S-RAM is an innovative,  proprietary technology with a broad range of engineering benefits

The Sanderson Engine Development Company’s basic breakthrough mechanism represents a major paradigm shift in applications of all sizes that require conversion of linear to rotary motion or vice versa. Using a simple and previously unknown rocker-arm mechanism to transfer linear thrust to rotary motion, it applies to any device currently using a crankshaft, bent axis, swash plate, or wobble plate.  Because the mechanism’s inherent design advantages also apply in converting rotary to linear motion, the mechanism applies equally well to engines, pumps, compressors, electric generators, and hydraulic drive systems. Following are major characteristics of the S-RAM mechanism which directly impact operating efficiency and/or energy consumption:

• Extremely low friction - due to virtual elimination of piston side-wall forces
• Near perfect balancing - resulting in lower vibration and noise.  The Sanderson mechanism is within 1% of pure sinusoidal, compared to 7-13% for a standard crankshaft mechanism.
• Variable compression operation – without separate control devices
• Variable stroke operation – the mechanism can go from full stroke down to zero dynamically, eliminating the need for separate controls or wasted capacity
• Virtually unlimited scalability – conceptual prototypes range from a fractional horsepower air compressor to a multi-hundred HP pump
• Improved efficiency – the Sanderson mechanism has the ability to perform at higher efficiencies than are achieved by today’s best-performing competitive mechanisms
• Fewer parts – a Sanderson fixed stroke design has 20% fewer parts, and a variable stroke design has 50% fewer parts, than current comparable designs
• Major decreases in size and weight – as much as 40% lighter due to use of fewer parts and smaller size to generate the same amount of force compared to competitive designs
• Low emissions – due to high efficiency, low idle ability, and dramatic reductions in consumption of fuel
• Multi-fuel capability – a Sanderson engine is capable of running on different types and grades of fuels, and thanks to compression variability, can be easily switched