35results about How to "Mass is limited" patented technology

A structural turbine engine casing is disclosed. The casing includes a central hub, at least one intermediate shroud, and an external ring, which are concentric, the external ring and the intermediate shroud being connected via links, the intermediate shroud and the central hub being connected by a series of radially fastened hollow arms. The series of arms includes at least one main arm and at least one secondary arm, each main arm being arranged in the continuation of a link and having a mass which is greater than that of a secondary arm arranged at a distance from the links.

A scintigraphic device includes a case open at an application end, and coated by a shielding shell; a collimator positioned inside the case, made of a material with high atomic number and high density and having a plurality of collimation channels extending mutually parallel according to a predefined direction of measurement; a measuring member positioned inside the case in proximity to the collimator and including a scintillation crystal for converting each ionizing radiation originating from a source in exam into light radiation, and at least one photosensor, for determining the energy and the position of each detected event. The measuring member and the collimator are relatively movable to increase and / or reduce the distance between the converter and the application end and consequently to vary the total length of the collimator. The collimator may include two or more blocks at least one of which is movable relative to the others.

A two dimensional metrological calibration standard includes a plurality of calibration cylinders each having a diameter and a plurality of calibration gauge blocks each having a length, each calibration gauge block being interposed between two of the calibration cylinders, such that end faces thereof are in contact with the walls of adjacent calibration cylinders, the calibration cylinders and calibration gauge blocks as a group are fastened to a flat plate and conjointly form a triangle. Bearing and alignment rulers ensure alignment of the calibration gauge blocks between the calibration cylinders, by contact with the calibration gauge blocks and / or the calibration cylinders, and are fastened to the plate.

A system for supplying a turbomachine with fluid, the supply system including a low-pressure pumping unit intended to increase the pressure of the fluid flowing toward a downstream circuit. The downstream circuit divides at an inlet node, situated between the low-pressure pumping unit and the high-pressure volumetric pump, into a circuit supplying an injection system and a variable geometries supply circuit. The circuit supplying the injection system includes a high-pressure volumetric pump. The variable geometries supply circuit is configured to convey the fluid toward variable geometry from the inlet node to an outlet node connecting the variable geometries supply circuit to the upstream circuit between two pumps of the low-pressure pumping unit.

The invention provides a method for moulding three-dimensional products from a mass of foodstuff starting materials which are suitable for consumption, in particular a meat mass. The method comprises the steps of filling a mould cavity, which is open on one side, with the mass of foodstuff starting materials which are suitable for consumption, which mould cavity is defined by a boundary comprising walls and base, in order to mould a moulded three-dimensional product, and the removal of the moulded three-dimensional product from the mould cavity. In the method according to the invention, during removal the adhesion forces between the moulded product and the boundary are eliminated virtually simultaneously along all the interfaces.

According to one aspect, the invention relates to a microbolometer array for thermal detection of light radiation in a given spectral band, comprising a supporting substrate and an array of microbolometers (300) of given dimensions, arranged in an array. Each of said microbolometers comprises a membrane (301) suspended above said supporting substrate, said membrane consisting of an element (305) for absorbing the incident radiation and a thermometric element (304) in thermal contact with the absorber, electrically insulated from said absorber element. The absorber element comprises at least one first metal / insulator / metal (MIM) structure comprising a multilayer of three superposed films of submicron-order thickness i.e. a first metallic film (311), a dielectric film (310), and a second metallic film (309), said MIM structure being able to have a resonant absorption of said incident radiation at at least one wavelength in said spectral band. The area of the microbolometer pixel covered by said membrane (301) is less than or equal to half of the total area of the microbolometer pixel.

A drive has a drive unit, wherein the drive unit includes a central body, a drive means, and a driven means circulating around the central body. Conveyor means or objects to be conveyed are able to be conveyed in a driven section of the drive unit along a conveyor path by way of the driven means. The driven means is mounted with respect to the central body by means of a roller body which circulates around the central body in an orbital track. To this end, the driven means rolls on the central body via rollers of the roller body and thereby the roller body transmits radial pressure forces to the central body. The driven means is driven directly by the drive means. The roller body itself is not driven directly by the drive means, but rather it is moved along solely by the rolling of the driven means on the roller body.

