ansaugkrümmerdruck

Ansaugkrümmerdruck refers to the pressure within the intake manifold of an internal combustion engine. This pressure is a critical parameter that influences engine performance and fuel efficiency. In naturally aspirated engines, the intake manifold pressure is typically below atmospheric pressure during the intake stroke, a condition known as vacuum. This vacuum is created as the piston moves down, drawing the air-fuel mixture into the cylinder. The magnitude of this vacuum is an indicator of engine load and efficiency. A higher vacuum generally signifies lower engine load.

In turbocharged or supercharged engines, the intake manifold pressure can be significantly above atmospheric pressure. This positive pressure, often referred to as boost pressure, is generated by the turbocharger or supercharger forcing more air into the cylinders than would naturally enter. Higher boost pressure allows for more fuel to be injected, leading to increased power output.

Sensors, such as the Manifold Absolute Pressure (MAP) sensor, are used to measure the ansaugkrümmerdruck. This information is fed to the engine control unit (ECU), which then adjusts fuel injection, ignition timing, and other engine parameters to optimize performance, emissions, and fuel economy based on the measured intake manifold pressure and other sensor data. Variations in ansaugkrümmerdruck can indicate potential issues such as leaks in the intake system, throttle body problems, or issues with the turbocharger or supercharger.