MOTORTECH has developed complete systems to regulate fuel/air ratios, in compliance with the legal requirements on emissions.


This allows for flexible and reliable regulation of the mixture when using fuels with variable amounts, a particularly critical scenario when dealing with biogas engine mixtures.


Increasing use of biogas as fuel for electricity generation in cogeneration plants has resulted in the need for a more effective and rapid regulation of the mixture, due to the variation in the quality of biogas. MOTORTECH has developed a range of Venturi effect mixers, with electronic control of the mixture and butterfly valves to adapt their operation to instantaneous changes in biogas quality.


Butterfly valves regulate the flow of gas air and mixture and the engine speed and power. Motortech ITB butterfly valves are equipped with a stepper motor, which bypasses the need for external actuators. Stepper motors are extremely precise. They are managed with a VariStep3 in combination with a SC100 speed controller.


Encendido y kits de conversión

Ignition systems

Pre-assembled, factory-tested ignition systems that provide quick and easy on-site assembly.

Bujías industriales y accesorios

Spark plugs and accessories

Supplies for DENSO, CHAMPION and BERU spark plugs, together with a full range of accessories to clean, test and keep spark plugs in perfect working order.

Control y manejo del motor de gas

Gas engine management

All-in-one system to manage gas engines and their components and to manage the combined heat and power facility (CHP) itself.

Sistemas de cableado

Wiring systems

MOTORTECH ignition cables and rails are compatible with almost all gas engines.

Regulación de mezcla

Mixing control

Motortech offers a wide range of our own solutions for emission control and advanced mixture regulation.

Motores de gas y accesorios generales


Motortech carries specific solutions for exhaust catalysts, capable of adapting emissions from gas engines to the most recent legal standards.