Grey C Boyce-Erickson

Title: Grey C. Boyce-Erickson and Pressure-Shifted Valve Timing

Introduction

Grey C. Boyce-Erickson is an inventor associated with the Regents of the University of Minnesota. Her work includes a patent for a hydraulic pump-motor design that adjusts valve timing in response to pressure differences.

Latest Patents

Boyce-Erickson is named on 1 patent, titled “Pressure Shifted Valve Timing.” The invention describes a hydraulic pump-motor with a cylinder block containing fluid chambers and pistons, alongside a cam that drives piston movement as it rotates relative to the chambers. A fixed valve-area profile controls fluid flow between the chambers and two ports. A timing adjustment actuator changes the profile’s angular orientation relative to the cam based on the pressure differential between the ports.

Career Highlights

The patent reflects work on coordinating valve timing with operating pressure in a hydraulic pump-motor. The disclosed adjustment mechanism links the pressure difference between the ports to the orientation of the valve-area profile.

Collaborations

Boyce-Erickson’s patent is associated with the Regents of the University of Minnesota. James Donald Van De Ven and Thomas Richard Chase are identified as her coworkers.

Conclusion

Grey C. Boyce-Erickson’s patented work focuses on pressure-responsive valve timing for hydraulic pump-motors, connecting her invention to the University of Minnesota.