Company Filing History:
Years Active: 1996-1997
Title: David C. Doddy: Innovator in Air Induction Systems
Introduction: David C. Doddy, based in Charing Cross, CA, is an accomplished inventor known for his contributions to the field of internal combustion engines. With two patents to his name, Doddy's work focuses on enhancing noise attenuation and improving engine performance.
Latest Patents: Doddy's latest innovative patents include:
1. **Adjustable Configuration Noise Attenuation Device for an Air Induction**: This device integrates a noise-attenuating mechanism with the air induction system of multicylinder internal combustion engines. It features an expansion chamber with an inlet and outlet, and two concentric tuning tubes that can be moved axially. This design allows the tubes to alternate between underlapped and overlapped configurations, optimizing noise attenuation at varying engine speeds, particularly under 2500 rpm and higher speeds.
2. **Method and Composite Resonator for Tuning an Engine Air Induction System**: In this patent, Doddy presents a method and device for tuning the air induction system of an internal combustion engine. The innovation combines an expansion chamber with a Helmholtz resonator specifically tuned to resonate at engine speeds that would otherwise lead to torque decline, ensuring effective tuning throughout the engine's operational range.
Career Highlights: David C. Doddy is currently associated with Siemens Electric Limited, where his expertise in engine technology continues to be a valuable asset. His work represents a significant step forward in reducing noise pollution from internal combustion engines and improving their overall efficiency.
Collaborations: Throughout his career, Doddy has collaborated with many industry professionals, including his coworker Stephen E. Brackett. Their joint efforts contribute to the innovative projects within Siemens Electric Limited, pushing the boundaries of what's possible in engine design and performance.
Conclusion: David C. Doddy exemplifies innovation in the automotive sector, particularly in enhancing air induction systems. His patents reflect a deep understanding of the complexities of engine acoustics and efficiency, promising advancements that benefit both engineers and consumers alike. As he continues his work at Siemens Electric Limited, the industry eagerly awaits his future contributions.