Robert Köhli

Title: Robert Köhli: Innovator in Two-Stroke Engine Technology

Introduction

Robert Köhli is a notable inventor based in Winnenden, Germany. He has made significant contributions to the field of engine technology, particularly in the development of two-stroke engines. With a total of 3 patents to his name, Köhli's work reflects a commitment to innovation and engineering excellence.

Latest Patents

Köhli's latest patents focus on advancements in two-stroke engine design. One of his patents describes a two-stroke engine featuring a cylinder with a combustion chamber bounded by a piston. This piston drives a crankshaft that rotates within a crankcase. The crankcase connects to the combustion chamber through an overflow passage located in the lower dead center region of the piston. The engine includes an intake passage, with a carburetor forming a section of this passage. The intake passage is partially divided into an air passage and a mixture passage, with a throttle valve controlling the combustion air quantity supplied to both passages. An air-guiding element is strategically placed on the passage wall to optimize airflow in the idling position of the throttle valve.

Another patent by Köhli describes an engine with a reciprocating piston mounted in a cylinder. The piston drives a crankshaft pivotably mounted in a crankcase via a connecting rod. An inlet window for combustion air is controlled by the piston, which separates the combustion chamber from the crankcase interior. To enhance cooling of the piston and piston pin bearing, a flow-guide element is included within the crankcase to redirect incoming combustion air toward the underside of the piston base.

Career Highlights

Robert Köhli is currently employed at Andreas Stihl AG & Co. KG, a company renowned for its high-quality outdoor power equipment. His work at Stihl has allowed him to apply his innovative ideas in practical applications, contributing to the company's reputation for excellence in engineering.

Collaborations

Köhli has collaborated with notable colleagues, including Michael Grether and Stefan Kummermehr. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in engine technology.

Conclusion

Robert Köhli's contributions to two-stroke engine technology exemplify his dedication to innovation and engineering. His patents reflect a deep understanding of engine mechanics and a commitment to improving performance and efficiency. Through his work at Stihl and collaborations with fellow