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    • 9. 发明申请
    • COOLING DEVICE FOR AN ENGINE EXHAUST GAS RECIRCULATION CIRCUIT
    • 用于发动机排气回收电路的冷却装置
    • US20130220290A1
    • 2013-08-29
    • US13637609
    • 2011-03-28
    • Laurent OdillardYoann LemarchandOlivier Latroy
    • Laurent OdillardYoann LemarchandOlivier Latroy
    • F02M25/07
    • F02M26/13F01P7/165F02M26/22F02M26/28
    • The invention relates to a cooling device for an engine (1) exhaust gas recirculation circuit, notably that of a motor vehicle, said circuit comprising a valve (2) for controlling the circulation of said gas, said device comprising a heat exchanger (3), known as the EGR exchanger, intended to allow an exchange of heat between the exhaust gases passing through said recirculation circuit and a coolant fluid, and means (4) of cooling said valve. According to the invention, said device comprises a cooling loop (5), known as a high-temperature cooling loop and configured so that said valve cooling means (4) have a first fluid passing through them, and a second cooling loop (12), known as a low-temperature cooling loop and configured so that the EGR exchanger (3) has passing through it a second fluid at a temperature lower than that of the first fluid. The invention also relates to an assembly of an exhaust gas recirculation circuit and of such a cooling device, and to a system for supplying an engine, notably a supercharged diesel engine, with charge gases and comprising an engine air supply circuit and such an assembly.
    • 本发明涉及一种用于发动机(1)排气再循环回路的冷却装置,特别是机动车辆的冷却装置,所述回路包括用于控制所述气体的循环的阀(2),所述装置包括热交换器(3) 被称为EGR交换器,旨在允许通过所述再循环回路的废气与冷却剂流体之间的热交换,以及冷却所述阀的装置(4)。 根据本发明,所述装置包括称为高温冷却回路的冷却回路(5),并且构造成使得所述阀冷却装置(4)具有通过它们的第一流体和第二冷却回路(12) 被称为低温冷却回路,并且构造成使得EGR交换器(3)在比第一流体的温度低的温度下通过第二流体。 本发明还涉及排气再循环回路和这种冷却装置的组件,以及用于向发动机,特别是增压柴油发动机提供充气的系统并且包括发动机空气供应回路和这种组件的系统。