Valve Assembly For An Injection Valve And Injection Valve
AssigneeContinental Automotive GmbH
InventorMauro Grandi
Life of this patent
Estimating the term…
Abstract
A valve assembly (60) for an injection valve (62) has a valve body (4) including a central longitudinal axis (L), the valve body (4) has a cavity (8) with a fluid inlet portion (42) and a fluid outlet portion (44), a valve needle (10) axially movable in the cavity (6), the valve needle (10) preventing a fluid flow through the fluid outlet portion (44) in a closing position and releasing the fluid flow through the fluid outlet portion (44) in further positions, and a fluid flow directing element (46) arranged in the fluid outlet portion (44) coaxially between the valve body (4) and the valve needle (10) and extending in radial direction away from the valve needle (10) in a way that a fluid flow between the valve needle (10) and the fluid flow directing element (46) is prevented.
Claims18
A valve assembly for an injection valve, comprising
- a valve body including a central longitudinal axis, the valve body comprising a cavity with a fluid inlet portion and a fluid outlet portion,
- a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in further positions, and
- a fluid flow directing element arranged in the fluid outlet portion coaxially between the valve body and the valve needle and extending in radial direction away from the valve needle in a way that a fluid flow between the valve needle and the fluid flow directing element is prevented.
An injection valve with valve assembly for an injection valve, comprising
- a valve body including a central longitudinal axis, the valve body comprising a cavity with a fluid inlet portion and a fluid outlet portion,
- a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in further positions, and
- a fluid flow directing element arranged in the fluid outlet portion coaxially between the valve body and the valve needle and extending in radial direction away from the valve needle in a way that a fluid flow between the valve needle and the fluid flow directing element is prevented.
A method of operating a valve assembly for an injection valve with a valve body including a central longitudinal axis, the valve body having a cavity with a fluid inlet portion and a fluid outlet portion, and a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in further positions, the method comprising the step of:
- arranging a fluid flow directing element in the fluid outlet portion coaxially between the valve body and the valve needle which extends in radial direction away from the valve needle in such a way that a fluid flow between the valve needle and the fluid flow directing element is prevented.
Dependencies are inferred from the claim text.