Valve assembly and fluid injector
AssigneeCPT Group GmbH
InventorsLicia Del Frate, Carla Genise, Marco Maragliulo, Francesco Sabatini
Life of this patent
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Abstract
A valve assembly for a fluid injector is disclosed. The valve assembly includes a valve body having a longitudinal axis, an armature, a valve needle having a needle tip and a damping element. The armature and the damping element include penetrating first openings in which the valve needle is arranged. The damping element is fixed to the valve needle and arranged between the armature and the needle tip with respect to the longitudinal axis to attenuate a movement of the valve needle relative to the valve body during the operation of the valve assembly.
Claims14
A valve assembly for a fluid injector comprising:
- a valve body having a longitudinal axis and comprising a wall which forms a recess that enables a streaming fluid to pass through the assembly during an operation,
- an armature,
- a valve needle having a needle tip, and
- a damping element,
- wherein
- the armature and the damping element comprise penetrating first openings, in which the valve needle is arranged,
- the armature, the valve needle and the damping element are arranged axially movable in the recess with respect to the longitudinal axis and relative to the valve body, and
- the damping element is fixed to the valve needle and arranged between the armature and the needle tip with respect to the longitudinal axis to attenuate a movement of the valve needle relative to the valve body during the operation of the assembly,
- wherein the damping element comprises at least one penetrating second opening to enable the fluid to pass through the valve assembly during the operation, and the armature comprises at least one penetrating second opening to enable the fluid to pass through the valve assembly during the operation.
A valve assembly for a fluid injector, comprising:
- a valve body having a longitudinal axis and including a wall which forms a recess that enables fluid to flow through the assembly during an operation of the fluid injector;
- an armature;
- a valve needle having a needle tip;
- and
- a damping element;
- wherein each of the armature and the damping element includes a first opening through which the valve needle is arranged,
- wherein the armature, the valve needle and the damping element are axially movable in the recess with respect to the longitudinal axis and relative to the valve body,
- wherein the damping element is fixed to the valve needle and arranged between the armature and the needle tip with respect to the longitudinal axis to attenuate a movement of the valve needle relative to the valve body during the operation of the assembly, and
- wherein the damping element comprises at least one second opening defined through the damping element, the at least one second opening enabling the fluid to flow through the valve assembly during the operation, and the armature comprises at least one second opening defined through the armature, the at least one second opening enabling the fluid to flow through the valve assembly during the operation.
Dependencies are inferred from the claim text.