Differential Dynamics Corporation

United States of America

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IPC Class
F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type 8
F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy 7
F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action 7
F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts 6
F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow 5
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Pending 2
Registered / In Force 23
Found results for  patents

1.

CONVERTING VARIABLE RENEWABLE ENERGY TO CONSTANT FREQUENCY ELECTRICITY BY A VOLTAGE REGULATED SPEED CONVERTER, A VOLTAGE-CONTROLLED MOTOR GENERATOR SET OR A POWER CONVERTER

      
Document Number 03186081
Status Pending
Filing Date 2023-01-09
Open to Public Date 2023-08-08
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

A river, tidal, wave or ocean current turbine, a wind turbine or a solar panel harnesses an optimum value of hydrokinetic energy from variable wind/water flow or from the sun. A harnessing module comprising a propeller facing, for example, wind/water flow and a generator driven by the propeller, thus may harness variable water (wind and solar) renewable energy and may be preferably connected to feed forward electricity source or preferable a feedback variable electrical load to an electrical voltage regulator apparatus of a land module and to a motor generator set or power converter by a flexible electrical cable for receiving a variable rotational speed converted to variable electrical frequency, the voltage regulator automatically providing a predetermined minimum electrical power output at constant frequency to the motor generator set or a power converter and output at constant frequency to a constantly varying grid load. The variable electrical input from harnessing modules is delivered to the voltage regulator and converted to a constant electrical frequency by the motor generator set. In alternative embodiments, the voltage regulator is replaced by a voltage regulator in series with a servomotor and a variable voltage transformer and, in a third embodiment, the motor generator set is replaced by a power converter.

IPC Classes  ?

  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03D 80/00 - Details, components or accessories not provided for in groups
  • F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
  • F16H 59/40 - Output shaft speed
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • H02P 9/06 - Control effected upon clutch or other mechanical power transmission means and dependent upon electric output value of the generator

2.

CONVERTING VARIABLE RENEWABLE ENERGY TO CONSTANT FREQUENCY ELECTRICITY BY A VOLTAGE REGULATED SPEED CONVERTER, A VOLTAGE-CONTROLLED MOTOR GENERATOR SET OR A VOLTAGE CONVERTER

      
Application Number 17666985
Status Pending
Filing Date 2022-02-08
First Publication Date 2023-01-12
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A river, tidal, wave or ocean current turbine, a wind turbine or a solar panel harnesses an optimum value of renewable energy from variable water flow or wind flow or from electromagnetic energy from sunlight harnessed by photovoltaic conversion to electricity. A harnessing module comprising a propeller facing, for example, water or wind flow and a generator driven by the propeller, thus may harness variable electric power from water (or wind) renewable energy and may be preferably connected to feedforward electricity source and preferably a feedback variable electrical load to an electrical voltage regulator apparatus of a land module and to a motor generator set or voltage converter by a flexible electrical cable for receiving a variable rotational speed converted to variable electrical frequency, the voltage regulator automatically providing a predetermined minimum electrical power/voltage output at constant frequency to the motor generator set or a voltage converter and output at constant frequency to a constantly varying grid load. The variable electrical input from harnessing modules is delivered to the voltage regulator and converted to a constant electrical frequency by the motor generator set. In alternative embodiments, the voltage regulator is replaced by a voltage regulator in series with a servo motor and a variable voltage transformer and, in a third embodiment, the voltage regulator is replaced by a power converter.

IPC Classes  ?

  • F03D 9/00 - Adaptations of wind motors for special useCombinations of wind motors with apparatus driven therebyWind motors specially adapted for installation in particular locations
  • H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
  • G05F 1/12 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC
  • H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
  • F03B 1/00 - Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on bladed or like rotors, e.g. Pelton wheelsParts or details peculiar thereto
  • F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
  • F03D 15/00 - Transmission of mechanical power
  • F03D 7/02 - Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor

3.

