# US 8,147,201 B2 · Kinetic hydro power triangular blade hub > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,147,201 B2 - Document ID: US8147201B2 - Status: Granted - Kind: B2 - Application number: 11/889,251 - Filed: 2007-08-10 - Published: 2009-02-12 - Granted: 2012-04-03 - Earliest claimed: 2007-08-10 - Assignees: Verdant Power - Inventors: John Gray; Dean Corren - Web page: https://patentgrep.com/patent/US8147201B2 ## CPC - F03B 17/061: {with rotation axis substantially in flow direction} - E02B 2017/0091: {Offshore structures for wind turbines} - F05B 2230/50: Building or constructing in particular ways - F05B 2240/20: Rotors - F05B 2240/301: Cross-section characteristics - F05B 2250/11: triangular - Y02E 10/20: Hydro energy - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - F03B: MACHINES OR ENGINES FOR LIQUIDS (positive-displacement engines for liquid F03C; machines for liquids and gases F01; positive-displacement machines for liquids F04, rotary fluid gearing of the hydrokinetic type F16H41/00) - E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) - F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A rotor hub mounting arrangement for removably mounting a plurality of turbine rotor blades to the rotor hub in a compact and secure manner. The rotor hub includes an internal mounting assembly, preferably comprised of a series of interconnected mounting plates, positioned adjacent a series of foil shaped openings in the rotor hub into which the root end of turbine blades can be inserted and removably mounted to the internal mounting assembly. ## Claims ### Claim 1 A mounting arrangement for holding a plurality of turbine rotor blades comprising a hub having a plurality of equally spaced openings extending thereabout for removably receiving a root end of a one of a plurality of rotor blades, the root end of each rotor blade including a root mount formed thereon, a mounting assembly secured internally within the hub and including a like plurality of interconnected mounting plates as there are rotor blades, the plurality of mounting plates being uniformly positioned about the hub to cooperate with the plurality of equally spaced openings, an exterior frame mounted to opposing sides of the plurality of mounting plates with each of the plurality of the mounting plates having an outer end that terminates at a cylindrical sidewall, and a fastening mechanism for removably connecting each root mount to one of the plurality of mounting plates within the mounting assembly. ### Claim 2 (depends on 1) The mounting arrangement as in claim 1 wherein the mounting assembly further includes a shaped interior defined by interconnecting portions of the plurality of mounting plates and a shaft coupling mounted within the shaped interior. ### Claim 3 (depends on 1) The mounting arrangement as in claim 1 wherein the mounting assembly further includes a flat mounting plate for each of the plurality of rotor blades. ### Claim 4 (depends on 1) The mounting arrangement as in claim 1 wherein the mounting assembly includes three mounting plates that intersect and are fixed to one another within the hub. ### Claim 5 (depends on 4) The mounting arrangement as in claim 4 wherein the root mount comprises a root plate. ### Claim 6 (depends on 5) The mounting arrangement as in claim 5 wherein mating surfaces of the mounting plate and root plate are flat. ### Claim 7 (depends on 5) The mounting arrangement as in claim 5 wherein the mating surfaces of the root plate and the mounting plate are complimentary shaped to fit together. ### Claim 8 (depends on 4) The mounting arrangement as in claim 4, wherein the exterior frame comprises an end plate comprised of a plurality of interconnecting webs. ### Claim 9 (depends on 8) The mounting arrangement as in claim 8 further including a shaft coupling mounted centrally of the hub. ### Claim 10 (depends on 4) The mounting arrangement as in claim 4 wherein the mounting plates extend across substantially equal chords of the rotor hub. ### Claim 11 (depends on 1) The mounting arrangement as in claim 1 wherein the root of the rotor blade has a uniform foil shape between a hub intersection point and the mounting assembly. ### Claim 12 A mounting arrangement for holding a plurality of turbine rotor blades comprising a hub having a plurality of equally spaced openings extending thereabout for removably receiving a root end of a rotor blade, a mounting assembly secured internally within the hub, the root end having a root mount formed thereon, and a fastening mechanism for removably connecting the root mount to the mounting assembly, wherein the mounting assembly includes three mounting plates that intersect and are fixed to one another within the hub. ### Claim 13 (depends on 12) The mounting arrangement in claim 12 wherein the three mounting plates are flat plates. ### Claim 14 A mounting arrangement for holding a plurality of turbine rotor blades comprising: a hub having a plurality of equally spaced openings extending thereabout for removably receiving a root end of a rotor blade that includes a root mount formed thereon, a mounting assembly secured internally within the hub, the mounting assembly including a plurality members each having an inner end and an outer end, and arranged so that the inner end of each member contacts another member at a point between the inner and outer ends and form a shaped interior recess therewithin; and a fastening mechanism for removably connecting the root mount to the mounting assembly. ### Claim 15 (depends on 14) The mounting arrangement in claim 14 wherein the plurality of members each comprise a flat plate. ### Claim 16 (depends on 14) The mounting arrangement in claim 14 wherein the plurality of members comprise mounting plates that extend across substantially equal chords of the rotor hub.