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AssigneeTeledrill, Inc.
InventorsDaniel Maurice Lerner, Gabor Vecseri, David John Kusko
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Disclosed is an apparatus, method and system comprising one or more devices capable of modulating fluid flow, the fluid being a liquid or a gas resulting in a pressure fluctuation in a fluid flowing within a flow channel, comprising: a flow modulating device that acts as a servo valve such that the device comprises a shaft and a moveable actuator that slides along the shaft, wherein the shaft and the actuator are positioned at any angle within a principal fluid flow channel such that the fluid flows through the principal fluid flow channel. The fluid flowing within the principal fluid flow channel is selectively reversible and the fluid is connected to both an inner pilot flow channel and the principal fluid flow channel wherein the flow modulating device includes a particulate barrier system having at least one seal system comprising an upper outer seal and a lower outer seal prohibiting fluid particulates from entering the inner pilot flow channel and also includes an upper inner seal and a lower inner seal that further prohibit residual particulates from reaching any mating surface between the shaft of the flow modulating device and the upper seal, the upper inner seal, the lower outer seal, and the lower inner seal. The particulate barrier system operates in a fluid flow field wherein the fluid can flow in any direction and utilizes a sealing system wherein an upper outer seal and a lower outer seal prohibit particulates from reaching the respective surfaces of an upper inner seal and lower inner seal of the flow modulating device. An upper inner seal and lower inner seal further prohibit residual particulates from reaching surfaces between the seal and that of the shaft of the flow modulating device.
An apparatus comprising one or more devices capable of modulating fluid flow, said fluid being a liquid or a gas resulting in a pressure fluctuation in a fluid flowing within a flow channel, comprising:
A method for using an apparatus comprising one or more devices capable of modulating fluid flow, said fluid being a liquid or a gas resulting in a pressure fluctuation in a fluid flowing within a flow channel, comprising:
A particulate barrier system comprising an apparatus for modulating fluid flow such that a flow modulating device acts as a servo valve, said flow modulating device comprising a shaft and a movable actuator that slides along said shaft, wherein said shaft and said actuator are positioned at any angle within a principal fluid flow channel such that fluid flows through said principal fluid flow channel and wherein said fluid flowing through said principal fluid flow channel is selectively reversible and wherein said particulate barrier system comprises at least one seal system for said actuator such that an upper outer seal and a lower outer seal act as wipers or scrapers prohibiting particulates from entering near and around an upper inner seal and a lower inner seal.
A seal system comprising an upper outer seal and a lower outer seal wherein said upper outer seal and said lower outer seal are both comprised of a material that is wear resistant and formable to zero tolerance between a seal surface and a mating shaft surface and wherein said upper outer seal and said lower outer seal are arranged so that said upper outer seal and said lower outer seal face in the direction of the applied pressure and away from each other.
Dependencies are inferred from the claim text.