Posts

Showing posts with the label motors

Increasing electric motor efficiency by using metallic glasses (amorphous metals) instead of traditional crystalline iron alloys

https://www.eurekalert.org/news-releases/1119411 "electric motors lose energy due to friction when flipping magnetic orientation... overcome using metallic glasses lacking crystal lattice with freely reorienting magnetic domains drastically reducing heat generation/ energy waste...  extends battery range, cooler-running motors, eliminates need for critical elements like cobalt... three 70–80% iron alloys highly resistant to crystallization identified, compatible with laser powder bed fusion 3D printing... e-bikes, drones, electric scooters" Related: AI tracks motor heat in real time enabling more efficient electric drives without extra sensors https://www.eurekalert.org/news-releases/1124046

Electrostatic motors feature efficiency, high power-to-weight ratio, and no need for magnets or maintenance-heavy gearboxes

https://techxplore.com/news/2026-02-overlooked-electrostatic-motor-future.html "apply voltage to metal tracks attached to printed circuit board creating interaction between rotor/ stator generating motion (instead of copper coils/ magnets creating motion through magnetic fields)... uses >90% less copper, up to 80% lighter), lower cost... significantly lower current so generates almost no heat/ requires no active cooling, direct drive capable/ high torque at low speeds... dielectric fluids boost field strength)... EVs (extend range up to 25%), solar drones, electric aviation, large-scale industrial pumps"

Compact liquid metal droplet rotary paddle motor replaces rigid magnet, coil, gear, shaft components with fluid dynamics

https://techxplore.com/news/2026-01-liquid-metal-powers-kind-motor.html "similar to miniature waterwheel but uses electricity/ liquid metal instead of mechanical force... submerge liquid metal droplet in salt solution, apply electric field triggering swirling internal flows within droplet, place small copper paddle inside flows pushing paddle up to 320 RPM... motor inherently soft/ adaptable... liquid metal actuator fast/ efficient... less mechanical complexity: easier integration into small-scale tech... delicate or confined environments: soft robotics, biomedical devices, flexible electronics, wearables"

EV motor: Record 1,000 hp/ wheel peak power-density; in-wheel powertrain cuts up to 1,102 pounds from EVs by removing rear brakes/ driveshafts

https://interestingengineering.com/innovation/ev-motor-packs-1000-hp-per-wheel "28-pounds, 59 kW/ kg power density, paired with highly efficient 33-pound dual inverter, EV conversions still save about 441 pounds... advanced regenerative braking captures/ reuses energy, potentially eliminating the need for rear disc brakes and driveshafts... light enough to be fitted inside the wheel while remaining mass-neutral, meaning it does not add net weight to the vehicle... performance, efficiency, weight reduction, scalable for various high-performance EVs" Related: Stainless steel brake disks significantly reduce fine particulate emissions; exceptional durability https://techxplore.com/news/2026-04-stainless-steel-disks-significantly-fine.html

Harnessing the transverse electrostatic force (TEF) to create a new type of lightweight, magnet-free motor

https://www.eurekalert.org/news-releases/1107373 "converts electrical energy into mechanical motion using ferroelectric fluids... amplifies TEF, which acts perpendicularly to applied electric field,,, ferroelectric nematic liquid crystal mixture combines free-flowing liquid attribute with spontaneous polarization (ability to retain internal electric dipole)... dielectric constant generating stress exceeding 1,000 N/m², achieved at few tens of V (was 10 kV)... future: motor made entirely of plastic, eliminating need for magnets/ rare-earths... compact, energy-efficient actuators/ motors"

Novel motor topology and modulation strategy enhances efficiency and precision in high-power motor drives

https://www.eurekalert.org/news-releases/1102574 "4-level modulation strategy for dual 3-phase open-winding permanent magnet synchronous motor drive, using 2:1:1 DC-link voltage ratio across 3 DC sources to achieve 4-level effect... average current Total Harmonic Distortion reduced >29%, use of Unified Duty Ratio Compensation enabled 50% further reduction during voltage deviations... switching frequencies significantly reduced... EV propulsion, aerospace actuators, industrial automation" Related: Energy-efficient predictive control strategy boosts performance of electric vehicle drives https://www.eurekalert.org/news-releases/1102558

Revolutionizing EV performance: a breakthrough in simultaneous efficiency enhancement and vibration reduction

https://www.eurekalert.org/news-releases/1096067 "overcomes trade-off between driving efficiency (more miles per charge) and reducing torque ripple (minimizing vibrations that are uncomfortable/ reduce vehicle's lifespan)... Teamwork Optimization Algorithm adjusts at millisecond speed with minimal computational overhead motor's magnetic flux for optimal performance under any driving conditions... energy consumption reduced up to 15%, torque ripple decreased 40%, total harmonic distortion decreased 35%"

Using CNTs to develop lightweight electric motors without copper coils

https://www.eurekalert.org/news-releases/1086431 "RPM stably controlled according to input voltage... catalyst metal residue from manufacturing process degrade CNT electrical properties, overcome using CNT purification utilizing fourth state of matter liquid crystal alignment principle naturally resolving strong aggregation, removing metallic particles without damaging CNT's nanostructure... purification significantly improves conductivity... also applicable to conductive materials for batteries, pellicles for semiconductors, cables for robots"

