AU2016219579A1 - Power generation system - Google Patents

Power generation system Download PDF

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Publication number
AU2016219579A1
AU2016219579A1 AU2016219579A AU2016219579A AU2016219579A1 AU 2016219579 A1 AU2016219579 A1 AU 2016219579A1 AU 2016219579 A AU2016219579 A AU 2016219579A AU 2016219579 A AU2016219579 A AU 2016219579A AU 2016219579 A1 AU2016219579 A1 AU 2016219579A1
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AU
Australia
Prior art keywords
battery
hydraulic
energy
motor
main motor
Prior art date
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Abandoned
Application number
AU2016219579A
Inventor
Gye-Song CHOI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of AU2016219579A1 publication Critical patent/AU2016219579A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/20—Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transportation (AREA)

Abstract

[Summary] This invention is for an environment-friendly power generation system involved self-recharging, which consists of i) the 1" battery that supplies electrical energy, ii) the 2 "d battery that supplies electrical energy, iii) a main motor that is driven by voltage delivered from the above 1" battery, iv) a hydraulic pump that is connected with a main motor and converts mechanical energy supplied into pressure energy of hydraulic fluid of a hydraulic system, v) a hydraulic motor that converts pressure energy of the hydraulic fluid supplied from a hydraulic pump into mechanical energy, vi) a generator that is connected with a hydraulic motor, vii) an inverter that is connected with a generator, viii) a rotation axis that is connected with a hydraulic motor and transfers the energy generated at a hydraulic motor to the outside, and ix) a control member that controls a) to drive a main motor with the energy supplied from the 1" battery, b) to charge the 1" battery with the electrical energy supplied at an inverter if the voltage of the 1" battery drops less a certain set value, c) to drive a main motor with the energy supplied from the 2"d battery during charging the 1" battery, d) to charge the 2"d battery with the electrical energy supplied at the above inverter if the voltage of the 2"d battery drops less a certain set value, e) to drive a main motor with the energy supplied from the 1" battery during charging the 2"d battery. It has various effects that i) is able for self-charging; ii) can generate power for a long time even using small source of power; iii) is eco-friendly due to the fact that there is no fear of environmental pollution without use of all kinds of fluid fuels manufactured by processed crude oil; iv) can considerably downsize the sizes of power-driven machines and equipment due to the fact that it can be manufactured as a compact size; v) can significantly reduce energy consumption due to the fact that it is able for self-charging; and vi) is able for self-charging to be installed at various power-driven machines and equipment. [Figure accompanying the Abstract] Drawing 1 [Drawing I] [Drawing 2] ,S5 S4 < <

