A fixed-rail rotor pump and fixed-rail rotor pump combined supercharging internal combustion engine are described. In the fixed-rail rotor pump, a rotor shaft runs through a rotor; the rotor is internally tangent to the inner wall of the cylinder; the inner side of at least one side of a cylinder-end cover is fixed with a convex fixed-rail disposed concentrically with the cylinder; the rotor runs through the cylinder end cover and the fixed-rail; a piston is provided along the external periphery of the rotor and is rotatably connected to the rotor via a rotating shaft of the piston; the rotor is provided with a piston comprises a top arc surface, a bottom arc surface the three angels of the piston constitute an equilateral triangle; the top angle of the piston keeps contact with the inner wall of the cylinder; the bottom arc surface of the piston is externally tangent to the outer peripheral surface of the fixed-rail; the piston moves in a curved path around the fixed-rail.

The invention concerns a rotary volumetric machine with three pistons comprising an enclosure forming a stator in which there moves a rotating assembly forming a rotor comprising a crankshaft that mechanically engages with the pistons, the rotating assembly defining, inside said enclosure, six chambers of variable volume of which the volume varies when the rotating assembly rotates, each of the pistons delimiting, with the enclosure, a variable volume chamber called the extrados chamber and two consecutive pistons delimiting, with the enclosure and the crankshaft, a variable-volume chamber called the intrados chamber. The geometry of the pistons and of the crankshaft is designed such that each intrados chamber has a capacity greater than or equal to the capacity of the extrados chambers.

The invention concerns a rotary volumetric machine with three pistons comprising an enclosure forming a stator in which there moves a rotating assembly forming a rotor comprising a crankshaft that mechanically engages with the pistons, the rotating assembly defining, inside said enclosure, six chambers of variable volume of which the volume varies when the rotating assembly rotates, each of the pistons delimiting, with the enclosure, a variable volume chamber called the extrados chamber and two consecutive pistons delimiting, with the enclosure and the crankshaft, a variable-volume chamber called the intrados chamber. The geometry of the pistons and of the crankshaft is designed such that each intrados chamber has a capacity greater than or equal to the capacity of the extrados chambers.

The present invention refers to a spark ignition engine of the rotary type with a double rotation center, comprising a stator (A) with a stator central body (A1) having a compartment (1, 2), a first side cover (A2) and a second side cover (A3), wherein the compartment includes an expansion compartment (1) and a compression compartment (2) and a combustion chamber at an upper portion of the compartment (1, 2), a rotor (B) with an expansion rotating element (B1), a compressing rotating element (B2) and a hinging linear element (B3) interposed between said expansion rotating element (B1) and the compression rotating element (B2), the rotor is arranged in the compartment (1, 2) of the stator central body, wherein the expansion compartment (1) comprises a concave inner surface (1a) and the compression compartment (2) comprises a convex inner surface (2a).

The present invention refers to a spark ignition engine of the rotary type with a double rotation center, comprising a stator (A) with a stator central body (A1) having a compartment (1, 2), a first side cover (A2) and a second side cover (A3), wherein the compartment includes an expansion compartment (1) and a compression compartment (2) and a combustion chamber at an upper portion of the compartment (1, 2), a rotor (B) with an expansion rotating element (B1), a compressing rotating element (B2) and a hinging linear element (B3) interposed between said expansion rotating element (B1) and the compression rotating element (B2), the rotor is arranged in the compartment (1, 2) of the stator central body, wherein the expansion compartment (1) comprises a concave inner surface (1a) and the compression compartment (2) comprises a convex inner surface (2a).

An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.

A rotary vane pump or rotary vane motor including a rotatable rotor being eccentrically arranged within a rotatable cylindrical housing sleeve defining a freely rotary working chamber which takes out the relative sliding movement and friction inside to outer housing bearing. A partition element of a vane hingedly attached to the rotor; wherein the partition element travels with the rotor following the orbit of the housing incident to the expansion and contraction of the working space performing as a true dynamic radial seal; The rotor assembly along with the housing assembly being sandwiched between end-plates to fulfill dynamic side seal; The end-plates may contain pressure and non-pressure ports as well as holes for shaft, bearings, brackets and mounting hardware.

A compressor includes a drive shaft, a housing, an annular rotor, and cradles. The rotor has cradle windows. The rotor can rotate within the rotor chamber together with the drive shaft while being in sliding contact with the housing at the circumferential surface. The cradles are provided in the cradle windows to be pivotable about pivot axes. When pivoting, the cradles maintain the compression chambers in an airtight state by being in contact with the housing at pivoting ends of the cradles, the pivoting ends extending along the direction parallel to the axis. The rotor chamber includes an outer operation chamber located on the outside of the rotor, and an inner operation chamber located on the inside of the rotor. The cradles, and the outer operation chamber and/or the inner operation chamber form the compression chambers, the volumes of which are varied by the rotation of the rotor.

An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.

An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.