Floating Piston-type Governor (e.g., Bessiere) Patents (Class 123/384)
  • Fuel injection pump for internal combustion engines
    Patent number: 4409939
    Abstract: A fuel injection system is proposed which has a high-pressure pump, a fuel reservoir determining the injection pressure, and an intermediate piston, during whose first half-stroke meters fuel under low pressure and during a second half-stroke, driven by the reservoir, injects the metered fuel. In order to vary the duration of injection, the pressure in the reservoir is determined either by means of the supply quantity of the high-pressure pump or by means of an appropriate pressure control valve in an outflow conduit.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: October 18, 1983
    Assignee: Robert Bosch GmbH
    Inventors: Franz Eheim, Gerald Hofer, Helmut Laufer