Description

[Title of Invention]
Power generation system [Technical Field]
This invention is for an environment-friendly power generation system involved self-recharging, further in detail, which i) can generate power for a long time even using small source of power through self-charging; ii) is eco-friendly without use of all kinds of fluid fuel generated from processed crude oil and the fear of environmental pollution; iii) can significantly downsize the size of every machine and equipment which needs power due to the fact that it can be manufactured as a compact size; iv) is remarkably able to reduce energy consumption due to the fact that it is able for self-charging; and v) can be installed into various kinds of power-driven machinery and equipment.
[Background Art of the Invention]
Generally, machines and/or equipment such as all kinds of transportation machinery like a vehicle, a vessel, etc., all kinds of agricultural machinery like a weeder, a crop duster, a pruning shears, etc., industrial machinery, construction machinery and so on are power-operated.
In addition, most of machines and equipment that have been developed and used up to now have become a main cause of exhaust gas or environmental pollution, etc. by using all kinds of fluid energy generated from processed crude oil.
Also, the existing machines and equipment, etc. have had a problem of excessive energy consumption due to the fact that it needed to frequently supplement or supplied energy due to their short duration of use when using them under high load state.
They also have had a problem that they took up a lot of space to be installed due to the fact that it is impossible for a part of them to be manufactured as a compact size and were heavy.
Further, they have had a problem that it is difficult to pursue the universality of a power generation system due to the fact that they were designed to consume a particular type of energy only.
[Contents of the Invention] [Problem to be solved by the Invention]
This invention is suggested to solve whole problems aforementioned and the objective is to provide an environment-friendly power generation system involved self-recharging that i) it can generate power for a long time even using small source of power through self-charging; ii) is eco-friendly without use of all kinds of fluid fuel generated from processed crude oil and the fear of environmental pollution; iii) can significantly downsize the size of every machine and equipment which needs power due to the fact that it can be manufactured as a compact size; iv) is remarkably able to reduce energy consumption due to the fact that it is able for self-charging; v) can be installed into various kinds of power-driven machinery and equipment.
[Means for Solving Problems]
To accomplish above objective, an environment-friendly power generation system involved self-recharging under this invention features i) The 1st battery providing electrical energy, ii) The 2nd battery providing electric energy, iii) a main motor operated by voltage delivered from the 1st battery aforementioned, iv) a hydraulic pump converting mechanical energy supplied into pressure energy of hydraulic fluid(tramp oil) of a hydraulic system by being connected with a main motor mentioned in iii) above, v) a hydraulic motor converting the pressure energy into mechanical energy by being supplied with hydraulic fluid(tramp oil) having pressure energy from a hydraulic pump mentioned iv) above, vi) a generator connected with a hydraulic motor, vii) an inverter connected with a generator aforementioned, viii) a rotation axis delivering energy generated at a hydraulic motor aforementioned to the outside by being connected with a hydraulic motor, and ix) a control member that controls a) to drive a main motor aforementioned using energy supplied from the 1st battery aforementioned, b) to charge the 1st battery aforementioned with electrical energy supplied from an inverter aforementioned if the voltage of the 1st battery drops below a certain set value, c) to drive a main motor aforementioned with energy supplied from the 2nd battery aforementioned during charging the 1st batter, d) to charge the 2nd battery aforementioned with electrical energy supplied from an inverter aforementioned if the voltage of the 2nd battery drops below a certain set value, and e) to drive a main motor aforementioned with energy supplied from the 1st battery aforementioned during charging the 2nd battery.
Also, an environment-friendly power generation system involved self-recharging under this invention includes a supplementary battery; and a control member aforementioned features to control to drive a main motor with energy of a supplementary battery aforementioned if there is no enough time to charge the 1st battery or the 2nd battery aforementioned.
Also, an environment-friendly power generation system involved self-recharging under this invention features a hydraulic variable tube that is located between a hydraulic pump and a hydraulic motor; has a variable volume; and prevents damage on a hydraulic pump and a hydraulic motor by absorbing the expansion of hydraulic fluid due to the fact that its volume is simultaneously expanded when the hydraulic fluid of a hydraulic pump and a hydraulic motor is expanded by a high temperature.
The above hydraulic pump and hydraulic motor on an environment-friendly power generation system involved self-recharging under this invention feature to be embedded in one housing.
