Societe Nationale D'etude Et De Construction De Moteurs D'aviation

Hispano Suiza

Henry Roger Leclerc

Laurent Hodinot

Denis J Sandelis

Claude M Maillard

Daniel Germain Kettler

Jean-Paul D Alary

Guy D'Agostino

Pierre M Schroer

Andre Dhainaut

Guy d'Agostino

David Maillard

Sylvain Poitout

Daniel Germain Alexis Kettler

Jean-Paul Yvon Bares

This invention relates to a device for measuring the position of a piston () in a cylinder (), extending according to an axis, the device comprising at least two position sensors () respectively comprising: a first sensor member () integral with a supporting pallet () linked to the piston (), a second sensor member () integral with the cylinder (), the first and second members of each sensor being arranged for being mobile in translation one relative to the other, along an axis parallel to the axis of the cylinder (), the device being characterized in that the first sensor members () are integral with the same supporting pallet () being linked to the piston () by a ball joint link (). Using the device of this invention, a position sensor can be arranged in the cylinder, without having the transversal strains on the piston being transmitted to it, while the piston remains free in rotation about the axis of the cylindrical barrel.

Device for measuring the position of a piston in a cylinder

A fuel metering unit in a turbomachine is connected between a high pressure pump which draws fuel from a fuel tank and a plurality of fuel injectors disposed in a combustion chamber of the turbomachine, the unit comprises a meter which receives the fuel for injection from a regulator valve at a pressure Pand delivers it at a pressure Pto said plurality of injectors via a stop valve, said regulator valve serving to recirculate fuel back to said high pressure pump as a function of the pressure difference between pressures taken directly from the terminals of the meter and injected into two end inlets of the regulator valve.

Fuel metering unit with a compensated regulator valve in a turbomachine

In a turbomachine, there is provided a fuel metering unit having a cylindrical outer sleeve containing a distributor cylinder in which a metering piston can be moved linearly under the action of a control element. The cylindrical sleeve has an inlet orifice for admitting fuel under pressure and at least one outlet orifice for injecting fuel into a combustion chamber of the turbomachine, and the metering piston has an annular gap forming a distribution chamber for the fuel admitted via the inlet orifice and delivered via at least one outlet orifice. According to the invention, the distributor cylinder has a plurality of radial feed orifices for admitting fuel into the distribution chamber and at least a first metering orifice and at least a second metering orifice that are separated by a seal disposed at the periphery of the distributor cylinder.

Fuel metering unit with two integrated outlet ports

The present invention relates to a system for cooling a high power fuel injector of a dual fuel injector wherein the system comprises a first fuel supply circuit having a first conduit connecting a fuel feed supply and the high power fuel injector, the first conduit having a terminal end adjacent to a distal end of the high power fuel injector, and a second conduit connecting the terminal end of the first conduit to the low power fuel injector such that all of the fuel supplied to the low power injector first passes through the high power fuel injector. The system also has a second fuel supply circuit, separate from the first fuel supply circuit, which comprises a third conduit connecting the fuel feed supply and the fuel injection orifices of the high power fuel injector so as to supply fuel to the fuel injection orifices.

System for cooling a high power fuel injector of a dual injector

A device for transmitting simultaneously to two parallel rods a motion with a single degree of freedom as a longitudinal translational motion from a sleeve surrounding the rods and which is itself subject to first and second degrees of freedom, a translational and a rotary motion, which includes a plate interconnecting the ends of the parallel rods, the plate lying perpendicularly to the axis of translational motion of the rods, and a connecting mechanism between the plate and the sleeve such that the connecting mechanism is adapted for transmitting only the translational motion to the plate.

Devices forming parts of regulatory systems for providing an output in

A compound seal for affecting a seal on a translating shaft movable within a sleeve to separate high pressure and low pressure zones. The compound seal includes a sealing member and a clamping member disposed in a groove formed in one of the elements. The sealing member defines sealing sides which cooperate with one of the sides of the grooves and with the other of the elements. The clamping member cooperates with the bottom and the high pressure side of the groove, and with the sealing member so as to exert a force thereon extending substantially along the bisector of an angle defined by the sealing sides.

Growing community of inventors

Juvisy sur Orge, France

Henry Roger Leclerc