SYSTEM AND METHOD OF OPERATING MULTI-ENGINE SYSTEMA method of operating a multi-engine system of an helicopter includes the multi-engine system having a first turboshaft engine having a first shaft, a second turboshaft engine having a second shaft, a…DRIVE·May 27·2 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
GEARBOX ASSEMBLYA gearbox assembly (746) includes a gear assembly (747) that includes a planet gear (754), a pin (782, 1182) disposed within the planet gear (754), a first sensor (702, 1102), and a second sensor (711…DRIVE·May 27·2 min readFollowF02C7/36GE AVIATION CZECH S R O [CZ]
DRIVE ASSEMBLY AND METHOD OF ASSEMBLYThe torque transfer assembly can have a torque shaft (48, 148, 248) rotatable around a rotation axis (46), the torque shaft (48) having a first end (50) and a second end (52) opposite the first end (5…DRIVE·May 13·2 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
METHOD AND SYSTEM FOR OPERATING AN ENGINE TO PREVENT HIGH POWER ENGINE SURGESMethods and systems for operating an aircraft engine (100) having a compressor are described. The method comprises determining, based on actual operating parameters of the aircraft engine (100), a com…DRIVE·Mar 4·1 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
TURBOMACHINE COMPRISING A SPEED REDUCER HAVING FIXING FLANGES COUPLED BY A GEAR COUPLINGThe invention comprises a speed reducer for a turbomachine (1) for an aircraft, with a longitudinal axis X, the speed reducer comprising an external ring (24) and a ring holder (26) fixed to the exter…DRIVE·Jan 14·2 min readFollowF02C7/36SAFRAN TRANS SYSTEMS [FR]
GEARBOX ASSEMBLY FOR AN AIRCRAFT PROPULSION SYSTEMAn assembly for an aircraft propulsion system includes an output shaft (56) and a gear assembly (62). The gear assembly (62) is configured to drive rotation of the output shaft (56). The gear assembly…DRIVE·Dec 10·2 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
A PORTING MANIFOLDA hydraulic clutch assembly can include a shaft (101) defining a shaft channel (103), one or more hydraulic ports (105) defined through the shaft, and one or more lubrication holes (107) defined throu…DRIVE·Jun 25·1 min readFollowF02C7/36HAMILTON SUNDSTRAND CORP [US]
PLANET CARRIER FOR A SPEED REDUCER OF AN AIRCRAFT TURBINE ENGINECarrier assembly (213) for a speed reducer (10) of an aircraft turbomachine (1), comprising:- a cage holder (222),- a cage (220),characterized in that the cage (220) comprises two parts (220a, 220b):-…DRIVE·May 14·1 min readFollowF02C7/36SAFRAN TRANS SYSTEMS [FR]
COUPLING AND ASSOCIATED METHOD OF TRANSFERRING TORQUEThe coupling (30) can have a female member (32) configured to rotate around an axis, defining an axial recess (36), and having a plurality of connections (52) circumferentially arranged along a radial…DRIVE·May 15·2 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
PLANETARY GEARBOXA planetary gearbox comprising a sun gear, a plurality of planet gears, a ring gear, and a plurality of journal bearing pins, each of the journal bearing pins forming a journal bearing with a planet g…DRIVE·Nov 29·2 min readFollowF02C7/36ROLLS ROYCE PLC [GB]
COMPACT, TWIST CONTROLLED PLANET CARRRIERA planet carrier (40; 140; 240) for an epicyclic gear train (27) of a gas turbine engine gearbox (12) includes a centrally disposed torque transfer coupling (44; 144; 244), a pair of carrier plates (4…DRIVE·Nov 30·2 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
Method for setting a gear ratio of a fan drive gear system of a gas turbine engineA gas turbine engine (20) comprises a fan section (22) including a fan (36) rotatable about an axis and a speed reduction device in communication with the fan (36). The speed reduction device (45) inc…DRIVE·Aug 6·1 min readFollowF02C7/36UNITED TECHNOLOGIES CORP [US]
Systems and Methods for Changing a Speed of a Compressor Boost Stage in a Gas TurbineA system for changing a speed ratio between a compressor boost stage (12) and at least one power turbine (16) of a gas turbine engine (10) comprises a coupling device (20) configured to selectively tr…DRIVE·Jun 5·1 min readFollowF02C7/36PRATT & WHITNEY CANADA [CA]
Motor-generator and prime mover gearing assemblyAn example mechanical transmission assembly (56;156) receives an input (70) rotating at a first rotational speed and provides an output (72) rotating at a second rotational speed. The mechanical trans…DRIVE·Jan 30·1 min readFollowF02C7/36HAMILTON SUNDSTRAND CORP [US]
Gearing assemblyA gearing assembly (52) is provided and includes a mechanical transmission (56), a differential (72), the mechanical transmission (56) and the differential (72) being configured to rotatably couple a …DRIVE·Jan 30·1 min readFollowF02C7/36HAMILTON SUNDSTRAND CORP [US]
Propulsion fan for gas turbine engineA gas turbine engine includes a spool (30), a turbine (46) coupled to drive the spool (30) and a propulsor (42) that is coupled to be driven by the turbine (46) through the spool (30). A gear assembly…DRIVE·Jan 9·1 min readFollowF02C7/36UNITED TECHNOLOGIES CORP [US]
FAN DRIVE GEAR SYSTEM INTEGRATED CARRIER AND TORQUE FRAMEA fan gear drive system includes a torque frame (56) having a base (61) with integrated gear shafts (58) circumferentially spaced relative to one another. Each shaft provides a shaft axis (T). A beari…DRIVE·Oct 31·1 min readFollowF02C7/36UNITED TECHNOLOGIES CORP [US]
Power transmission for a gas turbineThe power transmission comprises a compressor rotor shaft (100), a turbine rotor shaft (200), and a frictional coupling device (320) connected by the compressor and turbine rotor shafts. The coupling …DRIVE·Feb 8·2 min readFollowF02C7/36SIEMENS AG [DE]
Planetary gear reduction systemA planetary gear reduction system (1) has a sun gear (5), a plurality of planet gears (7), a ring gear (9), and a planet carrier (11). The planet carrier (11) has a first plate (17) supporting one end…DRIVE·May 4·2 min readFollowF02C7/36KAWASAKI HEAVY IND LTD [JP]
Planet gear journal for an epicyclic gear systemA planet gear journal (62) for an epicyclic gear system (46) is asymmetrically formed to compensate for carrier twist. The asymmetry may be between a pair of opposed outwardly open annular channels (1…DRIVE·Jul 7·1 min readFollowF02C7/36UNITED TECHNOLOGIES CORP [US]
UNIAXIAL GAS TURBINE SYSTEMThe uniaxial gas turbine system of the present invention has a uniaxial gas turbine, a rotary machine driven by the uniaxial gas turbine, a continuously variable speed transmission of transmitting a d…DRIVE·Nov 5·1 min readFollowF02C7/36KAWASAKI HEAVY IND LTD [JP]
Variable cycle propulsion device using mechanical transmission for supersonic airplanesThe variable cycle engine has a main propulsor (1) generating supersonic flight thrust, and an auxiliary engine (16) generating thrust for take off and landing and subsonic flight. The auxiliary unit …DRIVE·Dec 18·1 min readFollowF02C7/36SNECMA MOTEURS [FR]
