Fuel injection unit
AssigneeRobert Bosch GmbH
InventorUwe Liskow
Life of this patent
Estimating the term…
Abstract
A fuel injection system including at least one fuel injector having an inlet section and a fuel distributor line with a connecting piece for each fuel injector. For sealing a connection of each fuel injector to the respective connecting piece of the fuel distributor line, a ring-shaped seal support is provided for each, having an inner sleeve which is guided by a guide section of the inlet section, and having an outer sleeve which radially surrounds the inner sleeve and is elastically connected to the inner sleeve radially. The seal support together with the outer sleeve surrounds a sealing element. At the same time, the sealing element is peripherally in contact with an inside wall of the connecting piece and axially in contact with a radial end face of the inlet section of the fuel injector.
Claims16
A fuel injection system for injecting fuel into an internal combustion engine, having at least one fuel injector (1) which includes an inlet section (4), and having a fuel distributor line (2) which has a connecting piece (3) connectable to the inlet section (4) for each fuel injector (1), wherein to sealingly connect each fuel injector (1) to the respective connecting piece (3) of the fuel distributor line (2), a ring-shaped seal support (30) is provided in each case, which has an inner sleeve (8) guided by a guide section (5) of the inlet section (4), and an outer sleeve (9) surrounding the inner sleeve (8) radially and elastically connected to the inner sleeve (8) radially;
- and the seal support (30), together with outer sleeve (9), surrounds a sealing element (14), and, at the same time, it holds the sealing element (14) peripherally against an inside wall (22) of the connecting piece (3) and axially against a radial end face (6) of the inlet section (4) of the fuel injector (1).
Dependencies are inferred from the claim text.