Patents by Inventor Chuan Hui Fang

Chuan Hui Fang 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: 10605264
    Abstract: A diffuser, an airflow generating apparatus, and an electrical device are provided. The airflow generating apparatus includes a motor; an impeller including blades with air passages formed therebetween; and a diffuser including diffusing vanes with diffusing channels formed therebetween. In a flow region defined between a terminating end of one diffusing vane and a starting end of another adjacent diffusing vane, an intersection line between a bottom of the diffusing channel between the two diffusing vanes and its circumferential section includes a front arcuate line segment and a subsequent straight line segment, the arcuate line segment extends curvedly, outwardly and downwardly from or from adjacent an inlet end of the diffusing channel, the straight line segment connects to the arcuate line segment and extends to an outlet end of the diffusing channel. The diffusing channel is designed to improve the operating efficiency of the airflow generating apparatus.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: March 31, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chuan Hui Fang, Feng Xue, Hong Guang Li, Huan He
  • Patent number: 10598189
    Abstract: A fan of a vacuum cleaner includes a motor, an impeller, and a diffuser. The diffuser includes a bottom plate and guide vanes disposed on the bottom plate. The guide vanes are evenly spaced and arranged along a circumferential direction of the bottom plate. Each guide vane extends obliquely from an inner edge to an outer edge of the bottom plate. An outer end of each guide vane extends beyond the outer edge of the bottom plate. Each guide vane is deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at the inner end of the guide vane. The outer end of each guide vane is deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: March 24, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Feng Liu, Chuan Hui Fang, Feng Xue, Huan He
  • Patent number: 10495102
    Abstract: An impeller includes a back cover plate, and vanes and a hub disposed on the back cover plate. The impeller further includes a sealing ring disposed on one end of the impeller away from the back cover plate. A pump using the impeller includes a volute housing and a driving device. The volute housing includes a diffusor chamber, an inlet pipe and an outlet pipe. The impeller is rotatably received in the diffusor chamber and connected to the driving device. A baffle portion is disposed on an end wall in the diffusor chamber adjacent the inlet pipe. The baffle portion engages with the sealing ring to prevent back flow of the fluid. The pump has enhanced fluid delivery efficiency. The back cover plate may further define arc strip-shaped balance holes for reducing an axial force applied to the impeller, such that rotation of the impeller is more stable.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: December 3, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Chuan Jiang Guo, Chuan Hui Fang, Xiao Liang Zhang
  • Publication number: 20190040874
    Abstract: A centrifugal blower includes an electric motor, a centrifugal impeller driven by the motor, a diffuser mounted to the motor and disposed between the motor and the centrifugal impeller, and a casing mounted to the diffuser. The centrifugal impeller is received in a chamber defined by the diffuser and the casing. the casing defines an opening facing the inlet of the centrifugal impeller. The diffuser has a plurality of passage walls, and a plurality of diffusing passages, each bounded by neighboring passage walls. The diffuser further has at least one mounting portion connected to one of the passage walls. A cross section of each of the diffusing passages is increased form an outer end to an inner end thereof and no throat is formed in each of the diffusing passages.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 7, 2019
    Inventors: Chuan Jiang GUO, Chuan Hui FANG, Feng XUE, Feng LIU, Ji Cheng PAN, Gang PAN, Yong Qiang SONG
  • Patent number: 10184490
    Abstract: A noise reduction diffuser for an electric blower has a motor holder and a rear cover fitted to the motor holder. The motor holder includes a sidewall and a bottom portion at one end of the sidewall. The other end of the sidewall has an opening for mounting an electric motor inside the sidewall. An output shaft of the motor extends through the bottom portion for driving a fan. The motor holder and the rear cover form a Helmholtz resonance cavity.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 22, 2019
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Chuan Hui Fang, Ming Ju Chen, Hong Guang Li
  • Patent number: 10145385
    Abstract: A liquid pump has a pump housing defining a pump chamber. A motor is accommodated within the pump housing and separated from the pump chamber by an end cap. An impeller disposed within the pump chamber is driven by the motor. The pump chamber has an inlet and one or more outlets. The outlets are located on a sidewall of the pump chamber and extend in a direction substantially tangential to an outer circumference of the pump chamber. Each outlet has a first end near the pump chamber, and a second end remote from the pump chamber. A cross-sectional area S1 of the first end is smaller than a cross-sectional area S2 of the second end, forming a diffuser within the outlet.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: December 4, 2018
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Chuan Jiang Guo, Chuan Hui Fang, Hay Tak Tsang
  • Patent number: 9885370
    Abstract: A diffuser includes a body and diffusion blades disposed at a circumferential edge of the body. The body includes an air inlet side and an air outlet side. Each diffusion blade has an inclined guide surface. The guide surface has a starting end at the air inlet side of the body and a terminating end adjacent the air outlet side of the body. The guide surface extends from the starting end to the terminating end along a circumferential path and has a width gradually increasing from the starting ending to the terminating end. The diffuser further includes air outlets at the terminating ends of the guide surfaces. Each air outlet fluidly connects the terminating end of a corresponding one of the guide surfaces and the air outlet side of the body. A blower employing the diffuser is also provided.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 6, 2018
    Assignee: Johnson Electric S.A.