Voltage converter-controlled damless hydrokinetic river turbines

      
Application Number 17012426
Grant Number 11111898
Status In Force
Filing Date 2020-09-04
First Publication Date 2021-06-17
Grant Date 2021-09-07
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A river, tidal, wave or ocean current or a wind turbine for generating electricity harnesses a predetermined minimum or baseload value of hydrokinetic/wind energy from variable water/wind flow. A harnessing module may have a waterwheel or propeller and a-generator or a waterwheel or propeller alone. A harnessing module harnesses wind or water energy and may be connected to a land module of electrical and mechanical apparatus by an electrical cable. Received variable electrical input from the harnessing module is converted to a-constant electrical frequency by a connected generator feeding a grid, for example, using a Hummingbird speed converter. The received variable electrical load power may be mechanically corrected by feedback to a Kingfisher converter. An output generator to output constant frequency may use a voltage regulator, a variable voltage transformer and a control motor to provide feed forward control.

IPC Classes  ?

  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • F03B 7/00 - Water wheels
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action

4.

MECHANICAL SPEED CONVERTER-CONTROLLED WIND AND HYDROKINETIC TURBINES

      
Document Number 03112223
Status In Force
Filing Date 2019-12-23
Open to Public Date 2020-07-02
Grant Date 2023-08-01
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

A wind or water flow (hydrokinetic) turbine for harnessing a predetermined minimum or baseload value of renewable electric energy from the wind or water flow energy received at a harnessing module comprises the harnessing module, a controlling module, and a generating module. Harnessed input power is provided to a power-balanced three variable mechanical gear control system when a control power of power versus load graph is crossed by an output power line graph to achieve an electrical advantage at a generator output. The three variable mechanical motion control system or "motionics" comprises a control assembly of first and second spur/helical/bevel/miter/ring gear assemblies or transgear assemblies with an adjustment in between to eliminate variations from constant rotational speed input. Constant electric power at constant frequency are delivered to a variable load.

IPC Classes  ?

  • F03D 15/10 - Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
  • F16H 1/20 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
  • F16H 41/24 - Rotary fluid gearing of the hydrokinetic type Details
  • F16H 61/48 - Control of exclusively fluid gearing hydrodynamic

5.

SCALABLE AND EFFICIENT MECHANICAL SPEED CONVERTER-CONTROLLED WIND AND HYDROKINETIC TURBINES

      
Application Number US2019068418
Publication Number 2020/139863
Status In Force
Filing Date 2019-12-23
Publication Date 2020-07-02
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

A wind or water flow (hydrokinetic) turbine for harnessing a predetermined minimum or baseload value of renewable electric energy from the wind or water flow energy received at a harnessing module comprises the harnessing module, a controlling module, and a generating module. Han's Principle is that, in a torque balanced three variable Hummingbird speed converter system, from a harnessed input power (input), the generated electric power (output) must exceed the electric power used for the control power (control input) and the input power must exceed the summation of control power and output power. Harnessed input power is provided to a power-balanced three variable mechanical gear control system when a control power of power versus load graph is crossed by an output power line graph to achieve an electrical advantage at a generator output. The three variable mechanical motion control system or "motionics" comprises a Hummingbird control assembly of first and second spur/helical/bevel/miter/ring gear assemblies or Transgear assemblies with an adjustment in between to eliminate variations from constant rotational speed input. The Hummingbird mechanical variable to constant speed control, a control motor and a generator among other components may be mounted on land or a floating platform. Constant electric power at constant frequency are delivered to a variable load.

IPC Classes  ?

  • F16H 61/48 - Control of exclusively fluid gearing hydrodynamic
  • F16H 41/24 - Rotary fluid gearing of the hydrokinetic type Details
  • F16H 1/20 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
  • F03D 15/10 - Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members

6.

Concentric wing turbines

      
Application Number 16701741
Grant Number 10815968
Status In Force
Filing Date 2019-12-03
First Publication Date 2020-06-18
Grant Date 2020-10-27
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A harnessing module for harnessing renewable wind and water energy has opposing concentric wings for rotation about a turbine shaft having a hub having a wing support shaft for supporting each wing of at least one pair of opposing concentric wings for use in generating renewable electrical energy. Each concentric wing of the opposing concentric wings may have a circular leading edge or a curved leading edge for facing one of air and water flow. Hence, the opposing concentric wings rotate about the turbine shaft in-line with a horizontal flow of air or water such that the turbine shaft faces a flow direction of the air or water and forms a harnessing module for generating electricity from either the wind or water flow.

IPC Classes  ?

