Daimler-Benz Ag

Daimer-Benz Aktiengesellschaft

Klaus Blumensaat

Franz Bender

Reiner Bachschmid

Horst Hanauer

Manfred Fortnagel

Wolfgang Burthel

A method and apparatus for the load-dependent control of a turbocharger which is arranged in an internal combustion engine, a turbocharger includes an adjustable turbine guide apparatus which is adapted to be moved by way of an adjusting drive in the direction closing position or in the direction opening position. In order to be able to keep the response time of the turbocharger minimal during positive load changes with an optimum fuel consumption, the turbine guide apparatus is initially guided along a first predetermined characteristic curve in the direction closing position and subsequently in dependence on the charging pressure increase conditioned on the load increase according to a second predetermined characteristic curve again in the opening direction.

Method and apparatus for the charging-pressure-dependent control of a

A vacuum control system for devices in vehicles is disclosed, such as for controlling air-conditioning and heating equipment. Temperature-sensitive control valves which are inserted in the cooling-water circuit of an internal-combustion engine are automatically operated at a specific temperature to control a pneumatic actuator located vacuum control circuit for the devices.

Pneumatic control system

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Esslingen-Weil, Germany

Klaus Blumensaat