Patent ID: 7624897

Claim:
A pump for an airless dispenser of liquid products, characterised in that it comprises: a push button comprising a spraying nozzle which communicates with a network of channels formed locally on a wall of a frustoconical internal bore; a body which is provided, in an upper part of said body, with a dosing cell which has an elastically deformable wall and is equipped with an intake valve and is surmounted by a rigid collar for fixing said body in the bore of said push button, said collar having on outer periphery of said collar an inclined face which delimits a vortex chamber opposite said network, and having on an inner periphery of said collar a passage to said chamber; and an axial rod, borne by said push button, which extends through said body and a lower part of which, provided with at east one longitudinal channel, is engaged in a sliding manner in a supply duct which extends said dosing cell while forming the intake valve.