    Inventors: Chuan Hui Fang, Feng Liu, Xiao Hong Ye, Feng Xue, Wei Sun
  • Publication number: 20170184116
    Abstract: An impeller includes a back cover plate, and vanes and a hub disposed on the back cover plate. The impeller further includes a sealing ring disposed on one end of the impeller away from the back cover plate. A pump using the impeller includes a volute housing and a driving device. The volute housing includes a diffusor chamber, an inlet pipe and an outlet pipe. The impeller is rotatably received in the diffusor chamber and connected to the driving device. A baffle portion is disposed on an end wall in the diffusor chamber adjacent the inlet pipe. The baffle portion engages with the sealing ring to prevent back flow of the fluid. The pump has enhanced fluid delivery efficiency. The back cover plate may further define arc strip-shaped balance holes for reducing an axial force applied to the impeller, such that rotation of the impeller is more stable.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 29, 2017
    Inventors: Chuan Jiang GUO, Chuan Hui FANG, Xiao Liang ZHANG
  • Publication number: 20170159669
    Abstract: An impeller, and a pump and a fluid delivery device using the pump are disclosed. An impeller includes an base plate and a plurality of long blades and a plurality of short blades disposed on the base plate. The impeller further includes a shaft mounting portion disposed on the base plate. The plurality of long blades and the plurality of short blades are alternatively arranged on the base plate and surround the shaft mounting portion. The long blades and the short blades are all arcuate blades. The above fluid delivery device, the pump and the impeller have improved efficiency.
    Type: Application
    Filed: December 5, 2016
    Publication date: June 8, 2017
    Inventors: Chuan Hui FANG, Feng XUE, Ming Ju CHEN, Feng LIU
  • Patent number: 9624945
    Abstract: An electric pump has a pump casing, a sealing plate, an impeller and a motor for driving the impeller. The pump casing has a main body. A recess is formed in the main body and with the sealing plate defines a pump chamber. A suction port is connected to the pump chamber by a suction channel and a suction passage formed in the main body. A discharge port is connected to the pump chamber by a discharge channel. The suction passage extends axially from the recess. The recess, suction passage, suction channel and discharge channel are all shaped in a manner allowing the pump casing can be molded as a monolithic structure in a single injection molding process.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: April 18, 2017
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Chuan Jiang Guo, Chuan Hui Fang, Feng Xue
  • Publication number: 20170051756
    Abstract: A diffuser, an airflow generating apparatus, and an electrical device are provided. The airflow generating apparatus includes a motor; an impeller including blades with air passages formed therebetween; and a diffuser including diffusing vanes with diffusing channels formed therebetween. In a flow region defined between a terminating end of one diffusing vane and a starting end of another adjacent diffusing vane, an intersection line between a bottom of the diffusing channel between the two diffusing vanes and its circumferential section includes a front arcuate line segment and a subsequent straight line segment, the arcuate line segment extends curvedly, outwardly and downwardly from or from adjacent an inlet end of the diffusing channel, the straight line segment connects to the arcuate line segment and extends to an outlet end of the diffusing channel. The diffusing channel is designed to improve the operating efficiency of the airflow generating apparatus.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 23, 2017
    Inventors: Chuan Hui FANG, Feng XUE, Hong Guang LI, Huan HE
  • Publication number: 20170051755
    Abstract: A fan of a vacuum cleaner includes a motor, an impeller, and a diffuser. The diffuser includes a bottom plate and guide vanes disposed on the bottom plate. The guide vanes are evenly spaced and arranged along a circumferential direction of the bottom plate. Each guide vane extends obliquely from an inner edge to an outer edge of the bottom plate. An outer end of each guide vane extends beyond the outer edge of the bottom plate. Each guide vane is deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at the inner end of the guide vane. The outer end of each guide vane is deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 23, 2017
    Inventors: Feng LIU, Chuan Hui FANG, Feng XUE, Huan HE
  • Publication number: 20160368788
    Abstract: A particle separator includes a particle separation member having a plurality of conical cavities for separating particles from unclean liquid; a fluid distribution member for distributing the unclean liquid to the cavities; a particle collection member for collecting the separated particles; and a fluid guiding member for guiding cleaned liquid to an outlet. Each cavity has a narrow open end and a wide open end. A vortex finder is disposed in each of the cavities. An entry channel for the liquid has an inlet section arranged between two adjacent cavities of the particle separation member.
