Axial flow compressor assembly
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsDouglas D. Dierksmeier, Edward C. Rice, Ryan C. Humes
Life of this patent
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Abstract
An axial flow compressor comprises a tubular casing which encases a rotatable shaft, a pair of rotor segments coupled to the rotatable shaft and each comprising a bladed disc, and a banded stator segment disposed between the pair of rotor segments and comprising a plurality of stator vanes extending between an outer flowpath ring and an inner flowpath ring. A method of assembling an axial flow compressor comprises installing a rotor segment inside a tubular compressor casing, installing a vane segment adjacent the installed rotor segment, and repeating the steps of installing a rotor segment and vane segment until a desired number of rotor segment and vane segment pairs are installed.
Claims20
A method of assembling an axial flow compressor comprising:
- providing a tubular compressor casing having a first end and a second end;
- installing a rotor segment inside said compressor casing from a first end of said casing and positioning said rotor segment proximate the second end of said casing;
- installing a vane segment inside said compressor casing from the first end of said casing and positioning said vane segment adjacent the installed rotor segment;
- installing another rotor segment inside said compressor casing from the first end and positioning the rotor segment adjacent the installed vane segment;
- installing another vane segment inside said compressor casing from the first end of said casing and positioning said vane segment adjacent the installed rotor segment;
- repeating the steps of installing another rotor segment and installing another vane segment until a desired number of rotor segment and vane segment pairs are installed;
- and
- installing a final rotor segment inside said compressor casing from the first end and positioning said final rotor segment next to the last installed vane segment.
An axial flow compressor assembly comprising:
- a tubular compressor casing configured to encase a portion of a rotable shaft;
- a pair of rotor segments each comprising a bladed disc disposed within said casing, said rotor segments being configured to be coupled to the shaft;
- and
- a banded stator segment disposed within said casing axially between said pair of rotor segments, said stator segment comprising an outer flowpath ring, an inner flowpath ring, and a plurality of vanes extending between said rings and being spaced around the circumference thereof, said stator segment further comprising an abradable ring extending axially from said outer flowpath ring and radially between the blade tips of one of said rotor segments and said casing.
An axial flow compressor assembly comprising:
- a tubular compressor casing configured to encase a portion of a rotable shaft;
- a pair of rotor segments each comprising a bladed disc disposed within said casing, said rotor segments being configured to be coupled to the shaft;
- and
- a banded stator segment disposed within said casing axially between said pair of rotor segments, said stator segment comprising an outer flowpath ring, an inner flowpath ring, and a plurality of vanes extending between said rings and being spaced around the circumference thereof, said stator segment further comprising one or more tangs extending radially outward from said outer flowpath ring to thereby space said outer flowpath ring radially inward from said casing.
Dependencies are inferred from the claim text.