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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 ...
KWWL (channel 7) is a television station licensed to Waterloo, Iowa, United States, serving as the NBC affiliate for Eastern Iowa. Owned by Allen Media Broadcasting, KWWL maintains studios on East 5th Street in Waterloo, with news bureaus and advertising sales offices in Cedar Rapids, Dubuque and Iowa City.
[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 ...
KRCR-TV (channel 7) is a television station licensed to Redding, California, United States, serving as the ABC affiliate for the Chico–Redding market.It is owned by Sinclair Broadcast Group alongside five low-power stations: Chico-licensed Antenna TV affiliate KXVU-LD (channel 17); MyNetworkTV affiliates Redding-licensed KRVU-LD (channel 21) and Chico-licensed KZVU-LD (channel 22); Chico ...
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.
WDBJ (channel 7) is a television station licensed to Roanoke, Virginia, United States, serving as the CBS affiliate for the Roanoke–Lynchburg market.It is owned by Gray Media alongside Danville-licensed MyNetworkTV affiliate WZBJ, channel 24 (and its Lynchburg-licensed Class A translator WZBJ-CD, channel 24).
Seven News (stylised 7NEWS) is the television news service of the Seven Network and, as of 2021, the highest-rating in Australia. [1]National bulletins are presented from Seven's high definition studios in South Eveleigh, Sydney, while its flagship 6 pm statewide bulletins are produced in studios based in Sydney, Melbourne, Brisbane, Adelaide, and Perth.