OPERATION METHOD FOR PROPULSION MOTOR GEARBOX (PMG) OF TWIN-SHAFT DOUBLE-FLOW TURBOJET ENGINE (TJE) AND PMG, IMPLEMENTING THIS METHOD; OPERATION METHOD FOR TJE PMG REGULATOR PUMP AND REGULATOR PUMP, IMPLEMENTING THIS METHOD, OPERATION METHOD FOR TJE PMG THRUST AUGMENTOR PUMP AND THRUST AUGMENTOR PUMP, IMPLEMENTING THIS METHOD; OPERATION METHOD FOR TJE PMG CENTRIFUGAL BREATHER AND CENTRIFUGAL BREATHER, IMPLEMENTING THIS METHODD Russian patent published in 2017 - IPC F02C7/32 B01J3/00 

FIELD: engine devices and pumps.

SUBSTANCE: group of inventions refers to propulsion motor gearboxes (PMG) of aviation turbojet engines (TJE) and operation methods for propulsion motors. The complex of THE PMG propulsion motors has coaxial shafts of high-pressure rotors (HPR), low-pressure rotor (LPR), central conical drive (CCD), propulsion motor gearbox (PMG) and a remote accessory gearbox (RAG). The working torque during the operation of the engine is taken from the HPR shaft and is successively sent through the main conical gear pair of the CCD, through the spring communicating the CCD with the conical gear pair of the PMG main conical drive (MCD). Through the PMG, installed on the MCD input shaft, a driven bevel gear is fed to the main distribution spur gear, communicated by torque over at least two spur pinions, contacting with it, forming two head gear pairs of multi-stage gearboxes, which divide the share streams of the working torque into two groups according to the number of motors. One of these groups is transferred by a multistage gearbox via a flexible torque shaft to the aircraft accessory of the remote accessory gearbox (RAG). Another group transports share streams of the torque via the PMG propulsion motor multi-stage gearboxes, combined in it.

EFFECT: complex increase of the engine efficiency, increase of the drive gearbox life with lower energy losses and lower wear of the gear ring.

13 cl, 2 dwg