Originally Posted by jlc41
Got this from Car & Driver article. (Still searching for engine drawing/pcv). The Pentastar is also more compact than the engines it replaces. Chrysler used torque-activated cam phasers that minimize cylinder-head width, so these DOHC heads are no wider than the SOHC heads on prior engines. There’s also a neat space-saving innovation for the PCV system. It employs a camshaft-mounted centrifuge that spins to separate oil from crankcase blowby gasses. The design eliminates the need for larger PCV system plumbing, which Chrysler says shaves two inches off the Pentastar’s height. An added benefit: smaller engines leave more crush space in the engine bay, improving crash-test performance.
yes, every manufacturer using direct injection is trying to find a way to get the oil out of the vapor emitted from the engine venting system. the system described above is supposed to do something like what a catch can does - condense the oil and keep it in the engine but let the other gases leave thru the pcv system and be burned up. the diff is the catch can condenses the oil outside the engine and you have to drain and dispose of it.