Patent ID: 7011080

Claim:
A single charge air cooler for a turbocharged internal combustion engine that employs exhaust gas recirculation, said single change air cooler comprising: a charge air passage for accepting a mix of pressurized air from the turbocharger and recirculated exhaust gas from the engine exhaust; an intake passage for providing the mix of pressurized air and recirculated exhaust gas as charged intake air to the engine; a first manifold assembly having a first pipe in fluid communication with said charge air passage; a second manifold assembly having a second pipe in fluid communication with said intake passage; a plurality of cooling passages horizontally disposed and in fluid communication between said first manifold assembly and said second manifold assembly such that said first pipe is operatively mounted along the horizontal length of said cooler in parallel to said cooling passages to provide fluid communication between said charge air passage and said first manifold, said second pipe operatively mounted along the horizontal length of said cooler juxtaposed to said first pipe to provide fluid communication between said intake passage and said second manifold, said cooling passages acting to cool the mix of pressurized air and recirculated exhaust gas prior to induction into the engine; and a flow control valve operatively disposed between said first and said second pipes, said flow control valve movable between open, bypass, and reverse positions to control the flow of the mixed charge air and recirculated exhaust gas through said cooler, said open position providing forward flow through said cooling passages, said bypass position providing flow that bypasses said cooling passages, and said reverse position providing a reverse cleaning flow through said cooling passages.