Patents by Inventor Pengda Yan

Pengda Yan 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).

  • Patent number: 10006669
    Abstract: A cryogenic refrigerator includes a refrigerator having a cylinder and a displacer movably arranged in the cylinder. The displacer is operative to provide intake of an operating gas into the cylinder and exhaust of the gas out of the cylinder. The refrigerator includes a compressor for compressing the operating gas. The compressor includes a low-pressure side to receive the gas exhausted from the cylinder and a high-pressure side to discharge the gas compressed in the compressor into the cylinder. The refrigerator includes a medium-pressure buffer volume connected to a high-pressure side or a low-pressure side of the compressor. The compressor adjusts a pressure of the buffer volume. The buffer volume is also connected to the cylinder.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: June 26, 2018
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Zui Ri, Pengda Yan
  • Publication number: 20130285663
    Abstract: A cryogenic refrigerator includes a refrigerator having a cylinder and a displacer movably arranged in the cylinder. The displacer is operative to provide intake of an operating gas into the cylinder and exhaust of the gas out of the cylinder. The refrigerator includes a compressor for compressing the operating gas. The compressor includes a low-pressure side to receive the gas exhausted from the cylinder and a high-pressure side to discharge the gas compressed in the compressor into the cylinder. The refrigerator includes a medium-pressure buffer volume connected to a high-pressure side or a low-pressure side of the compressor. The compressor adjusts a pressure of the buffer volume. The buffer volume is also connected to the cylinder.
    Type: Application
    Filed: June 14, 2010
    Publication date: October 31, 2013
    Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Zui Ri, Pengda Yan
  • Patent number: 7600385
    Abstract: A pulse tube cryogenic cooler, includes a cold storage device cartridge whose high temperature end is connected to a pressure change source; a pulse tube whose low temperature end is connected to a low temperature end of the cold storage device cartridge via a stage member; a phase adjusting mechanism connected to a high temperature end of the pulse tube; a flange where the phase adjusting mechanism is provided; and a cold storage device cylinder provided between the flange and the stage member, the cold storage device receiving the cold storage device cartridge.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: October 13, 2009
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Pengda Yan
  • Publication number: 20070119190
    Abstract: A pulse tube cryogenic cooler, includes a cold storage device cartridge whose high temperature end is connected to a pressure change source; a pulse tube whose low temperature end is connected to a low temperature end of the cold storage device cartridge via a stage member; a phase adjusting mechanism connected to a high temperature end of the pulse tube; a flange where the phase adjusting mechanism is provided; and a cold storage device cylinder provided between the flange and the stage member, the cold storage device receiving the cold storage device cartridge.
    Type: Application
    Filed: September 26, 2006
    Publication date: May 31, 2007
    Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Pengda Yan