Patent ID: 7007680

Claim:
A charge air cooler bypass system, comprising: a turbocharger that compresses air before it enters a charge air cooler; a charge air cooler that reduces the temperature of the air from the turbocharger before it enters an engine intake; and a bypass system that mixes higher temperature bypassed air with air from the charge air cooler to create a mixed boost-air temperature that is just above the dew-point temperature so as to inhibit condensation and the formation of acids; wherein the bypass system includes: a bypass valve that allows turbo-boosted charged air to bypass a charge-air cooler; and a bypass valve controller that inhibits condensation buildup in an intake manifold or power cylinder by maintaining an intake manifold temperature just above the dew-point temperature; and wherein said bypass valve has two-ports and two respective valve plates that are configured to be actuated substantially inversely proportionally.