Pneumatically acting brake boosters are installed in passenger cars and light-duty trucks to increase braking reliability and ease of handling. For diesel engines and increasingly also for gasoline engines, specifically those with direct injection, vacuum pumps are used for supplying brake boosters and servo valves with vacuum, for controlling exhaust gas recirculation systems and turbo chargers, for example. Based on longstanding experience with pistons, membrane and swinging-vane vacuum pumps a single-vane vacuum pump was developed in line with optimization measures. The rugged pump is equipped with a rotary drive and complies with all technical requirements. Its design additionally offers the benefit of lower production costs thanks to a reduced number of component parts. The single-vane vacuum pump can be fitted with a secondary vacuum port for servo devices.
Moreover, the single-vane vacuum pump is also available in combination with an oil pump as a so-called tandem pump.