Company Filing History:
Years Active: 2022-2024
Title: Innovations by Douglas Crane in Thermoelectric Technology
Introduction
Douglas Crane is an accomplished inventor based in El Cerrito, California. He has made significant contributions to the field of thermoelectric technology, holding a total of four patents. His work focuses on enhancing heat pump systems and thermoelectric devices, showcasing his innovative approach to energy efficiency.
Latest Patents
One of Douglas Crane's latest patents is for thermoelectric enhanced hybrid heat pump systems. This invention involves a compressor that increases the pressure of refrigerant within tubing. A first heat exchanger, located downstream of the compressor, changes the enthalpy of the first fluid flow through heat exchange with the refrigerant. Additionally, a second heat exchanger alters the enthalpy of a second fluid flow through similar heat exchange processes. A thermoelectric device, positioned downstream of the first heat exchanger, reduces the refrigerant temperature. Expansion valves are strategically placed downstream of the thermoelectric device and first heat exchanger, respectively, to expand the refrigerant and reduce its pressure while conserving enthalpy. The system includes at least one valve that reverses refrigerant flow within the tubing without altering compressor operation. A control system is implemented to manage the thermoelectric device and valves, allowing the heat pump system to switch between heating and cooling modes.
Another notable patent by Crane involves thermoelectric elements and devices with enhanced maximum temperature differences based on spatially varying distributed transport properties. This thermoelectric element features a cold end, a hot end, and a p-type or n-type material that spans the length between the two ends. The material exhibits an intrinsic Seebeck coefficient, electrical resistivity, and thermal conductivity, with each property generally increasing from the cold end to the hot end. This innovation allows for the creation of single-stage thermoelectric devices that provide enhanced maximum temperature differences, which can be combined to form multi-stage devices for even greater efficiency.
Career Highlights
Douglas Crane has dedicated his career to advancing thermoelectric technology. His work at Dtp Thermoelectrics LLC has positioned him as a leader in the field, where he continues to innovate and develop new solutions for energy efficiency.
Collaborations
Douglas collaborates with Lon Edward Bell, contributing to the development of cutting-edge thermoelectric technologies.
Conclusion
Douglas Crane's innovative patents and contributions to thermoelectric technology demonstrate his commitment to
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