Methods and systems are provided for introducing a charge motion to a cylinder via a bladder in an intake manifold runner. In one example, a system may include positioning a bladder in an intake port proximate to a cylinder.

Methods and systems are provided for introducing a charge motion to a cylinder via a bladder in an intake manifold runner. In one example, a system may include positioning a bladder in an intake port proximate to a cylinder.

A fresh air system for supplying combustion chambers of an internal combustion engine with fresh air may include a housing, through which at least one fresh air path passes, and a flap mechanism, which includes at least one flap adjustably mounted on the housing. The flap may be rotatably adjustable between a closed position, in which the flap closes off the fresh air path in a fluid-tight manner and an opened position, in which the flap opens the fresh air path for fresh air to flow through. The flap mechanism may include a spring-elastic preload element, which supports itself on the housing and preloads the flap against at least one of the opened position and the closed position.

An engine cover system for joining a cover with an intake manifold body. A plurality of structural ribs project from an external surface of the body including a pair of parallel ribs. Each parallel rib carries an integrally-molded U-shaped receiver strip extending transversely from the parallel ribs to form slots having closed ends proximate a first edge of the body and slot openings defined by respective edges of the receiver strips. The engine cover is comprised of a shroud, first and second radial arms, and first and second hinge pins projecting from the first and second radial arms, respectively. The hinge pins are configured to slide into the slots via the slot openings into the closed ends. First and second elastomeric ferrules are installed on the first and second hinge pins, respectively, configured to be compressed by the receiver strips when captured at the closed ends.

An engine cover system for joining a cover with an intake manifold body. A plurality of structural ribs project from an external surface of the body including a pair of parallel ribs. Each parallel rib carries an integrally-molded U-shaped receiver strip extending transversely from the parallel ribs to form slots having closed ends proximate a first edge of the body and slot openings defined by respective edges of the receiver strips. The engine cover is comprised of a shroud, first and second radial arms, and first and second hinge pins projecting from the first and second radial arms, respectively. The hinge pins are configured to slide into the slots via the slot openings into the closed ends. First and second elastomeric ferrules are installed on the first and second hinge pins, respectively, configured to be compressed by the receiver strips when captured at the closed ends.

Methods and systems are provided for adjusting engine operating parameters to regulate condensate formation in a charge air cooler. Based on conditions conducive to condensate formation, one or more of throttle valve position, active grille shutter opening and compressor speed may be regulated in order to decrease dew point temperature and condensation at the charge air cooler.