Filter device
AssigneeThomas Josef Heimbach GmbH & Co.
InventorsWalter Best, Uwe Schumacher
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Abstract
The invention describes a filter device having filter elements (2 through 6; 12 through 20; 22 through 25) made of ceramic material which are combined into at least one filter element group (1, 11, 21) in which the filter elements (2 through 6, 12 through 20; 22 through 25) lie side by side next to one another and can be flowed through in parallel, which is characterized in that only some of the filter elements (2, 12, 22, 23) of each filter element group (1, 11, 21) have electrical terminals for connection with an electrical energy source, and at least that/those filter element(s) (2, 12, 22, 23) is/are made of electrically conductive ceramic material.
Claims30
A filter device having filter elements made of ceramic material which are combined into at least one filter group, wherein said filter elements lie side by side next to one another and can be flowed through in parallel,
- wherein some of said filter elements of said filter element group have electric terminals for connection with an electrical energy source, and at least one of said filter elements is made of electrically conductive ceramic material,
- wherein said filter elements comprise first filter elements having electrical terminals, and second filter elements not having electrical terminals, said first filter elements being arranged at the center of said filter group.
A filter device having filter elements made of ceramic material which are combined into at least one filter group, wherein said filter elements lie side by side next to one another and can be flowed through in parallel,
- wherein some of said filter elements of said filter element group have electric terminals for connection with an electrical energy source, and at least one of said filter elements is made of electrically conductive ceramic material,
- wherein said filter elements comprise at least one first filter element having electrical terminals, and at least one second filter element not having electrical terminals,
- wherein said first filter element is surrounded by said second filter elements.
A filter device having filter elements made of ceramic material which are combined into at least one filter group, wherein said filter elements lie side by side next to one another and can be flowed through in parallel,
- wherein some of said filter elements of said filter element group have electric terminals for connection with an electrical energy source, and at least one of said filter elements is made of electrically conductive ceramic material,
- wherein said filter elements comprise first filter elements having electrical terminals, and second filter elements not having electrical terminals,
- wherein said second filter elements are comprised of non-conductive material.
A filter device having filter elements made of ceramic material,
- the filter elements being combined into at least one filter element group, said filter elements in said filter element group being positioned adjacent to one another, so that said filter elements are exposed to parallel flow, the filter element group comprising at least one first filter element, and at least one second filter element,
- said first filter element being comprised of electrically conductive ceramic material, and having electrical terminals for connection to an electrical energy source,
- said second filter element comprised of ceramic material which is not electrically conductive or has a lower electrical conductivity than the ceramic material of said first filter element.
A filter device having filter elements made of ceramic material,
- the filter elements being combined into at least one filter element group, said filter elements in said filter element group being positioned adjacent to one another, so that said filter elements are exposed to parallel flow,
- the filter element group comprising at least one first filter element, and at least one second filter element,
- said first filter element being comprised of electrically conductive ceramic material, and having electrical terminals for connection to an electrical energy source,
- a contact layer separates said first filter from said second filter elements, said contact layers having an electrical conductivity that is less than the electrical conductivity of the ceramic material forming said first filter element.
Dependencies are inferred from the claim text.