Hybrid hydraulic-electric engine

Abstract

An automobile drive engine is described having an electric motor with two hydraulic pumps fixedly mounted on the center shaft of the motor. The smaller sized hydraulic pump is mounted on one side of the electric motor and the larger pump is mounted on the other side of the electric motor. The two hydraulic pumps are connected by hydraulic hoses which allow hydraulic fluid to circulate between the two pumps. As the electric motor begins to turn, it causes the impeller blades of the larger hydraulic pump to rotate forcing hydraulic fluid through the hose thereby building pressure on the impeller blades of the smaller hydraulic pump. The smaller hydraulic pump then begins to rotate. Because of the ratio of sizes, the smaller hydraulic pump begins to rotate much faster increasing the torque and/or speed produced by the electric motor.

1 ) A hybrid hydraulic-electric engine comprising
 An electric motor,   A central shaft driven by said electric motor,   A first hydraulic pump fixedly mounted on said central shaft adjacent one side of said electric motor,   Said first hydraulic pump having a plurality of impeller blades to pump fluid within said pump through an outward orifice of said pump,   A second hydraulic pump mounted on said central shaft on the side of said electric motor remote from the first hydraulic pump,   Fluid conveyor means for transporting hydraulic fluid from said first hydraulic pump to said second hydraulic pump and   Second fluid conveying means for transporting hydraulic fluid from said second hydraulic pump to said first hydraulic pump.   
   
   
       2 ) A hybrid hydraulic-electric engine pump according to  claim 1  wherein the power ratio between the first and second hydraulic pumps is at least 10-1. 
   
   
       3 ) A hybrid hydraulic-electric hybrid engine according to  claim 2  wherein the central shaft rotates the wheels of an automobile.