Leonard S Hummel

Title: Innovations by Leonard S. Hummel

Introduction

Leonard S. Hummel is an accomplished inventor based in Vandyne, Wisconsin. He holds a total of 3 patents that showcase his contributions to the field of internal combustion engines. His innovative designs focus on improving fuel injection systems, which are crucial for enhancing engine performance and reducing emissions.

Latest Patents

One of Hummel's notable patents is the "Cylinder wall fuel injection system for loop-scavenged, two-cycle." This invention addresses the challenges faced by multi-cylinder marine engines by implementing a low-pressure, cylinder wall fuel injection system. The design significantly reduces unburned hydrocarbons in exhaust emissions compared to traditional carbureted two-cycle engines. The fuel injectors are strategically mounted through the cylinder wall, allowing the fuel spray to contact the piston crown. This setup ensures that vaporized fuel is efficiently directed towards the spark plug electrode, minimizing the risk of unburned fuel escaping through the exhaust port.

Another significant patent is the "Auxiliary fuel supply system," which enhances the functionality of two-cycle internal combustion engines. This system includes a first fuel line that supplies fuel from the pump to a solenoid, which operates continuously during engine running. The design incorporates a metering housing that regulates fuel pressure, reducing the chances of leakage at the intake manifold. The solenoid's operation is controlled by a variable duty cycle oscillator, which responds to engine conditions such as knock and temperature.

Career Highlights

Leonard S. Hummel is associated with Brunswick Corporation, where he applies his expertise in engine technology. His work has contributed to advancements in marine engine performance and efficiency. Hummel's innovative spirit and technical knowledge have made a significant impact in the field of internal combustion engines.

Collaborations

Hummel has collaborated with notable colleagues, including Richard E. Staerzl and Norman H. Radtke. Their combined efforts have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Leonard S. Hummel's contributions to the field of internal combustion engines through his patents demonstrate his commitment to innovation and environmental sustainability. His work continues to influence the industry, paving the way for more efficient and cleaner engine technologies.