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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4. Отображено 4.
02-01-2020 дата публикации

Fluidized Powder Valve System

Номер: US20200002148A1
Автор: Lawver Steven, Rowland Roderick, Zahrah Tony F.
Принадлежит: MATSYS INC.

A device is provided for the controlled and precise delivery of powders, including cohesive powders, based on a fluidization technique to directly reduce inter-particle friction and using a fluidizing gas as an air-bearing. The device preferably includes no moving parts, no sealing gaskets or sealing surfaces. Unlike mechanically actuated valves, the powders dispensed by the current device do not experience mechanical shearing, thereby reducing wear and thus increasing the service life of the apparatus. 1. A device configured for the delivery and metering of powders or granular materials , comprising:an extension or container configured for holding the powders or granular materials to be dispensed,a fluidization funnel assembly, wherein the extension or container is operatively connected to the fluidization funnel assembly; anda fluidization stop valve assembly which is surrounded by an aperture or gap separating the fluidization funnel assembly and the fluidization stop valve assembly,wherein in a dispensing operation, the fluidization funnel assembly is configured to receive the powders or granular materials from the extension or container and lead the received powder or granular materials to the fluidization stop valve assembly, andwherein the dispensing operation is performed without any mechanical movement of parts.2. The device of claim 1 , configured such that the powders or granular materials are statically immobile when at rest claim 1 , and such that powder flow is initiated upon the application of a gas pressure and flow rate to the fluidization funnel assembly and/or the fluidization stop valve assembly.3. The device of claim 1 , wherein the fluidization funnel assembly comprises a valve body claim 1 , a porous funnel and funnel opening claim 1 , wherein a cavity between the valve body and porous funnel is configured to act as a gas conduit for the fluidization.4. The device of claim 1 , wherein the aperture or gap separating the fluidization funnel ...

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Номер записи: 1
13-02-2003 дата публикации

Gas assisted flow tube and filling device

Номер: US20030031749A1
Автор: Phillip Parrish, Rajkumar Raman, Roderick Rowland, Tony Zahrah
Принадлежит: Matsys

A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which permits the gas to flow through the particulate material and out a vent screen so that the particulate material is permitted to flow out of the fluidizing chamber essentially free of gas and wherein the pressure of the gas delivered to the fluidizing chamber is sufficient to provide a gas bearing to said particulate material adjacent the distributor plate, but not high enough to cause turbulence in said fluidizing chamber.

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Номер записи: 2
20-07-2004 дата публикации

Fluidizing method and apparatus

Номер: US6764296B2
Автор: Phillip A. Parrish, Rajkumar Raman, Roderick Rowland, Tony F. Zahrah
Принадлежит: Matsys

A fluidizing method transports particulates by gravity flow but passes the particulates through a fluidizer which is partitioned by a porous distributor plate to form first and second chambers and wherein the particulate materials pass through said first chamber which is in gaseous communication with said second chamber via the porous distributor plate. Gas is delivered to the second chamber at a pressure sufficient to generate a gas bearing between the porous distributor plate and the particulate material. The gas is permitted to migrate through the particulate material, but it is then vented to the surrounding atomosphere without causing substantial turbulence in the particulate material and to reduce tendencies for dusting and separation of the particulates into sizes.

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Номер записи: 3
26-11-2002 дата публикации

Gas assisted flow tube and filling device

Номер: US6485284B1
Автор: Phillip A. Parrish, Rajkumar Raman, Roderick Rowland, Tony F. Zahrah
Принадлежит: Matsys

A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which permits the gas to flow through the particulate material and out a vent screen so that the particulate material is permitted to flow out of the fluidizing chamber essentially free of gas and wherein the pressure of the gas delivered to the fluidizing chamber is sufficient to provide a gas bearing to said particulate material adjacent the distributor plate, but not high enough to cause turbulence in said fluidizing chamber.

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Номер записи: 4