A fluid transfer device for a turbomachine with longitudinal axis X, which includes a stator portion intended to be connected to a stator equipment of the turbomachine and a rotor portion engaged in the stator portion. The stator equipment including at least one conduit fluidly connected to at least one pipeline of the stator portion, the stator portion and the stator equipment including an attachment interface intended to releasably receive attachment members, the attachment interface and the attachment members being configured so as to make a sealed coincidence of the pipelines and conduit, and the transfer device comprising at least one passage allowing the access of an external tool upstream of the transfer device for accessing the attachment members and passing through the transfer device in either side.

Module for mounting a turbomachine fan blade, including: a blade force take-up device, a blade support able to pivot about a radial axis and configured to be engaged axially inside the device, the support and the device being mutually configured to ensure a clamping of the support against the device and an axial retention of the support inside the device; the support and the device each including, on their respective surfaces in cooperation, an alternation of conical seats and recesses making it possible alternatively, on the one hand, when the recesses of one surface are in geometric correspondence with the seats of the other surface, to axially slide the support relative to the device, and on the other hand, when the seats of both surfaces are in geometric correspondence with each other, to prevent any axial sliding movement of the support relative to the device.

A hydraulic position control arrangement with a base body which is rotatably supported on a shaft that includes a hydraulic fluid passage for the admission of hydraulic fluid to an operating chamber which is delimited by the base body and an annular piston which is axially movably supported by the base body, includes an annular sealing element disposed in the base body and seated on the shaft and a leakage return path which extends from the area outside the shaft to the operating chamber through the sealing element. The shaft has at least two axial sections with different outside diameters with the sealing element being seated on the axial shaft section of smaller diameter. The sealing element has a seal lip which abuts the outside of the shaft and is axially supported by a support ring which is provided in the base body.

A fan lamp includes a driving mechanism, a lamp panel, a driving circuit board, and light sources. The driving mechanism is used for driving the fan lamp to rotate; the lamp panel is connected to the driving mechanism; the driving circuit board is mounted on the side of the lamp panel facing the driving mechanism; the light sources are used for illumination and are mounted on the side of the lamp panel facing away from the driving mechanism; and the driving circuit board is used for driving the light sources and the driving mechanisms to be turned on/off.

A cooling system for a work vehicle includes a fan rotating in a first direction to generate an air flow in a first direction, a speed sensor sensing a speed of the fan, one or more sensors sensing a load of a power source, a temperature sensor sensing an ambient temperature, and a controller configured to determine the load of the power source, determine the speed of the fan, determine an estimated speed of the fan based in part on the load of the power source and the ambient temperature, determine a speed difference of the speed of the fan and the estimated speed of the fan, and determine changing the air flow to a second direction based in part on the speed difference and the load of the power source.

A working machine includes a fan to generate first and second airflows in different directions. The fan includes a central shaft, rotary blades each extending in a radial direction of the central shaft, and an angle change mechanism to change an angle of each rotary blade relative to the central shaft by turning the rotary blade about an axis in the radial direction. The angle change mechanism includes a movable body that is movable in an axial direction of the central shaft, and a conversion mechanism to convert movement of the movable body into turning movement of the rotary blades. The conversion mechanism includes inserts each inserted in the corresponding rotary blade in the corresponding radial direction, fastenings to fix the corresponding rotary blade and the corresponding insert together, and a turning mechanism to turn each insert about the corresponding axis as the movable body moves.

The present disclosure discloses a fan having a main hub and a main shaft. Each of the multiple fan blades has a detachable shaft to which a joinery assembly is detachably connected. The joinery assembly is configured to cause either angular shift or speed variation or both of the fan blades to impact air attack and air fluid dynamics of the fan on the basis of either of user input parameters or data collected from the multiple sensors or both. Thus, the fan dynamically changes either angular shift or speed variation or both of the fan blades to impact air attack and air fluid dynamics of the fan to provide the suction and circulation of cold or warm UV and HEPA purified air through the fan blades.

A fluid transfer device for a turbomachine with longitudinal axis X, which includes a stator portion intended to be connected to a stator equipment of the turbomachine and a rotor portion engaged in the stator portion. The stator equipment including at least one conduit fluidly connected to at least one pipeline of the stator portion, the stator portion and the stator equipment including an attachment interface intended to releasably receive attachment members, the attachment interface and the attachment members being configured so as to make a sealed coincidence of the pipelines and conduit, and the transfer device comprising at least one passage allowing the access of an external tool upstream of the transfer device for accessing the attachment members and passing through the transfer device in either side.

The invention relates to a device comprising a fixed actuator for a control system for the orientation of fan blades of a turbomachine, comprising: at least one actuator body housed inside an annular casing of the turbomachine forming a bearing support, the annular casing being centred on a longitudinal axis of the turbomachine an inclined relative thereto, the actuator body having an internal volume in which a piston is able to slide, separating the internal volume into two chambers isolated from one another; and a plurality of actuator rods passing through the annular casing forming a bearing support and each having one end fixed to the piston and an opposite end intended to be connected to an internal ring of a movement transfer bearing in order to drive it in translation, the internal volume of the actuator body being closed downstream by a chamber bottom which forms a single part with the annular casing forming a bearing support.

A turbomachinery engine can include a fan assembly with a plurality of variable pitch fan blades. The fan blades are configured such that they define a first VPF parameter and a second VPF parameter. The first VPF parameter is within a range of 0.10 to 0.40 and is defined as the hub-to-tip radius ratio divided by the fan pressure ratio. The second VPF parameter is within a range of 1-30 lbf/in.sup.2 and is defined as the bearing spanwise force divided by the fan area. In certain examples, the turbomachinery engine further includes a pitch change mechanism, a vane assembly, a core engine, and a gearbox.