Control apparatus for internal combustion engine and method...

Details Control apparatus for internal combustion engine and method... Control apparatus for internal combustion engine and method...

2008-02-05

2011-11-08

Leung, Quyen (Department: 2834)

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

C060S605200, C060S278000, C123S568110, C123S568120

Reexamination Certificate

active

08051659

ABSTRACT:
A control apparatus for an internal combustion engine includes an exhaust gas recirculation unit; an intercooler that is provided in the intake passage, at a position downstream of a position to which the exhaust gas is recirculated back; a bypass passage through which an intake air flow bypasses the intercooler. When it is determined that the pH of the condensed water obtained from the exhaust gas is at the level at which the intercooler corrodes in the state where the exhaust gas is recirculated back by the exhaust gas recirculation unit, the control apparatus executes a control for cutting off an intake air flow toward the intercooler to direct the intake air flow only to the bypass passage. Thus, it is possible to ensure reliability of the intercooler.

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Machine translation of JP09-256915.
Machine translation of JP2005-146919.

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