Patent ID: 6161528
Filing Date: 2000-12-19
Classification: F02M,F28D

Abstract:
A recirculating exhaust gas cooling device comprising:an exhaust gas recirculation passage through which a part of exhaust gas of an engine recirculates, to enter a cylinder of the engine along with intake air;a cooling fluid passage through which a cooling fluid passes;a housing in which said exhaust gas recirculation passage and said cooling fluid passage are located next to each other, to extend in parallel with each other;a heat-exchange core member provided in said housing such that the core member is rotatable about a rotational axis, said core member defining a multiplicity of passages that extend in substantially parallel with the rotational axis of the core member, wherein said multiplicity of passages can be rotated between a position within the exhaust gas recirculation passage and a position within the cooling fluid passage; anda rotating mechanism that rotates said core member.