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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).
This causes excessive buildup in the cooler matrix, and when the engine warms up these solid chunks of buildup can detach from the EGR cooler and get sucked into the plastic intake tube, melting holes in the intake tube, causing a massive boost leak and in very rare cases an engine fire. BMW has issued a recall to over 1.6 million vehicles in ...
The BMW N52 is a naturally aspirated straight-6 petrol engine which was produced from 2004 to 2015. The N52 replaced the BMW M54 and debuted on the E90 3 Series and E63 6 Series . The N52 was the first water-cooled engine to use magnesium/aluminium composite construction in the engine block. [ 1 ]
[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 N57 is a family of aluminium, turbocharged straight-6 common rail diesel engines. The engines utilize variable geometry turbochargers and Bosch piezo-electric injectors. [ 1 ] The engine jointly replaced the M57 straight-6 and M67 V8 engines.
The B57 replaced the previous N57 diesel engine, and was first introduced in the G11 7 Series. The B57 is available in configurations of up to 4 turbochargers, that operate in a double-series layout. [4] In addition to BMW's own brand vehicles, the BMW B57 is also used in a diesel variant of the Ineos Grenadier. [5]
WSVN (channel 7) is a television station in Miami, Florida, United States, affiliated with the Fox network. Serving as the flagship station of locally based Sunbeam Television, it has studios on the 79th Street Causeway in North Bay Village and a transmitter in Miami Gardens, Florida.
The BMW N73 is a naturally aspirated V12 petrol engine which replaced the BMW M73 and was produced from 2003–2016. It was used in the BMW 7 Series (E65) and Rolls-Royce Phantom VII. The N73 was the world's first production V12 engine to use gasoline direct injection. [1]
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