Messier-bugatti-dowty

Safran Electrical & Power

Societe De Motorisations Aeronautiques

Nl Conseil

Norbert Lartigue

Pierre-Guillaume Phelut

Jérôme Escriva

Hervé Pohier

Bruno Blanc

A sensor is configured to sense the rate of change of a current in order to protect the bridge arms in a power module with power layers and measurement layers. The sensor includes at least three conductors (C, C, Cp) and coils. One end of each conductor is connected to a common node, while the other end of each conductor is used respectively as an electrical terminal. The at least three conductors are contained in the same plane, referred to as the primary plane, while each conductor has a plane of symmetry perpendicular to the primary plane, each plane of symmetry passing through the common node and the corresponding terminal. A first conductor and a second conductor are identical and positioned symmetrically relative to a third conductor, and at least one pair of coils is positioned symmetrically relative to a plane of symmetry.

Sensor which senses the instantaneous rate of change of a current, said speed sensor being galvanically isolated and integrated on a printed circuit board

A roller () having a rigid reinforcement () defining a hub () for rotation of the roller about an axis of rotation X and a plurality of bars () regularly arranged around the hub () and extending parallel to the axis X. The roller further has bushings (), each engaged on a respective one of the bars () and each comprising an outer rigid ring () surrounding a bushing body () made of deformable material.

Drive roller

A drive roller () comprising a central hub (), a body () extending around the central hub, the body () being made of a deformable material, a deformable band () extending over a circumference of the drive roller, and first rigid fins () and second rigid fins () arranged in alternation and extending radially inside the body (). Each first fin presents a proximal end (a) fastened to the central hub, and each second fin presents a distal end (b) that extends in the proximity of the deformable band.

Roller made of compressible material

A cylinder head of an internal combustion engine in which a cooling circuit is arranged, suited for a coolant circulation, includes a peripheral duct surrounding an exhaust valve seat and a peripheral duct surrounding an inlet valve seat communicating by means of a connecting duct; the cylinder head including a first coolant inlet, a second coolant inlet, and an outlet for heated coolant, the second inlet communicating with the connecting duct.

Growing community of inventors

Le Plessis-Robinson, France

Norbert Lartigue