Oscillation piston pump

Abstract

The invention relates to an oscillating piston pump ( 1 ), in particular to an oscillating piston vacuum pump. The invention aims to create a range of pumps of this type comprising members which exhibit a different final pressure behaviour and/or a different pumping capacities. To achieve this, the range consists of several identically constructed modules ( 2 ) of an oscillating piston pump that are connected in parallel and/or in series, according to customer requirements and each module is equipped with an oscillating piston drive.

1 . Oscillating piston pump ( 1 ), in particular an oscillating piston vacuum pump, wherein it consists of several modules ( 2 ) of the same design of an oscillation piston pump which are, depending on customer requirements, connected in parallel and/or in series, each module being equipped with a drive for the oscillating piston.  
     
     
         2 . Pump according to  claim 1 , wherein the oscillating piston pump modules ( 2 ) are affixed jointly on to a rail ( 3 ).  
     
     
         3 . Pump according to  claim 2 , wherein the inlet and the outlet ( 55 ,  56 ) of the oscillating piston pump modules ( 2 ) are located in the area of one of the two face sides, where the modules ( 2 ) are affixed at this face side to the rail ( 3 ), where in the instance of modules ( 2 ) connected in parallel there is located in the rail each a joint inlet channel ( 57 ) and a joint outlet channel ( 58 ) and where one opening of the inlet channel forms the inlet ( 9 ) of the pump ( 1 ) and one opening of the outlet channel forms the outlet ( 10 ) of the pump ( 2 ).  
     
     
         4 . Pump according to  claim 2 , wherein in the rail ( 3 ) there are provided intermediate channels ( 61 ) which in the instance of series connected modules ( 2 ) join the outlet ( 56 ) of one module ( 2 ) to the inlet ( 55 ) of the next module ( 2 ).  
     
     
         5 . Pump according to  claim 2 , wherein one of the face sides of the oscillating piston pump modules ( 2 ) is each equipped with the inlet ( 55 ) and the further face sides are each equipped with the outlet ( 56 ) and where two rails ( 4 ,  5 ) are present of which one is equipped with the joint inlet channel ( 57 ) and the other with a joint outlet channel ( 58 ).  
     
     
         6 . Pump according to  claim 2 ,  3 ,  4  or  5 , wherein the rail(s) ( 3 ,  4 ,  5 ) has/have carrying functions.  
     
     
         7 . Pump according to one of the  claims 2  to  6 , wherein the rail(s) ( 3 ,  4 ,  5 ) is/are a component of a frame, a cart ( 15 ,  16 ) or alike.  
     
     
         8 . Pump according to one of the  claims 2  to  7 , wherein the rail(s) ( 3 ,  4 ,  5 ) is/are equipped with further channels ( 59 ) serving the purpose of accommodating electrical cables.  
     
     
         9 . Pump according to one of the  claims 2  to  8 , wherein the rail(s) ( 3 ,  4 ,  5 ) is/are formed by an extruded profile component.  
     
     
         10 . Pump according to one of the  claims 1  to  9 , wherein there are located in the module ( 2 ) two or more pumping stages and where these may be connected, depending on customer requirements, parallel or in series.  
     
     
         11 . Pump according to one of the above claims, wherein there is located upstream of the oscillating piston pump ( 1 ) a high-vacuum pump ( 12 ) and where the inlet of the high-vacuum pump ( 12 ) forms the inlet ( 9 ) of the pumping system.  
     
     
         12 . Pump according to  claim 10  and one of the  claims 2  to  8 , wherein the high-vacuum pump ( 12 ) is also affixed to the rail ( 3 ) or at one of the rails ( 4 ,  5 ) respectively.  
     
     
         13 . Pump according to one of the above claims, wherein all modules ( 2 ) of the oscillating piston vacuum pump ( 1 ) and the possibly present high-vacuum pump ( 12 ) are equipped with a joint power supply, display and/or control unit ( 14 ).  
     
     
         14 . Pump according to one of the above claims, wherein the modules ( 2 ) are equipped with an outer casing ( 45 ) in which there are located bores ( 51 ,  52 ) extending in parallel to the piston ( 21 ) of which one forms the inlet bore and the other the outlet bore.  
     
     
         15 . Pump according to  claim 12 , wherein the outer casing ( 45 ) is designed to be oval in shape and where each one of the bores ( 51 ,  52 ) is located in the area of the thicker wall sections.  
     
     
         16 . Method for operating a pump ( 1 ) according to one of the  claims 1  to  13 , wherein, the linear drives of the individual modules ( 2 ) can be so driven that the oscillating pistons ( 21 ) of the pump modules ( 2 ) perform in pairs an opposing motion with respect to each other.  
     
     
         17 . Method for manufacturing oscillating piston pumps ( 1 ), in particular oscillating piston vacuum pumps with different pumping capacities, wherein several oscillating piston pump modules ( 2 ) of the same design are connected in parallel and/or in series and where the number of modules connected in parallel and/or in series is so selected that the sum of their pumping capacities corresponds to the desired pumping capacity or so that the final pressure corresponds to the desired final pressure.  
     
     
         18 . Method according to  claim 17 , wherein they are mounted next or above each other to a joint ( 3 ) or to two rails ( 4 ,  5 ) and where the inlet openings ( 55 ) of the modules ( 2 ) are joined in a sealed manner to a joint inlet channel ( 57 ) and the outlet openings ( 56 ) of the modules ( 2 ) to a joint outlet channel ( 58 ).