Patents by Inventor Davide BORTOLUZZI

Davide BORTOLUZZI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vapor compression refrigeration system capable of operating in transcritical mode and method of operating such a system
    Patent number: 11852393
    Abstract: A vapor compression refrigeration system has a main refrigerant circuit having a primary compressor group, a gas cooler or condenser, an expansion device, a liquid receiver, and at least one evaporator. An emergency circulation duct fluidically connects the liquid receiver to the main circuit to allow a flow of refrigerant from the liquid receiver to the gas cooler. An emergency compressor group in the emergency circulation duct is activatable when pressure inside the liquid receiver or in the duct upstream of the emergency compressor group meets or exceeds a predefined emergency pressure threshold. An uninterruptible power supply powers the emergency compressor group and expansion device during a shutdown of the refrigeration system. When pressure inside the liquid receiver or in the duct upstream of the emergency compressor group equals or exceeds the predefined emergency pressure threshold, an emergency circulation of refrigerant fluid is activated through the emergency circulation duct.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: December 26, 2023
    Assignee: EPTA S.P.A.
    Inventors: Paolo Cavalleri, Mario De Bona, Davide Bortoluzzi, Daniele Mazzola
  • VAPOR COMPRESSION REFRIGERATION SYSTEM AND METHOD OF OPERATING SUCH A SYSTEM
    Publication number: 20210254864
    Abstract: A vapor compression refrigeration system has a main refrigerant circuit having a primary compressor group, a gas cooler or condenser, an expansion device, a liquid receiver, and at least one evaporator. An emergency circulation duct fluidically connects the liquid receiver to the main circuit to allow a flow of refrigerant from the liquid receiver to the gas cooler. An emergency compressor group in the emergency circulation duct is activatable when pressure inside the liquid receiver or in the duct upstream of the emergency compressor group meets or exceeds a predefined emergency pressure threshold. An uninterruptible power supply powers the emergency compressor group and expansion device during a shutdown of the refrigeration system. When pressure inside the liquid receiver or in the duct upstream of the emergency compressor group equals or exceeds the predefined emergency pressure threshold, an emergency circulation of refrigerant fluid is activated through the emergency circulation duct.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Inventors: Paolo CAVALLERI, Mario DE BONA, Davide BORTOLUZZI, Daniele MAZZOLA