High-pressure fuel device
AssigneeRobert Bosch GmbH
InventorsSieghart Maier, Siegfried Ruthardt, Klaus Wuerth, Thomas Pauer
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Abstract
A high-pressure fuel system, having a housing (1) that includes a first high-pressure body (3) and a second high-pressure body (5), which contact one another at a contact face (30). A high-pressure chamber (23) embodied in the housing (1) passes through the contact face (30), and at least intermittently a high fuel pressure is present in it. A wall part (7), which has a longitudinal axis (15), surrounds the housing (1) at least in the region of the contact face (30), so that between the wall part (7) and the housing (1), a leak fuel chamber (32) is formed, which is sealed off from the outside.
Claims9
A high-pressure fuel system, having a housing (1) that includes a first high-pressure body (3) and a second high-pressure body (5), which contact one another at a contact face (30) and through which contact face (30) a high-pressure chamber (23) embodied in the housing (1) passes, in which chamber a high fuel pressure exists at least intermittently, and having a sleevelike wall part (7), which has a longitudinal axis (15) and which surrounds the housing (1), at least in the region of the contact face (30) on the outer jacket face, so that between the wall part (7) and the housing (1), a leak fuel chamber (32) is formed, characterized in that the leak fuel chamber (32) is sealed off from the outside.
The high-pressure fuel system of one of the foregoing claims, characterized in that the high-pressure fuel system is embodied as a fuel injection valve for internal combustion engines.
Dependencies are inferred from the claim text.