The First Major Disruption to Engine Technology in 100 Years
Our patented technology improves the typical combustion engine across efficiency, weight, size, vibration, and noise.
TRADITIONAL ENGINES ARE INCREDIBLY INEFFICIENT. WE ASKED OURSELVES WHY?
LPI has developed two core technologies, a patented thermodynamic cycle and our patented X-Engine.
Our patented thermodynamic cycle leverages a higher compression ratio, constant volume combustion and over-expansion, aiming to create the world’s most efficient engine.
Compression: For maximum efficiency, air is compressed to a high compression ratio, fuel is injected and compression ignited (CI-HEHC). The X Mini utilizes a spark-ignition (SI-HEHC) version of the cycle with a lower compression ratio standard for gasoline engines. A dwell near top-dead-center forces combustion to occur at nearly constant-volume conditions. Combustion products are over-expanded using a larger expansion volume than compression volume, as in the Atkinson Cycle. Cycle-skipping power modulation allows high efficiencies at low power settings while simultaneously cooling the engine’s walls internally and providing partial heat recovery. Water may be injected to internally cool the engine. Some of this cooling energy is recuperated, as the water turns to steam, increasing the chamber pressure.
X-Engine vs. Wankel
Our patented X-Engine solves the problems of the rotary engine without sacrificing the benefits. It’s simple, having only two moving parts; has practically zero vibration; is extremely compact and lightweight; and can run on heavy fuel, gasoline, and even gaseous fuels like propane and hydrogen.
We turned the traditional Wankel inside out. Traditional Wankels have a triangular rotor in a "peanut" shaped (trochoidal) housing. We have a peanut shaped (trochoidal) rotor within a tri-lobed shaped housing. By turning the rotary "inside out", the X-Engine has stationary apex (tip) seals that can be directly lubricated. Furthermore, the long, skinny, rotating combustion chamber of the Wankel - becomes a stationary combustion chamber within the housing, that can be optimized for better fuel air mixing and combustion. In this way, we address many of the challenges of the old Wankel rotary including sealing, cooling, lubrication, emissions, and efficiency.
Lightweight & Compact
Up to 80% smaller and lighter than the traditional piston Diesel engines.
Only two primary moving parts, optimally balanced.
High-Efficiency and Lower Fuel Consumption
The optimized thermodynamic cycle has the potential to decrease fuel consumption by 30%, thereby lowering CO2 emissions and the cost of running an engine
Quiet and Near-Zero Vibration
With lower pressure exhaust and just two moving components that are optimally balanced, the engine is inherently quiet, and offers exceptionally low vibration.