John M Janssen

Title: Innovations by John M. Janssen

Introduction

John M. Janssen is a notable inventor based in Columbus, IN (US). He has made significant contributions to the field of engineering, particularly in hydraulic systems and internal combustion engines. With a total of 2 patents, his work reflects a commitment to advancing technology and improving efficiency in various applications.

Latest Patents

One of Janssen's latest patents is the "Dual-pressure hydraulic valve-actuation system." This innovative system and method allow for hydraulic actuation of poppet valves. The poppet valve is opened by applying hydraulic pressure to a piston and is closed by the action of a mechanical spring. The hydraulic pressure can come from either a high-pressure source or a low-pressure source, with the latter being higher than ambient pressure. The application of hydraulic pressure is managed by a pressure control device that responds to signals from an electronic controller. This design minimizes the power required to actuate the valve by utilizing valve inertia effectively.

Another significant patent is the "Cooled exhaust gas recirculation system with load and ambient bypasses." This system is designed for EGR induction in supercharged or turbocharged internal combustion engines. It features EGR cooling achieved through jacket water coolers and/or an air-to-air aftercooler. The EGR induction can occur via low-pressure (ambient) induction or through venturi or passive pump induction into the pressurized intake. The system also includes mechanisms to bypass the EGR cooler, reducing condensation and fouling while providing warmer air to minimize hydrocarbon production during light load and cold ambient conditions.

Career Highlights

John M. Janssen is currently employed at Cummins Engine Company, Inc., where he continues to innovate and develop advanced technologies. His work at Cummins has allowed him to apply his expertise in hydraulic systems and engine design, contributing to the company's reputation for excellence in the industry.

Collaborations

Throughout his career, Janssen has collaborated with talented individuals such as Rod Radovanovic and Todd A. Sheridan. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

John M. Janssen's contributions to engineering through his patents and work at Cummins Engine Company, Inc. highlight his dedication to innovation. His advancements in hydraulic systems and internal combustion engines demonstrate the impact of his work on the