Of an environment-friendly power generation system involved self-recharging under this invention, the above inverter features to output electrical energy supplied at the above generator as one of 220V of alternating voltage or 12V of direct current voltage.
Of an environment-friendly power generation system involved self-recharging under this invention, both the above 1st battery and the 2nd battery are integrated with one housing and the above control member features to control to drive the above main motor with the energy of the supplementary battery during charging the above integrated battery.
[Effect of the Invention]
According to an environment-friendly power generation system involved self-recharging under this invention, it can generate power for a long time even using small source of power due to the fact that it is able for self-charging; is eco-friendly due to the fact that there is no fear of environmental pollution without using all kinds of fluid fuels generated from processed crud oil; can remarkably downsize the sizes of power-driven machines and equipment due to the fact that it can be manufactured as a compact size; can considerably reduce energy consumption due to the fact that it is able for self-recharging; and can be installed all kinds of power-driven machines or equipment.
This invention is explained with reference to the embodiment shown in the drawing attached hereto, but such explanation is just exemplary. Any person with ordinary skill in the art to which the invention pertains may understand that it can show various transformational and equal embodiments from the invention. Accordingly, the true scope of protection hereof shall be decided by the scope of claims only as attached.
[Brief Description of Drawings] <Drawing 1> shows the configuration of an environment-friendly power generation system involved self-recharging according to <Embodiment 1> hereof. <Drawing 2> shows the configuration of a hydraulic pump and a hydraulic motor of the environment-friendly power generation system involved self-recharging shown in <Drawing 1>.
[Concrete contents to implement this invention]
Hereafter, an environment-friendly power generation system involved self-recharging according to each preferred embodiment hereof is explained in detail on the basis of attached drawings. <Drawing 1> and <Drawing 2> show an environment-friendly power generation system involved self-recharging according to each embodiment hereof: <Drawing 1> indicates a drawing showing the configuration of an environment-friendly power generation system involved self-recharging according to an embodiment hereof and <Drawing 2> does the one showing the configuration of a hydraulic pump and a hydraulic motor of an environment-friendly power generation system involved self-recharging shown in <Drawing 1> above.
As shown in each drawing aforementioned, an environment-friendly power generation system involved self-recharging(lOO) according to an embodiment of this invention consists of the 1st battery(lO), the 2nd battery(20), a main motor(30), a hydraulic pump(40), a hydraulic motor(50), a generator(60), an inverter(70), a rotation axis(80) and a control member(90) aforementioned.
The 1st battery(lO) and the 2nd battery(20) supply electrical energy. A main motor(30) is driven by voltage delivered from the 1st battery(lO) or the 2nd battery(20). A hydraulic pump(40) is connected with a main motor(30) and converts mechanical energy supplied into pressure energy of hydraulic fluid of a hydraulic system. A hydraulic motor(50) converts pressure energy of the hydraulic fluid aforementioned into mechanical energy by being supplied the hydraulic fluid with pressure energy from a hydraulic pump(40). A generator(60) is connected with a hydraulic motor(50).
An inverter(70) is connected with a generator(60). A rotation axis(80) is connected with a hydraulic motor(50) and delivers energy generated at the hydraulic motor(50) to the outside.
The above control member(90) controls i) to drive a main motor(30) with the energy supplied from the 1st battery(lO); ii) to charge the 1st battery(lO) with the electrical energy supplied from an inverter(70) if the voltage of the 1st battery(lO) drops below a certain set value; iii) to drive a main motor(30) with the energy supplied from the 2nd battery(20) during charging the 1st battery(10); iv) to charge the 2nd battery(20) with the electrical energy supplied from the above inverter(70) if the voltage of the 2nd battery(20) drops below a certain set value; and v) to drive the above main motor(30) with the energy supplied from the 1st battery(lO) during charging the 2nd battery(20).
Meanwhile, this embodiment includes a supplementary battery(15) that has electrical energy; and it is desirable the above control member(90) controls to drive the above main motor(30) with the energy of the supplementary battery(15) when there is no enough time to charge the 1st battery(lO) or the 2nd battery(20).
In this embodiment, also, it is desirable to include a hydraulic variable tube(45) that is located between a hydraulic pump(40) and a hydraulic motor(50), has a variable volume, and prevents damage on a hydraulic pump(40) and a hydraulic motor(50) by absorbing expansion of hydraulic fluid due to the fact that its volume is simultaneously expanded when the hydraulic fluid of a hydraulic pump(40) and a hydraulic motor(50) is expanded by a high temperature.
