Piston membrane pump

Abstract

A piston membrane pump includes an intake line configured to take in a medium to be pumped, and a dynamic volume storage element arranged in the intake line.

What is claimed is: 
     
         1 - 10 . (canceled) 
     
     
         11 . A piston membrane pump comprising:
 an intake line configured to take in a medium to be pumped; and   a dynamic volume storage element arranged in the intake line.   
     
     
         12 . The piston membrane pump as recited in  claim 11 , further comprising an air pressure vessel arranged upstream of the dynamic volume storage element when viewed in a pumping direction of the medium. 
     
     
         13 . The piston membrane pump as recited in  claim 11 , wherein the dynamic volume storage element comprises a displacement body, a displacement volume of the displacement body being elastically variable. 
     
     
         14 . The piston membrane pump as recited in  claim 13 , further comprising a pressure space configured to be filled with a pressurized gas, wherein the displacement body comprises an envelope configured to be elastically deformable and to terminate the pressure space. 
     
     
         15 . The piston membrane pump as recited in  claim 14 , wherein a gas pressure in the pressure space is variable. 
     
     
         16 . The piston membrane pump as recited in  claim 15 , further comprising a display instrument configured to display the gas pressure in the pressure space. 
     
     
         17 . The piston membrane pump as recited in  claim 14 , wherein,
 the envelope comprises an envelope inside diameter and envelop end regions,   the displacement body further comprises a first end piece comprising a first end piece outside diameter, and a second end piece comprising a second end piece outside diameter, and   each of the first end piece outside diameter and the second end piece outside diameter are adapted to the envelope inside diameter so that the envelope is connectable at the envelop end regions to the first end piece and to the second end piece to provide a gas impermeable seal.   
     
     
         18 . The piston membrane pump as recited in  claim 17 , further comprising a spacer comprising a spacer outside diameter which is smaller than the envelop inside diameter, the spacer being arranged inside the envelope,
 wherein, each of the first end piece and the second end piece are configured so as to be fixedly connected to each other at a distance via the spacer.   
     
     
         19 . The piston membrane pump as recited in  claim 17 , wherein the first end piece further comprises a through passage configured to open into the pressure space, and a connection device arranged on an outside of the first end piece, the connection device being configured to connect to a gas pressure supply. 
     
     
         20 . The piston membrane pump as recited in  claim 19 , wherein the connection device comprises a check valve.