Filter cleaning method
AssigneeBALLASTMARINE Ltd.
InventorRon Tal
Life of this patent
Estimating the term…
Abstract
Apparatus for filter cleaning including a filter element surface (12) to be cleaned, and a cleaning head (10), characterized by a controller (16) operative to move the cleaning head (10) with respect to the filter element surface (12) in a spiral scanning trajectory in such a way that a relative path of the cleaning head (10) with respect to the filter element surface (12) results in a trajectory that fully, or partially covers the filter element surface (12) and is produced by moving the filter element surface (12) in any combination of the following motions: a) one or more circular or semi-circular motions, b) one or more linear motions; while moving the cleaning head (10) in any combination of the following motions: c) one or more circular or semi-circular motions, d) one or more linear motions.
Claims5
Apparatus for filter cleaning comprising:
- a filter element surface to be cleaned;
- a cleaning head;
- and
- a controller configured to move said cleaning head with respect to said filter element surface in a spiral scanning trajectory in accordance with the following equations:
- r∝=√{square root over (α2+2×(R2+R×α)×[1−cos(α)])} (1)
- where
- r∝=Radius of Circular-Motion_2 as function of “α”
- R=Constant radius of Circular-Motion_1
- a=Radius of dead surface
- α=Angle of rotation in Circular-Motion_1
- {dot over (α)}=Angular rotation velocity of Circular-Motion_1
- and said spiral trajectory has a radius rθ defined as:
- rθ=α+RE×θ (2)
- Where
- ω={dot over (θ)}=Angular rotation velocity of Circular-Motion_2
- RE=effective cleaning radius of said cleaning head
- a=Radius of dead surface.
Dependencies are inferred from the claim text.