Pump for dispensing a dose of a liquid product and range including such pumps

摘要

#CMT# #/CMT# The pump has a tubular body (1) extending along a central axis (A) between a lower end (3) and an upper end (4) of the body. An end member (14) has a central opening associated with the upper end of the body. A dosage chamber (2) is formed between an inlet orifice (6) and an exhaust orifice, and is delimited by the body and a compression unit. An inlet valve and an exhaust valve (33) selectively close the inlet orifice and the exhaust orifice, respectively. The compression unit is stopped against a limit stop i.e. shoulder (39), of the end member in stroke end position. #CMT#USE : #/CMT# Pump for distributing a dosage of a fluid product in a perfumery field, pharmacy field and cosmetic field. Can also be used for distributing a dosage of a liquid product and a viscous product. #CMT#ADVANTAGE : #/CMT# The compression unit is stopped against the limit stop of the end member in the stroke end position, thus permitting the end member to form a single module allowing an adjustment in the volume of the fluid product dosage to be distributed for reducing the number of manufacturing operations and for limiting the adaptation of designing machines such as production tools, with components of the pump for varying the volume of the dosage. The configuration of the pump permits to ensure rapid pump priming, improve the suction capacity of the pump, and improve sealing of the pump. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a longitudinal sectional view of a fluid product dosage distributing pump in a rest position. A : Central axis 1 : Tubular body 2 : Dosage chamber 3 : Lower end 4 : Upper end 6 : Inlet orifice 14 : End member 33 : Exhaust valve 39 : Shoulder.