Arrangement for introducing water into the intake manifold of an internal combustion engine and control device

A system comprising:

• a water container and an element of an inlet region of an internal combustion engine, the water container and the element of the inlet region of the internal combustion engine being connected together heat-conductively;
• a first fluidic connection which connects the water container to the element of the inlet region of the internal combustion engine so as to allow a pressure balancing, and a second fluidic connection which connects the water container to a water inlet arranged at a height below the water container for introduction of water into an air flow leading to the internal combustion engine, the second fluidic connection containing a changeover valve;
• and a Venturi nozzle included in the element of the inlet region which is connected to the water container through the second fluidic connection to deliver water to the engine, the Venturi nozzle delivering water between a throttle valve and the internal combustion engine dependent on engine load.

A method comprising:

• coupling water to a Venturi nozzle of an inlet valve connected to an intake manifold of an engine downstream of an inlet throttle and upstream of the engine, where water injection via the nozzle is dependent upon engine load;
• routing air from upstream of a throttle positioned in a manifold inlet through a bypass valve to the inlet valve to reduce pressure at the Venturi nozzle, enabling waterflow into the intake manifold;
• and actuating the bypass valve for a time duration related to an amount of water desired for combustion based on engine operating objectives.