drkiddisback
07-01-2009, 10:52 AM
DRKIDD is BACK,
What the fuck is up with this THATGUY. You think i'm just a stupid little kid right, well let me tell you....
A Turbo-compound engine is a reciprocating engine (http://en.wikipedia.org/wiki/Reciprocating_engine) that employs a blowdown turbine (http://en.wikipedia.org/wiki/Turbine) to recover energy from the exhaust gases. The turbine is usually mechanically connected to the crankshaft (http://en.wikipedia.org/wiki/Crankshaft) but electric and hydraulic systems have been investigated as well. The turbine increases the output of the engine without increasing its fuel consumption, thus reducing the specific fuel consumption (http://en.wikipedia.org/wiki/Specific_fuel_consumption_(shaft_engine)). The turbine is referred to as a blowdown turbine (or power-recovery turbine), as it recovers the energy developed in the exhaust manifold during blowdown, that is the first period of the exhaust process when the piston still is on its expansion stroke (this is possible since the exhaust valves open before bottom dead center).
When a blowdown turbine is attached to an engine it will not reduce power due to exhaust gas (http://en.wikipedia.org/wiki/Exhaust_gas) flow restriction, since a blow down turbine is a velocity turbine not a pressure turbine as is a turbo supercharger. The exhaust restriction imparted by the three blow down turbines used on the Wright 3350 Duplex Cyclone is equal to a well designed jet stack system used on a conventional radial engine. However, the energy recovered by the blown down turbines is equals about 550 horsepower at METO power.
Turbo-compounding was used on on several airplane (http://en.wikipedia.org/wiki/Airplane) engines after World War II (http://en.wikipedia.org/wiki/World_War_II), the Napier Nomad (http://en.wikipedia.org/wiki/Napier_Nomad) and the Wright R-3350 (http://en.wikipedia.org/wiki/Wright_R-3350) being examples. Turbo-compound versions of the Napier Deltic (http://en.wikipedia.org/wiki/Napier_Deltic), Rolls-Royce Crecy (http://en.wikipedia.org/wiki/Rolls-Royce_Crecy), and Allison V-1710 (http://en.wikipedia.org/wiki/Allison_V-1710) were constructed but none was developed beyond the prototype stage. It was realized that in many cases the power produced by the simple turbine was approaching that of the enormously complex and maintenance-intensive piston engine to which it was attached. As a result, turbo-compound aero engines were soon supplanted by turboprop (http://en.wikipedia.org/wiki/Turboprop) and turbojet (http://en.wikipedia.org/wiki/Turbojet) engines.
Some modern heavy truck diesel manufacturers have incorporated turbo-compounding into their modern designs. A good example of this is the Detroit Diesel DD15 engine that claims 5 percent better fuel economy with greater power available compared to their previous engines.[1] (http://en.wikipedia.org/wiki/Turbo-compound_engine#cite_note-0)
[edit (http://en.wikipedia.org/w/index.php?title=Turbo-compound_engine&action=edit§ion=1)] Related content
Sequential twin-turbo (http://en.wikipedia.org/wiki/Twin-turbo#Sequential_twin-turbo)
Motorjet (http://en.wikipedia.org/wiki/Motorjet)
Turbosteamer (http://en.wikipedia.org/wiki/Turbosteamer)
Cogeneration (http://en.wikipedia.org/wiki/Cogeneration)
Turbocharger (http://en.wikipedia.org/wiki/Turbocharger)
Gas turbine (http://en.wikipedia.org/wiki/Gas_turbine)
[edit (http://en.wikipedia.org/w/index.php?title=Turbo-compound_engine&action=edit§ion=2)] References
^ (http://en.wikipedia.org/wiki/Turbo-compound_engine#cite_ref-0) Detroit Diesel (http://www.detroitdiesel.com)
Retrieved from "Turbo-compound engine - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Turbo-compound_engine)"
Categories (http://en.wikipedia.org/wiki/Special:Categories): Turbochargers (http://en.wikipedia.org/wiki/Category:Turbochargers) | Engine technology (http://en.wikipedia.org/wiki/Category:Engine_technology)
Hidden categories: Articles needing additional references from December 2008 (http://en.wikipedia.org/wiki/Category:Articles_needing_additional_references_fr om_December_2008) | Articles to be expanded from May 2007 (http://en.wikipedia.org/wiki/Category:Articles_to_be_expanded_from_May_2007) | All articles to be expanded (http://en.wikipedia.org/wiki/Category:All_articles_to_be_expanded)
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What the fuck is up with this THATGUY. You think i'm just a stupid little kid right, well let me tell you....
