Fuel injection valve
AssigneesRobert Bosch GmbH, Parker-Hannifin Corporation
InventorsEckhard Bodenhausen, Horst Kirschner, Gerd Schollenberger, Markus Becker, Lutz Schuetze
Life of this patent
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Abstract
A fuel injection valve for a fuel injection system of an internal combustion engine includes a valve housing which is sealed off from an intake tube of an engine by a seal having a bead and a funnel-shaped cuff embodied on the bead, the projecting edge of which cuff is turned-under radially inward.
Claims20
In a fuel injection valve (1) for a fuel injection system of an internal combustion engine, having a valve housing (4), the valve housing (4) being sealed off from a valve receptacle of an intake tube (30) of the engine by a seal (24′), the improvement wherein
- the seal (24′) has a bead (25) and a cuff (27) embodied on the bead, the projecting edge (28) of which cuff protruding radially inward, further comprising a support ring (31) in the radially inward-protruding edge (28).
In a fuel injection valve (1) for a fuel injection system of an internal combustion engine, having a valve housing (4), the valve housing (4) being sealed off from a valve receptacle of an intake tube (30) of the engine by a seal (24′), the improvement wherein
- the seal (24′) has a bead (25) and a cuff (27) embodied on the bead, the projecting edge (28) of which cuff protruding radially inward wherein the cuff (27) is embodied as funnel-shaped and is formed of elastic material.
In a fuel injection valve (1) for a fuel injection system of an internal combustion engine, having a valve housing (4), the valve housing (4) being sealed off from a valve receptacle of an intake tube (30) of the engine by a seal (24′), the improvement wherein
- the seal (24′) has a bead (25) and a cuff (27) embodied on the bead, the projecting edge (28) of which cuff protruding radially inward further comprising a ring (33) securing the seal (24′) to the fuel injection valve (1).
In a fuel injection valve (1) for a fuel injection system of an internal combustion engine, having a valve housing (4), the valve housing (4) being sealed off from a valve receptacle of an intake tube (30) of the engine by a seal (24′), the improvement wherein
- the seal (24′) has a bead (25) and a cuff (27) embodied on the bead, the projecting edge (28) of which cuff protruding radially inward wherein the seal (24′) has sufficient resiliency to compensate for center offsets of at least ±1 mm of the fuel injection valve (1) relative to the intake tube (30).
Dependencies are inferred from the claim text.