This inventor holds 1 USPTO granted patent. Top assignee: Cummins Engine Company, Inc.. Active years: 2000.
Company Filing History:
Years Active: 2000
Title: Innovations by James D. Curtis in Fuel Injector Technology
Introduction
James D. Curtis is an accomplished inventor based in Westport, IN (US). He has made significant contributions to the field of engine technology, particularly with his innovative designs that enhance the performance and reliability of fuel injectors. His work is recognized for addressing critical issues in engine design and functionality.
Latest Patents
One of James D. Curtis's notable patents is the "Fuel injector seat assembly with positive contact seal between fuel." This invention involves an assembly that includes an engine component, such as a fuel injector, which is seated against a seating surface of a cylinder head. The design features a positive seal contact at the uppermost point of contact between the injector sleeve and the seating surface of the cylinder head. This positive seal contact is crucial as it prevents coolant from the water jacket from traveling below the uppermost point of contact, thereby avoiding cavitation damage that could occur due to the entrapment of liquid between the cylinder head seating surface and the injector sleeve. In one embodiment, a raised annular ridge is formed in the seating surface of the cylinder head at the location of the uppermost point of contact, which becomes embedded in the injector sleeve. Additionally, the cylinder head includes a circular recess upwardly from the uppermost point of contact, allowing coolant to enter the recess while maintaining a separation that prevents closure under deflection due to cyclic loading on the injector.
Career Highlights
James D. Curtis is currently associated with Cummins Engine Company, Inc., where he applies his expertise in engine technology. His innovative approach has led to advancements that improve engine efficiency and durability. With a focus on practical solutions, Curtis has established himself as a key figure in the development of fuel injection systems.
Collaborations
Throughout his career, James has collaborated with talented individuals such as Jay F. Leonard and Matthew G. Leddy. These partnerships have fostered an environment of innovation and creativity, contributing to the success of their projects.
Conclusion
James D. Curtis's contributions to fuel injector technology exemplify the impact of innovative thinking in engineering. His patent for a fuel injector seat assembly showcases his commitment to enhancing engine performance and reliability. Through his work at Cummins Engine Company, Inc., he continues to influence the future of engine technology.