Company Filing History:
Years Active: 2020-2021
Title: David P Holzapfel: Innovator in Gas Turbine Technology
Introduction
David P Holzapfel is a notable inventor based in Charlotte, NC (US), recognized for his contributions to gas turbine technology. He holds 2 patents that showcase his innovative approach to improving combustion systems in gas turbine engines. His work has significantly impacted the efficiency and environmental performance of these systems.
Latest Patents
Holzapfel's latest patents include the W501D5/D5A DF42 combustion system and a cross ignition flame duct. The W501D5/D5A DF42 combustion system introduces an improved combustion section for gas turbine engines. This invention features a fuel nozzle designed to enhance injection patterns of oil fuel and cooling water, leading to better control of combustion gas temperature and reduced NOx emissions. Additionally, it eliminates the impingement of cooling water on the combustor walls. The new combustor design incorporates a plate-fin structure that enhances cooling efficiency and extends component life.
The cross ignition flame duct patent addresses flameout conditions within gas turbines by connecting adjacent combustors. This duct features a slip joint that allows flexibility during turbine operation, preventing damaging thermal and mechanical stresses. The design includes cooling chambers that are supplied with cooling fluids, ensuring optimal performance and longevity of the components.
Career Highlights
Throughout his career, Holzapfel has worked with prominent companies such as Siemens Energy, Inc. and Siemens Aktiengesellschaft. His experience in these organizations has allowed him to develop and refine his innovative ideas in gas turbine technology.
Collaborations
Holzapfel has collaborated with notable professionals in the field, including Charalambos Polyzopoulos and Richard L Thackway. These collaborations have contributed to the advancement of technology in gas turbines.
Conclusion
David P Holzapfel is a distinguished inventor whose work in gas turbine technology has led to significant advancements in efficiency and environmental performance. His patents reflect a commitment to innovation and excellence in engineering.