Pump system

Abstract

A pump system configured to deliver drilling fluid in at least one of a driving well and a drilling well includes a pump unit, a rotary drive device configured to drive the pump unit, and a gearbox comprising a driving gear and an driven gear. The rotary drive device is operatively connected to the pump unit by the gearbox.

What is claimed is: 
     
         1 . A pump system configured to deliver drilling fluid in at least one of a driving well and a drilling well, the pump system comprising:
 a pump unit;   a rotary drive device configured to drive the pump unit; and   a gearbox comprising a driving gear and a driven gear,   
       wherein
 the rotary drive device is operatively connected to the pump unit by the gearbox. 
 
     
     
         2 . The pump system as recited in  claim 1 , wherein the rotary drive device includes a single shaft end to which the driving gear is rotationally connected. 
     
     
         3 . The pump system as recited in  claim 2 , further comprising at least one of a clutch and an elastic clutch, wherein the driving gear is connected to the single shaft end by at least one of the clutch, so as to selectively establish a rotationally fixed connection between the driving gear and the single shaft end, and by the elastic clutch, so as to establish a permanent rotationally fixed connection between the driving gear and the single shaft end. 
     
     
         4 . The pump system as recited in  claim 1 , wherein the gearbox, the driving gear and the driven gear are helical gears. 
     
     
         5 . The pump system as recited in  claim 1 , wherein the rotary drive device is arranged at least at almost a same level as the pump unit. 
     
     
         6 . The pump system as recited in  claim 5 , wherein the gearbox is arranged at least substantially horizontally. 
     
     
         7 . The pump system as recited in  claim 1 , wherein each of a shape, a size and an arrangement of the rotary drive device are selected so that a width (B) of the pump system is defined by a width (b) of the pump unit. 
     
     
         8 . The pump system as recited in  claim 1 , wherein the rotary drive device has a longer extension (L) arranged in a direction of the width (B) of the pump system. 
     
     
         9 . The pump system as recited in  claim 1 , wherein the pump unit further comprises a pump drive shaft. 
     
     
         10 . The pump system as recited in  claim 9 , wherein the pump drive shaft is not a crankshaft of the pump unit. 
     
     
         11 . The pump system according to  claim 9 , wherein the driven gear is connected to the pump drive shaft. 
     
     
         12 . The pump system as recited in  claim 9 , wherein the pump unit further comprises a crankshaft with a crankshaft gear wheel, and wherein the pump drive shaft includes a pump drive shaft gear wheel, the crankshaft gear wheel and the pump drive shaft gear wheel being configured to mesh with each other. 
     
     
         13 . The pump system as recited in  claim 9 , wherein the pump unit further comprises a housing. 
     
     
         14 . The pump system as recited in  claim 13 , wherein the pump drive shaft is configured to protrude out of the housing. 
     
     
         15 . The pump system as recited in  claim 13 , wherein the rotary drive device includes a rotary device housing, and the rotary device housing and the pump unit are at least substantially adjacent to one another. 
     
     
         16 . The pump system as recited in  claim 1 , wherein the gearbox includes an intermediate gear. 
     
     
         17 . The pump system as recited in  claim 1 , wherein the gearbox is surrounded by a gearbox housing. 
     
     
         18 . The pump system as recited in  claim 1 , wherein the gearbox includes a slip-on gear. 
     
     
         19 . The pump system as recited in  claim 1 , wherein the pump system is provided as a modular design with modules comprising the pump unit, the rotary drive device and the gearbox, each of the pump unit, the rotary drive device and the gearbox being surrounded by a housing. 
     
     
         20 . The pump system as recited in  claim 1 , wherein a single rotary drive device is provided.