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    OIL PUMP FOR GAS TURBINE ENGINE AND ASSOCIATED METHOD OF PUMPING OIL
    9.
    发明公开
    OIL PUMP FOR GAS TURBINE ENGINE AND ASSOCIATED METHOD OF PUMPING OIL 审中-公开

    公开(公告)号：EP4450809A1

    公开(公告)日：2024-10-23

    申请号：EP24171418.7

    申请日：2024-04-19

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： MENHEERE, Dave

    IPC分类号： F04B1/107 ,  F04B1/1071 ,  F04B1/113 ,  F04B1/0404 ,  F04B1/0452 ,  F04B1/047 ,  F04B7/04 ,  F04B53/10 ,  F01D25/20 ,  F02C7/32

    摘要： An oil pump comprising: a support (62) having a guide (80) extending around an axis (70), a radial position of the guide (80) relative the axis (70) varying around the axis (70), and a first oil passage (64) formed in the support (62); a rotary assembly (66) mounted to the support (62) via support bearings (72), and rotatable around the axis (70), the rotary assembly (66) having a second oil passage (68) and a cylinder (78), the cylinder (78) extending radially relative the axis (70), an inlet port (84) fluidly connecting the first oil passage (64) to the cylinder (78), and an outlet port (190) fluidly connecting the cylinder (78) to the second oil passage (68); and a piston (74) slidingly mounted in the cylinder (78), a radially-outer end of the piston (74) further slidingly engaged with the guide (80), wherein the inlet port (84; 184) is uncovered by the piston (74) and open, and wherein when the piston (74) is engaged with the maximum radial position of the guide (80), the inlet port (84) is uncovered by the piston (74) and open, and wherein when the piston (74) is engaged with the minimum radial position of the guide (80), the inlet port (84) is covered by the piston (74) and closed.