asteroza + ice   83

Novel PPPL invention could improve the efficiency of car and truck engines while reducing pollutants
Using a near supersonic gas flow in the cylinder to increase heat absorption. In theory, this might let you get away with running the engine cooler, which would eliminate the need for NOx reductions in your catalytic converter. See US patent US10450943B2
supersonic  rotating  gas  ICE  engine  cylinder  efficiency  heat  absorption  power  cycle  8-stroke 
19 days ago by asteroza
Food Grade Dry Ice
Food grade dry ice exists, which means non-food grade...
dry  ice  CO2 
10 weeks ago by asteroza
Shop our body cooling vests | Ezcooldown
body cooling vests, that are popular with furries, who have a real need for this sort of thing, and this brand is particular popular because it doesn't suck (as verified by military furries)
furries  body  cooling  vest  ice 
august 2019 by asteroza
Coming Soon
Uses a closed loop ICE of sorts, using input hydrogen/methane and oxygen along with working fluid argon. Burn in a piston, condense out the water, membrane filter the CO2, and recycle the argon back to the cylinder.
argon  power  cycle  alternative  working  fluid  closed  loop  recycling  ICE  engine  generator  hydrogen  methane  oxygen  oxyfuel 
october 2018 by asteroza
RK Transportation | Technology. Driven.
A not entirely insane idea of using a very small electric motor as a replacement for crankshaft flywheels in piston engines. The idea being instead of using rotor inertia in a conventional flywheel for smoothing, use a small electric motor that bursts torque when the piston is at top or bottom dead center to smooth out the output torque. This is not a full (parallel?) hybrid implementation, more like some might call a mild hybrid.
ICE  engine  crankshaft  flywheel  torque  smoothng  electric  motor  rotor  hybrid  automotive  technology  research 
june 2018 by asteroza
Artificial Glaciers of Ladakh | The Ice Stupa Project
Forcibly making more ice/glacier in winter from winter stream water to save for planting season.
artifical  glacier  ice  water  storage  agriculture 
june 2017 by asteroza
Beyond Zero | We Make Ice Cool!
Alcohol freezing machine for stunt drinks. $5k though...
subzero  frozen  alcohol  liquor  machine  bar  kitchen  drink  appliance  ice  Delicious 
june 2017 by asteroza
Libertine FPE
Seems to use very thin piston rods as a design, I guess to increase surface area of the generator portion?
FPEG  free  piston  linear  alternator  engine  generator  ICE  range  extender  Delicious 
october 2016 by asteroza
Aquarius Engines - Energy Generation
Appears to be a linear free piston ICE engine, probably for range extender work. Uses a piston rod linkage to connect the free piston to external rods that mount the generator stator coils, so the generator portion isn't in the hot cylinder/piston (though that means a a sliding seal for the piston rod to exit the head)
FPEG  linear  free  piston  alternator  generator  engine  ICE  range  extender  Delicious 
october 2016 by asteroza
Interesting compact aviation diesel engines. Poentially usable for UAV's. Would be interested in seeing this as a UAV genset for series hybrid electric UAV designs.
aviation  diesel  engine  ICE  research  technology  compact  small  form  factor  UAV  drone  Delicious 
april 2016 by asteroza
Moment Cancelling Engine | Dan Gurney's All American Racers
Interesting tandem twin motorcycle engine that in theory cancels crankshaft vibration, but while a 4 stroke it sends both pistons down at the same time, so wouldn't there be hammerblow type vertical vibration? The patent covers an intake optimization trick that may be the more applicable innovation.
momentum  vibration  cancelling  tandem  twin  4  stroke  piston  motorcycle  engine  ICE  research  technology  propulsion  transportation  Delicious 
september 2015 by asteroza
How It Works | LiquidPiston
Compact engine with simple parts, and isn't a wankel (more like an inverse wankel) but is a rotary engine at 10Krpm.
rotary  ICE  engine  powerplant  power  generator  research  technology  Delicious 
june 2015 by asteroza
Princeton Optronics, Inc. Laser Diodes, High Power VCSELs, VCSEL Arrays, Diode Lasers
Working on laser ignition gasoline car engines. Well, at least a spark plug replacement for super lean ops.
