David W Engelhardt

Title: Innovations by David W Engelhardt

Introduction

David W Engelhardt is an accomplished inventor based in Tucson, AZ. He has made significant contributions to the field of work machine accessories, particularly with his innovative approach to motor load protection. His work is recognized for enhancing the efficiency and safety of hydraulic systems in machinery.

Latest Patents

David holds a patent for a work machine accessory motor load protection system. This invention involves a work machine that includes a first hydraulic circuit, a second hydraulic circuit, a single electric motor, and a controller. The first hydraulic circuit is equipped with a first pump and a first valve, designed to drive a first group of hydraulic accessories. The second hydraulic circuit features a second pump and a variable pressure valve, which drives a second group of hydraulic accessories. The single electric motor is connected to drive both the first and second pumps. The controller estimates the torque of the second pump and calculates the total torque of the motor. If the total torque exceeds a threshold, the controller lowers the operating torque of at least one of the pumps. This innovation is crucial for preventing overload and ensuring the longevity of the machinery.

Career Highlights

David is currently employed at Caterpillar Inc., a leading company in the manufacturing of construction and mining equipment. His role involves developing advanced technologies that improve the performance and reliability of work machines. His expertise in hydraulic systems has been instrumental in driving innovation within the company.

Collaborations

David collaborates with Luc Anani Agbekodo, a fellow engineer at Caterpillar Inc. Together, they work on various projects aimed at enhancing the functionality and safety of work machines.

Conclusion

David W Engelhardt's contributions to the field of work machine accessories demonstrate his commitment to innovation and safety in engineering. His patent for motor load protection is a testament to his expertise and dedication to improving machinery performance.