Enhanced magnetic properties of iridium-doped iron-cobalt alloy for highly efficient motors and cost-effective high-density data storage

https://www.eurekalert.org/news-releases/1076863 "high magnetic field strength/ orientation... compositionally graded single-crystal Fe-Co-Ir thin films... Fe magnetic moment increased 1.44-fold and Ir 1.54-fold at 11 at% Ir concentration compared to that at 1 at% Ir concentration... Ir addition increases electron localization/ stronger spin-orbit coupling between 3d electrons of Fe, Co, 5d electrons of Ir, highlighting Ir critical role" Related:  Orbis Electric's HaloDrive motor improves fleet fuel efficiency 61%, fits within vehicle wheels reducing vehicle weight/ improving range by 20% https://www.electrichybridvehicletechnology.com/news/orbis-electric-targets-commercial-vehicle-market-with-new-halodrive-motor-system.html

Quantum entanglement, instead of oil or coal, powers a new kind of engine

https://www.earth.com/news/quantum-entanglement-instead-of-oil-or-coal-powers-a-new-kind-of-engine/ "at very low temperatures bosons settle into lower energy states than fermions do... changing bosons into fermions and back creates work, cycling powers engine without using heat (quantum needs coolness), using energy difference... up to 25% efficient... tiny batteries, precise sensors" Related: Entanglement-powered quantum engine https://www.paris2018.com/news/quantum-engine-that-runs-neither-gas-hydrogen-signals-new-dawn-humanity/

Eco-friendly, compact, efficient and cost-effective rare earth free motor

https://engineering.tamu.edu/news/2024/11/sustainable-cost-effective-electric-motors-cut-rare-earth-materials.html "replacing on motor's rotating part with copper coils... power to weight ratio on par with motors using rare earths... they have patents and U.S. patent applications for this idea. One of the main industries affected would be the automobile industry... can also be expanded for wind turbines, renewable energies and transportation systems too" Related: First ultra-compact engine unveiled: Experts say it is “the end of hydrogen” https://www.ecoticias.com/en/first-ultra-compact-engine-unveiled/9238/ Simple Energy pioneers rare earth-free motors, eyes comeback in EV race https://economictimes.indiatimes.com/industry/renewables/simple-energy-pioneers-rare-earth-free-motors-eyes-comeback-in-ev-race/articleshow/123914594.cms?from=mdr

Researchers enhance efficiency of small electric drives for pumps and fans

https://techxplore.com/news/2024-09-efficiency-small-electric-fans.html "brushless integrated drives consuming less energy, quieter, lighter,  improved magnetic flux, 50% fewer capacitors... reduced cogging torques of claw pole motor drive by skewing/ slotting claws, with no added cost, minimizing claws' momentary engagement when motor turned, reducing vibrations 70%... aimplified control reduces switching losses, simplified current flow regulation... only switch drives on/ off once per desired rectangle... 3D printed circuit board windings generating ferrite core magnetic field"

Synthetic mini-motor: Researchers convert chemical energy into rotational energy at the supramolecular level

https://phys.org/news/2024-09-synthetic-mini-motor-chemical-energy.html "peptide ribbons few μm long, few nm wide... with addition of fuel ribbons curl up into small tubes, causing them to begin to rotate. ... fuel amount added controls rotation speed, rotation direction influenced by ribbons' molecular building block structure... can move micrometer-sized objects... micro-walkers: several rotating ribbons brought together at central point can crawl along surfaces... future: swim through blood vessels detecting tumor cells, transporting drugs (after harmless fuel developed)"

Study explores high-performance copper/graphene composite conductor for motors

https://phys.org/news/2024-06-explores-high-coppergraphene-composite-conductor.html "scalable copper/graphene/plastic... high strength, electrical conductivity at room and elevated (>100°C) temperature... improved interfaces prepared by vacuum hot press sintering, cold-drawing, heat-treatment... wires' temperature resistance coefficient drastically reduced to 0.0035/°C, enabling low resistivity at higher temperatures... in-situ growth avoids carbon nanomaterial agglomeration, rare-earth oxide or carbide formation at interface, improving interfacial bonding... high power density EV motor winding wires" Related: Magnet-free electric motor for more sustainable, affordable, and environmentally friendly EVs https://www.facebook.com/EngineeringAndScienceByGenmice/posts/at-just-17-years-old-robert-sansone-a-high-school-student-from-florida-invented-/956473616697199/ Innovative aluminium-calcium composite promises breakthrough in power transmission https://www.alcircle.com/new...

