Throttle device for controlling an amount of fuel to be supplied to a fuel injection nozzle, as well as an injection device
AssigneeContinental Automotive GmbH
InventorsAxel Burkhardt, Sandeep Kumar Mouvanal
Life of this patent
Estimating the term…
Abstract
A throttle device for controlling a fuel quantity to be supplied to a fuel injection nozzle includes a control chamber and a supply device for supplying fuel to the control chamber. The supply device includes an inlet throttle having a length selected such that a fuel flowing through the inlet throttle, when in operation, flows through the inlet throttle in a turbulent flow. An injection device including the throttle device is also provided.
Claims14
A throttle device for controlling a fuel quantity to be supplied to a fuel injection nozzle, the throttle device comprising:
- a control chamber for collecting the fuel;
- and
- a supply device for supplying the fuel to said control chamber in a main flow direction;
- said supply device having an inlet throttle for reducing a pressure of the fuel in said main flow direction, said inlet throttle having a length, and said length of said inlet throttle being selected to cause a fuel flowing through said inlet throttle during operation to flow through said inlet throttle in a turbulent flow, said length of said inlet throttle lying in a length range from 0.4 mm to 0.5 mm and said inlet throttle having a diameter lying in a diameter range from 171 μm to 176;
- and
- a discharge device for discharging the fuel from said control chamber, said discharge device discharging the fuel from said control chamber in a discharge flow direction being opposite to said main flow direction of the fuel in said supply device.
A throttle device for controlling a fuel quantity to be supplied to a fuel injection nozzle, the throttle device comprising:
- a control chamber for collecting the fuel;
- and
- a supply device for supplying the fuel to said control chamber in a main flow direction;
- said supply device having an inlet throttle for reducing a pressure of the fuel in said main flow direction, said inlet throttle having a length, and said length of said inlet throttle being selected to cause a fuel flowing through said inlet throttle during operation to flow through said inlet throttle in a turbulent flow said length of said inlet throttle lying in a length range from 0.2 mm to 0.3 mm and said inlet throttle having a diameter lying in a diameter range from 166 μm to 170 μm ;
- and
- a discharge device for discharging the fuel from said control chamber, said discharge device discharging the fuel from said control chamber in a discharge flow direction being opposite to said main flow direction of the fuel in said supply device.
The throttle device for controlling a fuel quantity to be supplied to a fuel injection nozzle, the throttle device comprising:
- a control chamber for collecting the fuel;
- and
- a supply device for supplying the fuel to said control chamber in a main flow direction;
- said supply device having an inlet throttle for reducing a pressure of the fuel in said main flow direction, said inlet throttle having a length, and said length of said inlet throttle being selected to cause a fuel flowing through said inlet throttle during operation to flow through said inlet throttle in a turbulent flow;
- a discharge device for discharging the fuel from said control chamber, said discharge device discharging the fuel from said control chamber in a discharge flow direction being opposite to said main flow direction of the fuel in said supply device;
- said discharge device has an outlet throttle for reducing a pressure of the fuel in said discharge flow direction;
- said discharge device has an outflow region disposed upstream of said outlet throttle in said discharge flow direction;
- said discharge flow direction has an axis in said outflow region;
- and
- said outlet throttle has a longitudinal axis being inclined relative to said axis of said discharge flow direction in said outflow region.
Dependencies are inferred from the claim text.