asteroza + stroke   12

Hybrix.20 – Quaternium
Electric quadrotor with a two stroke petrol engine/generator as a range extender.
UAV  drone  quadcopter  multicopter  two  stroke  gasoline  range  extender  power  generator  hardware  electronics  devices 
december 2017 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
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
nihilistorguk
Interesting japanese kanji font that also shows stroke orders inline.
japanese  kanji  character  stroke  order  visualization  truetype  font  software  learning  education  language  Delicious 
may 2012 by asteroza
SkySails GmbH - SkySails Power System
Interesting. A pull/retrieve power stroke based, figure 8 racetrack pattern autonomous flight pull stroke, offshore floating buoy based parafoil wing kite power generator system. System will need a rather large energy accumulator/battery/flywheel/capacitor to even out the energy output from an array of these though. Could do that at the array level, or at the individual buoys. Buoy based does not favor all electric flywheels (maybe CVT clutch coupled mechanical flywheels), clutched air compressor based systems would also work, capacitors probably would be undesirable though. That water pump spherical anchor may be favorable if using a TLP platform style pipe tendon for moorings
skysails  offshore  high  altitude  airborne  kite  parafoil  parasail  wind  power  generator  green  energy  germany  europe  EU  stroke  tether  pull  retrieve  cycle  Delicious 
september 2011 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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