Safran Aircraft Engines

Snecma

Gilles Yves Aouizerate

Antoine Robert Alain Brunet

Gerard Philippe Gauthier

Delphine Leroux

Benjamin Boudsocq

Melaine Tanguy Euzenat

Gérard Philippe Gauthier

The invention relates to a heat exchanger () for heat-exchange between a first fluid and a second fluid, comprising a membrane separating the two fluids and a heat-conductive element () in thermal contact with the membrane and with the first fluid, characterised in that said heat-conductive element () moves between an active position and an inactive position, such that the capacity of heat exchange with the first fluid is weaker in the inactive position than in the active position. The exchanger is applied, in particular, for the cooling of fluid in the secondary stream of a turbofan.

Heat exchanger and turbine engine comprising such an exchanger

A jet pump () comprising a tubular body (), a first injection duct () which opens into the body () via a first outlet nozzle (), a second injection duct () which opens into the body () via a second outlet nozzle () which surrounds the first outlet nozzle (), the downstream end () of the second outlet nozzle () being situated axially level with the downstream end () of the first outlet nozzle (), wherein the upstream end () of the first nozzle () comprises an axial orifice () centered on the main axis of the body (), and in that the jet pump () is configured for either plugging or not plugging the axial orifice () of the first outlet nozzle ().

Jet pump for turbomachine lubrication chamber depressurization circuit

A sealing device for an enclosure of a turbine engine formed by an assembly of juxtaposed rotating and/or static bodies is provided. The sealing device includes at least one brush seal having a brush body, carried by at least one first member, and bristles extending from the brush body and arranged so as to rub against at least one second member rotatable relative to the first member, so as to produce a pressure difference between the inside of said enclosure and its outer environment. The device further includes a labyrinth-type seal, the labyrinth being positioned in series with the brush seal between the inside of the enclosure and its outer environment.

Sealing of turbine engine enclosures produced by brush seal and labyrinth

Growing community of inventors

Chennevieres-sur-Marne, France

Gilles Yves Aouizerate