Dampfdruckverlusttest

Dampfdruckverlusttest refers to a testing procedure used to assess the integrity of vapor containment systems. This method is particularly relevant in the automotive industry for evaluating the evaporative emission control (EVAP) system of vehicles. The EVAP system is designed to prevent fuel vapors from escaping into the atmosphere.

The test involves creating a controlled pressure or vacuum within the fuel tank and then monitoring the system over a specific period. By measuring the change in pressure, technicians can determine if there are any leaks in the fuel lines, charcoal canister, or other components of the EVAP system. A significant drop in pressure indicates a leak, suggesting that fuel vapors could be escaping.

Modern vehicles often employ sophisticated EVAP systems that require precise testing. The Dampfdruckverlusttest is a standard diagnostic tool used by repair shops and manufacturers to ensure that these systems are functioning correctly and meeting environmental regulations. The procedure typically involves sealing the EVAP system, applying a low-pressure air source, and then observing any pressure decay. The rate of pressure decay is compared against established thresholds to identify the presence and severity of leaks. This test is crucial for reducing hydrocarbon emissions and preventing fuel loss.