Abstract: A fan module for an aircraft turbomachine includes a fan with a disc carrying fan blades and a rotor of an electric machine. The rotor has an annular shape and is mounted coaxially downstream of the fan. The module further includes an annular support for the rotor with a downstream end fixed to the rotor and with an upstream end fixed to the fan disc. The support is fixed to the disc by shear bolts configured to break when a torque transmitted by the disc to the support exceeds a predetermined threshold.

Abstract: A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.

Abstract: A valve comprises a valve body, a flap, and a shaft driving the flap. At least one first bearing guides a first end of the shaft. The first end of the shaft includes an inner housing emerging axially. The first bearing includes a barrel axially engaged in the inner housing, such that no accumulation of condensates can occur in the inner housing when the first end of the shaft points downward.

Abstract: A valve comprises a valve body, a flap, and a shaft driving the flap. At least one first bearing guides a first end of the shaft. The first end of the shaft includes an inner housing emerging axially. The first bearing includes a barrel axially engaged in the inner housing, such that no accumulation of condensates can occur in the inner housing when the first end of the shaft points downward.

Abstract: The present invention relates to a device for locking the pitch of the blades of a main rotor of a rotary-wing aircraft in which each blade is firstly rotated about an axis of rotation of the rotor by a rotor mast and is secondly constrained to pivot about a longitudinal pitch axis of the blade together with a pitch lever which is controlled by a pitch link connected to a rotary plate rotating with the rotor mast and belonging to a cyclic swash plate mechanism in which the rotary plate is rotatably mounted on a non-rotary plate capable of sliding axially along said rotor mast and of tilting in any direction relative to the rotor mast under the drive of at least three servo-controls each comprising a body fixed on a support secured to the aircraft and a rod having a free end secured to the non-rotary plate. The device includes immobilization means for holding the rod of each of the servo-controls relative to the corresponding body so as to lock the blades in a predetermined pitch position.

Abstract: An apparatus is provided which promotes and enhances the development of microorganisms in the ground, which microorganisms are indispensible for promoting the growth of vegetation, including plants and trees, by recycling water and circulating air to the zone in which the roots of the vegetation are located. The apparatus includes a relatively severely flared, frustoconical skirt portion which is adapted to cap the roots of vegetation within the ground. It also incorporates a small, generally cylindrical collar which extends above the ground and which surrounds the trunk of the vegetation being protected. A plurality of drains, formed by channels along the interior surface of the skirt and collar, extend over the length of generatrices of the apparatus and serve to conduct water and air to the roots of the vegetation. The apparatus is formed by two identical members, each of which has a dimension greater than one-half of the collar and one-half of the skirt.

Abstract: The substance results from the combination of an old cooled manure of which the fermentation is terminated, seeded with fresh animal dejections, particularly from sheep. This mixture is slightly wetted and held in an air-tight chamber, for example in thick plastic envelope, perfectly sealed, and at a mean temperature. Said substance, which is like a compost, is of a dark color without any particular smell, slightly pasty, releasing a blackish juice when it is sprinkled with water, after having deposited said substance on the soil at the foot of the vegetable to be treated.

Abstract: Polyhedral welded metal container each dihedron of which has its two flat adjacent side walls tangentially connected to each other by a round concave cylindrical wall portion consisting of several superposed curved concentric plates the aggregate thickness of which is at most equal to that of the single metal sheet of a side wall so as to be joined to the latter in flush relationship therewith.