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CHARACTERISTICS OF AN ARTICULATED RHOMBIC PRISM PISTON:
   DOUBLE SPECIFIC POWER 

vittorio.scialla@strumentiperleaziende.com
1. An articulated rhombic piston completes a four strokes cycle within a single drive shaft revolution, rather than two revolutions needed by a cylindrical piston.
         Start of intake               Start of compression     Ignition and start of expansion       Start of exhaust

ADVANTAGES

Improved
performance
Improved
efficiency 
Cost
reduction
Lower
vibration/
noise
Longer
durability
Higher
reliability
Note
***
Double specific power
(at the same RPM)
           At the same rotational speed, it doubles the ignition rate and the output power.
 
***
Half RPM
(at the same power output)
  
***
**
   It outputs the same power at halved rotational speed, and reduces:
  • by 75% vibration and related power loss
  • by over 50% friction power loss and friction wear