The K6 ‘York’ rotary engine was conceived in January 2016, as a direct result of Jordans Consultancy needing to work within Network Rail’s axle weight limits for steam operations above 100mph (restrictions which did not exist during the ‘days of steam’).

It quickly became apparent that not only should the K6 rotary work for steam, but that it should also work for internal combustion using a wide variety of fuels. Capitalising on Railfast Intermodal’s existing relationship with University of Birmingham, contact was made with Professor Miroslaw Wyszynski (MEng PhD Warsaw; MSAE, MSIMP) who in May 2016 began to oversee a number of over student projects over 2 years, aimed at investigating the performance and viability of the design (primarily in relation to internal combustion). 

Some results of the work by University of Birmingham were presented by Professor Wyszynski at the 44th International Scientific Congress on Powertrain and Transport Means EUROPEAN KONES, Czestochowa & Wisla (Poland), 24th – 27th September 2018, where they were well received. As soon as the paper is placed in the a public domain, a link will be made available via this website.

The potential of the rotary engine to be superior to a conventional IC has been realised for many years. Perhaps the most famous example being the Wankel engine. Unfortunately, designs to date have suffered certain drawbacks which have limited their commecial viability (e.g. the Wankel engine suffers from componenet wear and lubrication issues). We believe we have managed to overcome these drawbacks by designing a rotary piston engine with a conrod-stroke ratio of 0.55, which enables a whole new set of engine performance possibilities (due to the relative piston movement within the cylinder walls no longer being a sine wave).

Until a prototype has been built and its performance verified, we do not wish as yet to go public regarding anticipated performance statistics, as compared to more conventional piston arrangements. We are, however, willing to enter confidential discussions with interested parties.

UK Patent Application (NP1) Number 1816159.6 was filed in April 2016 in relation to core aspects of the design, which was inspired by the ‘Gnome’ aero engine of World War I. Given that there have been (as yet) no serious challenges with respect to prior art, we expect the application to be granted any day.

Potential applications for the K6 rotary are numerous and varied; essentially anywhere where a conventional piston engine is currently used.