Actuator-Intake Port Swirl: Description

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Swirl Actuator

Courtesy of DAIMLERCHRYSLER CORP.

1 - SWIRL ACTUATOR

2 - EGR COOLER

The intake manifold swirl actuator is located between the two intake manifolds. See Fig 1.

Fig 2: View Of Intake System And Swirl Valve Ports

Courtesy of DAIMLERCHRYSLER CORP.

1 - EGR COOLER

2 - SWIRL PORT VALVES

3 - CHARGE AIR PASSAGE

4 - SWIRL PORT ACTUATING LEVER

5 - SWIRL PORT ACTUATOR

The intake manifolds have a charge air passage (3) which are ovate, and swirl passage (2) which are round, for each cylinder. The swirl blades (2) are mounted in each intake manifold swirl passage (2) and are not serviceable. The actuator (5) is PWM controlled by the ECM and is constantly adjusting while the engine is running to optimize the air/fuel mixture and create the best possible air turbulence. The result is Improved combustion, improved engine performance and a reduction in exhaust particulates. The swirl blades (2) in the intake manifold are held in the open position by an internal spring in an un-powered state. See Fig 2.