In the layout of two concentric shafts (15,16) a sleeve (38) surrounding the shafts carries two sealing joints (23,39). A bearing (18) supports the external line of shafts near the front end and a bearing retaining nut (19) is screwed on the front end. A s...

The double flow turbojet comprises an intermediate structural casing (9) between the primary (2) and secondary (3) ducts which is located axially between low pressure (5) and high pressure (7) compressors. Discharge means allowing diversion of a part of th...

The low thrust cryotechnic propulsion module has a principal propulsion unit (10) and secondary propulsion unit (21,22) controlling altitude. There are two sets of reservoirs (31 to 34) of cryogenic feed, controlled by intermittent pressure controls (71,72...

Fuel injection system in a turbomachine, comprising a high-pressure pump (10) for pressurizing fuel from a fuel tank (12) to a high pressure P1, a plurality of fuel injectors (16) arranged in a combustion chamber of the turbomachine (18), and a metering de...

The invention relates to a device for centering a tube (3) or a component inside a hollow shaft (2) of a turbine in a turbomachine, this tube (3) or component being rotationally secured to said shaft (2) at its ends, this device comprising a sleeve (9) sec...

The noise produced on a blower by the interaction of moving blades (1) with fixed blades downstream may be reduced by injecting compressed air jets (14) upstream of the moving blades. The compressed air is taken from the primary flow (12) and fed to a ring...

A spool (30) moves in a compartment (11) based on the forces exerted on the spool by a spring and the fuel pressure applied to the top (12) and bottom (14) chambers and the upper (15) and lower (16) intermediate half chambers, causing a shoulder (33) to va...

The invention proposes a turbomachine (1) comprising a device for supplying pressurized gas, the gas (52) being drawn from the compressor (10) through a sampling orifice (51) and cooled in a cooling cavity (53). Such a turbomachine (1) is remarkable in tha...