Back to results
US 6,772,728 B2Granted
Supercharged radial vane rotary device
OwnerOsama Al-hawajinventor
Life of this patent
Estimating the term…
Abstract
A family of sliding vane rotary power devices provides two and four-phase internal combustion engines, as well as serving as pumps and compressors. All of these devices have an improved donut shaped rotor assembly having an integrated axial pump portion, an end shaft, a plurality of radial-directed passages and an equal plurality of sliding vanes in respective slots that are medially guided by cam followers moving in a pair of cam grooves The devices include an axial pump portion that acts as a supercharger for the four-phase internal combustion engine, a scavenger for the two-phase internal combustion engine, and as an axial pressure inducer when operating as a pump or compressor.
Claims23
A supercharged radial vane rotary power device comprising:
- an end shaft extending along a rotation axis;
- a rotor assembly rotatable about the rotation axis;
- and
- a stator comprising:
- a front stator portion having the end shaft journaled therewithin, the front stator portion joined to a back stator portion along respective mating surfaces to form an internal volume containing the rotor assembly;
- the back stator portion comprising a central inwardly projecting cylindrical portion comprising at least one channel comprising an intake channel communicating with at least one radial intake port formed in a peripheral wall of the central inwardly projecting portion;
- and wherein the rotor assembly comprises:
- a rotor block having the end shaft extending therefrom, the end shaft coupled to the rotor block by an axial fan portion comprising a plurality of fan blades extending radially across an intake opening communicating with a central bore for receiving, with rotational clearance, the central inwardly projecting cylindrical portion of the back stator portion;
- the rotor block rotatably carried by the stator;
- radial compartments equidistantly spaced apart about the rotation axis, each of the radial compartments open to an outer peripheral surface of the rotor block, each of the radial compartments having a respective inner opening intermittently communicating with the at least one radial port in the peripheral wall of the central cylindrical inwardly projecting portion of the stator during the course of each rotation of the rotor assembly;
- and
- radially extending vane assemblies slidably disposed in respective slots within the rotor block in alternating relation with the radial compartments, each of the vane assemblies comprising a respective cam follower engaging a cam track define by grooves formed in mating surfaces of the front and back stator portions.
9 more elements
A supercharged four-phase rotary internal combustion engine comprising:
- a stator defining an internal volume having an oval cross-section transverse to an axis of rotation and comprising front and back stator portions having mating surfaces for mating along a medial plane transverse to the axis of rotation:
- the front and back stator portions comprising cam grooves in the mating surfaces to define a cam track encircling the internal volume and to communicate with the internal volume through an encircling slot formed from recessed wall portions of the mating surfaces of the back and front stator portions;
- the front stator portion comprising a central throughhole for receiving an end shaft extending along the axis from a rotor block, the back stator portion comprising a central inwardly projecting cylindrical portion projecting into the internal volume along the axis of rotation, the central inwardly projecting cylindrical portion comprising at least one intake channel for communicating with at least one peripheral intake port;
- a rotor assembly comprising the rotor block comprising a central cylindrical bore for receiving the central inwardly projecting cylindrical stator portion, the rotor block coupled to an end shaft by an axial fan portion for inducting a charge and for communicating the charge to the at least one intake channel of the central inwardly projecting portion of the back stator portion, the rotor block rotatable within a rotor chamber portion of the internal volume lying between the central inwardly projecting cylindrical stator portion and an inner peripheral wall of the internal volume, the rotor block comprising radial compartments equidistantly spaced apart about the rotation axis of the device, each of the radial compartments open to a peripheral surface of the block and having a respective inner opening communicating with the at least one axially aligned radial port in the central inwardly projecting cylindrical stator portion during the course of each rotation of the rotor assembly, the rotor assembly further comprising radially extending vane slots disposed within the rotor block in alternating relation with the radial compartments;
- and
- vane assemblies, each vane assembly comprising a respective inner flat portion slidably received in a respective rotor slot and a respective cam follower captured within the cam track.
3 more elements
A rotary power device operable as one of a pump and an expander, the device comprising:
- a stator having an internal volume having an oval cross-section transverse to an axis of rotation and comprising front and back stator portions mating along a medial transverse plane perpendicular to the axis of rotation;
- the front stator portion comprising a central throughhole, the back stator portion comprising a central inwardly projecting cylindrical portion extending into the internal volume along the axis of rotation, the central inwardly projecting cylindrical portion comprising at least one intake channel communicating with at least one pair of diagonally opposed peripheral intake ports, the intake channel for receiving an intake fluid charge passing between blades of an axial fan portion of a rotor block;
- a rotor assembly comprising:
- an end shaft rotatable about the axis of rotation and extending outwardly from the throughhole in the front stator portion, the end shaft connected to the rotor block by the axial fan portion;
- the rotor block comprising a central cylindrical bore for receiving the central inwardly projecting cylindrical stator portion, the rotor block rotatable within a rotor chamber portion of the internal volume lying between the central inwardly projecting cylindrical stator portion and an inner peripheral wall of the internal volume;
- radial compartments equidistantly spaced apart about the axis of rotation, each of the radial compartments open to a peripheral surface of the block, each of the radial compartments having a respective inner opening communicating with the at least one port in the peripheral wall of the central inwardly projecting cylindrical stator portion at least once during the course of each rotation of the rotor assembly;
- radially extending vane slots disposed within the rotor block in an alternating relation with the radial compartments;
- and
- vane assembles, comprising respective inner flat portions slidably received in respective vane slots and respective cam followers slidably received in a cam track formed in the stator.
6 more elements
A supercharged two-phase internal combustion engine comprising
- a stator defining an internal volume having an oval cross-section transverse to an axis of rotation, the stator comprising respective front and back stator portions comprising respective mating surfaces for mating along a medial plane transverse to the axis of rotation, the front and back stator portions comprising respective cam grooves in mating surfaces to define a cam track encircling the internal volume and communicating with the internal volume through an encircling slot formed from recessed wall portions of the respective mating surfaces of the back and front stator portions;
- the front stator portion comprising a central throughhole for rotatably carrying an end shaft;
- the back stator portion comprising a central inwardly projecting cylindrical portion projecting into the internal volume along the axis of rotation, the central inwardly projecting cylindrical portion comprising at least one intake channel having at least one pair of diagonally disposed peripheral intake ports;
- a rotor assembly comprising a rotor block comprising a central cylindrical bore for receiving the central inwardly projecting cylindrical stator portion, the rotor block coupled to the end shaft by an axial fan portion for inducting a charge into the at least one intake channel in the central inwardly projecting cylindrical stator portion of the back stator portion the rotor block rotatable within a rotor chamber portion of the internal volume lying between the central inwardly projecting cylindrical stator portion and an inner peripheral wall of the internal volume, the rotor block comprising radial compartments equidistantly spaced apart about the axis of the device, each of the rotor compartments open to a peripheral surface of the block, each of the rotor compartments having a respective inner opening communicating with the at least one axially aligned radial port in the central inwardly projecting cylindrical stator portion during the course of each rotation of the rotor assembly, the rotor assembly further comprising radially extending vane slots disposed within the rotor block in alternating relation with the radial compartments;
- and
- vane assembles comprising respective inner flat portions slidably received in respective rotor slots and respective cam followers adjacent respective outer tips of associated inner flat portions, the cam followers captured within the cam track.
3 more elements
Dependencies are inferred from the claim text.