Location History:
- Holland, MI (US) (2004)
- Holland, MO (US) (2005)
Company Filing History:
Years Active: 2004-2005
Title: Innovations of John Henry Boyd
Introduction
John Henry Boyd is an accomplished inventor based in Holland, MI (US). He has made significant contributions to the field of linear motors, holding a total of 3 patents. His work focuses on improving the design and control strategies of linear motors, which are essential in various applications.
Latest Patents
One of his latest patents involves an improved design of a linear motor. This invention provides a more efficient control strategy, allowing for a shortened stator. The armature magnets are designed to reciprocate to a greater maximum displacement compared to conventional linear motors. The control strategy minimizes the need for external sensors, enhancing operational efficiency. The linear motor operates at its resonant frequency, which ensures optimal performance. A critical aspect of this invention is the determination of maximum current based on the resonant frequency and the evaporating temperature/pressure of the vapor entering the compressor. This current limitation is crucial to control maximum displacement and prevent damage.
Another notable patent by Boyd describes an electric linear motor designed for driving a reciprocating load. This motor includes a stator, a coil, an armature, and a commutation circuit. The stator features a magnetically permeable core with an air gap. The coil is wound around a portion of the stator and energized with a non-constant voltage, producing a non-constant magnetic flux. The armature supports a permanent magnet, which interacts with the magnetic field and the non-constant flux to generate force. This innovative design allows the armature to reciprocate effectively with respect to the stator.
Career Highlights
John Henry Boyd is currently employed at Fisher & Paykel Limited, where he continues to develop innovative technologies. His work has significantly impacted the field of linear motors, showcasing his expertise and dedication to advancing engineering solutions.
Collaborations
Boyd collaborates with Gerald David Duncan, contributing to the development of cutting-edge technologies in their field.
Conclusion
John Henry Boyd's contributions to linear motor technology demonstrate his innovative spirit and commitment to engineering excellence. His patents reflect a deep understanding of the mechanics involved and a desire to improve existing technologies.