Stanley W Crull

Title: The Innovations of Stanley W. Crull

Introduction

Stanley W. Crull is a notable inventor based in Ames, IA (US), recognized for his contributions to hydraulic systems. He holds a total of 4 patents, showcasing his expertise in engineering and innovation.

Latest Patents

One of his latest patents is the "Hydraulic fan drive system having a non-dedicated flow source." This invention is designed for engine-driven machines, including buses, construction equipment, and agricultural machinery. The hydraulic fan drive system effectively turns a cooling fan, providing necessary airflow to cool the engine. It utilizes a proportional pressure reducing valve to control the pressure drop across the fan motor based on signals from an electronic controller. Another significant patent is the "Pressure override control," which minimizes power loss and heat generation by utilizing pump output flow for destroking a variable displacement pump. This system includes modifications to the displacement control valve, ensuring that the pump cannot be positioned in a maximum displacement position during certain system malfunctions.

Career Highlights

Throughout his career, Stanley has worked with prominent companies such as Sundstrand Corporation and Sauer-Danfoss Inc. His experience in these organizations has contributed to his development as an inventor and engineer.

Collaborations

Stanley has collaborated with notable coworkers, including Frederic W. Pollman and Donald J. MacIntosh. Their combined expertise has likely influenced his innovative work in hydraulic systems.

Conclusion

Stanley W. Crull's contributions to hydraulic technology and his innovative patents reflect his significant impact in the field of engineering. His work continues to influence the design and functionality of hydraulic systems in various applications.