Filtration apparatus and process
OwnerJulius James Jablonskyinventor
Life of this patent
Estimating the term…
Abstract
Performance of a rotating filter element for removing particulate matter from a liquid is enhanced by applying acoustic energy in the ultrasonic frequency range to the filter element by plural transducers affixed to the exterior of a bowl surrounding the rotating filter element. The bowl and filter element can be electrically isolated from each other and connected to a D.C. power supply for further enhancement of filter performance. The ultrasonic transducers, the power supply, and a discharge valve can all be operated by a controller, responsive to a sensor which senses the pressure drop across the filter element.
Claims7
Filtration apparatus comprising a bowl having a fluid inlet port, a filter element situated inside the bowl, said filter element being hollow and having an interior space, and being mounted for rotation about an axis, driving means for rotating said filter element about said axis, a fluid outlet port in communication with the interior of the filter element, and at least one ultrasonic transducer arranged to direct acoustic energy at an ultrasonic frequency toward said filter element.
Filtration apparatus comprising a bowl having a fluid inlet port, an electrically conductive filter element situated inside the bowl, said filter element being hollow and having an exterior surface and an interior space, and being mounted for rotation about an axis, driving means for rotating said filter element about said axis, a fluid outlet port in communication with the interior of the filter element, a fluid outlet port in communication with a space within said bowl but external to said filter element, an electrode external to said filter element, and an electrical power supply coupled to said electrode, and to said filter element, for establishing an electrical potential difference between said electrode and the exterior surface said filter element.
A process for filtration comprising passing a fluid inwardly through a hollow, rotating, filter element, and simultaneously directing acoustic energy at an ultrasonic frequency toward said filter element.
A process for filtration comprising passing a fluid inwardly through a hollow, rotating, electrically conductive, filter element, and simultaneously establishing an electrical potential difference between said filter element and an electrode external to the filter element, and separated from said filter element by said fluid.
Dependencies are inferred from the claim text.