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Safran Transmission Systems patents

Recent patent applications related to Safran Transmission Systems. Safran Transmission Systems is listed as an Agent/Assignee. Note: Safran Transmission Systems may have other listings under different names/spellings. We're not affiliated with Safran Transmission Systems, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Safran Transmission Systems-related inventors

Speed reducer comprising two intermediate transmission lines

The invention relates to a speed reducer having two intermediate transmission lines (4, 5) in particular for a turbine engine, comprising an input line (2) and an output line (3) driven by the input line by means of said intermediate lines, said intermediate lines being substantially in parallel with an axis (b) of rotation of the input line (2), said reducer further comprising means for distributing loads between the intermediate lines (4, 5), characterised in that said distribution means comprise a pinion (7) which is rigidly connected to a shaft (6) of the input line, the input line being movable in translation along said axis (b) and comprising two rings having helical external teeth (7a, 7b), the helices of which are oriented in opposite directions, each cooperating respectively with a pinion (12, 13) of an intermediate line (4, 5). The invention also relates to a turbine engine comprising such a speed reducer and to a method for distributing the loads in such a reducer.. ... Safran Transmission Systems

Gearbox comprising an improved reduction gear

A gearbox for an aircraft turbine engine includes a drive shaft, a secondary drive shaft coupled to the drive shaft with a reduction mechanism, and output shafts, each of which is coupled to the drive shaft or to the secondary drive shaft with a set of ring and pinion gears, wherein the reduction mechanism includes an intermediate shaft, a first end coupled to the drive shaft with a first stage of gears and the second end coupled to the secondary drive shaft with a second stage of gears, and wherein the intermediate shaft is rotatably mounted in the gearbox about the main axis thereof which is oriented substantially perpendicular to the main axis of the drive shaft.. . ... Safran Transmission Systems

Hydrodynamic bearing

To overcome defects in the supply of pressurized lubricant, a hydrodynamic bearing for guiding a shaft (14) includes a stationary outer annular wall, a rotatable inner annular wall (20), and a space (22) between the walls. The outer annular wall comprises an opening for supplying pressurized lubricant to the space so as to form a film of load-bearing fluid. ... Safran Transmission Systems

Method for manufacturing a propeller reduction gear

A method for manufacturing a propeller reduction gear, which includes measuring manufacturing defects of the casing; calculating a first angular play induced at each intermediate gear by the measured manufacturing defects; estimating a second angular play induced at each intermediate gear by deformations of the casing when the reduction gear transmits a threshold torque; calculating a total angular play from the first angular play and the second angular play; and selecting two intermediate gears with a phase difference that compensates for the total angular play.. . ... Safran Transmission Systems

Speed reduction gear comprising two intermediate transmission lines

Speed reduction gear comprising two intermediate transmission lines, in particular for a turbine engine, comprising an input line (12) and an output line that is driven by the input line via said intermediate transmission lines, said intermediate transmission lines being substantially parallel, characterised in that said reduction gear comprises means for distributing loads between said intermediate lines, said load distribution means comprising swiveling coupling means (30) for rotatably coupling one end of the input line, and oil-damping means (40, 50) for damping radial movements of an opposite end of the input line.. . ... Safran Transmission Systems

Equipment support of a turbo machine comprising a reducer with magnetic gears

An equipment support including at least one attachment including an output shaft, an input gear wheel, the input gear wheel being both rotated by the motor shaft at a main speed and also connected to the output shaft of the attachment in order to rotate it at a determined output speed, an input shaft, rotated by the input gear wheel at a determined input speed, and a reducer with magnetic gears, arranged between the input shaft and the output shaft, such that the input speed is different from the output speed.. . ... Safran Transmission Systems

Air-flow circuit for air flow through a bearing enclosure

An air-flow circuit for air flow through a bearing enclosure of a turbine engine, the air-flow circuit including a supply system arranged such as to supply the air into the bearing enclosure; a discharge system arranged such as to discharge at least some of the air from the bearing enclosure; an oil-removal system connected to the discharge system, the oil-removal system being capable of reducing the amount of lubricant contained in the air coming from the discharge system; and a compressor arranged between the discharge system and the oil-removal system, the compressor being capable of increasing the air pressure at the intake of the oil-removal system.. . ... Safran Transmission Systems

Accessory gearbox for gas turbine engine

An accessory gearbox capable of driving the accessory devices of a gas turbine engine, such as an aircraft engine. Said accessory gearbox includes a housing and a plurality of gear wheels having axes that are parallel to one another inside the housing. ... Safran Transmission Systems

Process for maintaining a turbomachine accessory gearbox housing element

The invention proposes a process for maintaining a casting made of magnesium alloy, said casting being a turbomachine accessory gearbox housing or a housing cover, comprising at least one cylindrical surface suitable for receiving a rolling bearing cage, the process being characterized in that it comprises a step (200) that consists in depositing molybdenum on the surface of the casting by plasma spraying.. . ... Safran Transmission Systems

Filtering of a flow of gas/particles

A device for filtering a flow of gas conveying liquid or solid particles in a flow channel. According to the invention, the particles are imparted a speed that is high enough to project same by inertia into the opening of a recovery channel formed inside the flow channel, while the gas from the flow bypasses said opening due to a specific configuration of the flow conditions of a perfect fluid in the flow channel and in the collection channel.. ... Safran Transmission Systems

Housing for driving an apparatus for a turbine engine

A gearbox to be attached to a turbine engine to drive at least one apparatus annexed to the turbine engine, the gearbox including a housing; a power take-off member capable of engaging with a radial shaft of the turbine engine; at least one kinematic chain located inside the housing and capable of transmitting the rotational movement of the power take-off member to at least one rotatable shaft of an apparatus. The kinematic chain includes a first end and a second end. ... Safran Transmission Systems

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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Safran Transmission Systems in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Safran Transmission Systems with additional patents listed. Browse our Agent directory for other possible listings. Page by