Filter device and filter element
AssigneeRt-Filtertechnik GmbH
InventorsUwe Fries, Carsten Grobe
Life of this patent
Estimating the term…
Abstract
A filter device, especially intended for incorporation into a fluid reservoir tank, has at least one, preferably exchangeable, filter element (18) having element material (20) through which a fluid can flow from the inside outward, viewed in radial direction, and encompassed by a support tube (36) with passage orifices. The support tube is surrounded with a fluid flow space defined by a housing wall of a housing and has a plurality of passage sites. At least some of the passage orifices in the support tube (36) of the filter element (18) have a flow-directing device (80) that impart a flow direction other than the radial flow direction to the fluid.
Claims10
A filter device, comprising:
- a filter housing being mountable in a fluid supply tank and having a housing wall with a plurality of fluid passage points;
- a filter element being mounted in said filter housing and having an element material though which fluid to be filtered can flow from an inside of said element material to an outside of said element material in a radial flow direction relative to a longitudinal axis of said element material;
- a fluid inlet in direct fluid communication with said inside of said element material;
- a support tube enclosing said element material and being surrounded at a radial distance by said housing wall defining a flow space radially between said support tube and said housing wall relative to said longitudinal axis;
- and
- first and second passage openings in said support tube, each of said first passage openings having a flow guide providing filtered fluid passing therethrough with a flow direction different from the radial flow direction and with a swirl flow only circumferentially and axially about said support tube in said flow space such that the filtered fluid only flows circumferentially and axially about said support tube throughout said flow space from said first passage openings.
Dependencies are inferred from the claim text.