Company Filing History:
Years Active: 2000-2001
Title: Innovations of Stanley P. Schumann
Introduction
Stanley P. Schumann is a notable inventor based in Sidney, OH (US). He has made significant contributions to the field of refrigeration technology, holding a total of 5 patents. His work primarily focuses on scroll-type compressors, which are essential in various cooling applications.
Latest Patents
One of his latest patents is a scroll machine with capacity modulation. This invention discloses a scroll-type refrigeration compressor that incorporates an efficient, reliable, and low-cost modulation system. The system employs a single actuator to switch between full and reduced capacity operation. The modulation system includes an elongated member movably supported on the non-orbiting scroll, ensuring simultaneous opening and closing of one or more unloading passages. This design avoids transient pressure imbalances between opposed compression pockets during compressor operation. In one embodiment, the elongated member is interconnected by springs and rotatably movable to effect the intended modulation. Another embodiment allows the elongated member to move generally along a radial line of the non-orbiting scroll member. Additionally, the modulation system provides reduced capacity at both startup and shutdown, enabling the use of more efficient lower starting torque motors and reducing the potential for noise-generating reverse rotation on shutdown.
Another significant patent by Schumann is an improved capacity modulation system for scroll-type compressors. This invention features a valve body of a solenoid valve assembly secured to the inner wall of the hermetic shell, with the actuating coil mounted on the outer surface. The actuating coil includes a plunger/valve member that cooperates with passages in the valve body to selectively actuate the capacity modulation arrangement using compressed fluid. This construction offers the advantage of protecting all fluid pressure lines within the hermetic shell from potential damage. Furthermore, the solenoid coil can be easily changed or replaced to accommodate different operating voltages, and the system can be tested prior to final welding of the outer shell.
Career Highlights
Stanley P. Schumann has dedicated his career to advancing refrigeration technology. He works at Copeland Corporation, where he continues to innovate and improve compressor systems. His expertise in capacity modulation has made a significant impact on the efficiency and reliability of refrigeration systems.
Collaborations
Throughout his career, Schumann has collaborated with notable colleagues, including Jeffrey Lee Berning and Frank S. Wallis. These collaborations have contributed to the development of advanced