Fuel line connector
AssigneeRobert Bosch GmbH
InventorsErwin Krimmer, Peter Jauernig, Bruno Hezel, Andreas-Bernd Rosenbusch
Life of this patent
Estimating the term…
Abstract
A fuel line connector for producing recirculation of leakage fuel in a fuel injection valve in which communication of a fuel line with a connection bore of a housing, and with the holder of a fuel injection valve is produced. This is achieved by providing that the fuel line connector has elastically deformable retaining arms, which, after a connecting stub of the fuel line connector has been plugged into a connection bore, engage the housing that contains the connection bore from behind.
Claims17
A plastic fuel line connector having a connecting stub (7), which can be plugged into a connection bore (5) of a housing (1) and which produces a sealed communication by means of a seal (11) that surrounds the connecting stub together with the connection bore (5), a device for axially fixing the connecting stub (7) in the connection bore, the device for axial fixation of the connecting stub comprises a resiliently deflectable metal retaining arm that originates laterally from the connecting stub and has one end that is embedded into the plastic fuel line connector, said arm extends in a plane longitudinally of an axis of the stub and extends resiliently along the housing (1) that receives the connection bore (5) when the connecting stub has reached its final plugged-in position.
A plastic fuel line connector having a connecting stub (7), a housing (1), said connection stub (7) can be plugged into a connection bore (5) of said housing (1) to produce a sealed communication by means of a seal (11) that surrounds the connecting stub and is in contact with the connection bore (5), a device for axially fixing the connecting stub (7) in the connection bore, the device for axial fixation of the connecting stub comprises two elastically deformable retaining arms (17) which are integrally formed onto said fuel line connector and originates laterally from the connecting stub, said two elastically deformable arms extend in a plane longitudinally of the axis of the stub or parallel to it and extends resiliently behind the housing (1) when the connecting stub has reached its final plugged-in position in the connection bore (5), two actuating arms (24) are disposed on the fuel line connector, said two actuating arms (24) protrude from the fuel line connector, in an opposite direction to the direction of a corresponding respective one of the retaining arms (17), and the retaining arms and actuating arms are connected to the fuel line connector in such a way that they constitute with it an elastic, articulated connection point so that the retaining arms can swing out from their rest position upon actuation of the actuating arms (24).
A fuel line connector comprising an elongated base including a connection stub (7) extending therefrom, a housing (1), said connection stub (7) is insertable into a connection bore (5) in said housing, said connection stub includes a seal (11) disposed on the connection stub, said seal together with the connection bore (5) establishes a tight connection, at least one elastically deformable holder arm (17) projects from said base laterally from the connection stub, at least one arm extends in a plane in a longitudinal direction of an axis of the connection stub or parallel thereto and has a free end that resiliently engages a shoulder on the housing from behind once the connection stub has attained a final inserted position, said housing is a sectioned part of a fuel injection valve that includes a nozzle holder and nozzle;
- the connection stub serves to return fuel for recirculation;
- and that the at least one holder arm is located in a radial plane to an axis of the nozzle holder and engages the housing of the nozzle holder of the injection valve from behind.
Dependencies are inferred from the claim text.