Company Filing History:
Years Active: 1990-2006
Title: Innovations of Roger B Krieger
Introduction
Roger B Krieger is a notable inventor based in Birmingham, MI (US). He has made significant contributions to the field of engine technology, holding a total of 9 patents. His work focuses on improving engine performance and reducing emissions, showcasing his commitment to innovation in automotive engineering.
Latest Patents
One of his latest patents is a "Method and apparatus for indirect measurement of engine cylinder pressure." This invention provides an apparatus for determining the pressure within the combustion chamber of an engine. The design includes a fuel injector that is seated within an opening of a cylinder head, allowing for precise measurement of combustion chamber pressure. The pressure acts upon the fuel injector, which is mounted securely to resist the force exerted by the combustion chamber pressure. A strain measuring transducer is integrated into the clamping arrangement to measure the force exerted on it, thereby enabling indirect measurement of the combustion chamber pressure.
Another significant patent is the "Diesel engine with dual-lobed intake cam for compression ratio control." This innovation features dual-lobed cams mounted on the intake camshaft of a diesel engine. These cams selectively retard the timing of the intake valve closure, which shortens the effective compression strokes of the pistons. This design reduces effective compression ratios, leading to lower combustion temperatures and reduced exhaust emissions, particularly NOx. The dual-lobed cams can also throttle admitted air during cold running conditions, enhancing in-cylinder charge temperatures to minimize hydrocarbon and white smoke emissions.
Career Highlights
Roger B Krieger is currently associated with GM Global Technology Operations LLC, where he continues to develop innovative solutions for engine technology. His extensive experience and expertise have positioned him as a key player in the automotive industry.
Collaborations
Throughout his career, Roger has collaborated with talented individuals such as Sherif Hussein El Tahry and Robert A Bolton. These partnerships have contributed to the advancement of his projects and innovations.
Conclusion
Roger B Krieger's contributions to engine technology through his patents reflect his dedication to innovation and environmental sustainability. His work continues to influence the automotive industry, paving the way for future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.