A PUMP FOR A SYSTEM FOR DISPENSING A LIQUID AS A SPRAY, A SPRAY NOZZLE UNIT, A SYSTEM FOR DISPENSING A LIQUID AS A SPRAY AND A METHOD FOR DISPENSING A LIQUID AS A SPRAY

摘要

A pump includes a housing forming a chamber; a dispensing opening; and a regulator fixedly arranged in the chamber. The regulator includes an inner valve for regulating a flow of liquid between the container and the chamber; an outer valve for regulating a flow of liquid between the chamber and the dispensing opening; a stem resilient along its length, sideways bendable, and extending in a longitudinal direction of the housing between the inner valve and the outer valve; and a displacement guide located at an outer portion of the stem on an inner side of the outer valve. An outer perimeter of the displacement guide and a portion of an internal surface of a guide region located adjacent the displacement guide are adapted to transfer the sideways bending of the stem to a relative displacement between the outer valve and the housing along the longitudinal direction of the housing.