(Continued) Primary Examiner Todd E Manahan Assistant Examiner David P. Olynick (74)
Attorney, Agent, or Firm Oliff PLC (57) ABSTRACT A geared gas turbine engine for an …

(57) ABSTRACT A highly efficient gas turbine engine includes a fan which is driven from a
turbine via a gearbox, such that the fan has a lower rotational speed than the driving turbine …

(57) ABSTRACT A gas turbine engine for an aircraft including: engine core including a
turbine; and fan including a plurality of fan blades extending radially from a hub, each fan …

(57) ABSTRACT A gas turbine engine for an aircraft has an engine core comprising turbine,
compressor, and core shaft connecting the turbine to the compressor, the turbine being the …

A gas turbine engine generates noise during use, and one particularly important flight
condition for noise generation is take-off. A gas turbine engine that has high efficiency …

The invention relates to a turbine engine module comprising a rotating device (1) having a
cover (5), said cover (5) comprising radial through ports (8) for the passage of the oil …

There is provided a gas turbine engine comprising a low pressure shaft and a high pressure
shaft; wherein the low pressure shaft connects a fan to a fan drive turbine, and the high …

It is desirable to reduce the perceived noise of a gas turbine engine so as to reduce the
impact of the noise on the human ear. According to an aspect there is provided a gas turbine …

(57) ABSTRACT A highly efficient gas turbine engine is provided. The fan of the gas turbine
engine is driven from a turbine via a gearbox, such that the fan has a lower rotational speed …

An engine core including a turbine, compressor, and core shaft connecting the turbine and
compressor, the turbine being the lowest pressure turbine, the core shaft having a running …