  • F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
  • F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
  • F03D 15/10 - Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
  • F03B 7/00 - Water wheels
  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
  • F03D 3/04 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
  • F03D 80/70 - Bearing or lubricating arrangements
  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • F03B 11/02 - Casings

7.

Speed converter-controlled river turbines

      
Application Number 16691145
Grant Number 10941749
Status In Force
Filing Date 2019-12-11
First Publication Date 2020-03-26
Grant Date 2021-03-09
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A river turbine for harnessing a predetermined minimum or baseload value of hydrokinetic energy from river current received at a harnessing module has three modules: the harnessing module, a controlling module and a generating module. Han's principle is that, in a torque balanced speed converter Hummingbird system, the generated electric power (output) from a harnessed input power (input) must exceed the electric power used for the control motor (control). Harnessed power is provided to the power balanced three variable mechanical control system when a control power line graph is crossed by an output power line graph to achieve an electrical advantage. The three variable mechanical motion control system includes a Hummingbird control assembly of first and second spur/helical gear, first and second ring gear and first and second bevel/miter gear Transgear gear assemblies.

IPC Classes  ?

  • F03B 15/00 - Controlling
  • F16H 3/44 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
  • F03B 13/10 - Submerged units incorporating electric generators or motors
  • F03B 7/00 - Water wheels

8.

Expandable power marine hydrokinetic turbines, pumps, compressors and transmissions

      
Application Number 16233365
Grant Number 10947956
Status In Force
Filing Date 2018-12-27
First Publication Date 2020-03-19
Grant Date 2021-03-16
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A marine hydrokinetic electric power or wind power generator may have three modules: a harnessing module, a controlling module, and a generating module. The harnessing module may have one of a propeller and a waterwheel for receiving wind or water energy. The controlling module may have a gearbox comprising gears for matching the expected wind or water generating power to an output power, a control motor, and a three variable gear assembly. The three variables are a variable input, a constant output and a constant speed control motor input variable. The variable input is received from the harnessing module and the constant output is delivered to an electricity generator. A generating module (generator) generates output power which may be a multiple of ten times the power rating of the controlling module (the constant speed control motor).

IPC Classes  ?

  • F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
  • F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
  • F03D 15/10 - Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
  • F03B 7/00 - Water wheels
  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
  • F03D 3/04 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
  • F03D 80/70 - Bearing or lubricating arrangements
  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • F03B 11/02 - Casings

9.

Electro-magnetic ratchet control apparatus and method

      
Application Number 16267667
Grant Number 10948058
Status In Force
Filing Date 2019-02-05
First Publication Date 2019-08-08
Grant Date 2021-03-16
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A speed converter converting infinitely variable reciprocating input to uni-directional output, for example, comprising a driver, the driver comprising a variable pitch cam and a rack gear and one-way clutch bearings or Sprags and output shaft, the driver having an oblong shape may be converted to provide direction control in either of two directions and free-wheeling. The one-way clutch bearings or Sprags of a first Goldfinch speed converter are modified to comprise, concentric with the output shaft, a permanent magnet imbedded in a driven gear and direction controlling stator coils. A plurality of four (or more) electrical pulses (sine curves) may be applied to the stator coils to provide three possible outputs of desired speed: a forward output direction, a neutral or free-wheeling output and a reverse output direction. In this manner, an electro-magnetic ratchet control system may modify the speed converter to incorporate speed control, engine braking, and clockwise and counterclockwise output shaft direction control as well.

IPC Classes  ?

  • F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts
  • F16D 27/01 - Magnetically-actuated clutchesControl or electric circuits therefor with permanent magnets
  • F16H 3/52 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears

10.

River and tidal turbine with power control

      
Application Number 16134595
Grant Number 10982645
Status In Force
Filing Date 2018-09-18
First Publication Date 2019-02-14
Grant Date 2021-04-20
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A river or tidal turbine for generating a minimum predetermined value of electricity from river current received at a harnessing module comprises a harnessing module, a control module and a generating module. Han's principle is that harnessed power from a river or tidal turbine must exceed a predetermined value of control power used by the turbine. Minimum power is lost in a three variable closed mechanical control system. The three variable closed mechanical system comprises a Hummingbird control assembly of first and second spur/helical gear assemblies which may be preferably mechanically simplified. The Hummingbird control, a control motor and a generator among other components may be mounted on a floating platform for delivery of constant power at constant frequency given sufficient input from a waterwheel harnessing module driven by river current flow in at least one direction. A tidal embodiment may comprise a moveable hatch for permitting the waterwheel to turn in foe same rotational direction regardless of direction of water current flow.

