Intake manifold for an internal combustion engine

An air intake system for an internal combustion engine, the air intake system comprising:

• an air intake manifold defining a chamber and a plurality of outlets in fluid communication with the chamber;
• a gas-permeable member dividing at least a portion of the chamber into a first chamber portion and a second chamber portion;
• and
• an EGR inlet configured as a source of recirculated exhaust gas and sufficiently positioned with respect to the permeable member such that recirculated exhaust gas supplied by the EGR inlet during operation of the engine enters the first chamber portion;
• and wherein the permeable member separates the first chamber portion from the outlets.

An air intake system for an internal combustion engines the air intake system comprising:

• an air intake manifold defining a chamber and having a manifold inlet and a plurality of outlets in fluid communication with the chamber;
• a plate defining a Plurality of apertures and dividing at least a portion of the chamber into a first chamber portion and a second chamber portion;
• and
• a conduit having an EGR inlet configured to direct recirculated exhaust gas into the conduit;
• wherein the conduit is configured to convey gases, including at least air and the recirculated exhaust gas from the EGR inlet, into the manifold inlet;
• and wherein the plate extends at least to the manifold inlet such that when the gases from the conduit enter the chamber through the manifold inlet, the plate directs a portion of the gases into the first chamber portion and another portion of the gases into the second chamber portion.

An engine comprising:

• a plurality of cylinders;
• an intake manifold defining a chamber, a manifold inlet, and a plurality of outlets;
• a plurality of runners enabling fluid communication between the outlets and the plurality of cylinders;
• a gas-permeable splitter plate dividing the chamber into a first chamber portion and a second chamber portion;
• a conduit operatively connected to the manifold inlet for providing air to the chamber;
• and
• an EGR inlet configured as a source of recirculated exhaust gas;
• wherein the outlets are separated from the first chamber portion by the splitter plate;
• and wherein the splitter plate is sufficiently positioned such that at least a portion of the recirculated exhaust gas from the EGR inlet enters the first chamber portion during engine operation