Evan D Sand

Title: Innovations of Evan D Sand in Hydraulic Technology

Introduction

Evan D Sand is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of hydraulic technology, particularly through his innovative patent related to axial piston variable displacement hydraulic devices. His work focuses on enhancing the efficiency of hydraulic motors and other related devices.

Latest Patents

Evan D Sand holds a patent for "Axial piston variable displacement hydraulic devices, such as hydraulic motors, and methods of operating same." This invention introduces devices and methods aimed at improving the efficiency of axial piston hydraulic motors. The patent describes a valve cam with specified geometry that can be assembled to conventional axial piston hydraulic devices. This configuration allows for selective rotation of the valve cam relative to the distributor valves, facilitating variable piston stroke. The invention also includes an adjustable swashplate that works in conjunction with the valve cam to optimize displacement while maintaining ideal pre-compression and decompression across various operating conditions. This innovative approach effectively eliminates throttling losses associated with hydraulic motors.

Career Highlights

Evan D Sand is affiliated with the Regents of the University of Minnesota, where he continues to contribute to research and development in hydraulic technologies. His work has garnered attention for its practical applications and potential to revolutionize the efficiency of hydraulic systems.

Collaborations

Evan collaborates with Perry Y Li, a fellow researcher, to further explore advancements in hydraulic technology. Their partnership enhances the scope of their research and innovation in this critical field.

Conclusion

Evan D Sand's contributions to hydraulic technology through his innovative patent demonstrate his commitment to improving efficiency in hydraulic devices. His work not only advances the field but also sets a foundation for future innovations in hydraulic systems.