DIFFUSER CASE HEAT SHIELDS
    42.
    发明申请

    公开(公告)号:US20200182088A1

    公开(公告)日:2020-06-11

    申请号:US16213395

    申请日:2018-12-07

    Inventor: Gary D. Roberge

    Abstract: A gas turbine engine includes a high pressure compressor disposed about a central longitudinal axis, a combustor, and a diffuser case. The diffuser case includes an outer ring providing a first platform and an inner ring providing a second platform. The first platform and the second platform are axially between the high pressure compressor and the combustor with respect to the central longitudinal axis. A plurality of circumferentially spaced struts extend radially from the first platform to the second platform and each include first and second circumferential sides. A plurality of heat shields are disposed on a leading edge defined at a forward end of a respective one of the plurality of struts.

    Low rotor boost compressor for engine cooling circuit

    公开(公告)号:US10563577B2

    公开(公告)日:2020-02-18

    申请号:US15242674

    申请日:2016-08-22

    Inventor: Gary D. Roberge

    Abstract: A gas turbine engine has a compressor section with a low pressure compressor and a high pressure compressor. The high pressure compressor has a downstream most location. A cooling air system includes a tap from a location upstream of the downstream most location. The tap passes air to a boost compressor and a heat exchanger, which passes the air back to a location to be cooled. The boost compressor is driven by a shaft which drives the lower pressure compressor.

    POWER TAKEOFF TRANSMISSION
    49.
    发明申请

    公开(公告)号:US20190195139A1

    公开(公告)日:2019-06-27

    申请号:US15851089

    申请日:2017-12-21

    Inventor: Gary D. Roberge

    Abstract: A power takeoff and gearbox system of a multi-spool gas turbine engine includes a high rotor towershaft operably connected to and driven by a first spool of the gas turbine engine, a first gearbox operably connected to the high rotor towershaft, a low rotor towershaft operably connected to and driven by a second spool of the gas turbine engine, and a second gearbox operably connected to the low rotor towershaft. The high rotor towershaft is located at a first case of the gas turbine engine and the low rotor towershaft is located at a second case of the gas turbine engine axially forward of the first case.

    THERMAL SHIELD FOR GAS TURBINE ENGINE DIFFUSER CASE

    公开(公告)号:US20190003392A1

    公开(公告)日:2019-01-03

    申请号:US15417257

    申请日:2017-01-27

    Inventor: Gary D. Roberge

    Abstract: A gas turbine engine comprises a fan delivering air into a bypass duct as bypass air and into a core engine. The core engine includes a high pressure compressor, a combustor, and a turbine section including a fan drive turbine driving a fan rotor through a gear reduction. The high pressure compressor having a downstream most location and air in a chamber radially outward of the combustor being air downstream of the downstream most location in the high pressure compressor. A tap taps compressed air and moves compressed air through a heat exchanger, then returns the compressed air back into a core engine housing and passes the returned air through a conduit radially outwardly of the combustor. The air is passed ng from the conduit radially inwardly to cool the turbine section.

Patent Agency Ranking