Company Filing History:
Years Active: 1990-1997
Title: Innovations by Douglas E. Carr
Introduction
Douglas E. Carr is an accomplished inventor based in Chillicothe, IL (US). He has made significant contributions to the field of engine control systems, holding a total of 2 patents. His work focuses on enhancing the efficiency and safety of internal combustion engines.
Latest Patents
One of Carr's latest patents is titled "Vehicle engine control for operator compartment temperature maintenance." This innovative control system utilizes the main engine of a vehicle as a heat source to maintain the temperature of the operator compartment. The system is manually enabled based on multiple criteria, and it monitors the temperature within a control range of approximately plus or minus 10 degrees. The engine starts and runs with standard safety features, and the cycling of the engine is controlled by temperature monitor signals. This invention not only enhances safety by requiring operator attention for enablement but also prevents over-regulation through a temperature range.
Another notable patent is the "Method and apparatus for measuring detonation in an internal combustion engine." This invention employs vibration sensors placed on the engine to send signals through a filter tuned to the cavity resonance of the engine's cylinders. By detecting the peaks and valleys of the filtered signals, the magnitude of detonation can be determined. This information can be utilized by an engine control system to adjust timing in response to predetermined levels of detonation.
Career Highlights
Douglas E. Carr is currently employed at Caterpillar Inc., a leading company in the manufacturing of construction and mining equipment. His work at Caterpillar has allowed him to apply his innovative ideas to real-world applications, contributing to the advancement of engine technology.
Collaborations
Carr has collaborated with notable colleagues such as Thomas R. Sandborg and Steven R. McCoy. Their teamwork has fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies in engine control systems.
Conclusion
Douglas E. Carr's contributions to engine control technology exemplify the spirit of innovation. His patents reflect a commitment to improving safety and efficiency in internal combustion engines. Through his work at Caterpillar Inc. and collaborations with esteemed colleagues, Carr continues to make a significant impact in the field of engineering.