INJECTOR INSERT TWO, OPPOSED HOUSING WEDGES 8-PIECE INTERLOCK STACKED-DISC ROTOR SINGLE-PIECE IN718 END HOUSING SEALED CORE
MK6-NGT CORE  ·  INJECTORS · WEDGES · HOUSINGS
THE multi disc rotary generator mark 6 - natural gas turbine

One system
runs on the gas
nobody else can use.

The MDRG-MK6-NGT is a turbocharged Brayton-cycle turbine generator. Its core is a novel disc rotor assembly designed for continuous combustion of raw wellhead methane and hydrogen. A direct-drive 95 kW generator supplies electricity and optional Thermal Module provides midgrade steam.

The modular structure of the system allows customization to the well flow; from a single deployment to multi-megawatt EaaS systems.

The MDRG MK6-NGT modular skid at a behind-the-meter site
MDRG MK6 NGT a single Behind the meter deployment with heat recovery.
Active Prototype · 2026
MK6-NGT
78.7 kWe net · Methane
Current program. First-article rotor in fabrication. Goes to the wellhead and stays there.
Scale Out
MW-Class Scaling
Multi-MK6 Array
Multi-unit deployments combining many MK6 cores into a megawatt-class skid for industrial behind-the-meter and grid-edge.
HOW IT WORKS

Wellhead gas in.
Grid-ready power out.

The system is designed to be simple and serviceable.

01
Intake
Operator gas enters through a single inlet at wellhead pressure. Dewetted, but otherwise untreated. In areas that have other valuable gasses (He, H2) our gas processing module will scrub them out of chain.
02
Boost
A common automotive turbocharger raises inlet air pressure ahead of the combustor and supplies compressed bypass air for other operations.
03
Continuous combustion
Fuel and boosted air burn continuously in an annular reverse-flow chamber. Variable gas composition and intermittent flow are absorbed by the cycle instead of stalling it.
04
Disc-stage expansion
Hot gas expands through the disc rotor assembly driving it by a combination of channel confinement and boundary-layer adhesion. Carry-over moisture and particulate pass through.
05
Generation & exhaust
The rotor drives a high-speed permanent-magnet generator on a common shaft — no gearbox. Output conditions to 480 V three-phase. Exhaust heat leaves the unit recoverable with the Thermal Module.
Stranded… power and revenue.

Grid interconnect and behind-the-meter; we have solutions for both.

DispatchableRuns on wellhead flow, around the clock
Either side of the meter480 V three-phase — grid-tied or behind-the-meter
Two revenue linesElectricity sold or offset — and a flare that stops burning
CycleTurbocharged BraytonContinuous combustion · no reciprocating mass
Nominal output75 kWe78.7 kWe CFD-validated · +4.9% vs target
Generator95 kW PMGHigh-speed permanent magnet · direct drive, no gearbox
Electrical interconnect480 V, 3-phaseGrid-tied or behind-the-meter
Rotor21 discs129 log-spiral vane channels per disc
Rotor processIN718 · single-shot DMLSPrinted as one piece — no welded joints, no assembled vane stack
Housing8-piece IN718 ringInterlocking · sealed core, never opened in the field
BearingsSilicon nitride hybridOrtech Ceramics · Sacramento CA
FuelDewetted wellhead gas70% CH₄ minimum · no pre-treatment skid required
Fuel drawn17 Mcf/dayOperating window 5–75 Mcf/day
ConfigurationOne well, one unitNever gathered · four units per 75 Mcf/day pad
Build lead time2 weeksPrint capacity, not castings or long-lead tooling
Field install2 daysSkid-mounted · 2-person crew
Service interval8,760 hrHot section out as a unit · 2-person crew, one day
Program statusPre-first-fireDesign closure 2026
SIX GENERATIONS

Each generation removed a risk. The current removes a liability. The next adds value.

Generation 4
MK4
First electricity produced — 1.5 kWe. Confirmed the disc-stage architecture converts flow to shaft work to current.
Complete · 2024
Generation 5
MK5
Gas flow path and manufacturability vetted. CFD baseline with RandSIM / Ansys; time-and-material study with EOS.
Complete · 2025
Generation 6
MK6
Core, housings and injectors prototyped and confirmed for IN718. CFD-validated at 78.7 kWe — 4.9% above the 75 kWe target.
Active · Design closure 2026
THE ENGINE

Two legendary inventors, two old ideas,and one regular guy merging both.

In the summer of 1987 I was ten, I got a new radio-control airplane that had a standard OS Max FP .40 piston engine in it. What I actually wanted was the Graupner / OS Wankel .30; the smallest rotary combustion engine at the time, and it cost far more than the airplane itself. So I went to the school library and read Felix Wankel’s book.

That reading is what triggered my dream of a clean energy future. The machine in the dream was not a Wankel. It was a solid circular rotor with the combustion happening around the outside of it. I had no way of knowing it then, but that vision was far closer to what Nikola Tesla had drawn more than sixty years before I was born — The Tesla Turbine. I would not learn about it for another thirty years.

The Planetary Disc Combustion Process (PDCP) was my first engine design in 2004. The Multi-Disc Rotary Generator (MDRG) is the evolution that came from it. And there is a strange footnote to all of this: I learned in 2025 that Charles Fletcher Peck, Tesla’s first investor, was my ninth great uncle. This is definitely in my blood.

Nikola Tesla
Nikola Tesla
1856 – 1943
Boundary-layer flow

Tesla's bladeless turbine moves gas by adhesion and viscosity at the surface of a spinning disc, rather than by pushing on blades. Forgiving of exactly the dirty, wet, variable gas that destroys precision machinery. Introduced into the program in 2017. It is the half of the machine that tolerates unconditioned wellhead gas.

The bladeless turbine
The bladeless turbine
The disc stack
The disc stack
The Tesla–Peck contract, 1888 ↗
Charles Fletcher Peck, Tesla's first documented investor, is a ninth great uncle of the founder — discovered long after the architecture was underway.
+
Felix Wankel
Felix Wankel
1902 – 1988
The rotary engine

A three-sided rotor turning inside a two-lobe epitrochoid housing. Each face of the rotor completes intake, compression, combustion and exhaust once per revolution, so a single rotor fires three times per turn with nothing reciprocating — no pistons, no valves, no stopping and reversing.

Rotor inside the epitrochoid housing, in plan
Rotor in the housing, in plan
Rotor and housing, isometric
Rotor and housing
1957 · First running prototype at NSU. The rotor and its housing are his
=
Brian Peck
Brian Peck
1977 –
PDCP, then the MDRG

The PDCP came first and ran for a decade. Laying Tesla's smooth-disc boundary layer and Wankel's rotary geometry over it produced the MDRG: a stacked-disc rotor with log-spiral vane channels, continuous combustion, and a direct-drive generator.

The four geometries merged: Tesla's discs, Wankel's housing, my PDCP sectors and the MDRG vanes
Tesla + Wankel + PDCP → MDRG
The stacked disc rotor
The stacked disc rotor
PDCP 2004 · MDRG 2022–today · Designed and built in Liberty, Missouri.