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Intake manifold vacuum is applied to the crankcase via the PCV valve. The airflow through the crankcase and engine interior sweeps away combustion byproduct gases. This mixture of air and crankcase gases then exits, often via another simple baffle, screen, or mesh to exclude oil mist, through the PCV valve and into the intake manifold. On some ...
EA211 engine family. Turbocharged and direct-injection TSI engines with a four-cylinder, four-valve layout and belt driven camshafts. 1.2 TSI 66 kW The entry-level petrol engine. Turbocharging produces a maximum torque of 160 Nm (at 1,400 to 3,500 rpm). 1.2 TSI 77 kW
By 1964, most new cars sold in the U.S. were so equipped, and PCV quickly became standard equipment on all vehicles worldwide. [3] The first legislated exhaust (tailpipe) emission standards were promulgated by the State of California for 1966 model year for cars sold in that state, followed by the United States as a whole in model year 1968.
An idle air control actuator or idle air control valve (IAC actuator/valve) is a device commonly used in fuel-injected vehicles to control the engine's idling rotational speed . [1] In carburetted vehicles a similar device known as an idle speed control actuator is used.
The Volkswagen EA211 engine (EA = development order), also called modular gasoline engine kit, is a family of inline-three and inline-four petrol engines with variable valve timing developed by Volkswagen Group in 2011. [1] They all include a four-stroke engine and dual overhead camshaft drive into exhaust manifolds. [1]
The Volkswagen air-cooled engine is an air-cooled, gasoline-fuelled, boxer engine with four horizontally opposed cast-iron cylinders, cast aluminum alloy cylinder heads and pistons, magnesium-alloy crankcase, and forged steel crankshaft and connecting rods.
A blowoff valve is designed to release pressure in the intake system when the throttle is closed. A "recirculating" type blowoff valve releases the pressurised air back into the non-pressurized section of the intake (i.e. upstream of the turbocharger), while an "atmospheric venting" type blowoff valve dumps the air directly into the atmosphere.
20v: four valves per cylinder, each with two concentric valve springs, 20 valves in total, bucket tappets, timing belt & simplex roller chain hybrid-driven double overhead camshafts (DOHC), compression ratio: 10.3:1 aspiration dual-barrel throttle valve, two-piece (one-piece on 20v) cast alloy intake manifold, two-piece cast iron exhaust manifold