IPC Classes  ?

  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • F03D 15/10 - Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
  • F03D 17/00 - Monitoring or testing of wind motors, e.g. diagnostics
  • F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
  • F16H 3/06 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with worm and worm-wheel or gears essentially having helical or herring-bone teeth
  • F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
  • F03D 15/00 - Transmission of mechanical power
  • F03D 3/04 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels

11.

Renewable energy marine hydrokinetic or wind turbine

      
Application Number 15267655
Grant Number 09912209
Status In Force
Filing Date 2016-09-16
First Publication Date 2017-02-02
Grant Date 2018-03-06
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

Three controls, three variable gear assemblies, a hatch, and a variable torque and power generator (VT&PG), may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed. A three variable spur/helical gear assembly of sun and planetary gear sets is a mechanical three variable control and referred to herein as a Transgear™ gear assembly, simply Transgear. A hatch wraps around a waterwheel and may control the amount of water inlet to the system by opening and closing and may be controlled by Transgears and a VT&PG. Two Transgears may comprise a constant speed motor control and produce required frequency and voltage and be reduced in part count and complexity. The VT&PG of a marine hydrokinetic or wind power generator may be used as a low torque generator and a high power-rated generator in these applications and may generate more electric power than a conventional fixed power generator (the rotor axially aligned to overlap the stator in a conventional manner) over a wider input range.

IPC Classes  ?

  • F03B 13/00 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates
  • F03B 13/10 - Submerged units incorporating electric generators or motors
  • H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • F03D 15/00 - Transmission of mechanical power
  • H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • F03D 3/04 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
  • F03D 3/00 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
  • H02P 1/04 - Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
  • F16H 48/06 - Differential gearings with gears having orbital motion

12.

Three variable and four variable transgear assemblies

      
Application Number 15011772
Grant Number 09506534
Status In Force
Filing Date 2016-02-01
First Publication Date 2016-06-16
Grant Date 2016-11-29
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) using Transgear gear assemblies provides rotary motion control without any requirement for connecting or disconnecting gear meshes or use of a clutch. A bevel, miter, ring or spur gear Transgear gear assembly may be defined as a gear assembly having three or four of variables, input, output and control, assigned in a manner so as to provide, for example, one of accumulation of inputs and direction control. A four variable Transgear gear assembly may be one of a spur gear Transgear gear assembly having an additional ring gear surrounding a set of planetary gears or a bevel gear Transgear gear assembly having a double bevel gear, an outer bevel gear and a bevel gear meshing to the outer bevel gear sleeve surrounding an inner beveled gear and comprising three orthogonal carrier shafts. Rather than two sets of three variable Transgear gear assemblies connected in series or in parallel, a four variable Transgear gear assembly may provide, for example, a direction control function with just one gear assembly with two of the four variables assignable as control variables.

IPC Classes  ?

  • F16H 3/74 - Complexes, not using actuatable speed-changing or regulating members, e.g. with gear ratio determined by free play of frictional or other forces
  • F16H 3/76 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
  • F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
  • F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
  • H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
  • H02P 9/42 - Arrangements for controlling electric generators for the purpose of obtaining a desired output to obtain desired frequency without varying speed of the generator
  • F16H 3/48 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
  • F16H 15/50 - Gearings providing a continuous range of gear ratios
  • F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts

13.

Marine hydrokinetic turbine

      
Application Number 14838867
Grant Number 09476401
Status In Force
Filing Date 2015-08-28
First Publication Date 2016-01-14
Grant Date 2016-10-25
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A marine hydrokinetic electric power generator comprises one of a stator and a rotor which is adjustably movable through an infinite number of positions from being proximate to one another so that their magnetic fields overlap mostly to a position such that the rotor is most distant from the stator and has little overlap of magnetic field strength. Hatch and speed control may be also provided by a spur/helical gear assembly of sun and planetary gear sets referred to herein as a Transgear™ gear assembly. The variable (or fixed) power generator in operation may comprise one of a rotor and a stator being out of phase with one another by an angle, for example, the one of the rotor or the stator leading or lagging the other and the phase angle, frequency or voltage of output power to a power grid corrected responsive to inputs from the power grid and the marine hydrokinetic turbine.

