摘要:
A turbofan engine assembly (10) including an internal combustion engine (16) in fluid communication between a compressor (14) and a turbine (18), the internal combustion engine (16) having an engine shaft (17), a bypass duct (20) surrounding the internal combustion engine (16), and a fan (12) drivingly engaged to the engine shaft (17) via a gearbox (72), the gearbox (72) configured to increase an output speed of the fan (12) relative to an input speed of the engine shaft (17).
摘要:
Die Erfindung betrifft ein Verfahren zum Betriebsstart einer Dampfturbinenanlage (2, 94) mit einer Dampfturbine (6), einer Verbrennungskraftmaschine (4) und einem Abhitzedampferzeuger (16). Zum Erreichen eines schnellen Betriebsstarts der Dampfturbinenanlage (2) wird vorgeschlagen, dass Restwärme des Abhitzedampferzeugers (16), die von einem Betrieb der Dampfturbinenanlage (2, 94) vor einer Betriebspause der Dampfturbinenanlage (2, 94) stammt, nach der Betriebspause und vor einem Zuführen von Wärmeenergie von der Verbrennungskraftmaschine (4) zum Abhitzedampferzeuger (16) zur Dampferzeugung verwendet wird und mit dem Dampf die Dampfturbine (6) angefahren wird.
摘要:
An axial flow positive displacement engine (8) has an inlet (20) axially spaced apart and upstream from an outlet (22). Inner and outer bodies (12, 14) have offset inner and outer axes (16, 18) extend from the inlet (20) to the outlet (22) through first, second, and third sections (24, 26, 28) in serial downstream flow relationship. At least one of the bodies is rotatable about its axis. The inner and outer bodies (12, 14) have intermeshed inner and outer helical blades (17, 27) wound about the inner and outer axes (16, 18) respectively. The inner and outer helical blades (17, 27) extend radially outwardly and inwardly respectively. The helical blades have first, second, and third twist slopes (34, 36, 38) in the first, second, and third sections (24, 26, 28) respectively. The first twist slopes (34) are less than the second twist slopes (36) and the third twist slopes (38) are greater than the second twist slopes (36). A combustion section (40) extends axially downstream from the second section (26) through at least a portion (42) of the third section (28).
摘要:
A compound cycle engine (10) comprises a compressor and a turbine section (14, 18), and at least one cycle topping device (16) providing an energy input to the turbine section (18). The compressor section (14) compresses the air according to a pressure ratio PRgt. The cycle topping device (16) further compresses the air according to a volumetric compression ratio Rvc, and wherein PRgt x Rvc are selected, according to one aspect of the invention, to provide a cycle which permit a more compact and lighter compound cycle engine to be provided.
摘要:
An axial flow positive displacement engine (8) has an inlet (20) axially spaced apart and upstream from an outlet (22). Inner and outer bodies (12, 14) have offset inner and outer axes (16, 18) extend from the inlet (20) to the outlet (22) through first, second, and third sections (24, 26, 28) of a core assembly (15) in serial downstream flow relationship. At least one of the bodies is rotatable about its axis. The inner and outer bodies (12, 14) have intermeshed inner and outer helical blades (17, 27) wound about the inner and outer axes (16, 18) respectively. The inner and outer helical blades (17, 27) extend radially outwardly and inwardly respectively. The helical blades have first, second; and third twist slopes (34, 36, 38) in the first, second, and third sections (24, 26, 28) respectively. The first twist slopes (34) are less than the second twist slopes (36) and the third twist slopes (38) are less than the second twist slopes (36). A combustor section (40) extends axially downstream through at least a portion of the second section (26).
摘要:
A method and device for controllably combusting combustible material, including a combustion device (10) comprising an elongate combustion tube (12) having an inlet section (14) including an inlet for combustible material, an ignition section (16), including an igniter (20) displaced along a length of the tube from the inlet section to ignite the combustible material, and at least one energy extraction device (32) operatively coupled to the combustion tube and configured to extract energy from combustion of the combustible mixture.