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LF511D: An 11,000 lbf thrust (49 kN) turbofan with a 43 in diameter (1.09 m) wide-chord fan, a three-stage power turbine, and a three-stage low-pressure booster compressor [7] LF512 / LF514: Additional turbofan engines of 12,000–14,000 lbf (53–62 kN) thrust, possibly for Avro 's proposed 120-seat RJX twin airliner or for a stretched version ...
Turbo generators are used for high shaft rotational speeds, typical of steam and gas turbines. The rotor of a turbo generator is a non-salient pole type usually with two poles. [5] The normal speed of a turbo generator is 1500 or 3000 rpm with four or two poles at 50 Hz (1800 or 3600 rpm with four or two poles at 60 Hz).
A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and a mass of 380 kg (840 lb), [1] giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines.
The pumps (one for the fuel and one for the oxidizer) in electric-pump feed engines are driven by an electric motor. [19] The Rutherford engine uses dual brushless DC electric motors and a lithium polymer battery. It is claimed that this improves efficiency from the 50% of a typical gas-generator cycle to 95%. [20]
Microturbines have around 15% efficiencies without a recuperator, 20 to 30% with one and they can reach 85% combined thermal-electrical efficiency in cogeneration. [2] The recuperated Niigata Power Systems 300 kW (400 hp) RGT3R thermal efficiency reaches 32.5% while the 360 kW (480 hp) non recuperated RGT3C is at 16.3%. [7]
Certified November 7, 1980; turboshaft engine with a sea-level power rating of 2,975 hp (2,218 kW) max continuous and 4,075 hp (3,039 kW) 5-minute takeoff; 30-minute power rating of 4,355 hp (3,248 kW) with one engine inoperative; dry weight 780 lb (350 kg); [18] used on the Boeing Model 234 (civilian version of the Chinook); [19] based on the ...
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