Precision, constant-flow reciprocating pump
AssigneeSwissinnov Product Sarl
InventorsFlorent JUNOD, Thierry NAVARRO
Life of this patent
Estimating the term…
Abstract
A pump having two pistons which are driven by a cam belonging to an external rotor and which are inserted into two cylinder blocks mounted parallel to each other in such a way as to form two opposite, parallel, eccentric pump chambers The pump chambers have at least one inlet port through which liquid is drawn into the pump chambers during the fill stroke of the pistons, and then expelled from the pump chambers during the discharge stroke of the pistons to at least one outlet port, the outflow rate of which is constant and even.
Claims17
A pump with an interchangeable fluidic module comprising at least two pistons placed in two opposing pumping chambers situated respectively in two cylinder blocks held together parallel to the axes of displacement of the pistons and having at least one inlet port through which the fluid is sucked into the pumping chambers during the filling stroke of the pistons, then expelled from the pumping chambers during the emptying stroke of the pistons to at least one outlet port, characterized by a switching element of the valves comprising inlet and outlet transfer chambers of the pump connected by means of the inlet and outlet connection ports situated in the switching element of the valves.
Dependencies are inferred from the claim text.