# US 9,752,438 B1 · Energy conversion system employing a centrifugal turbine to extract energy from a fluid flow

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- Number: US 9,752,438 B1
- Document ID: US9752438B1
- Status: Granted
- Kind: B1
- Application number: 15/393,626
- Filed: 2016-12-29
- Granted: 2017-09-05
- Earliest claimed: 2012-04-20
- Applicants: William Thomas Damron
- Inventors: William Thomas Damron
- Web page: https://patentgrep.com/patent/US9752438B1

## CPC

- F01D 1/06: traversed by the working-fluid substantially radially
- F03D 1/0625: {of the whole rotor, i.e. form features of the rotor unit}
- F03D 1/0658: {Arrangements for fixing wind-engaging parts to a hub}
- Y02E 10/72: Wind turbines with rotation axis in wind direction
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F03D: WIND MOTORS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

An energy system for converting potential and/or kinetic fluid energy into mechanical kinetic energy is provided comprising a housing configured to securely and rotatably support a centrifugal turbine and a energy transmission shaft, the housing comprising a housing fluid inlet and a housing fluid outlet, where the centrifugal turbine comprises relatively light-weight material and a plurality of chambers supported radially around a central hub and configured to function essentially as impellers to rotatably drive the energy transmission shaft upon direction of fluid into the chambers.

## Claims

### Claim 1

An energy system for converting potential and/or kinetic fluid energy into mechanical kinetic energy, the system comprising:
a housing configured to securely and rotatably support therein a centrifugal turbine and an energy transmission shaft, the housing comprising a housing fluid inlet and a housing fluid outlet,
the centrifugal turbine comprising a plurality of chambers supported radially around a central hub, the chambers comprising a chamber fluid inlet and a chamber fluid outlet, at least some of the chambers comprising,
a first wall including a planar surface, whose plane passes perpendicularly through the rotatable energy transmission shaft,
a second wall including a first curvilinear surface facing inwardly toward the first wall and configured to serve as first impeller to absorb at least some of the energy created by a force of the fluid energy delivered through the housing fluid inlet during operation, and
a third wall intersecting with the first wall and the second wall, the third wall including a second curvilinear surface facing inwardly toward the first wall and configured to serve as a second impeller to absorb at least some of the energy created by the force of the fluid energy delivered through the housing fluid inlet during operation, and
the rotatable energy transmission shaft configured to support the hub of the centrifugal turbine and configured to transmit torque to a discrete assembly to be driven by the torque of the shaft,
wherein the energy system is configured to convert the potential and/or kinetic energy of the fluid delivered to the energy system into kinetic energy.

### Claim 2 (depends on 1)

The energy system of claim 1, wherein the third wall also faces inwardly toward the second wall.

### Claim 3 (depends on 1)

The energy system of claim 1, wherein the centrifugal turbine chambers comprise a first set of chambers positioned at a first nominal distance from the hub, and wherein the centrifugal turbine comprises a second set of chambers positioned at a second nominal distance from the hub so as to provide additional surface area to absorb at least some of the energy created by the force of the fluid delivered through the housing fluid inlet during operation.

### Claim 4 (depends on 1)

The energy system of claim 1, wherein the centrifugal turbine comprises a plurality of rows of radially-positioned, concentric, chambers.

### Claim 5 (depends on 1)

The energy system of claim 1, wherein the curvilinear surface of the second wall mirrors the curvilinear surface of the third wall.

### Claim 6 (depends on 1)

The energy system of claim 1, wherein the curvilinear surface of the second wall and the curvilinear surface of the third wall are concaved surfaces.

### Claim 7 (depends on 6)

The energy system of claim 6, wherein the concave surface of the second wall mirrors the concave surface of the third wall along an axis that is perpendicular to the first wall.

### Claim 8 (depends on 1)

The energy system of claim 1, wherein the first wall extends longitudinally from a first, inlet end of the housing to a second, outlet end of the housing, and
the second wall and third wall extend longitudinally from the first, inlet end of the housing to the second, outlet end of the housing.