Kamtech RE?

What is a Kamtech RE, and how is it better? 

  • Kamtech Range Extender is a small self-contained electric power plant.  It can meet the US and European regulations regarding CO2/km for the next 10 years.  It can produce a kWh of electricity with less CO2 than the world's electric grid and unlike the world's electric grid it does not emit toxic or poisonous gasses, only CO2 and water.  At its heart is the super-efficient Rad Cam engine (40% thermal efficiency). It only generates electric power, which feeds into the EV's electric system.  
  • It replaces up to 80% of the EVs batteries.  This allows your EVs to be far more efficient, to stop faster, and to handle better.  The Rad Cam is a small energy-dense internal combustion engine.  It was developed to give clean, highly efficient power, and its perfect balance makes it run as smoothly as your EV's electric motors.  Its first licensee was a small aircraft company.  Aircraft engines normally operate at around 80% power capacity so they have to be robust and efficient.  

    Kamtech RE will let all the good aspects of your EV shine while eliminating all the bad habits EVs are famous for.  First to go are range anxiety and charging time trauma.    Your range-extended EV can be refueled at any petrol station.  It can now travel up to 50 km on a liter of fuel and refueling happens in minutes not hours.  Our Rad Cam engine can also operate on biofuels which will make your EVs truly "zero-emission" vehicles. 

Kamtech's 20 kW, 50 kg RE will silently operate but only when there is a need to recharge the vehicle’s battery or power the air conditioning.  It can use its waste heat to warm the EV's interior without limiting its range.  Unlike the large off-the-shelf hybrid engines, Kamtech’s RE only operates at its most thermally efficient speed and load, (over 40%) and at the moment the batteries are charged it shuts off.  

Like most modern cars the Rad Cam engine allows oxidation of HC (unburned hydrocarbons) to CO2 (carbon dioxide) and H2O (water), two organic molecules necessary for life.  Its use will allow your EVs to unplug from  "the most deadly energy produced on Earth."  Unplugging from the grid will not only contribute to cleaner healthier air but will save society from the need and expense of building new charging infrastructure and more generating capacity.  

Reducing the size of your EV's battery also lessens the social and environmental impact of the mining transportation and manufacture of your EV's Battery. According to a much misquoted and maligned study by the Swedish Energy Agency the CO2 emitted in making a typical EV battery pack is >250 kg/kWh or about 25 tonnes for a 100 kWh battery.  Here is a screenshot from page 36 of that study.  The study noted recycling batteries at the end of life may release more CO2. 

Our Rad Cam engine’s longer dwell after at the top of the stroke allows combustion to take place under a higher pressure, in a smaller space.  This permits more of the heat and resulting pressure of combustion to be converted into energy.  Which is why its exhaust temperatures are lower.  The design is based on the principle of more closely matching piston dynamics with combustion dynamics.  A crank-driven piston's short dwell time at the top of the stroke is a major cause of thermal inefficiency.  The Rad Cam uses forced induction, fuel injection, and HCCI.  The Rad Cam also has internal cooling and uses materials that have higher thermal resistance and lower thermal conductivity.  It has several other proprietary features, but the most outstanding is the use of a large cam to move the pistons in a dynamic that greatly increases its thermal efficiency.  

  • The Kamtech EV's generator produces 16 kWe.  
  • The Rad Cam engine displacement is 286 ccm (multi-fuel calibration) 
  • Two Stroke, with isolated lower end, no mixing oil with fuel.
  • Eight-cylinder engine with Forced Induction  
  • SFC_AC: 204g/kWh High Efficiency  
  • Engine Weight: 50kg (without fluids) 
  • Compact Design (45 cm diameter x 45 cm tall) 
  • If service is needed it can be quickly unplugged and removed on a lift for a quick R&R of a serviced unit.  
  • Its low cost allows for leasing to remove the car buyer's fear of reliability.

The Rad Kame engine also has sufficient power to operate an air-conditioning compressor via an output shaft with minimal impact on efficiency. 

Its waste heat can provide interior heat in colder weather.