Filtering of a flow of gas/particles
AssigneeSafran Transmission Systems
InventorsLionel Bauduin, Maxence Guillemont, Julien Viel, Stéphane Prunera-Usach
Life of this patent
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Abstract
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.
Claims12
A filtering device to be integrated into a turbine engine for filtering a flow of gas conveying liquid or solid particles in said turbine engine, said device comprising:
- a flow channel comprising a neck extended by an enlargement in a downstream direction,
- a recovery channel having an upstream opening arranged inside the flow channel so as to be substantially aligned with the neck in the downstream extension thereof,
- with the recovery channel and the flow channel being se configured so that a flow allowed to circulate in the recovery channel is less than a flow allowed to circulate in the flow channel,
- wherein obstacles to the flowing of particles are formed in the flow channel downstream from the upstream opening of the recovery channel,
- wherein the obstacles to the flowing of particles comprise a buffer mounted across the flow channel,
- where the buffer comprises several transversal walls successively formed through the flow channel and comprising respective not aligned openings, and said walls include an intermediate wall being formed opposite a duct for the suction of the particles opening into the flow channel.
A device to be integrated into a turbine engine for filtering therein a flow of gas conveying liquid or solid particles in said turbine engine, said device comprising:
- a flow channel comprising a neck extended by an enlargement in a downstream direction,
- a recovery channel having an upstream opening arranged inside the flow channel so as to be substantially aligned with the neck in the downstream extension thereof,
- with the recovery channel and the flow channel being configured so that a flow allowed to circulate in the recovery channel is less than a flow allowed to circulate in the flow channel,
- wherein obstacles to the flowing of particles are formed in the flow channel downstream from the upstream opening of the recovery channel,
- wherein the obstacles to the flowing of particles comprise a buffer mounted across the flow channel,
- wherein the buffer comprises several transversal walls successively formed through the flow channel and comprising respective not aligned openings, and said walls include an intermediate wall being formed opposite a duct for the suction of the particles opening into the flow channel, and,
- wherein particles suction means including a pump are arranged in the recovery channel.
Dependencies are inferred from the claim text.