초록 ▼

A turbine engine includes low and high pressure spools. A high power take-off shaft is coupled to the high spool. An auxiliary component, such as a generator, is configured to be driven by the high power take-off shaft at a first speed. The low spool, in part, drives the auxiliary component, for exa

A turbine engine includes low and high pressure spools. A high power take-off shaft is coupled to the high spool. An auxiliary component, such as a generator, is configured to be driven by the high power take-off shaft at a first speed. The low spool, in part, drives the auxiliary component, for example, by interconnecting the high power take-off shaft to a lower power take-off shaft through a speed summing gearbox. The gearbox drives the auxiliary component and increases the rotational speed of the auxiliary component from the first speed to the second speed. The low power take-off shaft also drives another generator, in one example. The turbine engine can be started by the low pressure generator, for example, in response to a command from a controller, which transforms the generator into a starter motor.

대표청구항 ▼

What is claimed is: 1. A turbine engine comprising:low and high pressure spools;a high power take-off shaft coupled to the high pressure spool;a first auxiliary component configured to be driven by the high power take-off shaft at a first speed;a gearbox interconnecting the low pressure spool to the

What is claimed is: 1. A turbine engine comprising:low and high pressure spools;a high power take-off shaft coupled to the high pressure spool;a first auxiliary component configured to be driven by the high power take-off shaft at a first speed;a gearbox interconnecting the low pressure spool to the first auxiliary component, the gearbox configured to drive the first auxiliary component at a second speed greater than the first speed;a low power take-off shaft coupled to the low pressure spool and a second auxiliary component configured to be driven by the low power take-off shaft;wherein the gearbox interconnects the low and high power take-off shafts; andwherein the gearbox includes an epicyclic gear train configured to receive a rotational input from the low power take-off shaft for increasing a rotational speed provided to the second auxiliary component.