Esa Karru

Title: ESA KARRU: INNOVATOR IN HYDRAULIC DRILLING TECHNOLOGY

Introduction

Esa Karru, located in Tampere, Finland, is a notable inventor with a focus on innovative hydraulic drilling technology. With two patents to his name, Karru has made significant contributions to the field that enhance the efficiency and functionality of drilling machinery.

Latest Patents

Karru's latest inventions include a Hydraulic Drilling Apparatus and a Hydraulic Percussion Apparatus. The Hydraulic Drilling Apparatus features a robust design comprising a body, a cylinder, and a percussion piston that reciprocates within the cylinder. It integrates a control valve for percussion power and a motor for tool rotation, both operated independently by a single lever. Additionally, the design incorporates a hydraulically operated flushing valve, hydraulic pumps, and circuits that create a percussion and rotation system, enhancing overall performance.

The Hydraulic Percussion Apparatus similarly showcases Karru's ingenuity, consisting of a body with a reciprocating percussion piston and a distributing valve housed within a valve housing. This invention includes a hydraulic pump with channels forming a percussion circuit, alongside a gas/liquid pressure accumulator. The designed circuits enable precise control over the device's operation, with a start-and-stop valve regulating the pressure in the percussion circuit.

Career Highlights

Karru's work at Oy Tampella Ab has allowed him to further develop and refine his inventions, making him a key player in the advancements of hydraulic drilling technologies. His relentless pursuit of innovation has positioned him as a respected inventor in his field.

Collaborations

Throughout his career, Karru has collaborated with notable coworkers, including Pekka M Salmi and Hannu I Paasonen. Their combined expertise has fostered a creative environment that bolsters innovation and drives the development of cutting-edge technologies in the industry.

Conclusion

Esa Karru's contributions to hydraulic drilling technology through his patents have laid the groundwork for future innovations in the field. His work at Oy Tampella Ab, combined with collaborative efforts with skilled peers, demonstrates a commitment to advancing engineering solutions that enhance drilling operations. Karru's legacy as an inventor continues to inspire and shape the landscape of hydraulic technology.