VCSEL  laser  igniton  ICE  combustion  engine  igniter  research  hardware  electronics  devices  Delicious 
february 2015 by asteroza
A modified Cubewano UAV engine is the heart of the SilentHawk's series hybrid electric setup.
SilentHawk  hybrid  wankel  rotary  multifuel  engine  ICE  electric  generator  APU  range  extender  genset  Delicious 
january 2015 by asteroza
Clarion Labs rotary piston generator
See US patent application 20110133486 for the integrated generator in the wankel rotor. They claim to use the integrated generator to fiddle with piston rotation timing to improve efficiency (loiter at top dead center?), no permanent magnets due to an inductive layout,and ceramic apex seals.
compact  small  form  factor  integrated  electric  generator  wankel  rotary  engine  ICE  battery  hybrid  portable  multifuel  range  extender  APU  genset  Delicious 
january 2015 by asteroza
Clarian Labs - Making Ideas Possible
These guys were allegedly working on a compact single rotor wankel generator to be used in a hybrid battery pack. I wonder if this could be used in the Logos Technologies stealth bike SilentHawk?
compact  small  form  factor  single  rotor  wankel  ICE  generator  energy  storage  hybrid  battery  Delicious 
january 2015 by asteroza
Alta Motors - The Future of Fast. San Francisco, CA
Formerly BRD, working with Logos Technologies for SilentHawk series hybrid electric motorcycle for SpecOps using a modified Cubewano multifuel rotary engine genset APU.
military  hybrid  electric  series  rotary  engine  ICE  motorcycle  vehicle  transportation  Delicious 
january 2015 by asteroza
Hybrid-Electric Military Motorcycle - Logos New Website
If they make a good multifuel series hybrid, I can imagine a lot of civilians who would be interested. BRD is making the base electric motorcycle chassis, but the multifuel rotary series hybrid generator engine maker is Cubewano (based off an UAV engine they made for a military secret UAV project). The SilentHawk being a two wheel drive motorcycle is interesting as well, but that suggests the possibility that a boost electric hub motor in the front, with a conventional ICE mechanical drivetrain with integrated generator for the back would possibly work as well. But the description was series hybrid so both wheels would be electric.
SilentHawk  hybrid  series  electric  stealth  motorcycle  silent  rotary  engine  SpecOps  military  vehicle  transportation  multifuel  ICE  AWD  2WD  two  wheel  drive  Delicious 
january 2015 by asteroza
Not a wankel, but is a rotary engine. Interesting movement, seems easier to lube. Reminds me a little of a quasiturbine. Considering the airflow issue though, I'm not clear how you have a multiple rotor system.
LiquidPiston  small  compact  form  factor  rotary  engine  ICE  research  technology  energy  Delicious 
november 2014 by asteroza
Some sort of weird conrod scotish yoke setup I think, opposed piston but not opposed cylinder? Won't that shake itself to death?
japan  ICE  combustion  engine  powerplant  hardware  Delicious 
october 2014 by asteroza
Russian Icebreakers With Frickin' Laser Beams - gCaptain Maritime & Offshore News
Okay, using a laser to score ice fields to make it easier to break through by introducing a fault is not insane, in the context that there were serious proposals to use excess reactor heat to run steam jets from an icebreaker's bow to assist icebreaking. But, this smells like a military naval laser program in civil clothing...
russia  icebreaker  arctic  ice  breaking  operation  marine  maritime  engineering  research  technology  laser  cutter  Delicious 
august 2014 by asteroza
マツダ、ロータリーエンジンによるレンジエクステンダーEVを公開 - 【自動車業界ニュース】 - carview! - 自動車
Appears to be a single rotor wankel generator on it's side, so it is a low flat pack. AVL was doing something similar previously. I wonder how they handle the vibration of a single rotor?
