Blower system
AssigneeROLLS-ROYCE plc
InventorsChristopher A. Murray, Nicholas Howarth, Daniel Swain, Ian J. Bousfield
Life of this patent
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Abstract
There is provided a blower system for providing air to an airframe system, comprising a rotor configured to be mechanically coupled to a spool 440 of a gas turbine engine, wherein the rotor is configured to: in a blower mode, be driven to rotate by the spool to discharge air to an airframe discharge port for supply to an airframe system; and, in an engine drive mode, receive air from an external air source via an impingement port that is configured to direct the received air onto the rotor and thereby drive the rotor to rotate to drive the spool to.
Claims18
A blower system for providing air to an airframe system, comprising:
- a rotor configured to be mechanically coupled to a spool of a gas turbine engine;
- wherein the rotor is configured to:
- in a blower mode, be driven to rotate by the spool to discharge air to an airframe discharge port for supply to the airframe system;
- in an engine drive mode, receive air from an external air source via an impingement port that is configured to direct the received air onto the rotor and thereby drive the rotor to rotate to drive the spool to rotate;
- and
- rotate in the same direction in both the blower mode and the engine drive mode.
A blower system for providing air to an airframe system, comprising:
- a rotor configured to be mechanically coupled to a spool of a gas turbine engine;
- wherein the rotor is configured to:
- in a blower mode, be driven to rotate by the spool to discharge air to an airframe discharge port for supply to the airframe system;
- and
- in an engine drive mode, receive air from an external air source via an impingement port that is configured to direct the received air onto the rotor and thereby drive the rotor to rotate to drive the spool to rotate;
- wherein the impingement port is one of a plurality of impingement ports, each configured to direct air onto the rotor and thereby cause the rotor to rotate;
- and
- wherein the rotor is configured to rotate in a first direction to compress air for discharge to the airframe discharge port;
- and wherein the or each impingement port is configured to direct air onto the rotor to drive it to rotate in the same first direction.
Dependencies are inferred from the claim text.