Patents by Inventor Harshal Upadhye

Harshal Upadhye 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).

  • Scroll compressor capacity modulation with solenoid mounted outside a compressor shell
    Patent number: 8840384
    Abstract: At least one bypass opening is formed in a base of a scroll member, and communicates with at least one compression chamber. The bypass opening communicates with a passage leading to a suction pressure chamber within a compressor shell. A valve includes an element electrically powered to move between a first position at which it blocks flow of refrigerant from the bypass port to the passage leading to the suction pressure chamber, and a second position at which it allows flow of refrigerant between the bypass port and the passage leading to the suction pressure chamber. A portion of the valve, which is electrically powered, is mounted outside of the compressor shell.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: September 23, 2014
    Assignee: Danfoss Scroll Technologies, LLC
    Inventors: Tapesh P. Patel, Gene Fields, Joe T. Hill, Tracy L. Milliff, Harshal Upadhye, Behzad Parastar, Ole Holst Christensen
  • SCROLL COMPRESSOR CAPACITY MODULATION WITH SOLENOID MOUNTED OUTSIDE A COMPRESSOR SHELL
    Publication number: 20110058972
    Abstract: At least one bypass opening is formed in a base of a scroll member, and communicates with at least one compression chamber. The bypass opening communicates with a passage leading to a suction pressure chamber within a compressor shell. A valve includes an element electrically powered to move between a first position at which it blocks flow of refrigerant from the bypass port to the passage leading to the suction pressure chamber, and a second position at which it allows flow of refrigerant between the bypass port and the passage leading to the suction pressure chamber. A portion of the valve, which is electrically powered, is mounted outside of the compressor shell.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 10, 2011
    Inventors: Tapesh P. Patel, Gene Fields, Joe T. Hill, Tracy L. Milliff, Harshal Upadhye, Behzad Parastar, Ole Holst Christensen
  • Scroll compressor with high side to low side oil bleed valve
    Patent number: 7547195
    Abstract: A scroll compressor is provided with an oil bleed valve that selectively communicates a discharge pressure chamber to a suction pressure chamber. The oil bleed valve controls flow of hot oil through a passage and onto a safety shutoff switch for an electric motor.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: June 16, 2009
    Assignee: Scroll Technologies
    Inventors: Harshal Upadhye, Gregory W. Hahn
  • SCROLL COMPRESSOR WITH HIGH SIDE TO LOW SIDE OIL BLEED VALVE
    Publication number: 20090081062
    Abstract: A scroll compressor is provided with an oil bleed valve that selectively communicates a discharge pressure chamber to a suction pressure chamber. The oil bleed valve controls flow of hot oil through a passage and onto a safety shutoff switch for an electric motor.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventors: Harshal Upadhye, Gregory W. Hahn