Hydraulic power system

Abstract

A hydraulic power system comprises a hydraulic pump coupled to a brushless motor. The brushless motor may comprise stators having a plurality of windings and at least one outrunning rotor having a plurality of magnetic poles and optionally coupled to a drive shaft via flexible couplings which may be coaxial with the drive shaft and rotor.

1 . A hydraulic power system comprising at least one hydraulic pump coupled to at least one brushless motor, wherein said brushless motor comprises:
 at least one stator having a plurality of windings; and   at least one outrunning rotor having a plurality of magnetic pole;   said rotor being configured to rotate around said stator thereby transmitting torque to said hydraulic pump via a drive shaft.   
     
     
         2 . The system of  claim 1 , wherein said rotor is coupled to said drive shaft via at least one flexible coupling. 
     
     
         3 . The system of  claim 2 , wherein said flexible coupling is coaxial with said drive shaft and said rotor. 
     
     
         4 . The system of  claim 1  further comprising a fluid reservoir. 
     
     
         5 . The system of  claim 3  further comprising a protective sleeve configured to encompass said fluid reservoir. 
     
     
         6 . The system of  claim 1  further comprising a pump housing. 
     
     
         7 . The system of  claim 1  further comprising a motor housing. 
     
     
         8 . The system of  claim 6 , further comprising a motor housing, wherein said pump housing is contiguous with the motor housing. 
     
     
         9 . The system of  claim 1 , wherein said rotor comprises m magnetic poles, said stator comprises n windings and m magnetic sensors configured to sense said magnetic poles, and m and n equal eighteen. 
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . The system of  claim 1 , wherein said hydraulic pump is selected from a group consisting of: gear pumps, gerotor pumps, rotary vane pumps, screw pumps, bent axis pumps, axial piston pumps swashplate principle, radial piston pumps, and peristaltic pumps. 
     
     
         13 . The system of  claim 1 , wherein said hydraulic pump comprises an inlet and outlet. 
     
     
         14 . The system of  claim 13 , wherein said outlet is configured to couple with at least one item of hydraulic machinery. 
     
     
         15 . The system of  claim 14 , wherein said hydraulic machinery is selected from a group consisting of: cutters, jacks, rams, spreaders, and spreader-cutters. 
     
     
         16 . The system of  claim 1  further comprising a motor controller configured to control operation of said motor. 
     
     
         17 . The system of  claim 16 , wherein said motor controller is configured to stop operation of said motor after a predetermined time delay. 
     
     
         18 . The system of  claim 15  further comprising at least one temperature sensor configured to monitor temperature of components of said system. 
     
     
         19 . The system of  claim 18 , further comprising a motor controller configured to control operation of said motor, wherein said motor controller is configured to stop or reduce operation of said motor if the temperature exceeds or approaches a threshold value. 
     
     
         20 . The system of  claim 16  further comprising a remote control module in communication with said motor controller, said remote control module being configured to enable said motor to be controlled remotely. 
     
     
         21 . A hydraulic power system comprising:
 an outrunner comprising an outrunner housing, a rotor, and a stator;   a hydraulic reservoir;   at least one hydraulic cylinder;   a coupling, and   a hydraulic pump comprising an inlet, at least one outlet, a shaft, and a pump housing,   wherein the coupling is coaxial with positioned between and coupled to both the shaft and the rotor,   wherein the pump housing and the outrunner housings are contiguous to each other and enclosing at least the rotor, stator, coupling and shaft.   wherein the reservoir is coupled to the inlet of the pump and the cylinder are coupled to each outlet of the pump, and   whereby upon rotation of the rotor the shaft rotates and the cylinder advance.   
     
     
         22 . The system of  claim 1 , wherein the system is portable.