Global revenues for compressors, expanders, pumps, and control valves exceed $70 billion annually—yet for more than half a century, the industry has seen few meaningful breakthroughs to tackle persistent inefficiencies. Michael Sereda-Mohr, founder of Spherical Rotors, has dedicated his mechanical engineering career to unraveling complex technical challenges—including extensive patent research beyond the workplace to deepen his expertise.
In Michael’s long experience as a professional engineer working on new technology development, he gained experience with novel compression technologies and writing patents. The journey that led to Spherical Rotors began with his in-depth study of spherical rotor patents dating back to the 1990s, paired with a first-principles approach to constructing viable spherical rotor geometries.
Even during university, Michael demonstrated a deep commitment to technical mastery—re-deriving key engineering formulas from first principles to internalize their logic, and providing an analytical solution to a brain teaser that had stumped his peers for years. After filling nearly two inches worth of blank pages with failed derivations, he finally developed the mathematical formulas necessary to build a functioning system. Born from repeated failure and persistence, these formulas now define the patented spherical rotor geometries at the core of Spherical Rotors' innovation. Combined with novel adjacent components, the design conceptually resolves all known limitations that are believed to have historically prevented widespread commercial success in this category.
Headquartered in Calgary, Alberta, Spherical Rotors is progressing through prototyping with support from industry, government, and a growing team of service providers, mentors, advisors, and investors. We are progressively de-risking the technology through prototype testing in a simulated environment, followed by field pilot testing at committed producer and utility sites, ahead of commercial sales.
Our goal is to usher in a new era of pressure, power, and heat—for savings and sustainability. While screw compressors and expanders have seen widespread adoption and remain the most adaptable within their operating range, they still face limitations in adaptability—and especially in pressure ratings and efficiency. Spherical Rotors’ technology is designed to overcome these challenges for global impact.
For example, Spherical Rotors’ expander mode is expected to be advanced enough to function as the world’s first power-generating gas control valve—a cost-effective and practical solution to capture otherwise wasted energy in natural gas pressure drops, delivering reliable, zero-emissions electricity.
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