Compact cyclonic separation device
View Patent ↗A cyclonic separation device for a vacuum cleaner including a cylindrical separation container, an inlet tube parallel to the axis of the chamber having a vortex vane disposed axially in the inlet tube. Air rotates in one direction in the inlet tube, and preferably in the opposite direction in the separation chamber tube. The separation chamber includes a cylindrical sidewall with an upper central outlet tube and a closed bottom for collecting separated dirt. A disrupter ring located on the inside wall of the middle portion of the separation chamber includes a curved surface and sharp edge for lifting air flow off the chamber wall. A outlet tube disc spaced from the inlet of the outlet tube is located in the chamber below the disrupter ring.
1. A cyclonic separation device for a vacuum cleaner operatively connected to a vacuum source, comprising:
a cylindrical separation chamber having a central axis, an inlet at the upper portion, an outlet at the top and a closed bottom;
an inlet tube having an inlet opening and outlet opening positioned adjacent the separation chamber with an axis of the inlet tube substantially parallel to the central axis of the separation chamber;
a vortex vane positioned in the inlet tube causing inlet air to circulate axially;
a transfer region adjacent to the outlet opening of the inlet tube connected to the upper portion of the separation container for introduction of axially circulating air into the separation chamber; and
a central outlet tube having an inlet in the separation chamber and an outlet communicating with the vacuum source.
2. The cyclonic separation device of claim 1 , further including:
a disrupter ring located on the full circumference of the inside wall of the separation chamber at a position below the inlet of the outlet tube.
3. The cyclonic separation device of claim 2 , including an outlet tube disc positioned below the inlet to the outlet tube at a level below the disrupter ring.
4. The cyclonic separation device of claim 3 , wherein the central outlet tube extending into the separation chamber and the outlet tube disc is supported by ribs attached to the inlet of central outlet tube.
5. The cyclonic separation device of claim 3 , wherein the outlet tube disc is supported in the middle region of the separation chamber by a stem attached to the bottom of the separation container.
6. The cyclonic separation device of claim 3 , wherein the outer diameter of the outlet tube disc extends to between about 40 to 75 percent of the diameter of the separation container.
7. The cyclonic separation device of claim 2 , wherein the disrupter ring extends inwardly into the separation chamber between about 3 to 15 percent of the diameter of the chamber.
8. The cyclonic separation device of claim 1 , wherein the inlet tube has an openable cleanout cap at the outlet end of the inlet tube.
9. The cyclonic separation device of claim 1 , wherein the vortex vane in the inlet tube progresses gradually from a first position at the inlet opening of the inlet tube to the outlet opening of the inlet tube where the guiding vane is between about 45° to 75° from the first position, after having completed a 360° rotation within the inlet tube.
10. The cyclonic separation device of claim 9 , wherein the guiding vane is about 60° from the first position.
11. The cyclonic separation device of claim 1 , wherein the bottom is selectively openable for removal of dirt collected on the bottom.
12. The cyclonic separation device of claim 1 , wherein the vortex vane rotates incoming air in a first direction and air is fed into the separation chamber in an opposite direction.
13. The cyclonic separation device of claim 1 , wherein the vortex vane rotates incoming air in a first direction and air fed into the separation chamber in the same direction.
14. A vacuum cleaner including a cyclonic separation device disposed between a vacuum source and a nozzle, the cyclonic separation attachment comprising:
a cylindrical separation chamber having a central axis, an inlet at the upper portion, an outlet at the top and a closed bottom;
an inlet tube having an inlet opening and outlet opening positioned adjacent the separation chamber with an axis of the inlet tube substantially parallel to the central axis of the separation chamber;
a vortex vane positioned in the inlet tube causing inlet air to circulate axially;
a transfer region adjacent to the outlet opening of the inlet tube connected to the upper portion of the separation container for introduction of axially circulating air into the separation chamber; and
a central outlet tube having an inlet in the separation chamber and an outlet communicating with the vacuum source.
15. The cyclonic separation device of claim 14 , further including:
a disrupter ring located on the full circumference of the inside wall of the separation chamber at a position below the inlet of the outlet tube.