How to finally realize the 20% to 30% increased fuel economy of Cam-less Engines


Cam-less engines have a long history of proven results in fuel efficiency but have up until now been cost-prohibitive for gasoline or diesel engines with less than 5 liters PER CYLINDER displacement.

Meiselectric, Inc. has in our IP portfolio, US Patent #8,210,139, and another patent pending on novel solenoid cooling and construction, which we believe to be the “final piece in the puzzle” to economic viability for cam-less, free-valve, and infinitely variable valve timing (IVVT) engines.

Highlights of cam-less engines when paired with electronic timing optimization include:

  1. Added 20% to 30% fuel efficiency, because valve timing is decoupled from the fixed periodic movement of a camshaft.
  2. Superior power output performance resulting from software-optimized IVVT.
  3. Reduced exhaust emissions resulting from optimized IVVT.
  4. More versatile torque-to-RPM profile.
  5. Mechanically far less complex due to elimination of the traditional cam system.


  1. Further simplification of the entire valve actuation system, down to 6 LOW-TOLERANCE PARTS, due to using the cylinder head as both the magnetic flux path for the solenoid coils, and as the physical mounting container for the solenoid coils.
  2. Reduced weight, and overall engine size-envelope as a result of using the cylinder head as the magnetic flux path for the solenoid coils.
  3. Further reduced size, due to compactness of novel cooling system for the solenoid coils, allowing larger solenoid coils in a smaller space, resulting in lower power consumption and operating temperature.  The solenoids’ cooling system can be combined with that of the engine, using the same coolant or oil flow.
  4. Nearly unlimited valve-cant angles are possible, due to the compactness of both the solenoids and their cooling system.  This enables optimum valve aspect, even perpendicular to the tangent of the combustion dome of a hemispherical cylinder head.  Our motto is “CAMSHAFT COMPANIES CAN’T CANT LIKE WE CAN CANT.”
  5. The power needed for valve actuation is already available by simply enlarging the alternator to around a 3 kW device.
  6. Because of compact design and novel cooling, our design enables EXHAUST valves to be opened by our solenoid actuator.  Other designs are using pneumatic/hydraulic actuators for intake, and camshafts for exhaust.  This complicated and expensive approach has a very high parts count, comprising flow control valves, with fluid connection hoses and related hardware.
  7. Finally, and most importantly for industry, the Meiselectric cam-less engine design allows the lowest production cost due to the simplicity of the design, and is likely to be less expensive than the present art of mechanical camshaft variable valve timing (VVT).

This section of our IP portfolio is available to capable parties at a reasonable price point.  Please contact us at