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Diesel engine runaway is an occurrence in diesel engines, in which the engine draws extra fuel from an unintended source and overspeeds at higher and higher RPM, producing up to ten times the engine's rated output until destroyed by mechanical failure or bearing seizure due to a lack of lubrication. [1]
Other than the piston rings, “blow-by” gases can push the fuel oil past the rings and into the crankcase. [1] “Blow-by” gases are a mix of fuel oil and exhaust gases that push past the piston rings. Crankcase dilution is caused more when the lube oil is fresher. [3] Another cause of crankcase dilution is a slow or delayed injection ...
The draught tube routes all blow-by gases back into the intake mixture and is usually located between the air filter and carburetor. Dry sump engines in some drag racing cars use scavenging pumps to extract oil and gases from the crankcase. [18] A separator removes the oil, then the gases are fed into the exhaust system via a venturi tube.
Oil sludge or black sludge is a gel-like or semi-solid deposit inside an internal combustion engine, that can create a catastrophic buildup.
Maschinenfabrik Fahr (Fahr Machine Factory) was established by Johann Georg Fahr in Gottmadingen in 1870. One of its most important products was the self-binder, manufactured in 1911, while the first tractor, the Fahr F22, was built in 1938 from an idea of Wilfred Fahr and Bernhard Flerlage, and had a 22 hp (16 kW) Deutz F2M414 twin-cylinder diesel engine.
Oils are "blown" through partial oxidation of the oil at elevated temperatures. A typical blowing process involves heating the oil to 70 to 120 °C (158 to 248 °F) and passing air through the liquid. [1] The modification causes the formation of C-O-C and C-C cross links, and hydroxyl and carboxyl functional groups. [1]
Cordierite Diesel Particulate Filter on GM 7.8 Isuzu. Unlike a catalytic converter which is a flow-through device, a DPF retains bigger exhaust gas particles by forcing the gas to flow through the filter material before exiting; [2] [29] however, the DPF does not retain small particles.
In 2012, SAME Deutz-Fahr sold 22 million shares, the majority of its holding in Deutz AG, to Volvo, making of it the largest shareholder at just over 25%. SAME Deutz-Fahr retained 8.4% equity in the company. [14] In 2017, Deutz acquired Torqeedo [15] GmbH, specialist for integrated electric and hybrid drives for boats. Volvo sold all of its ...