Patents by Inventor Sang Won Cha

Sang Won Cha 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: 9957955
    Abstract: There is provided a high efficiency ocean thermal difference power generating system by using liquid-vapor ejector and motive pump comprising: an evaporator for changing transferred refrigerant liquid into refrigerant vapor with high temperature and high pressure by the thermal exchange with surface seawater; a vapor-liquid divider which is installed at the outlet part of the evaporator and divides the refrigerants to liquid-state refrigerant and vapor-state refrigerant respectively; a distributor which is installed at the inlet of the evaporator and distributes the refrigerants flowed into the evaporator to multi-paths; a turbine for generating electric power by using the high pressure refrigerant vapor transferred from the liquid-vapor divider or the evaporator; a motive pump for increasing the pressure of the refrigerant liquid distributed from the distributor or the liquid-vapor divider; a liquid-vapor ejector for mixing the low pressure refrigerant vapor which passed the turbine and the high pressure ref
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: May 1, 2018
    Assignee: Korea Institute of Ocean Science & Technology
    Inventors: Hyeon-Ju Kim, Ho-Saeng Lee, Sang-Won Cha, Young-Kwon Jung, Jung-In Yoon, Chang-Hyo Son, Seong-Hun Seol, Byeong-Hyo Ye
  • Publication number: 20160341184
    Abstract: There is provided a high efficiency ocean thermal difference power generating system by using liquid-vapor ejector and motive pump comprising: an evaporator for changing transferred refrigerant liquid into refrigerant vapor with high temperature and high pressure by the thermal exchange with surface seawater; a vapor-liquid divider which is installed at the outlet part of the evaporator and divides the refrigerants to liquid-state refrigerant and vapor-state refrigerant respectively; a distributor which is installed at the inlet of the evaporator and distributes the refrigerants flowed into the evaporator to multi-paths; a turbine for generating electric power by using the high pressure refrigerant vapor transferred from the liquid-vapor divider or the evaporator; a motive pump for increasing the pressure of the refrigerant liquid distributed from the distributor or the liquid-vapor divider; a liquid-vapor ejector for mixing the low pressure refrigerant vapor which passed the turbine and the high pressure ref
    Type: Application
    Filed: March 5, 2015
    Publication date: November 24, 2016
    Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Hyeon-Ju KIM, Ho-Saeng LEE, Sang-Won CHA, Young-Kwon JUNG, Jung-In YOON, Chang-Hyo SON, Seong-Hun SEOL, Byeong-Hyo YE
  • Patent number: 8408021
    Abstract: The present invention relates to a picture frame type indoor unit of an air conditioner for mounting a photograph or a picture on a wall. The indoor unit of an air conditioner includes a cabinet (10), a picture frame panel (30) mounted in front of the cabinet (10), and a link mechanism (200) hinged both on the cabinet (10) and the picture frame panel (30), thereby permitting convenient working in inside inspection or repair of the indoor unit even if the picture frame panel (30) is not dismounted from the cabinet (10) completely.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: April 2, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang Won Cha, Tae Jun Park
  • Publication number: 20100287966
    Abstract: The present invention relates to a picture frame type indoor unit of an air conditioner for mounting a photograph or a picture on a wall. The indoor unit of an air conditioner includes a cabinet (10), a picture frame panel (30) mounted in front of the cabinet (10), and a link mechanism (200) hinged both on the cabinet (10) and the picture frame panel (30), thereby permitting convenient working in inside inspection or repair of the indoor unit even if the picture frame panel (30) is not dismounted from the cabinet (10) completely.
    Type: Application
    Filed: November 30, 2006
    Publication date: November 18, 2010
    Inventors: Sang Won Cha, Tae Jun Park
  • Patent number: 7670414
    Abstract: Disclosed is a filter unit for an air conditioner, which is provided at an indoor unit for the air conditioner so as to purify the air discharged to a room. The filter unit includes a filter for purifying air, a filter case accommodated in the filter and having a filter gate at a side thereof for placing/withdrawing the filter, and a cover for opening/closing the filter gate.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: March 2, 2010
    Assignee: LG Electronics Inc.
    Inventors: Sang Won Cha, Hyun Hur