Control module for an injector of an accumulator injection system
AssigneeSiemens Aktiengesellschaft
InventorsWolfgang Bloching, Willibald Schürz
Life of this patent
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Abstract
A control module (1) for an injector of an accumulator injection system is used to control and guide a valve body (8). The control module comprises a high pressure supply line (2) for supplying fuel, and a guiding device (3) for guiding the valve body (8). A control room (4), an inlet throttle (5) and an outlet throttle (6) are also provided. The inlet throttle (5) connects the high pressure supply line (2) to the control chamber (4) and the outlet throttle (6) connects the control chamber (4) to a control valve (15). A control piston (7) is arranged in the control chamber (4), the end of the control piston opposite the control chamber (4) being connected to a high pressure region (9) on the valve body (8).
Claims22
A control module for an injector of an accumulator injection system for the control and guidance of a valve body, comprising:
- a high-pressure inflow for the delivery of fuel;
- a guide device for guiding the valve body;
- a control space;
- an inflow throttle connecting the high-pressure inflow and the control space;
- an outflow throttle connecting the control space and a control valve;
- and
- a control piston arranged in the control space and connected to the valve body and further connected at an end opposite the control space to a high-pressure region of the valve body.
An injector for an accumulator injection system having a control module for the control and guidance of a valve body, comprising:
- a high-pressure inflow for the delivery of fuel;
- a guide device for guiding the valve body;
- a control space;
- an inflow throttle connecting the high-pressure inflow and the control space;
- an outflow throttle connecting the control space and a control valve;
- a control piston arranged in the control space and connected to the valve body and further connected at an end opposite the control space to a high-pressure region on the valve body;
- and
- a bypass throttle connecting the high-pressure inflow and the control valve.
A control module for an injector of an accumulator injection system for the control and guidance of a valve body, comprising
- a high-pressure inflow for the delivery of fuel;
- a guide device for guiding the valve body;
- a one-part springless control space;
- a control piston which is arranged in the control space and which is connected indirectly or directly to the valve body and is connected at its end opposite the control space to a high-pressure region on the valve body;
- an inflow throttle which makes a connection between the high-pressure inflow and the control space;
- an outflow throttle which makes a connection between the control space and a control valve in any position of the control piston;
- and
- a nozzle spring for the return of the valve body, which surrounds the valve body and is arranged in the high-pressure region;
- and
- a bypass throttle connecting the high-pressure inflow and the control valve.
Dependencies are inferred from the claim text.