A swirl generating pipe element for providing a rotational movement to a fluid, comprising a reluctance motor and a pipe section (9), wherein the reluctance motor comprises a stator element (1) and a rotor element (2); the stator element comprises multiple stator poles (3); the rotor element comprises a vane assembly having multiple rotor poles (4) and arranged to rotate around a rotor shaft (7) situated along the centerline of the pipe section (9), and each rotor pole has a first end (5) rotatably connected to the rotor shaft (7) and a second end (6) arranged close enough to one of the multiple stator poles (3) for a magnetic polarization to be induced in the rotor pole; and the pipe section (9) comprises a wall, having an external and an internal circumferential surface, and an inlet and an outlet for a fluid; wherein the stator element (1) and the rotor element (2) is separated by the wall (8) of the pipe section (9), and the multiple stator poles (3) are arranged at the external circumferential surface of the pipe section, and the second end (6) of the multiple rotor poles (4) are arranged adjacent to the internal circumferential surface of the pipe section, such that the vane assembly may provide a rotational movement to a fluid entering the inlet (10) of the pipe section (9).

An engine system is provided for an aircraft having an engine and an engine controller. The engine system includes: an electric machine configured to be in electrical communication with the engine controller for powering the engine controller; and a fuel oxygen reduction unit defining a liquid fuel flowpath and a stripping gas flowpath and configured to transfer an oxygen content of a fuel flow through the liquid fuel flowpath to a stripping gas flow through the stripping gas flowpath, the fuel oxygen reduction unit also in electrical communication with the electric machine such that the electric machine powers at least in part the fuel oxygen reduction unit.

A fuel oxygen reduction unit for an engine is provided. The fuel oxygen reduction unit includes a contactor including a fuel inlet that receives an inlet fuel flow and a stripping gas inlet that receives an inlet stripping gas flow, the contactor configured to form a fuel/gas mixture; a separator that receives the fuel/gas mixture, the fuel oxygen reduction unit defining a circulation gas flowpath from the separator to the contactor; and a stripping gas source selectively in fluid communication with the circulation gas flowpath for selectively introducing a stripping gas from the stripping gas source to the circulation gas flowpath, wherein the stripping gas source is an accessory gearbox.

A combustion engine includes a combustion section; a fuel delivery system for providing a fuel flow to the combustion section, the fuel delivery system including an oxygen reduction unit for reducing an oxygen content of the fuel flow; a thermal management system including a heat sink heat exchanger, the heat sink heat exchanger in thermal communication with the fuel delivery system at a location downstream of the oxygen reduction unit; and a control system including a sensor operable with the fuel delivery system for sensing data indicative of an operability of the oxygen reduction unit and a controller operable with the sensor, the controller configured to initiate a corrective action based on the data sensed by the sensor indicative of the operability of the oxygen reduction unit.

A self-priming apparatus for quick no-water startup includes a front-stage inlet chamber, a middle-stage gas-liquid separation chamber, and a rear-stage gas-liquid separation chamber. A plurality of two-stage chamber gas-liquid separation one-way channels are symmetrically arranged between adjacent chambers of the front-stage inlet chamber, the middle-stage gas-liquid separation chamber and the rear-stage gas-liquid separation chamber. A plurality of one-way outlets are symmetrically arranged in an inner cavity of the rear-stage gas-liquid separation chamber. By decreasing or increasing the volumes of an outer cavity and an inner cavity of the front-stage inlet chamber, water is sucked in due to pressure difference and water intake and preliminary gas-liquid separation are carried out. The middle-stage gas-liquid separation chamber is configured for gas-liquid separation. By decreasing or increasing the volume of the inner cavity of the rear-stage gas-liquid separation chamber, water is rapidly expelled due to pressure difference and gas-liquid separation is carried out.

Disclosed is a system and method to separate solid particle components from a fluid that includes a spherical vessel with a tangential inlet to introduce the fluid and a fluid exhaust and filter arranged on the center line of the interior of the vessel. A combination of pressurized fluid and solid particles enter at the tangential inlet and move primarily in a circular path around the interior of the vessel. The circular path results in the larger mass particles settling at the vessels lower region. Less massive particles may be entrained in the exiting fluid flow toward a filter element where they are removed from the exiting fluid. The vessel has an opening to remove the trapped separated particles.

A debubbler system includes a hollow enclosure and a vent assembly. The hollow enclosure includes comprising an inlet configured to receive coolant into the hollow enclosure and an outlet configured to direct coolant out of the hollow enclosure. The vent assembly includes a vent member configured to rotate about two or more axes within the hollow enclosure. Additionally, the vent member includes an open end configured to remain above a coolant level within the hollow enclosure as the vent member rotates about the two or more axes and a tube configured to flow air, coolant, or both, from the open end of the vent member out of the hollow enclosure.

The present invention provides a quick startup device for a centrifugal pump. The device includes an upper self-priming chamber, a lower self-priming chamber, and an inlet pipe sequentially arranged from top to bottom. The upper self-priming chamber and the lower self-priming chamber are integrally mounted on the inlet pipe. A main shaft and a hexagonal partition member rotatably mounted on the main shaft are arranged on an axis of the upper self-priming chamber. A blade tip of each partition plate is closely attached to an inner wall surface of the upper self-priming chamber. Three identical accommodation grooves are provided on an inner side of the upper self-priming chamber. A spring and a separation baffle are arranged in each accommodation groove, an exhaust hole is provided on one side of each accommodation groove, and an air intake pipe is provided on the other side of each accommodation groove.

This disclosure provides a two-phase separator device for separating condensate or particulate from a gas stream. In some implementations, the separator device removes water from air and may operate under micro-gravity conditions. The gas stream flows through the two-phase separator device and passes through a rotatable vane assembly along a flow path without being redirected in another flow path. Condensate or particulate in the gas stream is impacted by a plurality of vanes of the rotatable vane assembly, and the condensate is captured by features formed within the plurality of vanes. The captured condensate is accelerated radially outwardly along the each of the plurality of vanes towards a sloped inner wall, and further moved along the sloped inner wall in a direction against the flow path of the gas stream during rotation.

Disclosed herein is an irrigated catheter system. The system includes a catheter shaft including a fluid delivery tube, an electrode coupled to the catheter shaft at a distal end thereof and in fluid communication with the fluid delivery tube, a fluid source coupled in fluid communication with the fluid delivery tube for supplying fluid thereto, and a fluid degassing apparatus fluidly coupled between the fluid source and the fluid delivery tube such that the fluid flows through the fluid degassing apparatus. The fluid degassing apparatus includes one of a gas filter including a permeable membrane disposed in a fluid-tight housing, a centrifugal separator, and a multi-chamber system including a vacuum chamber and a fluid reservoir fluidly coupled downstream of the vacuum chamber.