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

Microbolometer array with improved performance

ActiveUS20140226021A1Area coveredWithout decreasing absorption areaTelevision system detailsSolid-state devicesMicrobolometerSpectral bands
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.
Owner:CENT NAT DE LA RECHERCHE SCI +2

Structural turbine engine casing

The invention relates to a structural turbine engine casing (9) comprising a central hub (10), at least one intermediate shroud (20) and an external ring (30), which are concentric, the external ring and the intermediate shroud being connected via links (21, 24, 28), the intermediate shroud and the central hub being connected by a series of radially fastened hollow arms (11-19), wherein the series of arms comprises at least one main arm (11, 13, 18) and at least one secondary arm (12, 14, 15, 16, 17, 19), each main arm (11) being arranged in the continuation of a link (21) and having a mass which is greater than that of a secondary arm (12) arranged at a distance from the links (21, 24).
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

Washcoated particulate filter substrate

An apparatus comprises a particulate filter substrate for an internal combustion engine, the filter substrate is coated at least in part with a washcoat, and the washcoat comprises a relatively high density material having a density of at least 3.50 gcm−3.
Owner:JOHNSON MATTHEY PLC

Air intake structure for a turbine engine nacelle

InactiveUS20110192134A1Increased structure resistanceLimiting associated mass gainAircraft power plant componentsEfficient propulsion technologiesNacelleAirflow
The invention relates to an air intake structure (4) for a turbine engine nacelle for directing an air flow towards the fan of the turbine engine, said structure comprising at least one outer panel (40), at least one inner panel (41) and an air intake lip (4a) having an inner wall (70) to be in contact with the air flow flowing into the turbine engine and a partition (45) separating the air intake lip (4a) from the rest of the nacelle, the air intake lip (4a) having an extension (60) that can be fastened onto the inner panel (41) and that extends substantially as a continuation of the inner wall (70) towards the downstream side of the air intake structure over a length (I) at least equal to about the maximum distance (d) between the partition (45) and the air intake lip (4a). The invention also relates to a nacelle for a turbine engine comprising such an air intake structure (4).
Owner:AIRCELLE

Satellite comprising electrical propulsion means, method for placing such a satellite in a station and method for keeping said satellite in its station

A satellite, intended to be placed in a station in orbit about a celestial body, including a first electrical thruster of orientatable thrust direction, a second electrical thruster of orientatable thrust direction, and an electrical thruster of fixed orientation that is fixed with respect to the satellite and of line of thrust passing through the center of gravity of the satellite. The satellite includes two electrical-thruster power units and an electrically interconnecting network connecting a first power unit to the first thruster of orientatable thrust direction and to the thruster of fixed orientation, and connecting a second power unit to the second thruster of orientatable thrust direction and to the thruster of fixed orientation. Each of the power units is configured to power either the associated thruster of orientatable thrust direction or the thruster of fixed orientation.
Owner:AIRBUS DEFENCE & SPACE

Positive-working photoresist composition for thick film formation

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).
Owner:TOKYO OHKA KOGYO CO LTD

Method and moulding devices for moulding three-dimensional products

The invention provides a method for molding 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 mold cavity, which is open on one side, with the mass of foodstuff starting materials which are suitable for consumption, which mold cavity is defined by a boundary comprising walls and base, in order to mold a molded three-dimensional product, and the removal of the molded three-dimensional product from the mold cavity. In the method according to the invention, during removal the adhesion forces between the molded product and the boundary are eliminated virtually simultaneously along all the interfaces.
Owner:STORK TITAN

Two-dimensional metrological calibration standard

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.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Variable geometries fluid supply circuit for a turbomachine without volumetric pump

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.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

Golf practice and exercise device

A golf practice and exercise device having a frame with a horizontally projecting arm spaced from a base or from the ground and from which is suspended by a cord an object that may take various forms, such as similar to a standard softball, a teardrop-shaped punching bag, a body punching bag, or any other suitable form. The object is positioned with a clubhead impact surface in position for striking by the clubhead of a golf club being swung by a golfer. The impact surface is sufficiently large that a golfer need not concentrate on striking a small target as is required when swinging at a golf ball. The mass of the object is sufficient to provide substantial resistance to the impact of a golf club to impose muscle strain on the golfer for muscle development, but is limited in mass to allow the head of the golf club to swing the object sufficiently for the golf clubhead to ultimately pass under the object and allow the golfer to complete the follow-through of the golf swing. In an alternate form, the object to be struck rests on the ground and is attached to a flexible cord which, in turn, is attached to a spike, secured in the ground. The cord and spike provide a limit to the distance the object will move so that the device can be used in a restricted space.
Owner:SHIODA YOSHIHIKO

