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    • 8. 发明公开
    • COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE
    • KÜHLVORRICHTUNGFÜREINEN VERBRENNUNGSMOTOR
    • EP2505806A1
    • 2012-10-03
    • EP09846311.0
    • 2009-11-26
    • Toyota Jidosha Kabushiki Kaisha
    • OKADA, Yoshihiro
    • F01P3/02F01P3/14F01P7/16F02B37/00F02B37/02
    • F01P3/12F01N3/043F01N13/102F01P3/02F01P3/14F01P7/16F01P2003/024F02B37/18F02D13/0257F02F1/40Y02T10/144Y02T10/18Y02T10/20
    • An object of the present invention is to ensure appropriate cooling amounts for two exhaust ports, respectively, in an internal combustion engine in which an exhaust port that communicates with an inlet of a turbine of a turbocharger and an exhaust port that does not communicate with the inlet of the turbine are formed in a cylinder head. A cooling apparatus for an internal combustion engine of the present invention has a first exhaust port and a second exhaust port formed in a cylinder head of the internal combustion engine. The first exhaust port communicates with an inlet of a turbine of the turbocharger. The second exhaust port does not communicate with the inlet of the turbine. Each cylinder of the internal combustion engine includes a first exhaust valve that communicates with the first exhaust port and a second exhaust valve that communicates with the second exhaust port. A first cooling water passage through which cooling water that cools the first exhaust port passes and a second cooling water passage through which cooling water that cools the second exhaust port passes are formed in the cylinder head.
    • 本发明的一个目的是确保在内燃机中分别适用于两个排气口的冷却量,在内燃机中,与涡轮增压器的涡轮机的入口连通的排气口和不与其连通的排气口 涡轮机的入口形成在气缸盖中。 本发明的内燃机的冷却装置具有形成在内燃机的气缸盖中的第一排气口和第二排气口。 第一排气口与涡轮增压器的涡轮机的入口连通。 第二排气口不与涡轮机的入口连通。 内燃机的每个气缸包括与第一排气口连通的第一排气阀和与第二排气口连通的第二排气阀。 冷却第一排气口的冷却水通过的第一冷却水通道和冷却第二排气口的冷却水通过的第二冷却水通道形成在气缸盖中。