Valve arrangement for e.g. gasoline direct injection in motor vehicle, has closing element for releasing and closing spraying holes at main valve seat, where gap is formed between closing element and inner element of housing

摘要

The arrangement (1) has a prevalve seat (9) arranged at a closing element (7) of a main valve. A prevalve (3) releases and closes a connection (19) between a pressure compensation chamber (13) and a pressure chamber (18), where the closing element releases and closes spraying holes (11) at a main valve seat (10). A gap (16) with small width is formed between the closing element and an inner element (20a) of a housing (20) for controlling a leakage over the gap, where the inner element and the closing element are cylindrically shaped.