Exhaust Gas Heat Exchanger and Method

摘要

A heat exchanger that transfers heat from an exhaust gas flow to a liquid coolant includes a first heat exchange section and a second heat exchange section located adjacent the first heat exchange section. The first heat exchange section is located within a first housing that at least partially encloses a first fluid volume. The second heat exchange section is located within a second housing that at least partially encloses a second fluid volume. A first plurality of heat exchange tubes traverses the first heat exchange section, and a second plurality of heat exchange tubes traverses the second heat exchange section. An exhaust gas flow path of the heat exchanger includes the first fluid volume and the interiors of the second plurality of heat exchange tubes. A coolant flow path of the heat exchanger includes the second fluid volume and the interiors of the first plurality of heat exchange tubes.

主权项

1. A heat exchanger to transfer heat from an exhaust gas flow to a liquid coolant, comprising:
a first heat exchange section located within a first housing, the first housing at least partially enclosing a first fluid volume; a second heat exchange section located within a second housing, the second housing at least partially enclosing a second fluid volume, the second heat exchange section located adjacent to the first heat exchange section; a first plurality of heat exchange tubes traversing the first heat exchange section; a second plurality of heat exchange tubes traversing the second heat exchange section; an exhaust gas flow path comprising the first fluid volume and the interiors of the second plurality of heat exchange tubes; and a coolant flow path comprising the second fluid volume and the interiors of the first plurality of heat exchange tubes.