A rotary compressor may include a rotational shaft, a first bearing and a second bearing each supporting the rotational shaft in a radial direction, a cylinder disposed between the first bearing and the second bearing and forming a compression space, a roller disposed in the compression space to form a contact point spaced at a predetermined interval from the cylinder and coupled to the rotational shaft to compress a refrigerant in response to rotation of the roller, and at least one vane slidably inserted into the roller and in contact with an inner circumferential surface of the cylinder and dividing the compression space into a plurality of compression chambers.

A rotary-vane mechanism can include a rotor and a casing, wherein the rotor includes a drive shaft and one or more vanes. The casing can include a quasi-cylindrical tubular shell or a quasi-spherical shell, and can provide walls that support the drive shaft. The rotor can be mounted within the casing. The drive shaft can extend outward from the casing, wherein the drive shaft touches the inner surface of the casing in one or more contact locations, with the contact location(s) provided by a sealing plate. The casing can include intake ports, exhaust ports, ports for an ignition mechanism, wherein the intake ports are provided with one-way valves. The drive shaft can include one or more guide slots, which can penetrate through the drive shaft wherein the vane(s) is located inside the guide slot(s), and edges of the vane(s) can constantly touch the inner surface of the casing during a rotor rotation of the rotor. Each vane can possess a rectangular shape or a discoid shape, and the sealing plate or a sealing ring can be located along an edge of the vane(s). The rotor and the casing can form isolated spaces inside the rotary-vane mechanism and during the rotor rotation can provide three work strokes for an engine, and two strokes for a compressor.

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 a vane bearing apparatus (102) comprising a slide bearing body (105) with a slot (13) forming a slide bearing for the vane (12), and a cylindrical convex face (116) facing away from the slot (13), and, on each side of the slot (13), a pivot bearing pad (106) with a cylindrical concave face (117) facing the slide bearing convex face (116), forming a pivot bearing for the vane.

The pneumatic drill has member defining an air input and an air output and a housing defining an internal cylindrical chamber having bearing surfaces having a through axis. A driven shaft is coupled to the tool engaging chuck that defines a plurality of longitudinal slots. The driven shaft is disposed within the chamber and has a longitudinal axis offset from the through axis. A plurality of vanes each being partially formed of graphite that are individually disposed within one of the plurality's of longitudinal slots. Two of the vanes, the housing, and the driven shaft define a moving compression chamber.

A rotary compressor may include a rotational shaft, a first bearing and a second bearing each supporting the rotational shaft in a radial direction, a cylinder disposed between the first bearing and the second bearing and forming a compression space, a roller disposed in the compression space to form a contact point spaced at a predetermined interval from the cylinder and coupled to the rotational shaft to compress a refrigerant in response to rotation of the roller, and at least one vane slidably inserted into the roller and in contact with an inner circumferential surface of the cylinder and dividing the compression space into a plurality of compression chambers. Each of the at least one vane may include a pin that extends in an axial direction of the rotational shaft. An inner lower surface of the first bearing or an upper surface of the second bearing may include a rail groove into which the pin is inserted.

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 a vane bearing apparatus (102) comprising a slide bearing body (105) with a slot (13) forming a slide bearing for the vane (12), and a cylindrical convex face (116) facing away from the slot (13), and, on each side of the slot (13), a pivot bearing pad (106) with a cylindrical concave face (117) facing the slide bearing convex face (116), forming a pivot bearing for the vane.

A reversing mechanism for a pneumatically or hydraulically powered tool having a rotor adapted to rotate in either of first and second rotational directions. The reversing mechanism allows a user to actuate a button and rotate a valve to direct air flow through the tool. By pressing the button, the button will move a base laterally, and in doing so, rotates the valve. Rotating the valve then aligns a barrier of the valve in a direction tangential to the selected rotational direction of the tool, better directing forced air or fluid and more efficiently distributing the air or fluid in the selected rotational direction.

The pneumatic drill has member defining an air input and an air output and a housing defining an internal cylindrical chamber having bearing surfaces having a through axis. A driven shaft is coupled to the tool engaging chuck that defines a plurality of longitudinal slots. The driven shaft is disposed within the chamber and has a longitudinal axis offset from the through axis. A plurality of vanes each being partially formed of graphite that are individually disposed within one of the plurality's of longitudinal slots. Two of the vanes, the housing, and the driven shaft define a moving compression chamber.

The present invention is an engine having a housing, a rotor and a plurality of vanes. The housing has a cavity with an outer wall that has an inlet region, an insulation or hot region, a thermal separator, a chill region, a work region and a return region. The vanes define cavities that rotate between the rotor and the housing. Hot gas enters in the inlet region, which can have a slot. The cavity is full of hot gas in the insulation region. The temperature is reduced in the chill region, which causes the pressure to likewise drop to a relative low pressure. In the work region, the diameter of the outer wall is reduced. The pressure differential between successive cavities causes the rotor to turn in the direction of the decreasing wall length, whereby work can then be extracted from the engine.

The present invention relates to a vane heat engine and in particular to a vane heat engine efficiently utilizing potential energy and having an adjustable expansion chamber wall so that the volume of the expansion chamber is adjustable. The engine has a housing with an inlet and an outlet. A rotor with a plurality of vanes is provided to rotate within the housing. An adjuster is provided for adjusting the location of an expansion chamber wall. The position or location of the expansion chamber wall determines the volume within a plurality of compartments bound by the rotor, the expansion chamber wall and two of the plurality of vanes. The expansion wall can be made of a plurality of members, whereby the expansion wall is flexible along its longitudinal dimension yet strong perpendicular to the longitudinal dimension.