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Bosch to invest in new technologies to improve dynamic and consumer performance In August 2016, Bosch issued a press release for the new SYSTEM OF DEVICES for Bosch ZZH3Z | ZH2Z WaterBoost - Bosch ZZH2Z | WATERBOOST WATER INJECTION. The system consists of the injection of Photo: WaterBoost - Bosch water injection system Source: Bosch The principle of water injection is the following. For internal combustion engines with petrol, the effective average pressure in the cylinder has a direct impact on the engine torque. The higher the cylinder pressure, the higher the engine torque. Actual average pressure in the cylinder depends on a number of factors including the ignition advance (spark). The higher the PMI (the dead point) The problem is that too much pressure in the combustion chamber automatically leads to temperature rise and can lead to the occurrence of the problem. Photo: WaterBoost water injection system components from Bosch - section By injection water in the intake manifold reduces the temperature of the air in the engine.The water in contact with the hot air evaporates and leads to the lowering of the temperature in the cylinder For this reason the increase in the ignition may increase, WaterBoost water reduces fuel consumption by up to 4% on the WLTC cycle and 13% when the engine runs at high load and engine speeds. Reduced actual fuel consumption due to increased engine compression ratio can be improved by up to 5 Photo: Fuel consumption according to the ratio of water to fuel Injected ball (turbocharged engine In addition to the water injector, the WaterBoost system also contains a number of components: water pump, common ramp, electronic control module and water tank. According to Bosch data, a distilled water tank is sufficient for 3000 km.