Dust separation apparatus
First Claim
1. Apparatus for separating dirt or dust from an airflow comprising a frustoconical cyclone having a tangential air inlet located at or adjacent the end of the cyclone having the larger diameter and a cone opening located at the end of the cyclone having the smaller diameter, and a closed collector for collecting dirt or dust separated from the airflow by the cyclone arranged so as to surround the cone opening and having a base surface facing towards the cone opening and at least one side surface, wherein a dust-retaining wall having a free upper end is provided on the base surface spaced from both a center and the side surface thereof.
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Accused Products
Abstract
The invention provides apparatus (10) for separating dirt or dust from an airflow including a frustoconical cyclone (12) having a tangential air inlet (16) located at or adjacent the end of the cyclone having the larger diameter and a cone opening (18) located at the end of the cyclone having the smaller diameter. A collector (20) is arranged so as to surround the cone opening and has a base surface (24) facing towards the cone opening. According to the invention, at least a portion (24a) of the base surface is conical or frusto-conical in shape and a dust-retaining wall (30) is provided spaced from the center of the base surface. This allows the apparatus to be reduced in size without substantially affecting the separation efficiency
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Citations
36 Claims
- 1. Apparatus for separating dirt or dust from an airflow comprising a frustoconical cyclone having a tangential air inlet located at or adjacent the end of the cyclone having the larger diameter and a cone opening located at the end of the cyclone having the smaller diameter, and a closed collector for collecting dirt or dust separated from the airflow by the cyclone arranged so as to surround the cone opening and having a base surface facing towards the cone opening and at least one side surface, wherein a dust-retaining wall having a free upper end is provided on the base surface spaced from both a center and the side surface thereof.
- 35. Apparatus for separating dirt or dust from an airflow comprising a frusto-conical cyclone having a tangential air inlet located at or adjacent the end of the cyclone having the larger diameter and a cone opening located at the end of the cyclone having the smaller diameter, and a closed collector arranged so as to surround the cone opening and having a base surface facing towards the cone opening, wherein at least a portion of the base surface is conical or frusto-conical in shape and wherein a dust-retaining wall is provided on the base surface spaced from a center of the base surface.
Specification