Honeywell International Inc.

Roland Dilley

Richard Paul Beldam

Steven M Ayres

Glenn F Thompson

Keith Agee

Kristian N Dullack

Sara R Chastain

Michael A Moyer

Freidoon Rastegar

An exemplary heat exchanger includes a heat exchanger core having a core side fluid space and a cover plate and a substantially U-shaped wall fitted at one end with an inlet header and, at an opposing end, with an outlet header, which in combination with the cover plate, define a shell side fluid space. In this example, the cover plate forms two seals with two opposing sides of the U-shaped wall, forms a seal with the inlet header and forms a seal with the outlet header. Such a heat exchange may be suitable for use as an EGR cooler. Other exemplary devices, methods and systems are disclosed.

Heat exchanger

An exemplary heat exchanger, suitable for use in exhaust gas recirculation to cool exhaust gas, includes a cover plate having a plurality of openings, an upper plate having a plurality of openings, a lower plate having a plurality of openings and a bottom plate where seals exist between various plates to form at least one gas flow space and at least one liquid flow space. Various other exemplary heat exchanger configurations are also disclosed.

Heat exchangers, constructed in accordance with principles of this invention, comprise a plurality of first passages, for transporting a first fluid or gas therethrough, and one or more second passages for transporting a second fluid or gas therethrough. The second passages are positioned adjacent to the first passages to permit a desired transfer of thermal energy from the first passages to the second passages. At least one manifold is placed in communication with one of the first or second passages. The manifold includes an opening disposed therethrough for receiving or dispensing the first or second fluid or gas to or from the first or second passages. The heat exchanger includes a flow director disposed therein for diverting or distributing the flow of first or second fluid or gas in a manner different from a natural fluid or gas flow within the heat exchanger. The flow director can be provided as an integral part of the heat exchanger itself, or can be provided as a separate element within the heat exchanger.

Heat exchanger with flow director

An EGR cooler comprises a cooling core having a plurality of passages for accommodating the flow of exhaust gas therethrough, an exhaust gas inlet chamber connected to the cooling core, for receiving exhaust gas from an internal combustion engine and passing the exhaust gas to the cooling core, and an exhaust gas outlet chamber separate from the exhaust gas inlet chamber and connected to the cooling core for receiving exhaust gas from the core. The cooler further includes means for permitting the controlled passage of exhaust gas from the exhaust gas inlet chamber to the exhaust gas outlet chamber without passing through the cooling core, said means being positioned upstream from the exhaust gas outlet chamber. Configured in this manner, the EGR cooler permits the mixing of cooled exhaust gas with uncooled exhaust to provide a desired exiting gas temperature that is below an exhaust gas dew point.

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Lomita, CA, United States of America

Roland Dilley