Combined electronic water and oil pump

Abstract

A combination pump comprising: a water pump having: a rotor including a stationary shaft, a stator, and an. isolation jacket, an oil pump having: a rotor that surrounds the isolation jacket of the water pump, an eccentric shaft attached to the rotor, a rotary pump in communication with the eccentric shall so that as the eccentric rotates the rotary pump is rotated and pumps a fluid; wherein the water pump rotor and the oil pump rotor are driven by a common magnet.

What is claimed is: 
     
         1 . A combination pump comprising:
 a water pump side having an inlet and an outlet;   a water pump chamber of the water pump side connected between the inlet and outlet of the water pump side;   a pump element within the water pump chamber of the water pump side for pumping fluid through the water pump chamber between the inlet and the outlet of the water pump side;   a rotor connected to the pumping element on the water pump side;   an oil pump side having an inlet and an outlet of the oil pump side;   an oil pump chamber on the oil pump side connected between the inlet and outlet of the oil pump side;   a pump element within the oil pump chamber of the oil pump side for pumping fluid through the oil pump chamber between the inlet and the outlet;   an eccentric shaft that partially surrounds the rotor of the water pump side and connects to the pump element of the oil pump side; and   a stator having at least magnetic coil that surrounds a portion of the rotor of the water pump side and a portion of the eccentric shaft, wherein the stator selectively generates a magnetic field that causes rotation of the eccentric shaft of the oil pump, wherein the rotation is transferred to the rotor of the water pump.   
     
     
         2 . The combination pump of  claim 1  further comprising an isolation jacket separating the water pump side from the oil pump side. 
     
     
         3 . The combination pump of  claim 1  further comprising an electronic controller within the oil pump side for controlling the operation of the stator and the rotation of the rotor of the water pump and the eccentric shaft of the oil pump. 
     
     
         4 . The combination pump of  claim 1  wherein the pumping element on the water pump side is an impeller connected to the rotor of the water pump side and the rotor on the water pump side rotates about a stationary shaft. 
     
     
         5 . The combination pump of  claim 1  wherein the pump element of the oil pump side is a gerotor having an outer rotor and an inner rotor that rotates within the outer rotor and said inner rotor is connected to and driven by the eccentric shaft. 
     
     
         6 . A combination pump comprising:
 a unitary pump housing;   a water pump side within the unitary pump housing having an inlet and an outlet of the water pump side formed in the unitary pump housing;   a water pump chamber of the water pump connected between the inlet and the outlet of the water pump side;   a pump element within the pump chamber of the water pump side for pumping fluid through the pump chamber between the inlet and the outlet of the water pump side;   a rotor connected to the pumping element of the water pump side;   an oil pump side within the unitary pump housing having an inlet and an outlet of the oil pump side;   an oil pump chamber of the oil pump side connected between the inlet and the outlet of the oil pump side;   a pump element within the oil pump chamber of the oil pump side for pumping fluid through the oil pump chamber between the inlet and the outlet formed in the unitary pump housing;   an eccentric shaft connected to the pump element of the oil pump side;   at first stator contained in the unitary pump housing having at least one magnetic coil surrounding a portion of the rotor of the water pump side, wherein the first stator selective generates a magnetic field that drives the rotation of the rotor of the water pump; and   a second stator having at least one magnetic coil surrounding a portion of the eccentric shaft of the oil pump side wherein the second stator selectively generates a magnetic field that drives the rotation of the eccentric shaft and the pumping of oil through the oil pump side.   
     
     
         7 . The combination pump of  claim 6  further comprising an isolation jacket extending across the unitary pump housing for separating the pump chamber from the oil pump side. 
     
     
         8 . The combination pump of  claim 7  wherein the first stator and second stator are located in the oil pump side. 
     
     
         9 . The combination pump of  claim 6  further comprising a single controller contained within the unitary pump housing and connected to both the first stator and second stator for selectively controlling the generation of the magnetic field of the first stator and the magnetic field of the second stator independently of each other. 
     
     
         10 . The combination pump of  claim 9  wherein the first stator, the second stator and the single controller are located in the oil pump side. 
     
     
         11 . The combination pump controller of  claim 6  wherein the pumping element of the water pump side is an impeller connected to the rotor and the rotor is rotatably positioned on a stationary shaft. 
     
     
         12 . The combination pump controller of  claim 6  wherein the pump element of the oil pump side is a gerotor having an inner rotor connected to the eccentric shaft rotatably positioned within an outer rotor. 
     
     
         13 . A combination pump comprising:
 a unitary pump housing;   a water pump side within the unitary pump housing having an inlet and an outlet formed in the unitary pump housing;   a water pump chamber of the water pump side connected between the inlet and the outlet of the water pump side;   an impeller within the water pump chamber of the water pump side for pumping fluid through the water pump chamber between the inlet and the outlet;   a rotor connected to the impeller of the water pump side, wherein the rotor is rotatably mounted to a stationary shaft;   an oil pump side within the unitary pump housing having an inlet and an outlet formed in the unitary pump housing;   a oil pump chamber of the oil pump side connected between the inlet and the outlet of the oil pump side;   a gerotor within the oil pump chamber of the oil pump side for pumping fluid through the oil pump chamber between the inlet and the outlet formed in the unitary pump housing;   an eccentric shaft that partially surrounds the water pump chamber of the water pump side and connects to the gerotor of the oil pump side; and   a single stator having at least one magnetic coil that surrounds a portion of the rotor of the water pump side and a portion of the eccentric shaft, wherein the stator selectively generates a magnetic field that drives both the eccentric shaft and the rotor of the water pump side.   
     
     
         14 . The controller of  claim 13  further comprising a single controller within the unitary pump housing of the oil pump side for controlling the operation of the stator. 
     
     
         15 . The combination pump of  claim 14  wherein the stator and the single controller are located in the oil pump side. 
     
     
         16 . The combination pump of  claim 15  further comprising an isolation jacket extending across the unitary pump housing for separating the pump chamber of the water pump side from the oil pump side, wherein the stator partially surrounds a portion of the isolation jacket where a portion of the rotor of the water pump side is located. 
     
     
         17 . The combination pump of  claim 13  wherein the gerotor further includes an outer rotor and an inner rotor rotatably positioned within the outer rotor, wherein the eccentric shaft is connected to and rotates the inner rotor. 
     
     
         18 . The combination pump of  claim 13 , further comprising an isolation jacket extending across the unitary pump housing for separating the pump chamber of the water pump side from the oil pump side. 
     
     
         19 . The combination pump of  claim 18  further comprising a volute forming part of the pump chamber of the water pump side. 
     
     
         20 . The combination pump of  claim 13  further comprising a volute forming part of the pump chamber of the water pump side.