooling device comprising:na pump configured to change discharge performance of cooling water supplied to an engine cooling system without d…+6

›2.↳ 1The engine cooling device according to claim 1, whereinnafter the detected cooling water temperature rises and reaches the predetermined temperature a…d2+2

›5.↳ 1The engine cooling device according to claim 1, further comprising an estimating unit configured to estimate an ambient temperature of the heat exchan…d2

›6.↳ 1The engine cooling device according to claim 1, further comprising an estimating unit configured to estimate an ambient temperature of the heat exchan…d2

›7.↳ 1The engine cooling device according to claim 1, whereinna vehicle-mounted internal combustion engine is a target to be applied, andthe heat exchanger …d2

›8.independentAn engine cooling device comprising:na pump configured to change discharge performance of cooling water supplied to an engine cooling system without d…+1

Classifications

5 codes

IPC · International Patent Classification

Section F — Mechanical engineering; lighting; heating; weapons

F01P7/00
F01P7/14

USPC · US Patent Classification

123/41.2123/41.44123/41.1

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Pendency

4.3 y

1,568 days filing → grant

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Examiner

Noah Kamen

art unit 3783 · TC 3700

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Citations: 12 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20120266828 A1	25 Oct 2012

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