Biolife Solutions has patented a method for optimizing the performance of a gamma free-piston Stirling cooler by varying the operating frequency of linear electric motors. By detecting the appropriate frequency for minimum power consumption or maximum cooling power, the system adjusts based on current thermal conditions. GlobalData’s report on Biolife Solutions gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Biolife Solutions, Laboratory automation robots was a key innovation area identified from patents. Biolife Solutions's grant share as of May 2024 was 27%. Grant share is based on the ratio of number of grants to total number of patents.
Variable frequency control for gamma free-piston stirling cooler
A recently granted patent (Publication Number: US11976864B2) discloses a method for controlling the input electrical power of a gamma free piston Stirling cooler. The method involves driving linear electric motors with a controllably variable drive frequency to adjust the displacer's phase lead ahead of the pistons. By decreasing the input electrical power, the cooler can operate in a temperature maintenance mode, while increasing the thermal cooling power allows it to operate in a recovery mode. The patent also details a process for detecting the operating frequency at which the electric motors consume minimum electrical input power, enabling efficient operation of the Stirling cooler in a refrigeration apparatus.
Furthermore, the patent outlines a method for detecting optimum operating frequencies for both temperature maintenance and recovery modes of the Stirling cooler. By varying the frequency of the alternating electrical voltage and current and sensing electrical power input and thermal cooling power at different frequencies, the system can determine the most efficient operating frequency. This approach allows for precise control of the cooler's performance, ensuring optimal energy consumption and cooling efficiency. The patent also includes provisions for maintaining piston amplitude, detecting temperature changes in the storage chamber, and modulating the cooler's operation based on specific temperature limits and rate of change criteria, enhancing its overall functionality and adaptability in various operating conditions.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
