公开(公告)号：US06460520B1

公开(公告)日：2002-10-08

申请号：US09696408

申请日：2000-10-25

申请人： Raymond Challis

发明人： Raymond Challis

IPC分类号： F02M2507

CPC分类号： F28F1/08 ,  F02M26/12 ,  F02M26/32 ,  F28D7/16 ,  F28D21/0003 ,  F28F2210/06 ,  F28F2265/26

摘要： An exhaust gas re-circulation system provides for intake of exhaust gases from a first end 206 into one of a plurality of corrugated inner tubes 204 housed within an outer tube 200. Corrugations in said inner tube 204 provide for an increased surface area for heat exchange with a surrounding coolant medium and for decreased velocity of flow of exhaust gas increasing the density of charge of exhaust gas returned to a combustion chamber of an associated internal combustion engine by an inlet manifold where said exhaust gas re-circulation system connects to said inlet manifold at a second end 207. Said outer tube provides for inlet 203 and outlet 202 of coolant medium. Said outer tube further comprises corrugated portions to withstand vibration/expansion. Said inner and outer tubes are manufactured from thin wall metal tubes. Exhaust gas cooling occurs over the entire path length of the exhaust gas re-circulation system and is enhanced at bends 201 in the exhaust gas re-circulation system by formation of turbulent flow of the exhaust gas within said inner members 204 thus providing for increased heat exchange by occupying all of the available space within said corrugated inner members 204. No separate cooler unit is required and therefore the exhaust gas re-circulation system may be bent to be packaged around an internal combustion engine to provide for economy of space.

摘要翻译： 排气再循环系统提供将废气从第一端206进入容纳在外管200内的多个波纹内管204中的一个。所述内管204中的波纹提供用于热交换的增加的表面积 具有周围的冷却剂介质并且用于降低排气流速，从而通过入口歧管增加返回到相关内燃机的燃烧室的废气的进料密度，其中所述废气再循环系统连接到所述入口歧管 在第二端207.所述外管提供冷却剂介质的入口203和出口202。 所述外管还包括能够承受振动/膨胀的波纹部分。 所述内管和外管由薄壁金属管制成。 在废气再循环系统的整个路径长度上发生排气冷却，并且在废气再循环系统的弯曲部201处增强，这是由于在所述内部构件204内形成排气的湍流从而提供增加的热量 通过占据所述波纹内部构件204内的所有可用空间进行更换。不需要单独的冷却器单元，因此废气再循环系统可以被弯曲以围绕内燃机包装以提供空间的经济性。

公开(公告)号：US20060032612A1

公开(公告)日：2006-02-16

申请号：US11199454

申请日：2005-08-08

申请人： Ian Craig ,  Raymond Challis ,  Charles Penny ,  Paul Downs ,  Mark Hacker

发明人： Ian Craig ,  Raymond Challis ,  Charles Penny ,  Paul Downs ,  Mark Hacker

IPC分类号： F28F27/02

CPC分类号： F28F1/08 ,  F02M26/25 ,  F02M26/32 ,  F28D7/103 ,  F28F21/083 ,  F28F27/02 ,  F28F2240/00 ,  F28F2250/06 ,  F28F2265/26

摘要： There is provided a gas heat exchanger 101 comprising a coolant conduit 102 having a coolant inlet 103 and a coolant outlet 104, a gas cooling conduit 201, and a gas bypass conduit 203. At least a portion of the gas cooling conduit 201 is disposed between at least a portion of the coolant conduit 102 and a portion of the bypass conduit 203. During a first mode of operation, the gas cooling conduit 201 is configured to carry gas. During a second mode of operation, the bypass conduit 203 is configured to carry gas and the gas cooling conduit 201 is configured to reduce a heat exchange between the coolant conduit 102 and the bypass conduit 203.

摘要翻译： 提供了一种气体热交换器101，其包括具有冷却剂入口103和冷却剂出口104的冷却剂导管102，气体冷却管道201和气体旁通管道203.气体冷却管道201的至少一部分设置在 冷却剂管道102的至少一部分和旁路管道203的一部分。在第一操作模式期间，气体冷却管道201构造成承载气体。 在第二操作模式期间，旁路管道203构造成承载气体，并且气体冷却管道201构造成减少冷却剂管道102和旁路管道203之间的热交换。