摘要:
Turbolader (1) für eine Brennkraftmaschine, mit einem in einem Verdichtergehäuse (2) angeordneten und von einem Antrieb drehbaren Verdichter zum Verdichten einer Ansaugluft für die Brennkraftmaschine, wobei die verdichtete Ansaugluft von dem Verdichter radial nach außen durch einen Ringspalt (3) in dem Verdichtergehäuse (2) gefördert wird und wobei eine offene Weite (A) des Ringspaltes von einem lageveränderbaren Element (4) veränderbar ist, und wobei das lageveränderbare Element (4) aus einem elastischen Material ist. Die vorgeschlagene Ausgestaltung führt zu einer Ausweitung des Verdichterkennfeldes zu hohen Massendurchsätzen bei gleichzeitiger Gewährleistung eines guten Wirkungsgrades bei niedrigen Massenströmen.
摘要:
The invention specifically relates to optimizing fuel-injection control. To this end, the driving speeds of apparatuses are adjusted by controlling the speed of the turbine TL according to the power. According to the invention, the method for optimizing the control of a free turbine (TL) power package of an aircraft, provided with a low-pressure body (BP), which supplies power (Pd1, Pd2,…) to apparatuses (E1, E2,…) and which is linked to a high-pressure body (HP), consists of varying the speed (VBP) of the low-pressure body (BP) in order to obtain a minimum speed (VHP) for the high-pressure body (HP), in such a way that the power supplied (Pf) by the apparatuses (E1, E2,…) remains constant. In particular, since the power supplied by the apparatuses (E1, E2,…) is dependent upon the speed at which said apparatuses are driven by the low-pressure body (BP), the speed set point (C BP ) of the low-pressure body (BP) of the turbine (TL) is dependent upon the maximum value (Max Vm(i)) of the minimum speeds Vm1, Vm2,...) of the apparatuses (E1, E2,…), enabling the respectively required amounts of power to be obtained in an optimised manner, and upon a positive or zero incrementation added to the speed set point (C BP ) of the low-pressure body (BP) in order to minimize the speed (V HP ) of the high-pressure body (HP) to the ISO power supply of the apparatuses (E1, E2,…).
摘要:
A coupling system (20) includes a dynamoelectric device (22) selectively operable as either a generator or an electric motor, a gas turbine engine (24), a main differential (26) operably connected between the dynamoelectric device (22) and the gas turbine engine (24), a rotationally powered accessory (34) engaged with the main differential (26), an epicyclic start differential (28) operatively connected to the main differential (26), and a brake mechanism (36). The brake mechanism (36) is configured for selectively braking the epicyclic start differential (28) when the dynamoelectric device (22) operates as an electric motor to direct torque transmission to the gas turbine engine (24), and is further configured to cease braking the epicyclic start differential (28) when the dynamoelectric device (22) operates as a generator such that the main differential (26) transmits torque to power the rotationally powered accessory (34) and to the dynamoelectric device (22)
摘要:
A device, for controlling an electric power generating system having a gas turbine (15), a compressor (12, 13), a combustion chamber (14), and an electric power generator (6) connected mechanically to the gas turbine, includes regulators (24, 25) supplying a first control signal (U FV ) for controlling fuel supply to the combustion chamber (14), and a second control signal (U IGV ) for controlling air intake by the compressor (12, 13). The regulators (24, 25) are configured to generate at least one of the first (U FV ) and second (U TGV ) control signals in sliding-mode control manner.
摘要:
Die Erfindung betrifft einen Wellenstrang (1) mit einer Anhebevorrichtung (10), die derart ausgebildet ist, dass die Lager des Wellenstranges (1) individuell angesteuert werden können, wodurch Schwingungen während des Betriebs minimiert werden können.
摘要:
Certain embodiments of the invention may include systems and methods for controlling an integrated drive train. According to an example embodiment of the invention, a method for controlling a gas turbine drive train (100) includes measuring speed (311) associated with the drive train (100), controlling fuel flow to a turbine (328) based at least in part on a speed command (506) and the measured speed (311), controlling one or more guide vanes associated with a torque converter (326) based at least in part on the speed command (506) and an expected power output (514) of the torque converter (326), and selectively coordinating respective torque contributions from the torque converter (326) and the turbine (328).
摘要:
A gas turbine auxiliary power unit system (100:200:300:400:500) for an aircraft comprises an aircraft cabin (110) provided with a pressurised air supply (116), a gas turbine engine (120:220:320:420:520) comprising a compressor assembly (122:222:322:422:522), and a controller (130:230:330:430:530). The pressurised air supply (116) is provided to the aircraft cabin (110) through an aircraft cabin air inlet (112), and exhausted from the aircraft cabin (110) through an aircraft cabin air exhaust (114), while the gas turbine engine (120:220:320:420:520) is provided with an inlet air flow (124) from the aircraft cabin air exhaust (114). The controller (130:230:330:430:530) is operable to control a flow rate of a fuel supplied to the gas turbine engine (120:220:320:420:520) responsive to a power demand on the auxiliary power unit (100:200:300:400:500), and also to restrict an inlet air flow into the gas turbine engine (120:220:320:420:520), so as to maintain an air pressure inside the aircraft cabin (110) within a pre-determined range.