IPC Classes  ?

  • H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
  • F03D 3/04 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type

14.

Adjustable assembly of rotor and stator and applications thereof with a variable power generator

      
Application Number 14829354
Grant Number 09490736
Status In Force
Filing Date 2015-08-18
First Publication Date 2015-12-10
Grant Date 2016-11-08
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

A variable power generator comprises one of a stator and a rotor which is adjustably movable through an infinite number of positions from being proximate to one another so that their magnetic fields overlap to a position such that the rotor is most distant from the stator and has little overlap of magnetic field strength. The variable power generator in operation may comprise one of a rotor and a stator being out of phase with one another by an angle, for example, the one of the rotor or the stator leading or lagging the other. In this instance, a motor such as a servo motor may be used to rotationally compensate for the out-of-phase angle by radially moving the rotor with respect to the stator or vice versa.

IPC Classes  ?

  • H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
  • H02P 9/02 - Arrangements for controlling electric generators for the purpose of obtaining a desired output Details
  • F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
  • F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • B60L 11/14 - with provision for direct mechanical propulsion
  • B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
  • F03D 9/00 - Adaptations of wind motors for special useCombinations of wind motors with apparatus driven therebyWind motors specially adapted for installation in particular locations

15.

THREE, FOUR, FIVE AND N VARIABLE TRANSGEAR ASSEMBLIES

      
Application Number US2015025121
Publication Number 2015/160623
Status In Force
Filing Date 2015-04-09
Publication Date 2015-10-22
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung, Soo

Abstract

Infinitely variable motion control (IVMC) using Transgear gear assemblies provides rotary motion control without any requirement for connecting or disconnecting gear meshes or use of a clutch. A bevel, miter, ring or spur gear Transgear assembly, defined as a gear assembly having three of variables, input, output and control assigned in a manner so as to provide, for example, one of accumulation of inputs and direction control. A four variable Transgear gear assembly may be one of a spur gear Transgear gear assembly having an additional ring gear surrounding a set of planetary gears or a bevel gear Transgear gear assembly having a double bevel gear, an outer bevel gear, and a bevel gear meshing to the outer bevel gear. A five variable spur/ring gear assembly may comprise an additional outer ring gear whereby a first additional outer ring gear is meshed with a first planetary gear of a set of two planetary gears and a second additional outer ring gear is meshed with the second planetary gear of the set of two planetary gears. An N variable spur/ring gear assembly may be constructed having a multiple diameter output gear with matching planetary gears and multiple control ring gears.

IPC Classes  ?

  • F16H 3/70 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
  • F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear

16.

Three variable and four variable transgear assemblies

      
Application Number 14668315
Grant Number 09303733
Status In Force
Filing Date 2015-03-25
First Publication Date 2015-07-23
Grant Date 2016-04-05
Owner Differential Dynamics Corporation (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) using Transgear gear assemblies provides rotary motion control without any requirement for connecting or disconnecting gear meshes or use of a clutch. A bevel, miter, ring or spur gear Transgear gear assembly may be defined as a gear assembly having three or four of variables, input, output and control, assigned in a manner so as to provide, for example, one of accumulation of inputs and direction control. A four variable Transgear gear assembly may be one of a spur gear Transgear gear assembly having an additional ring gear surrounding a set of planetary gears or a bevel gear Transgear gear assembly having a double bevel gear, an outer bevel gear and a bevel gear meshing to the outer bevel gear sleeve surrounding an inner beveled gear and comprising three orthogonal carrier shafts. Rather than two sets of three variable Transgear gear assemblies connected in series or in parallel, a four variable Transgear gear assembly may provide, for example, a direction control function with just one gear assembly with two of the four variables assignable as control variables.

IPC Classes  ?