Mechanism for attenuating torque pulsations between an engine and a rotorcraft rotor driven by the engine

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.
Owner:EUROCOPTER

Two-dimensional metrological calibration standard

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.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Fuel-cell stack comprising a stack of cells and bipolar conductive plates

A fuel-cell stack including a stack of fuel cells with intermediate conductive bipolar plates. The bipolar plates include internal flow channels for flow of a heat-transfer fluid. The channels are connected to a circuit of a cooling system. Only some of the bipolar plates include internal flow channels that are temporarily or permanently not in service.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Split armature relay

The invention relates to a toe-in actuator (16), in particular a relay for an electric starter device (10) for internal combustion engines, said toe-in actuator providing a movable armature (168) and an armature return element (171) in a housing (156). The armature (168) is split into at least two armature parts (216, 218), and at least one damping element (220, 220a, 220b, 220c, 220d) is provided between the at least two armature parts (216, 218).
Owner:SEG AUTOMOTIVE GERMANY GMBH

Low Thermal Capacity Micro-Bolometer and Associated Manufacturing Method

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.
Owner:LYNRED

Injection system for turbomachine, comprising a swirler and mixing bowl vortex holes

An injection system for a turbomachine combustion chamber includes a swirler and a mixing bowl. The mixing bowl includes a converging frustoconical portion and a diverging frustoconical portion. The diverging frustoconical portion is connected to the converging frustoconical portion, forming a continuous aerodynamic profile with the converging frustoconical portion. The diverging frustoconical portion is passed through by vortex holes which each includes a circumferential component around a longitudinal axis of the injection system and an axial component along the longitudinal axis of the injection system.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

Assembly for gas turbine, associated gas turbine

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.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

Novel dyes with phosphinic acid, phosphinate, phosphonate and phosphonamidate substituents as auxochromic groups and methods for preparing the same

Compounds of formula I are disclosed:wherein X1, X2, X3, X4 are independently H, F, Cl, Br, I, CN, NO2, OR1, SR1, NR1R2, COR1, COOR1, CONR1R2, PO3R1R2, SO2R1, SO3R1 or R3; R1 and R2 are, e.g., H, alkyl or aryl or optionally a ring; R3 is, e.g., alkyl, alkenyl, alkynyl, aryl or cycloalkyl; Y is OR1, NR1R2, or NR1R3; Q is O, S, SO2, NR, C(R3)2, Si(R3)2, Ge(R3)2, P(═O)R3 or P(═O)OR3; Q and X1 can optionally form part of a ring; L and M are independently OR1, SR1, NR1R2 and R3; L and M can optionally form part of a ring; Z is O, S, NR1, CR1R3 or aryl; and Z and X4 can optionally form part of a ring.
Owner:MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN EV

Collapsible vertical-axis wind turbine

A collapsible wind turbine includes a turbine with a vertical axis (A). The turbine is supported by a vertical pylon, pivotably mounted about a hinge, and by linking members connecting the rotation shaft of the turbine to the pylon while maintaining a separation therebetween. The wind turbine includes: —an electricity generator of which the axis of rotation is perpendicular to the longitudinal axis of the pylon, the generator being secured to the ground; and—at least one flexible link connecting and synchronising the rotation of the generator with the rotation shaft of the turbine by linear travel of the flexible link in a closed-circuit path, so as to drive the rotation shaft of the generator by the movement of the turbine. The present structure is, in particular related to land-based wind turbines in a cyclone-prone area.
Owner:CENT NAT DE LA RECHERCHE SCI +1

Body structure of a motor vehicle with reinforcements for distributing the forces linked to a rear shock absorber of the vehicle

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.
Owner:RENAULT SA

Recirculation of lubricant in a turbomachine rolling-element bearing

Rolling-element bearing for a turbomachine of an aircraft, comprising an inner ring (3) defining a first raceway (112), and an outer ring (4) defining a second raceway (124), characterized in that the bearing has at least one loop circuit (21, 22) for forced recirculation of lubricant, this loop circuit comprising a first recirculation circuit (21) comprising at least one lubricant inlet (1200) located on the second raceway (124), and connected by at least one duct (120, 166) created in the outer ring (4) to at least one lubricant outlet (1661) which discharges into a second recirculation circuit (22) of the loop circuit (21, 22), this second recirculation circuit (22) comprising at least one duct (152, 1134, 1136; 1135, 1136) created in the inner ring (3).
Owner:SAFRAN POWER UNITS
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