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3 records (took 0.028 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE69521816D1

    公开(公告)日：2001-08-23

    申请号：DE69521816

    申请日：1995-11-02

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： EVEKER KEVIN M ,  GYSLING DANIEL L ,  NETT CARL N ,  WANG HUA O

    IPC: F02C7/057 ,  F02K3/06 ,  F04D27/02

    Abstract: PCT No. PCT/US95/17145 Sec. 371 Date Nov. 2, 1995 Sec. 102(e) Date Nov. 2, 1995 PCT Filed Nov. 2, 1995 PCT Pub. No. WO97/00381 PCT Pub. Date Jan. 3, 1997A technique for controlling compressor stall and surge is disclosed. In a gas turbine engine, static pressure asymmetry is sensed at a plurality of locations along the circumference of the compressor inlet. Time rate of change of the mass flow in the compressor is also estimated using pressure measurements in the compressor. A signal processor uses these signals to modulate a compressor bleed valve responsive to the level of flow property asymmetry, the time rate of change of the annulus average flow to enhance operability of the compressor.

    2.
    发明专利
    未知

    公开(公告)号：DE69521816T2

    公开(公告)日：2002-04-04

    申请号：DE69521816

    申请日：1995-11-02

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： EVEKER KEVIN M ,  GYSLING DANIEL L ,  NETT CARL N ,  WANG HUA O

    IPC: F02C7/057 ,  F02K3/06 ,  F04D27/02

    Abstract: PCT No. PCT/US95/17145 Sec. 371 Date Nov. 2, 1995 Sec. 102(e) Date Nov. 2, 1995 PCT Filed Nov. 2, 1995 PCT Pub. No. WO97/00381 PCT Pub. Date Jan. 3, 1997A technique for controlling compressor stall and surge is disclosed. In a gas turbine engine, static pressure asymmetry is sensed at a plurality of locations along the circumference of the compressor inlet. Time rate of change of the mass flow in the compressor is also estimated using pressure measurements in the compressor. A signal processor uses these signals to modulate a compressor bleed valve responsive to the level of flow property asymmetry, the time rate of change of the annulus average flow to enhance operability of the compressor.

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