A Turbo-compound engine is a reciprocating engine (http://en.wikipedia.org/wiki/Reciprocating_engine) that employs a blowdown turbine (http://en.wikipedia.org/wiki/Turbine) to recover energy from the exhaust gases. The turbine is usually mechanically connected to the crankshaft (http://en.wikipedia.org/wiki/Crankshaft) but electric and hydraulic systems have been investigated as well. The turbine increases the output of the engine without increasing its fuel consumption, thus reducing the specific fuel consumption (http://en.wikipedia.org/wiki/Specific_fuel_consumption_(shaft_engine)). The turbine is referred to as a blowdown turbine (or power-recovery turbine), as it recovers the energy developed in the exhaust manifold during blowdown, that is the first period of the exhaust process when the piston still is on its expansion stroke (this is possible since the exhaust valves open before bottom dead center).
When a blowdown turbine is attached to an engine it will not reduce power due to exhaust gas (http://en.wikipedia.org/wiki/Exhaust_gas) flow restriction, since a blow down turbine is a velocity turbine not a pressure turbine as is a turbo supercharger. The exhaust restriction imparted by the three blow down turbines used on the Wright 3350 Duplex Cyclone is equal to a well designed jet stack system used on a conventional radial engine. However, the energy recovered by the blown down turbines is equals about 550 horsepower at METO power.
Turbo-compounding was used on on several airplane (http://en.wikipedia.org/wiki/Airplane) engines after World War II (http://en.wikipedia.org/wiki/World_War_II), the Napier Nomad (http://en.wikipedia.org/wiki/Napier_Nomad) and the Wright R-3350 (http://en.wikipedia.org/wiki/Wright_R-3350) being examples. Turbo-compound versions of the Napier Deltic (http://en.wikipedia.org/wiki/Napier_Deltic), Rolls-Royce Crecy (http://en.wikipedia.org/wiki/Rolls-Royce_Crecy), and Allison V-1710 (http://en.wikipedia.org/wiki/Allison_V-1710) were constructed but none was developed beyond the prototype stage. It was realized that in many cases the power produced by the simple turbine was approaching that of the enormously complex and maintenance-intensive piston engine to which it was attached. As a result, turbo-compound aero engines were soon supplanted by turboprop (http://en.wikipedia.org/wiki/Turboprop) and turbojet (http://en.wikipedia.org/wiki/Turbojet) engines.
Some modern heavy truck diesel manufacturers have incorporated turbo-compounding into their modern designs. A good example of this is the Detroit Diesel DD15 engine that claims 5 percent better fuel economy with greater power available compared to their previous engines.[1] (http://en.wikipedia.org/wiki/Turbo-compound_engine#cite_note-0)
[edit (http://en.wikipedia.org/w/index.php?title=Turbo-compound_engine&action=edit§ion=1)] Related content
Sequential twin-turbo (http://en.wikipedia.org/wiki/Twin-turbo#Sequential_twin-turbo)
Motorjet (http://en.wikipedia.org/wiki/Motorjet)
Turbosteamer (http://en.wikipedia.org/wiki/Turbosteamer)
Cogeneration (http://en.wikipedia.org/wiki/Cogeneration)
Turbocharger (http://en.wikipedia.org/wiki/Turbocharger)
Gas turbine (http://en.wikipedia.org/wiki/Gas_turbine)
[edit (http://en.wikipedia.org/w/index.php?title=Turbo-compound_engine&action=edit§ion=2)] References
^ (http://en.wikipedia.org/wiki/Turbo-compound_engine#cite_ref-0) Detroit Diesel (http://www.detroitdiesel.com)
Retrieved from "Turbo-compound engine - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Turbo-compound_engine)"
Categories (http://en.wikipedia.org/wiki/Special:Categories): Turbochargers (http://en.wikipedia.org/wiki/Category:Turbochargers) | Engine technology (http://en.wikipedia.org/wiki/Category:Engine_technology)
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