公开(公告)号：DE69624660D1

公开(公告)日：2002-12-12

申请号：DE69624660

申请日：1996-12-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHIRLE STEVEN M ,  BAGHDADI SAMY ,  KHALID SYED J PALM BEACH GARDE ,  PERKINS GARY M

IPC: F02C9/22 ,  F02K3/06 ,  F02K3/075 ,  F01D5/14

Abstract: The engine has an engine intake for admitting a working medium into the engine, and a fan downstream of the intake having at least one fan blade array rotatable about a central axis. There is a fan duct downstream of the fan, and a core unit also downstream of the fan and in parallel flow relationship with the fan duct, the core unit comprising, in series flow relationship. There is a guide vane array, and a hybrid stage having a rotor blade array and a stator vane array. There is a core compressor having at least one rotor blade array, the hybrid and compressor rotor blade arrays being rotatable about the central axis at a common rotational speed. There is also a fan duct bypass valve for governing flow communication between the fan and the fan duct, a compressor bypass port upstream of the compressor for selectively establishing flow communication between the core unit and the fan duct. There is a compressor bypass valve for controlling working medium flow through the bypass port. The fan duct and compressor bypass valves each have a closed position and an open position, the engine being operable in at least two modes determined by the positions of the valves such that the mass flow rate of the working medium channeled into the core unit in one of the modes exceeds that channeled into the core unit in the other of the modes.

公开(公告)号：DE69624660T2

公开(公告)日：2003-07-24

申请号：DE69624660

申请日：1996-12-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHIRLE STEVEN M ,  BAGHDADI SAMY ,  KHALID SYED J PALM BEACH GARDE ,  PERKINS GARY M

IPC: F02C9/22 ,  F02K3/06 ,  F02K3/075 ,  F01D5/14

Abstract: The engine has an engine intake for admitting a working medium into the engine, and a fan downstream of the intake having at least one fan blade array rotatable about a central axis. There is a fan duct downstream of the fan, and a core unit also downstream of the fan and in parallel flow relationship with the fan duct, the core unit comprising, in series flow relationship. There is a guide vane array, and a hybrid stage having a rotor blade array and a stator vane array. There is a core compressor having at least one rotor blade array, the hybrid and compressor rotor blade arrays being rotatable about the central axis at a common rotational speed. There is also a fan duct bypass valve for governing flow communication between the fan and the fan duct, a compressor bypass port upstream of the compressor for selectively establishing flow communication between the core unit and the fan duct. There is a compressor bypass valve for controlling working medium flow through the bypass port. The fan duct and compressor bypass valves each have a closed position and an open position, the engine being operable in at least two modes determined by the positions of the valves such that the mass flow rate of the working medium channeled into the core unit in one of the modes exceeds that channeled into the core unit in the other of the modes.