  • F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts
  • F16H 15/50 - Gearings providing a continuous range of gear ratios
  • F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
  • H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
  • H02P 9/42 - Arrangements for controlling electric generators for the purpose of obtaining a desired output to obtain desired frequency without varying speed of the generator

17.

RUN-OF-THE-RIVER OR OCEAN CURRENT TURBINE

      
Application Number US2014035487
Publication Number 2014/200622
Status In Force
Filing Date 2014-04-25
Publication Date 2014-12-18
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung, Soo

Abstract

A run-of-the-river or ocean current turbine may comprise a hatch 1612 and a slanted block 1605 having protector ribs 1630 for directing water flow to a waterwheel 1608, The hatch may be controlled by a plurality of Transgear™ gear assemblies 2210, 2220, 2230, 2240 for varying the amount of water flow to the waterwheel from extreme drought to flood conditions so that the waterwheel may turn at rated speeds and within a predetermined range. The Transgear gear assemblies may comprise an accumulator 3010 for accumulating a rough and a fine tuned waterwheel speed. The Transgear assemblies may comprise embodiments of power take-off switches for, for example, bi-directional or clockwise and counterclockwise waterwheel shaft rotation, The turbine may be aligned for top-feed, side-feed or bottom feed of water and may comprise a tail wing or first and second turbines facing in opposite directions to capture high and low tidal flow.

IPC Classes  ?

  • F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
  • F03B 15/00 - Controlling
  • F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears

18.

ONE-STROKE INTERNAL COMBUSTION ENGINE

      
Application Number US2014034859
Publication Number 2014/189640
Status In Force
Filing Date 2014-04-22
Publication Date 2014-11-27
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung, Soo

Abstract

One-stroke internal combustion engines may comprise reciprocating pistons which are either straight or rotary. Three principles are required to make one -stroke engines work: create four dedicated chambers, assign the chambers with coordinated functions, and make pistons move in unison. The functions will be assigned only to a single stroke but an Otto cycle produces a repeating four stroke cycle. Since four functions are performed simultaneously during one stroke, every stroke becomes a power stroke, in reality, 1 -stroke engines are physically rearranged 4-stroke engines. Both straight and rotary I -stroke engines can be modified to comprise opposed piston opposed cylinder (OPOC) engines. The reciprocating piston output of I -stroke pistons may be converted to continuously rotating output by using crankshafts with split bushings or newly developed Crankgears with conventional bearings. A I -stroke engine may require only one crankshaft and thus nun' reduce the number of parts and increase the specific power ratio.

IPC Classes  ?

  • F02B 75/00 - Other engines, e.g. single-cylinder engines
  • F02B 75/40 - Other reciprocating-piston engines
  • F02B 53/00 - Internal-combustion aspects of rotary-piston or oscillating-piston engines
  • F02B 55/00 - Internal-combustion aspects of rotary pistonsOuter members for co-operation with rotary pistons

19.

Infinitely variable direction control

      
Application Number 14155401
Grant Number 08986149
Status In Force
Filing Date 2014-01-15
First Publication Date 2014-05-22
Grant Date 2015-03-24
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives a direction control assembly (forward, reverse and neutral) and first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator.

IPC Classes  ?

  • F16H 3/52 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
  • F03B 15/02 - Controlling by varying liquid flow
  • F16H 15/50 - Gearings providing a continuous range of gear ratios
  • F03B 3/18 - Stator bladesGuide conduits or vanes, e.g. adjustable
  • F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
  • F03D 11/02 - Transmission of power, e.g. using hollow exhausting blades
  • F16H 3/56 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears both central gears being sun gears
  • F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts
  • F16H 3/62 - Gearings having three or more central gears

20.

Infinitely variable pumps and compressors

      
Application Number 14155404
Grant Number 08992370
Status In Force
Filing Date 2014-01-15
First Publication Date 2014-05-22
Grant Date 2015-03-31
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. Various embodiments of an infinitely variable pump or compressor are described.

IPC Classes  ?

  • F16H 25/04 - Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion
  • F03B 15/02 - Controlling by varying liquid flow
  • F16H 15/50 - Gearings providing a continuous range of gear ratios
  • F16H 3/52 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
  • F03B 3/18 - Stator bladesGuide conduits or vanes, e.g. adjustable
  • F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
  • F03D 11/02 - Transmission of power, e.g. using hollow exhausting blades
  • F16H 3/56 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears both central gears being sun gears
  • F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts
  • F16H 3/62 - Gearings having three or more central gears

21.