A two dimensional metrological calibration standard includes a plurality of calibration cylinders each having a diameter and a plurality of calibration gauge blocks each having a length, each calibration gauge block being interposed between two of the calibration cylinders, such that end faces thereof are in contact with the walls of adjacent calibration cylinders, the calibration cylinders and calibration gauge blocks as a group are fastened to a flat plate and conjointly form a triangle. Bearing and alignment rulers ensure alignment of the calibration gauge blocks between the calibration cylinders, by contact with the calibration gauge blocks and / or the calibration cylinders, and are fastened to the plate.

A drive has a drive unit, wherein the drive unit includes a central body, a drive means, and a driven means circulating around the central body. Conveyor means or objects to be conveyed are able to be conveyed in a driven section of the drive unit along a conveyor path by way of the driven means. The driven means is mounted with respect to the central body by means of a roller body which circulates around the central body in an orbital track. To this end, the driven means rolls on the central body via rollers of the roller body and thereby the roller body transmits radial pressure forces to the central body. The driven means is driven directly by the drive means. The roller body itself is not driven directly by the drive means, but rather it is moved along solely by the rolling of the driven means on the roller body.

The invention provides a mechanism for attenuating torque pulsations between an engine (2) and a rotor (1) of a rotorcraft. Torsion means (5) are interposed between the driving and driven shafts and comprise a torsion shaft (6) axially engaged with the drive shaft (3) and the driven shaft (4) an inlet shaft (9) and an outlet shaft (10) respectively engaged with the drive and driven shafts (3, 4) a lever system (7) that extends radially relative to the torsion shaft (6) and that has the inlet and outlet shafts (9, 10) hinged thereto via points (11, 12) that are spaced apart; and a mass (8) carried by said lever arm (7) at its free end (13) radially farthest away from the axis along which the torsion shaft (6) extends.

The invention provides a chemical-amplification positive-working photoresist composition suitable for forming a resist film of a relatively large thickness on a substrate in addition to other advantages. The inventive composition contains (A) a photoacid-generating agent, (B) an alkali-insoluble resin capable of being imparted with increased alkali-solubility by interaction with an acid, (C) an alkali-soluble resin and (D) an organic solvent, wherein the component (C) is (C1) a polyhydroxystyrene or a copolymer having at least 80% by mass of the hydroxystyrene units in an amount not exceeding 15 parts by mass relative to 100 parts by mass of the total amount of the components (B) and (C).

An infrared imaging micro-bolometer integrates a membrane assembled in suspension on a substrate by support arms. The membrane includes an absorbing material configured to capture infrared radiations and a thermometric material connected to the absorbing material configured to perform a transduction of the infrared radiations captured by the absorbing material The thermometric material is arranged on a surface area smaller than 0.4 times a surface area of the membrane. The membrane also includes at least one central dielectric layer arranged between the absorbing material and the thermometric material. Recesses are formed in the absorbing material and in the at least one dielectric layer in portions of the membrane devoid of the thermometric material.

An assembly for gas turbine, includes a first part and a second part installed circumferentially around a longitudinal axis of the turbine, where the first part has a first side face adjacent to a second side face of the second part, and where a first aperture made in first side face is facing a second aperture made in second side face, a sealing plate fitted inside the first aperture and the second aperture, at least one longitudinal face of the sealing plate includes at least two projections made either side of a longitudinal central area of the sealing plate, wherein each projection is of a height chosen so as to reduce a clearance between the sealing plate and the first and second apertures.

An assembly for gas turbine, includes a first part and a second part installed circumferentially around a longitudinal axis of the turbine, where the first part has a first side face adjacent to a second side face of the second part, and where a first aperture made in first side face is facing a second aperture made in second side face, a sealing plate fitted inside the first aperture and the second aperture, at least one longitudinal face of the sealing plate includes at least two projections made either side of a longitudinal central area of the sealing plate, wherein each projection is of a height chosen so as to reduce a clearance between the sealing plate and the first and second apertures.

A body structure of a motor vehicle includes two substantially parallel longitudinal reinforcing side members, a body side superstructure connected to the side members, rising above the side members and defining, on either side of the vehicle, two wheel arch housing portions of the vehicle. The two wheel arch housing portions are connected by a floor portion of the vehicle, offset vertically relative to the side members and positioned above the side members. The structure also includes at least one rear shock absorber attachment cup at each wheel arch housing portion. The at least one rear shock absorber attachment cup is assembled to the side superstructure, and assembled to a side member by a raising part connecting the cup and only a portion of the side member, having a width, measured in a longitudinal direction of the vehicle, substantially equal to that of the cup.