Cummins' historic 15-liter hydrogen engine: 290 hp and the end of electrics and diesels

https://www.ecoticias.com/en/15-liter-hydrogen-engine/1551/ "heavy duty engines: trucks, generators... high-pressure hydrogen tanks, PEM fuel cells, emits no emissions, up to 1150 lb-ft torque, 15 minute refueling... on par with its diesel counterparts... hydrogen fuel cell system at 1,500 lbs. weighs less than 10,000 lb. diesel engine with aftertreatment system" Related: Hyosung’s Breakthrough with Hydrogen Engine Power Generator https://energynews.biz/hyosungs-breakthrough-with-hydrogen-engine-power-generator/ Hydrogen Power Generator https://www.sqhydrogen.com/hydrogen-generator/hydrogen-power-generator.html PowerUP unveils a new kind of energy system, with fuel cells and super batteries https://investinestonia.com/powerup-unveils-a-new-kind-of-energy-system-with-fuel-cells-and-super-batteries/ America and China are wasting their time with EVs: Rolls-Royce has unveiled a revolutionary engine https://www.eldiario24.com/en/rolls-royce-mtu-hydrogen-engines/2762/ This Korean C...

Combustion vortex induction chamber achieves zero-emission ammonia-fueled ICE

https://www.wardsauto.com/industry-news/researchers-claim-breakthrough-ammonia-ice "swirling flow promotes homogenous air/ fuel mix, improved combustion and reduced emissions...air entering through helical port develops into swirling patterns, while air from tangential port initially produces no vortical structure but when redirected by cylinder walls eventually generates swirling structures... best results in early stage of compression stroke when tangential port opening >25%, low variances of turbulent kinetic energy during intake stroke, and low variances of swirl center position during compression stroke" Related: Molecular simulations of ammonia mixtures support search for renewable fuels https://phys.org/news/2024-03-molecular-simulations-ammonia-mixtures-renewable.html

Porsche CEO: Our new hydrogen engine Is the end of EVs

https://www.youtube.com/watch?v=hUKnPckzgOs "rival performance and power of gasoline fueled 4.4 L V8 590 horsepower, top speed 162 mph... increased engine compression ratio, more pressure and temperature improve power and efficiency, also proprietary changes offers 2X air mass to enable same amount energy as gasoline... turbocharger coaxial arrangement of 2 compressor stages both driven by common shaft connected to either turbine or electric motor... minimize harmful nitrogen oxides using common UA based selective catalytic reduction" Related: AVL Racetech’s Engine Redefines Automotive Power https://energynews.biz/avl-racetechs-engine-redefines-automotive-power/ Japan's Toyota shows 'an engine born' with green fuel despite global push for battery electric cars https://techxplore.com/news/2024-05-japan-toyota-born-green-fuel.html Japan introduces the world’s first green fuel engine with insane power: the end of hydrogen and methanol https://www.ecoticias.com/en/jap...

Micro heat engine violates Carnot limit, which sets cap on how much heat can be converted to useful work

https://phys.org/news/2023-11-micro-age-old-thermodynamic-puzzle.html "maximum power at maximum efficiency... overcomes Carnot limit of theoretical efficiency... rapidly changing electric field to cycle the engine between two states. Under these conditions, they found that the waste heat dissipated drastically reduced, bringing the efficiency close to 95% of the limit specified by Carnot... heat distribution time reduced using electric field to move particle in colloidal medium enabling high efficiency and durability with large power output even while operating at high speeds" Related: Researchers propose heat engine that surpasses classical thermodynamic limits https://phys.org/news/2025-08-surpasses-classical-thermodynamic-limits.html

Consortium runs world's first hydrogen-powered gas turbine

https://techxplore.com/news/2023-10-consortium-world-hydrogen-powered-gas-turbine.html "Siemens Energy SGT-400 gas turbine with combustion system adapted for hydrogen, generated electricity... Unlike the gas usually used, hydrogen has a quicker and hotter flame, which meant the developers had to overcome significant security hurdles... These included the resistance capacity of the materials, the cladding of the combustion chamber and the settings for the combustion process... energy-intensive industries like cement, steel, aviation and shipping" elated: New ceramics promise hotter gas turbines that produce more power https://phys.org/news/2024-03-ceramics-hotter-gas-turbines-power.html

Research team develops 2-liter class hydrogen engine capable of running entirely on hydrogen

https://techxplore.com/news/2023-09-team-liter-class-hydrogen-capable.html "irect injection hydrogen engine... pressure >30 bar... turbo charger maintains high thermal efficiency in all domains from ignition to engine load's upper limit allowing stable operation... resolved issue of backfire by injecting high-pressure hydrogen fuel directly into combustion chamber... reduce carbon dioxide and fine dust emissions by 99 and 90% respectively meeting EU's zero-emission requirements... emits nitrogen oxides <15 ppm even without after treatment system purifying exhaust gases... thermal efficiency 40%" Related: The Outlandish 83-Pound One-Stroke Engine That Can Power Cars And Planes https://www.hotcars.com/e-rex-one-stroke-engine/ A Reactivity Controlled Compression Ignition engine can achieve 60 percent thermal efficiency. https://www.roadandtrack.com/new-cars/car-technology/a19909520/gas-diesel-engine-reactivity-controlled-compression-ignition/ [VIDEO] ‘World first’ ...