Also, it is desirable that a hydraulic pump(40) and hydraulic motor(50) are embedded in one housing.
In this embodiment, another output is supplied. Such additional output can be generated at the above inverter(70). The above inverter(70) outputs electrical energy supplied from the above generator(60) as the one of 220V of alternating voltage or 12V of direct current voltage.
Also, both the above 1st battery(lO) and 2nd battery(20) are integrated into one housing and the above control member(90) can control to drive a main motor(30) aforementioned with energy of the above supplementary battery(15) when charging the integrated batteries with the energy supplied from the above generator(60).
An environment-friendly power generation system involved self-recharging according to this embodiment hereunder(200) configured as above is operated as follows:
First, electrical energy is output from the above 1st battery(lO). And then, the above control member(90) controls to drive the above main motor(30) with the electrical energy generated at the 1st battery(lO).
If the above main motor(30) is driven, the hydraulic pump(40) connected with the main motor(30) is operated and pressure energy is supplied to the hydraulic fluid(tramp oil).
Next, the pressure energy generated at a hydraulic pump(40) drives a hydraulic motor(50) and then is converted into mechanical energy.
In succession, the energy generated at a hydraulic motor(50) is transferred to a generator(60).
If the energy generated at a main motor(30) passes through a hydraulic pump(40) and a hydraulic motor(50), the caloric value generated at a main motor(30) becomes smaller and the power transferred from the main motor(30) in proportion to a compression ratio between a hydraulic pump(40) and a hydraulic motor(50) becomes amplified and output via a hydraulic motor(50).
Therefore, the existence of the above hydraulic pump(40) and the hydraulic motor(50) is the best feature of this invention, a main motor(50) can be used for a long time by lowering the caloric value of the main motor(30). Accordingly it can sharply downsize the sizes of machines and equipment due to the fact that high power output can be acquired through the hydraulic motor(50) even using a main motor(30) of small power because it is able to amplify.
In succession, the above generator(60) generates electrical energy and transfers it to an inverter(70).
The above inverter(70) converts the energy supplied from the above generator(60).
Meanwhile, a control member(90) constantly measures the voltage of the 1st battery(lO) and the 2nd battery(20) and controls to charge the 1st battery(lO) by transferring the energy converted at the above inverter(70) to the 1st battery(lO) if the voltage of the 1st battery(lO) drops below a certain set (voltage) value - for example, 15 V.
Also, the control member(90) controls the energy of the 2nd battery(20) to be transferred to a main motor(30) during charging the 1st battery(lO).
The energy generated at the above main motor(30) is transferred to the above hydraulic pump(40) as explained above.
In addition to above, the control member(90) controls the energy supplied to be transferred from an inverter(70) to the 2nd battery(20) in order to charge the 2nd battery(20) if the voltage of the 2nd battery(20) drops below a certain set (voltage) value - 15V.
The control member(90) controls the energy of the 1st battery(lOO) to be transferred to a main motor(30) during charging the 2nd battery(20), too.
While, the control member(90) controls a main motor(30) to be driven using the energy of a supplementary battery(15) if there is no enough time to charge the 1st battery(lO) and the 2nd battery(20).
As explained above, a main motor(30) is driven by continuously charging the 1st battery(lO) and the 2nd battery(20) by turns. Accordingly, it can generate power for a long time with only once energy supply and reduce energy consumption.
Furthermore, this system is an eco-friendly technology protecting environment by blocking a substance causing environmental pollution in advance due to the fact that this embodiment never use fossil energy that is a fluid fuel such as gasoline, diesel, kerosene and so on obtained by processing crude oil.
As aforementioned in this embodiment, a hydraulic variable tube(45) is installed between a hydraulic pump(40) and a hydraulic motor(50). Accordingly, it can prevent damage on a hydraulic pump(40) and a hydraulic motor(50) by absorbing expansion of hydraulic fluid due to the fact that its volume is simultaneously expanded when the hydraulic fluid of a hydraulic pump(40) and a hydraulic motor(50) is expanded by a high temperature.
Therefore, a failure in an environment-friendly power generation system involved self-recharging (100) according to this embodiment is extremely suppressed in spite of its use for hours.
As explained before, meanwhile, an inverter(70) can come in useful according to its service condition by installing additional output port therein and making it be output as one of 220V of alternating voltage or 12V of direct current voltage.
Simultaneously such output explained above, either the 1st battery(lO) or the 2nd battery(20) can be recharged.
[Description of Codes] 10. The 1st Battery 15. Supplementary Battery 20. The 2nd Battery 30. Main Motor 40. Hydraulic Pump 45. Hydraulic Variable Tube 50. Hydraulic Motor 60. Generator 70. Inverter 80. Rotation Axis 90. Control Member

