Counter-rotating compressor
AssigneePratt & Whitney Canada Corp.
InventorHuu Duc Vo
Life of this patent
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Abstract
A compressor is described which includes a non-axial first rotor, and a second rotor disposed immediately downstream from the first rotor and being co-axial therewith about a longitudinal axis of rotation. The second rotor rotates in a direction opposite the non-axial first rotor to discharge fluid flow into an uninterrupted passage between an outlet of the second rotor and one of a downstream combustor or a further compression stage. The uninterrupted passage is free of a diffusing passage. A gas turbine engine including such a compressor and a method of compressing fluid flow is also described.
Claims20
A compressor comprising:
- a non-axial first rotor;
- and a second rotor disposed immediately downstream from the first rotor and being co-axial therewith about a longitudinal axis of rotation, the second rotor rotating in a direction opposite the non-axial first rotor to discharge fluid flow immediately downstream of the second rotor in a substantially axial direction parallel to the longitudinal axis of rotation into an uninterrupted passage between an outlet of the second rotor and one of a downstream combustor or a further compression stage, the uninterrupted passage being free of a diffusing passage.
A gas turbine engine comprising a compressor having a non-axial first rotor, and a second rotor disposed immediately downstream from the first rotor and being co-axial therewith about a longitudinal axis of rotation, the second rotor rotating in a direction opposite the non-axial first rotor to discharge fluid flow immediately downstream of the second rotor in a substantially axial direction parallel to the longitudinal axis of rotation into an uninterrupted passage between an outlet of the second rotor and one of a downstream combustion chamber or compression stage, the uninterrupted passage being free of a diffusing passage.
A method of compressing fluid flow, comprising:
- rotating a non-axial first rotor;
- and
- rotating a second rotor in a direction opposite the non-axial first rotor, the second rotor being located immediately downstream of the non-axial first rotor, the second rotor discharging fluid flow immediately downstream of the second rotor in a substantially axial direction parallel to a longitudinal axis of rotation of the second rotor into an uninterrupted passage, the uninterrupted passage extending between an outlet of the second rotor and one of a downstream combustion chamber or compression stage and being free of a diffusing passage.
Dependencies are inferred from the claim text.