mazda  range  extender  HEV  APU  ICE  wankel  rotary  engine  single  piston  Delicious 
december 2013 by asteroza
DLR Portal - News - DLR researchers unveil a new kind of range extender for electric cars
Using a gas piston to keep the linear generator rod from smashing through the cylinder end works, but it seems more like they are using the linear generator as a braking motion limiter (reverse generator to motor mode) to keep from overwhelming the gas piston.
gas  linear  free  hardware  engine  piston  power  generator  ICE  germany  research  Delicious 
june 2013 by asteroza
Cox Powertrain and Ricardo announce MoD development contract for advanced engine concept - Ricardo
Interesting work developing a diesel outboard engine, based on something similar to a 2 stroke OPOC, catering to many large navies moving to single fuel (diesel) operations.
marine  hardware  technology  engine  outboard  ICE  research  supercharger  OPOC  propulsion  2  stroke  diesel  motor  piston  opposed  Delicious 
february 2013 by asteroza
Wave Engine Solutions - AngelList
Some pictures to show how it works. Uses a linear conrod motion to drive a roller bearing, which forces a barrel with a wave cutout to generate rotary motion. Kinda interesting, but the wear life of the conrod T-bar is going to be key.
barrel  wave  rotary  motion  converter  conrod  crankshaft  replacement  alternative  ice  mechanism  automotive  technology  engine  design  research  Delicious 
june 2012 by asteroza
Wave Engine Solutions
Some sort of tricky linear to rotary motion converter to replace traditional crankshafts/conrods with a "wave barrel"
wave  rotary  motion  converter  conrod  crankshaft  replacement  alternative  ICE  mechanism  motion  automotive  technology  engine  design  research  Delicious 
june 2012 by asteroza
Mongolia bids to keep city cool with 'ice shield' experiment | Environment |
Being an artificial iceberg, this will naturally screw up the local river hydrology due to the melt temperature, but if you aren't normally expecting to fish from the river, and it doesn't need to be navigable, this seems like a viable alternative to other winter thermal storage techniques.
mongolia  geoengineering  experiment  winter  thermal  store  storage  ice  artificial  iceberg  glacier  Delicious 
november 2011 by asteroza
Engine Technology, Vehicle, Marine, Light Aircraft, Multi Fuel
If you avoid rotating the cylinder/piston path and only rotate the nutator (using a sine wave swashplate and cam rollers on the rods), you could potentially do an opposed piston layout and have the opposite piston drive a lock synced counter-rotating shaft to reduce vibration.
ICE  5  cylinder  nutation  nutating  swashplate  axial  reciprocating  motor  engine  alternative  Delicious 
october 2011 by asteroza
How Audi Hybrids Could Keep the Wankel Rotary Alive - Feature - Car and Driver
Wankels may have died at Mazda, but might possibly come back at Audi for generators in range extender options for EV's?
Audi  A1  E-Tron  series  hybrid  EV  electric  vehicle  automotive  technology  green  transportation  research  single  rotor  wankel  rotary  ICE  engine  alternator  power  generator  Delicious 
september 2011 by asteroza
AMW - One Stroke for mankind
This is a pretty strange engine design. The problem point will probably be sealing between the blade "piston", the crankshaft disc slots holding the blade, and the duct walls. Which might be mitigated by keeping the ducts at most a half cylinder in depth where the blade dips out most from the crankshaft disc.
ducted  blade  rotary  engine  motor  positive  displacement  pump  ICE  Delicious 
august 2011 by asteroza
Revetec Homepage
Interesting technique of using a solid double ended piston to drive counterrotating cams to get rotational power, the cam path itself is an interesting way of smoothing out the top/bottom dead center of the piston stroke too. I wnder if it's strictly necessary to have counterrotating trilobe cams though (are pairs even required)?
