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The goal of EGR is thus to reduce NO x production by reducing the combustion temperatures. In modern diesel engines, the EGR gas is usually cooled with a heat exchanger to allow the introduction of a greater mass of recirculated gas. However, uncooled EGR designs do exist; these are often referred to as hot-gas recirculation (HGR).
[77] [full citation needed] In turbocharged engines, EGR needs a controlled pressure differential across the exhaust manifold and intake manifold, which can be met by such engineering as use of a variable geometry turbocharger, [citation needed] which has inlet guide vanes on the turbine to build exhaust backpressure in the exhaust manifold ...
The BMW film series The Hire consists of eight short films (averaging about ten minutes each) produced for the Internet in 2001 and 2002. A form of branded content, the shorts were directed by popular filmmakers from around the globe and starred Clive Owen as "the Driver" while highlighting the performance aspects of various BMW automobiles.
Water is inexpensive, non-toxic, and available over most of the earth's surface.Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing efficient heat transfer over distance with low rates of mass transfer.
Work Completed: Refurbished engine: Thermostatic bellows for engine cooling flaps replaced with thermostatic spring from VW Beetle, external oil cooler replaced, engine cooling tinware cleaned and repainted, new HT leads and distributor fitted, new fuel injector seals fitted, Fuchs alloy wheels cleaned and polished, targa top resprayed, vinyl ...
The Mercedes-Benz G-Class, colloquially known as the G-Wagon or G-Wagen [3] (as an abbreviation of Geländewagen), is a four-wheel drive luxury SUV manufactured by Magna Steyr (formerly Steyr-Daimler-Puch) in Graz, Styria, Austria, and sold by Mercedes-Benz.