Patents by Inventor Chikara Makino

Chikara Makino 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).

  • SUBMERSIBLE MOTOR PUMP, MOTOR PUMP, AND TANDEM MECHANICAL SEAL
    Publication number: 20130285330
    Abstract: A submersible motor pump includes a water jacket having a circulation passage of a coolant, a centrifugal impeller for circulating the coolant, a suction passage configured to provide fluid communication between the circulation passage and a fluid inlet of the centrifugal impeller, and a discharge passage configured to provide fluid communication between a fluid outlet of the centrifugal impeller and the circulation passage. The discharge passage includes a heat-exchange passage formed by two wall surfaces, one of which is constituted by a member which contacts a liquid conveyed by a main impeller. The heat-exchange passage has a circular shape extending radially outwardly from the fluid outlet of the centrifugal impeller. The heat-exchange passage includes at least one axial passage section having a length component in an axial direction of the rotational shaft.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 31, 2013
    Inventors: Junya KAWABATA, Chikara MAKINO, Shunichi AIYOSHIZAWA
  • Submersible motor pump, motor pump, and tandem mechanical seal
    Patent number: 8491277
    Abstract: A submersible motor pump includes a water jacket having a circulation passage of a coolant, a centrifugal impeller for circulating the coolant, a suction passage configured to provide fluid communication between the circulation passage and a fluid inlet of the centrifugal impeller, and a discharge passage configured to provide fluid communication between a fluid outlet of the centrifugal impeller and the circulation passage. The discharge passage includes a heat-exchange passage formed by two wall surfaces, one of which is constituted by a member which contacts a liquid conveyed by a main impeller. The heat-exchange passage has a circular shape extending radially outwardly from the fluid outlet of the centrifugal impeller. The heat-exchange passage includes at least one axial passage section having a length component in an axial direction of the rotational shaft.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: July 23, 2013
    Assignee: Ebara Corporation
    Inventors: Junya Kawabata, Chikara Makino, Shunichi Aiyoshizawa
  • SUBMERSIBLE MOTOR PUMP, MOTOR PUMP, AND TANDEM MECHANICAL SEAL
    Publication number: 20110200469
    Abstract: A submersible motor pump includes a water jacket having a circulation passage of a coolant, a centrifugal impeller for circulating the coolant, a suction passage configured to provide fluid communication between the circulation passage and a fluid inlet of the centrifugal impeller, and a discharge passage configured to provide fluid communication between a fluid outlet of the centrifugal impeller and the circulation passage. The discharge passage includes a heat-exchange passage formed by two wall surfaces, one of which is constituted by a member which contacts a liquid conveyed by a main impeller. The heat-exchange passage has a circular shape extending radially outwardly from the fluid outlet of the centrifugal impeller. The heat-exchange passage includes at least one axial passage section having a length component in an axial direction of the rotational shaft.
    Type: Application
    Filed: August 20, 2010
    Publication date: August 18, 2011
    Inventors: Junya Kawabata, Chikara Makino, Shunichi Aiyoshizawa