The invention relates to an exhaust gas recirculation system for an internal combustion engine, and to a method for operating an exhaust gas recirculation system of this type. Here, the exhaust gas recirculation system has an air feed line, an exhaust gas line, an exhaust gas recirculation line which leads from an EGR branch-off point in the exhaust gas line to an EGR feed-in point in the air feed line, and a throttle valve within the air feed line downstream of the EGR feed-in point.

A pressuring system for a vehicle engine includes an intake manifold into which ambient gases flows. A control valve connects to the intake manifold. An engine block connects to the intake manifold and connected to a gases outlet. A timing belt cover connects to the engine block. A gases pipe connects between the control valve and the timing belt cover.

A reed valve assembly includes a retainer, one or more reed cages, and a plurality of reed petals. The retainer includes a flange, first and second openings, and a center retainer separating the first and second openings. The reed cages are configured to be advanced from the bottom of the retainer and partially through the first and second openings of the retainer and have at least two inner openings generally facing each other and at least two outer openings generally facing away from each other. The inner and outer openings are configured to be fluidly coupled to the first and second openings of the retainer. The reed petals are configured to extend over the inner openings and the outer openings. The center retainer and reed cages include one or more reed cage grooves and reed cage flanges configured secure the reed cages to the retainer.