Revetec  piston  slide  CAM  camshaft  engine  trilobe  trilobate  motor  ICE  Australia  automotive  technology  green  transportation  Delicious 
august 2011 by asteroza
ABI - 株式会社アビー
apparently they have a magnet system that directly stimulates water in cells to prevent ice crystal formation when supercooling, which is then suddenly turned off to create a flash freezing effect that reduces damage to food/tissue/meat from the freezing process.
japan  ICE  crystal  free  magnetic  Water  molecule  stimulation  flash  freezing  technology  food  tissue  meat  cell  preservation  CAS  magnet  formation  suppression  colling  Delicious 
january 2011 by asteroza
Lotus Range Extender Engine headed for market
I can understand the desire to reuse known technology, but wouldn't a microturbine be a better choice? I know someone was working on a wankel range extender as well, but wankels chew through rotor lube oil.
Lotus  PHEV  EV  range  extender  ICE  engine  motor  generator  3  three  cylinder  car  automotive  vehicle  technology  transportation  Delicious 
june 2010 by asteroza
GM Planning Rotary Power Plant for 2nd Generation Chevy Volt….Did we Miss the 1st Generation?
Interesting report of GM looking at a high density powerplant option for the followon Volt vehicle. A wankel rotary is interesting, but the main expertise for that is Mazda, so there would need to be a tech agreement. I am a little surprised by the drivetrain cost issue with a microdiesel. Small diesel generators for boats don't seem to have such a cost issue, and this is a series hybrid vehicle so it should be a drop in replacement. I'm also surprised there isn't a return to a microturbine. GM has some turbine history, and Capstone is a small enough company to buy outright. Capstone, or WilliamsJet, have great tech for single piece milled turbines.
GM  volt  EV  PHEV  ICE  engine  powerplant  motor  rotary  wankel  green  transportation  vehicle  Delicious 
june 2010 by asteroza
Green Car Congress: Ecomotors Says Its OPOC Engine Could Deliver About 45% Greater Fuel Efficiency in a Class 8 Truck And With Tier 2 Bin 5 Emissions
The supercharger/turbocharger electric hybrid is interesting. Use the intermediary motor to supplement boost during turbo lag and make up. I wonder if you could do the opposite, run the turbocharger as a generator when there is excess input exhaust gas power into the turbocharger, to prevent overpressure and opening of the wastegate (with corresponding losses in efficiency)?
OPOC  engine  EcoMotors  ICE  opposed  cylinder  piston  concept  design  transportation  electric  assist  assisted  turbocharger  supercharger  Delicious 
march 2010 by asteroza
Libralato Engines Technology Overview
A rotary engine design, taking some cues from the wankel. Uses a variable rotor shape to change volume.
Liberalato  ICE  engine  alternative  rotary  piston  concept  design  variable  rotor  Delicious 
march 2010 by asteroza
Ecomotors Opposed-Piston Opposed-Cylinder Engine Could make Class 8 Trucks 45% More Fuel Efficient
Interesting opposed piston engine concept. Each opposed piston cylinder set/module consists of pairs of inner and outer pistons. By putting the inlet and exhaust ports at opposite ends of the cylinder, you get better fuel burn, and potentially easier valve systems. Opposed setups get some nice balance going, and because it is "flat" engine you could potentially put it under the floor/bed of a vehicle rather than in the front, for better weight balance (provided you are using all wheel electric drive, which is not unreasonable since this engine concept uses an electric turbo/supercharger so you will in principle need a large generator/alternator attached to the driveshaft anyways). I wonder what would stop you from using a concept like this for a diesel cycle, since it is functionally a two stroke based cycle?
OPOC  opposed  cylinder  piston  engine  design  concept  hybrid  2  4  stroke  valveless  high  efficiency  electric  supercharger  turbocharger  ICE  green  transportation  Delicious 
march 2010 by asteroza
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