A centrifugal gas-liquid separator wherein a tubular casing houses a central tubular duct, which is provided with a first free end and with a second end that communicates with a gas-outlet duct and carries a transversal annulus-shaped plate having a perimetral edge that faces the inner wall of the tubular body to define an annular gap. The plate divides the space inside the tubular casing into a first chamber and into a second chamber that communicate with each other through the annular gap. A liquid-outlet duct communicates with the second chamber and a liquid-phase/gas-phase inlet duct extends tangentially from the tubular casing and discharges into the first chamber through an inlet nozzle. A regulation device is provided, which is designed to modify the section of the inlet nozzle in order to modify the rate of entry of the liquid phase and gas phase into the first chamber and to adapt the operation of the centrifugal gas-liquid separator following variations of flow rate.

A centrifugal separator apparatus for separating components of a fluid stream; the apparatus comprising a support structure and a centrifugal separator unit rotatably mounted on the support structure so as to be rotatable about a rotational axis extending through the centrifugal separator unit; a drive element for driving rotation of the centrifugal separator unit; wherein the centrifugal separator unit comprises a centrifugal separation chamber having an inlet which is connected or connectable to a source of fluid requiring separation, a first outlet for collecting a higher density component of the fluid stream, and a second outlet for collecting a lower density component of the fluid stream; the first outlet being connected or connectable to a first collector for collecting the higher density component and the second outlet being connected or connectable to a second collector for collecting the lower density component; the centrifugal separation chamber comprising a curved or inclined guide surface for guiding flow of the fluid from the inlet in a radially outward direction; wherein the centrifugal separator unit is provided with a wall member which is axially movable to provide a selected degree of occlusion of the first outlet and thereby control flow of the higher density component through the first outlet.

The present disclosure generally relates to separating solid particles from an airflow in a gas turbine engine. A system for separating debris includes a first separation device in fluid communication with an inlet flow path of a compressor and a second separation device in fluid communication with an outlet flow path of the compressor and an inlet flow path of a combustor. The first separation device is adapted to remove coarse particles from the airflow. The second separation device is adapted to remove fine particles from the airflow. The course particles have a larger mean particle diameter than the fine particles.

The present disclosure generally relates to separating solid particles from an airflow in a gas turbine engine. A system for separating debris includes a first separation device in fluid communication with an inlet flow path of a compressor and a second separation device in fluid communication with an outlet flow path of the compressor and an inlet flow path of a combustor. The first separation device is adapted to remove coarse particles from the airflow. The second separation device is adapted to remove fine particles from the airflow. The course particles have a larger mean particle diameter than the fine particles.

A compact dual stage cyclone separation assembly, an efficient dual stage cyclone separator, and a method for utilizing the same, comprising a lower pressure drop across the dual stage separators due to fewer particle-contaminated gas flow directional changes in the particle contaminated gas stream, and method for using same. The dual stage cyclone separator comprises a primary stage cyclone barrel and a second stage cyclone barrel, wherein the second stage cyclone barrel is coaxial with and concentric within the first cyclone separator, a solids extraction port, wherein said sidewall of said main body defines a solids extraction port opening located between said upper end and said lower end for discharging large particles from said cyclone body, and a small particle discharge opening, wherein the small particle discharge opening is located inside the lower end of the main body.

A water extractor includes an outer duct with an inlet and an outlet, and an inner duct with an inlet and an outlet. The inner duct is positioned in the outer duct. The water extractor further includes a gap between the inner duct and the outer duct. The gap is tapered between a first position and a second position.

Provided is a cyclone dust collector with a higher particle collection efficiency than before. The cyclone dust collector of the present invention includes a nozzle assembly including a plurality of the nozzles arranged within a first cross section defined by a plane containing a center axis of the cylindrical case and part of the spiral flow path intersecting with each other, the nozzles being adapted to spray the water mist in a direction along the first cross section.

Provided is a cyclone dust collector with a higher particle collection efficiency than before. The cyclone dust collector of the present invention includes a nozzle assembly including a plurality of the nozzles arranged within a first cross section defined by a plane containing a center axis of the cylindrical case and part of the spiral flow path intersecting with each other, the nozzles being adapted to spray the water mist in a direction along the first cross section.

A fuel pick-up device (10) for a fuel tank (13) has a head (11) for fitting to a wall of the tank (13), and an elongate body (14) which extends from the head (11) into the tank (13). A water separator disposed in body comprises an axially-extending separation chamber (18), and a vane (21) for creating a helical flow of fuel flowing through the chamber between an inlet (17) and an outlet (23), wherein any water in the fuel entering the separation chamber through the inlet (17) moves radially outwardly in the helical flow away from the outlet (23), the outlet (23) being arranged such that fuel drawn from the chamber (18) is substantially free of water. Water separated from the fuel is collected in a chamber (25) and can be removed via a drain (24).

An apparatus to separate water droplets from an air stream includes an elongated tube having a first end and a second end. The elongated tube includes an opening at a first end of the elongated tube, the opening may be positioned to accept the air stream. A reservoir is positioned at a second end of the elongated tube. A helix structure is positioned within the elongated tube. The helix structure includes an upper surface, a lower surface arranged opposite the upper surface, an outer edge, and a variable pitch along a length of the elongated tube. The variable pitch may provide a variable interior angle between an inner wall of the elongated tube and the upper surface of the helix structure.