The invention relates to a rotary sliding vane machine (1) for fluid processing, comprising a housing (2) with a cavity (4) with a rotor (9). Vanes (12) are arranged in outwardly directed slots (13) in the rotor (9), and relative sliding between the vanes and the rotor provides spaces with variable volumes in the rotational direction. Each vane is supported by hydrostatic slide bearings (20, 20′) on each side of the vane (12). Due to pressure changes of the process fluid, the vane (12) is tilted towards and away from bearing pads (27, 27, 87). The invention causes the bearing pads to adjust their position to the vane (12), and also causes a change of volume of a bearing fluid chamber (21, 21′, 81), which in turn effects a supply of bearing fluid to the slide bearing fluid film.

A hub assembly for use in a compressed air driven inverter generator is provided. The hub assembly comprises: a hub comprising a plate with a cylindrical protrusion centered on a bottom face and a bore hole through the center of the plate and protrusion, the protrusion sized to fit into an inner bore hole of a stator and the bore hole of the hub sized to fit around without contacting an output shaft of an air motor of the generator, the plate also a trench on a bottom face and a plurality of mounting holes; a diffuser plate configured to attach to the bottom face of the hub with a plurality of air holes extending through the diffuser plate, the air holes being centered on the trench; a ring-shaped hub spacer in contact with a side of the diffuser plate opposite the hub.

A pneumatic control device includes a base seat unit, a cylinder unit and a time-delay unit. The cylinder unit is mounted the base seat unit, and is able to drive rotational movement. The time-delay unit is mounted to the base seat unit, and includes sequentially interconnected delay switch, flow-limiting valve, pressure accumulator and a control valve. The delay switch is operable to move between an action position whereat the cylinder unit drives the rotational movement, and a non-action position. When the delay switch is moved to the non-action position, the cylinder unit keeps driving the rotational movement for a period of time and then stops.

A self-rotation graphene heat-dissipation device for a direct-drive electro-hydrostatic actuator, that includes inner and outer walls of a shell eccentrically arranged relative to each other, the shell sleeves on an outer side of a self-rotation mechanism. The self-rotation mechanism is arranged on an outer side of a shaft; the shaft is coaxial with the inner wall of the shell and connected with outer and inner end covers. The self-rotation mechanism includes a rotor and blades, the rotor sleeves on the shaft and is connected with the outer and inner end covers. The rotor is slidably connected with the blades, and outer walls of the blades are closely attached to the inner wall of the shell. Graphene heat-dissipation layers are coated on outer walls of all of the shell, blades, the rotor, the inner and outer end covers respectively.

A vane for use in a rotary vane pump. The vane has a length L extending between a first edge of the vane and a second edge of the vane and a width W extending perpendicular to said length, the width extending between a third edge of said vane and a fourth edge of the vane, and further comprising a channel extending through said vane and provided at a position along said length L of said vane. The channel maybe positioned away from said first and second edges such that said vane has a constant length L along its width. The width of the channel may vary in shape between first and second points along the length of the vane. The channel may have a triangular shape, a rectangular shape or a circular shape. A method for detecting the decrease in length of the vane is also described.

A vane motor including a casing having a pressurized fluid inlet and a pressurized fluid outlet through which a pressurized fluid is introduced and discharged and a rotor disposed inside the casing and configured to receive the pressure of the pressurized fluid and rotate about a rotary shaft held in the casing, the rotor having a generally cylindrical rotor body with a central axis corresponding to the rotary shaft and vanes installed in vane guide grooves formed in the side surface of the rotor body and changed in widths protruding from the vane guide grooves according to rotation phases, wherein the vanes are arch-shaped in a longitudinal direction of the rotary shaft, the vane guide grooves are arch-shaped to accommodate the vanes thereinto, and the vanes are rotatably coupled to portions of the rotor body through link rods disposed on one side of the vanes. The vane motor is configured to allow the arch-shaped vanes to perform the rotating motions along the arch traces, not the linear reciprocating motions, thereby suppressing and removing the abnormal operations, abrasion, and friction of the vanes.

A vane motor including a casing having a pressurized fluid inlet and a pressurized fluid outlet through which a pressurized fluid is introduced and discharged and a rotor disposed inside the casing and configured to receive the pressure of the pressurized fluid and rotate about a rotary shaft held in the casing, the rotor having a generally cylindrical rotor body with a central axis corresponding to the rotary shaft and vanes installed in vane guide grooves formed in the side surface of the rotor body and changed in widths protruding from the vane guide grooves according to rotation phases, wherein the vanes are arch-shaped in a longitudinal direction of the rotary shaft, the vane guide grooves are arch-shaped to accommodate the vanes thereinto, and the vanes are rotatably coupled to portions of the rotor body through link rods disposed on one side of the vanes. The vane motor is configured to allow the arch-shaped vanes to perform the rotating motions along the arch traces, not the linear reciprocating motions, thereby suppressing and removing the abnormal operations, abrasion, and friction of the vanes.

A positive displacement expander with an operating fluid chamber of expansive volume regulated by a shifting head. The shifting head may enhance rotation of a housing utilized to rotate a shaft for providing work to any of a variety of power retrieval devices. Additional efficiencies may also be realized through unique hydraulic layouts for circulating of the operating fluid from a heat exchanger, through the rotary device and to a cold exchanger for continuous operating of the rotary device.

A vane motor with a rotor body driven by compressed air having vane gaps for radially movable vanes and a rotor shaft for rotatably bearing the rotor body relative to a motor bushing. A method for lubricating a vane motor that ensures particularly long, low-service operation is provided. The rotor shaft is configured as a hollow shaft with a first lubricant reservoir in the interior. The first lubricant reservoir has a lubricant filling opening accessible from the outside of the vane motor. The first lubricant reservoir is connected by at least one radial lubricant hole to at least one further lubricant reservoir arranged in a section of the rotor body between two vane gaps, and/or is connected to an outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap.

A vane motor with a rotor body driven by compressed air having vane gaps for radially movable vanes and a rotor shaft for rotatably bearing the rotor body relative to a motor bushing. A method for lubricating a vane motor that ensures particularly long, low-service operation is provided. The rotor shaft is configured as a hollow shaft with a first lubricant reservoir in the interior. The first lubricant reservoir has a lubricant filling opening accessible from the outside of the vane motor. The first lubricant reservoir is connected by at least one radial lubricant hole to at least one further lubricant reservoir arranged in a section of the rotor body between two vane gaps, and/or is connected to an outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap.