公开(公告)号：US12018669B2

公开(公告)日：2024-06-25

申请号：US17670442

申请日：2022-02-12

Applicant: Lutz Pumpen GmbH

Inventor： Takumi Nasu ,  Alexander Ries ,  Andrej Getze

IPC: F04B43/073 ,  F01L25/08 ,  F04B43/02

CPC classification number: F04B43/0736 ,  F01L25/08 ,  F04B43/023

Abstract: Multiple diaphragm pumps are known in the art that are operated by compressed air and in which the valves are controlled by a slide element. The slide element is magnetically actuated without mechanical engagement involved in the actuation. This has the consequence that only a small amount of force can be applied which may not be sufficient due to static friction of the valve seal. The invention presents a hybrid solution which facilitates a mechanical actuation of a valve piston provided for valve control as well as a magnetic overcoming of a dead center that may be reached by the valve piston and the diaphragm piston that actuates the diaphragms of the multiple diaphragm pump.

公开(公告)号：US20220268267A1

公开(公告)日：2022-08-25

申请号：US17670442

申请日：2022-02-12

Applicant: Lutz Pumpen GmbH

Inventor： Takumi Nasu ,  Alexander Ries ,  Andrej Getze

IPC: F04B43/073 ,  F01L25/08

Abstract: Multiple diaphragm pumps are known in the art that are operated by compressed air and in which the valves are controlled by a slide element. The slide element is magnetically actuated without mechanical engagement involved in the actuation. This has the consequence that only a small amount of force can be applied which may not be sufficient due to static friction of the valve seal. The invention presents a hybrid solution which facilitates a mechanical actuation of a valve piston provided for valve control as well as a magnetic overcoming of a dead center that may be reached by the valve piston and the diaphragm piston that actuates the diaphragms of the multiple diaphragm pump.