Infinitely variable motion control (IVMC) for generators, transmissions and pumps/compressors

      
Application Number 14096171
Grant Number 09017208
Status In Force
Filing Date 2013-12-04
First Publication Date 2014-04-03
Grant Date 2015-04-28
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A bevel or spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly, a driver and a one-way clutch or ratchet bearing assembly may be used to form a cam controlled speed converter converting a given input to a variable or constant output speeds and further having direction control. All IVMC's, cam controlled IVMC, input compensated IVMC and pitch controlled IVMC may be utilized to form various embodiments of infinitely variable generators, transmissions and compressors/pumps.

IPC Classes  ?

  • F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
  • F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
  • F03D 11/00 - Details, component parts, or accessories not provided for in, or of interest apart from, the other groups of this subclass
  • F03D 11/02 - Transmission of power, e.g. using hollow exhausting blades
  • H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
  • H02P 9/42 - Arrangements for controlling electric generators for the purpose of obtaining a desired output to obtain desired frequency without varying speed of the generator
  • F16H 29/04 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts

22.

Infinitely variable motion control (IVMC) for a transmission with a differential

      
Application Number 13915785
Grant Number 08702552
Status In Force
Filing Date 2013-06-12
First Publication Date 2013-10-17
Grant Date 2014-04-22
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator.

IPC Classes  ?

  • F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing

23.

Infinitely variable motion control (IVMC) for generators, transmissions and pumps/compressors

      
Application Number 13425501
Grant Number 08641570
Status In Force
Filing Date 2012-03-21
First Publication Date 2012-09-27
Grant Date 2014-02-04
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly, a driver and a one-way clutch or ratchet bearing assembly may be used to form a cam controlled speed converter converting a given input to a variable or constant output speeds and further having direction control. All IVMC's, cam controlled IVMC, input compensated IVMC and pitch controlled IVMC may be utilized to form various embodiments of infinitely variable generators, transmissions and compressors/pumps.

IPC Classes  ?

  • F16H 3/70 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
  • F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear

24.

System and method for providing a constant output from a variable flow input

      
Application Number 13384621
Grant Number 08388481
Status In Force
Filing Date 2010-07-20
First Publication Date 2012-05-10
Grant Date 2013-03-05
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung Soo

Abstract

A system and method for providing a constant output from a variable flow input comprises a liquid flow energy input, for example, air or water for driving a constant speed generator. An inner and outer cam assembly is controlled by a control input to achieve varying eccentricity and control the output speed at an output shaft to be constant despite a varying rotational velocity input at an input shaft. A feedback control may be provided between one of the input shaft and the output shaft and the inner and outer cam assembly to maintain constant output by varying the eccentricity. The constant output may drive a constant speed generator having an infinitely variable torque generator. In this manner, a power grid may be provided with constant frequency alternating current at, for example, 50 Hz (Europe) or 60 Hz (USA). Also, a pair of non-circular gears, for example, a square gear and a cloverleaf gear may be used to reduce ripples in rotational velocity measured at the output shaft for a four OWCB constant output, variable flow input system.

IPC Classes  ?

  • B60K 17/06 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing
  • F16H 3/70 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
  • F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
  • F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators

25.

VARIABLE MOTION CONTROL DEVICES FOR TRANSMISSION AND OTHER IMPLEMENTATIONS AND METHODS OF USE THEREOF

      
Application Number US2006030449
Publication Number 2007/019313
Status In Force
Filing Date 2006-08-04
Publication Date 2007-02-15
Owner DIFFERENTIAL DYNAMICS CORPORATION (USA)
Inventor Han, Kyung, Soo

Abstract

Numerous implementations of variable motion control devices and methods of use thereof. The devices and methods provide variable output to such output devices as vehicles. The variable motion control devices are beatable between output devices and power sources, such as in vehicle transmission applications between the engine and driveline, wherein an output of a power source is input into the device, which, in turn, provides a variable output to the vehicle drive line or other output application.

IPC Classes  ?

  • F16H 3/44 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion