A bypass flow regulator for a vacuum waste system (VWS) is disclosed. The bypass flow regulator includes a valve assembly installable in an aircraft vent line leading outside the aircraft from an onboard VWS waste tank. The vent line directs an airstream pumped from the waste tank to an external outlet under suction (from which outlet the airstream is ejected from the aircraft). The valve assembly includes a group of valves (e.g., umbrella valves) set into the path of the airstream. The valves may collectively modulate the flow rate of the airstream by adjusting their effective flow area.

An integrated vortex separator (IVS) is disclosed. The IVS includes a housing in communication with a waste inlet via which a waste stream is drawn under suction into a waste tank. In a first stage, the waste stream is drawn into a centrifugal vortex flow to facilitate the removal of solid and liquid waste from the waste stream, leaving a primary airstream. Within the housing, a filter assembly includes outer and inner inverted cones with a conical cavity therebetween, the cavity serving as a second stage into which the vortex flow is redirected to remove additional liquid from the airstream. Radial vanes extending inward from the outer cone define portals between adjacent vanes, through which the redirected vortex flow is isolated from the original vortex flow. Exhaust ports in communication with the conical cavity allow the substantially moisture-free airstream to be drawn from the IVS via a vent line.

A cyclone for the separation of solid particles and/or at least one liquid from a fluid, featuring a housing, an inlet opening for introducing the fluid together with the solid particles and/or the at least one liquid into the housing, a discharge port for the solid particles and/or the at least one liquid, a dip tube for discharging the fluid from the housing, and at least two guide vanes. Each guiding vanes shows a geometrical form with at least three edges e1, e2, e3. Further, each guide vane is directly or indirectly fixed to the housing with at least one edge e3 at a fixing point, whereby an area a is defined as the cross-sectional area of the housing intersecting the fixed edges e3. In addition, each guide vane shows at least two edges e1 and e2 which are not fixed to the housing, whereby the first edge e1 has a distance d1 and the second edge e2 has a distance d2, and whereby d1<d2 to the centerline c of the housing. According to the invention, the first edge e1 shows a distance L1 to the area a and the second edge e2 shows a distance L2, whereby L2>1,25*L1.

The present invention refers to an accelerating cyclone that separates solid particles, comprising in its general structure a lower conical body (1) (17A and 17B), comprising a lower opening (18), a central cylindrical body (2) immediately above the conical body (1) whose diameter is smaller than the largest diameter of the conical body cone (1), and a third upper, also cylindrical, body (3) of smaller diameter than the diameter of the central cylindrical body (2), comprising a side opening for the acceleration air output (5); where the cylindrical central body (2) allows to accelerate the speed of the solid material particles and is the cyclone pressure chamber; and where said cylindrical central body (2) comprises a side opening for the acceleration air input (8) and at least one duct (9).

A solids separator includes a housing having a fluid inlet, the fluid inlet oriented to induce helical flow of fluid entering the housing. A flow reversing device is disposed within the housing and is arranged to reverse a longitudinal direction of the helical flow within the housing. A fluid outlet is disposed at an upper end of the housing. The fluid outlet includes within its cross-section a radial center of the housing.

A cyclone separator includes a cyclone separator wall and a hopper wall defining an interior space, and a plurality of baffles located in the interior space to assist in minimizing particle re-entrainment, reduce erosion, and reduce pressure losses.

The powder coating system according to the invention for coating workpieces with coating powder has a coating cubicle (3) and a cyclone separator (5), the coating cubicle (3) being connected to the cyclone separator (5) via a residual powder pipe (4). The cyclone separator (5) comprises in its inlet region an outlet tube (23) in which there is disposed a guide apparatus (50) that has multiple blades (51). These are designed so that the air vortex (28) impinging on the blades (51) can be deflected into a vertical air stream (30).

A vortex finder (18,27,40) for a cyclonic separator (1) through which air flowing in a helical path D about an axis A-A of a cyclone chamber (4) passes to an outlet (6) is disclosed. The vortex finder comprises a plurality of stationary overlapping vanes (13,19) extending in an axial direction and spaced radially around said axis A, the vanes (13,19) being positioned relative to each other so a helical flow of air about the axis of the cyclone chamber (4) passes over an outer surface (16) of the vanes (13,19) with a portion of the air flow being redirected around a leading edge (14) of each vane (13,19) and through a gap between adjacent vanes (13,19) to the outlet (6). At any point along the axis, a portion of an outer surface (16,20,30,46) of each vane (13,19,28,41) lies on a circle having its center coaxial with said axis, the outer surface (16,20,30,46) of each vane (13,19,28,41) having a portion leading towards the leading edge (14,33,47) that extends inwardly away from the circle so that the leading edge (14,33,47) of each vane (13,19,28,41) about which air is redirected through the gap between vanes (13,19,28,41) is located within a region bound by said circle to create a region of overpressure on the outer surface (16) of the adjacent vane (13,19) in the vicinity of the gap.

A separator provides mechanical separation of suspended particles or debris within a fluid. The separator includes a cylindrical body having an inlet pipe for directing the fluid generally tangentially into the cylindrical body, causing the fluid to spin around the inside diameter of the cylindrical body. An outlet pipe, having an outer diameter smaller than the inside diameter of the cylindrical body, can extend from a top end of the cylindrical body into the cylindrical body. Directional blades can be disposed on an outer surface of the outlet pipe, with a gap between the directional blades and the inside surface of the cylindrical body. A baffle dome disposed an a lower end of the cylindrical body slows down the fluid flow, causing the particles and debris to remain below the baffle and settle. The fluid then exits out the outlet pipe as a cleaned fluid.

A vortex finder (18,27,40) for a cyclonic separator (1) through which air flowing in a helical path D about an axis A-A of a cyclone chamber (4) passes to an outlet (6) is disclosed. The vortex finder comprises a plurality of stationary overlapping vanes (13,19) extending in an axial direction and spaced radially around said axis A, the vanes (13,19) being positioned relative to each other so a helical flow of air about the axis of the cyclone chamber (4) passes over an outer surface (16) of the vanes (13,19) with a portion of the air flow being redirected around a leading edge (14) of each vane (13,19) and through a gap between adjacent vanes (13,19) to the outlet (6). At any point along the axis, a portion of an outer surface (16,20,30,46) of each vane (13,19,28,41) lies on a circle having its center coaxial with said axis, the outer surface (16,20,30,46) of each vane (13,19,28,41) having a portion leading towards the leading edge (14,33,47) that extends inwardly away from the circle so that the leading edge (14,33,47) of each vane (13,19,28,41) about which air is redirected through the gap between vanes (13,19,28,41) is located within a region bound by said circle to create a region of overpressure on the outer surface (16) of the adjacent vane (13,19) in the vicinity of the gap.