asteroza + cylinder   21

Heindl Energy - Gravity Storage
Another one of those engineered natural rock piston type hydraulic energy storage concept. Always figured the accurate cutting/fitting of the cylinder wall and piston sleeve would be a pain.
rock  cylinder  piston  hydraulic  energy  storage  pumped  hydro  hydroelectric  power  generator  Delicious 
june 2017 by asteroza
Technische Universität Wien : Mehr Platz für die Sonne
Called Heliofloat, it sounds like a variation of a classical PSP platform, using semi-flexible barrel/cylinder side walls to absorb some wave motion. Using a marine concrete PSP sounds more durable, though at greater weight/cost?
ocean  marine  structure  floating  solar  PV  panel  mount  heliofloat  flexible  barrel  cylinder  side  all  PSP  Delicious 
may 2016 by asteroza
So the idea here is, if the lock isn't internet connected, then someone copying the physical key fails because they don't have the chip in the original key.
Abloy  electromechanical  mechanical  lock  cylinder  key  hardware  electronics  devices  security  Delicious 
july 2014 by asteroza
Hydraulic Hydro Storage: The Optimal Energy Storage System
Interesting take on pumped hydro, using a giant solid stone piston for the compression mass, cut using an upper and lower ring tunnel connected by a wire saw. So basically an excavate in place scheme for a high mass, rather than say Gravity Power, which uses a vertical TBM and an artificial (concrete?) piston. Still uses water as the working fluid, no indication if this is closed loop. Some of the drawings even show the piston cut from the ground surface, which means as you store energy, this giant cylinder rock mass rises from the ground like a mountain...
pumped  wire  monolithic  green  cylinder  stone  hydro  mass  piston  power  generator  hydroelectric  saw  compression  energy  gravity  storage  Delicious 
july 2013 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
Pinnacle Engines
Apparently this is different from that other major OPOC engine.
Pinnacle  engines  OPOC  opposed  piston  cylinder  engine  high  efficiency  green  Cleeves  Otto  diesel  cycle  motor  automotive  technology  Delicious 
april 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
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
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
Wind Turbine, Wind Energy, Wind Power, Save Energy – Optiwind
Company trying to do intermediate level wind turbines (AKA more than a home, maybe a neighborhood, maybe a community, probably less than a town). Uses a cylinder shape to achieve a venturi effect to locally accelerate the wind.
wind  turbine  power  generator  cylinder  venturi  airflow  accelerator  green  energy  community  neighborhood  Optiwind  Delicious 
june 2009 by asteroza
RCV Engines Ltd Home Page
so the cylinder sleeve rotates to achieve a rotating valve effect
high  efficiency  internal  combustion  reciprocating  engine  technology  rotating  cylinder  valve  Delicious 
january 2007 by asteroza

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