Schaeffler Technologies Ag & Co .kg

Andre Vazquez

Craig Hooker

Michael Conlin

Michael White

Eric Ovendorf

A compact power steering system is suitable for small vehicles. A torque sensor on a steering shaft detects operator intention to turn. In response, a motor provides torque to assistance in rotating the steering shaft. A strain wave gear set multiplies the motor torque. A coupler having a torsional isolator links the gearbox output to the steering shaft.

Compact power steering system

A pumping system for fracking fluid is designed to provide nearly constant flow rate. The pumping system includes a set of linear actuator pumping units, each driven by at least one electric motor. Each pumping unit includes a hollow threaded shaft driven by the linear actuator, two hollow cylinders fixed to an interior of the hollow shaft, and hollow pistons in each of the hollow cylinders. The hollow cylinders and hollow pistons form two pumping chambers. A first pumping chamber expels fluid when the linear actuator is moving in a first direction and a second pumping chamber that expels fluid when the linear actuator is moving in an opposite direction. The speeds of the actuators are coordinated such that a total flow rate of the pumping system is substantially constant.

Co-axial inverted piston linear actuator pumping system

A pumping system for fracking fluid is designed to provide nearly constant flow rate. The pumping system includes a set of linear actuator pumping units, each driven by an electric motor. Each pumping unit includes a first set of pumping chambers that expel fluid when the linear actuator is moving in a first direction and a second set of pumping chambers that expel fluid when the linear actuator is moving in an opposite direction. The speeds of the actuators are coordinated such that a total flow rate of the pumping system is substantially constant.

Electric off-axis opposing piston linear actuator pumping system

A pumping system utilizes a linear actuator to move a shaft attached to two pistons within cylinders to pump a working fluid. A housing is designed with coolant passageways and one-way valves such that movement of the shaft also pumps coolant past cooling fins and over a motor. The shaft is formed of several sections joined by couplers which slide within a bore of the housing. The couplers have a non-round shape and the bore has a complimentary non-round cross section such that rotation of the shaft is prevented.

Linear actuator pumping system

An actuator assembly is disclosed herein. The assembly includes a motor shaft; support; harmonic drive connected to the motor shaft that includes an output connected to a drive shaft defining a first sun gear; drive mechanism; and actuator arm. The drive mechanism includes a first gear set and a second gear set. The first gear set has a first carrier including a second sun gear. The first carrier supports a first plurality of planetary gears that engage both the first sun gear and a first ring gear rotationally fixed to the support. The second gear set has a second carrier fixed to the support. The second carrier supports a second plurality of planetary gears that engage both the second sun gear and a second ring gear. The actuator arm is connected to the second ring gear such that the actuator arm is rotationally driven by the motor shaft.

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Fort Mill, SC, United States of America

Andre Vazquez