Patents Assigned to Prufrex-Electro-Apparatebau Inh. Helga Muller, geb. Dutschke
  • System for controlling the carburetor of an internal combustion engine
    Patent number: 5031593
    Abstract: A control system for the carburetor of an internal combustion engine wherein the carburetor has a choke valve disposed at the inlet of the carburetor induction tube and the choke valve is operated automatically by an actuator. The actuator for the control includes a pulse-width modulator in which the pulse width or the degree of modulation is influenced by a family of characteristics stored in a programmable memory, the memory applying signals to the pulse-width modulator for pre-specified air-fuel mixtures in accordance with engine speed.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: July 16, 1991
    Assignee: Prufrex-Electro-Apparatebau Inh. Helga Muller, geb. Dutschke
    Inventors: Werner Erhard, Werner Flugel