Claims (6)

  1. CLAIMS [Claim 1] The 1st battery that supplies electrical energy(lO); The 2nd battery that supplies electrical energy(20); A main motor(30) that is driven by voltage delivered from the 1st battery(lO); A hydraulic pump(40) that is connected with a main motor(30) and converts mechanical energy supplied into pressure energy of hydraulic fluid; A hydraulic motor(50) that converts pressure energy of hydraulic fluid into mechanical energy using the hydraulic fluid with pressure energy supplied from a hydraulic pump(40); A generator(60) that is connected with a hydraulic motor(50); An inverter(70) that is connected with a generator(60); A rotation axis(80) that is connected with a hydraulic motor(50) and transfers the energy generated at a hydraulic motor(50) to the outside; An environment-friendly power generation system involved self-recharging that features a control member(90) controlling i) to drive a main motor(30) with the energy supplied from the 1st battery( 10); ii) to charge the 1st battery! 10) with the electrical energy supplied from an inverter(70) if the voltage of the 1st battery(lO) drops less a certain set value; iii) to drive a main motor(30) with the energy supplied from the 2nd battery(20) during charging the 1st battery(lO); iv) to charge the 2nd battery(20) with the electrical energy supplied from an inverter(70) if the voltage of the 2nd battery(20) drops less a certain set value; and v) to drive a main motor(30) with the energy supplied from the 1st battery(lO) during charging the 2nd battery(20). [Claim
  2. 2] Where [Claim 1] above, An environment-friendly power generation system involved self-recharging that features a supplementary battery(15) that has electrical energy and a control member(90) that controls to drive a main motor(30) using the energy of the above supplementary battery(15) when there is no time to charge the 1st battery(lO) or the 2nd battery(20). [Claim
  3. 3] Where [Claim 1] above, An environment-friendly power generation system involved self-recharging that features a hydraulic variable tube(45) that is located between a hydraulic pump(40) and a hydraulic motor(50), has a variable volume, and prevents damage on a hydraulic pump(40) and a hydraulic motor(50) by absorbing expansion of hydraulic fluid due to the fact that its volume is simultaneously expanded when the hydraulic fluid of the above hydraulic pump(40) and hydraulic motor(50) is expanded by a high temperature. [Claim
  4. 4] Where [Claim 1] above, An environment-friendly power generation system involved self-recharging that features that both the above hydraulic pump(40) and the hydraulic motor(50) are embedded in one housing. [Claim
  5. 5] Where [Claim 1] above, An environment-friendly power generation system involved self-recharging that features to output electrical energy supplied at a generator(60) as one of 220V of alternating voltage or 12V of direct current voltage from an inverter(70). [Claim
  6. 6] Where [Claim 2] above, An environment-friendly power generation system involved self-recharging that features that both the 1st battery(lO) and the 2nd battery(20) are integrated into one housing and a control member controls to drive a main motor(30) with the energy of a supplementary battery(15) during charging the above integrated battery with the energy supplied at the above generator(60).
AU2016219579A 2016-04-29 2016-08-23 Power generation system Abandoned AU2016219579A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0052783 2016-04-29
KR20160052783 2016-04-29

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AU2016219579A1 true AU2016219579A1 (en) 2017-11-16

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AU2016219579A Abandoned AU2016219579A1 (en) 2016-04-29 2016-08-23 Power generation system

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AU (1) AU2016219579A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2606265A (en) * 2021-03-16 2022-11-02 Ecofile Ltd Electric motor assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2606265A (en) * 2021-03-16 2022-11-02 Ecofile Ltd Electric motor assembly
GB2606265B (en) * 2021-03-16 2023-10-11 Ecofile Ltd Electric motor assembly

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Publication number Publication date
KR20170124058A (en) 2017-11-09
KR20170124066A (en) 2017-11-09

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