    Type: Application
    Filed: May 21, 2015
    Publication date: December 22, 2016
    Inventors: Chad J. CAPARROS, Serge PESETSKY, Chuan Hui FANG
  • Publication number: 20160238033
    Abstract: A noise reduction diffuser for an electric blower has a motor holder and a rear cover fitted to the motor holder. The motor holder includes a sidewall and a bottom portion at one end of the sidewall. The other end of the sidewall has an opening for mounting an electric motor inside the sidewall. An output shaft of the motor extends through the bottom portion for driving a fan. The motor holder and the rear cover form a Helmholtz resonance cavity.
    Type: Application
    Filed: February 12, 2016
    Publication date: August 18, 2016
    Inventors: Chuan Hui FANG, Ming Ju CHEN, Hong Guang LI
  • Patent number: 9399182
    Abstract: A particle separator includes a particle separation member to separate particles from liquid; a particle collection member for collecting particles from the particle separation member; and a liquid guiding member for guiding liquid flowing from the particle separation member to an outlet. The particle separation member includes an inlet for receiving un-clean liquid, a first separation section configured for preliminarily separating particles from the liquid, and a second separation section for separating further particles from liquid flowing from the first separation section. The second separation section includes a plurality of cyclones each having a wide open end connected to the first separation section and a narrow open end connected to the particle collection member.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: July 26, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Serge Pesetsky, Chad J. Caparros, Chuan Hui Fang
  • Patent number: 9302276
    Abstract: A particle separation device includes a particle separation member having a plurality of conical cavities each having a narrow open end and a wide open end for separating particles from unclean liquid; a fluid distribution member for distributing the liquid to the cavities; a particle collection member for collecting particles; and a fluid guiding member for guiding cleaned liquid from the particle separation member to an outlet of the device. The particle collection member includes a chamber and a magnet for holding particles inside the chamber. A vortex finder is disposed in each of the cavities. The vortex finder has a skirt portion and a distal end having a reduced wall thickness.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: April 5, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Serge Pesetsky, Chad J. Caparros, Chuan Hui Fang
  • Publication number: 20150336811
    Abstract: A particle separator includes a particle separation member having a plurality of conical cavities for separating particles from unclean liquid; a fluid distribution member for distributing the unclean liquid to the cavities; a particle collection member for collecting the separated particles; and a fluid guiding member for guiding cleaned liquid to an outlet. Each cavity has a narrow open end and a wide open end. A vortex finder is disposed in each of the cavities. An entry channel for the liquid has an inlet section arranged between two adjacent cavities of the particle separation member.
    Type: Application
    Filed: May 21, 2015
    Publication date: November 26, 2015
    Inventors: Chad J. CAPARROS, Serge PESETSKY, Chuan Hui FANG
  • Publication number: 20150322964
    Abstract: A diffuser includes a body and diffusion blades disposed at a circumferential edge of the body. The body includes an air inlet side and an air outlet side. Each diffusion blade has an inclined guide surface. The guide surface has a starting end at the air inlet side of the body and a terminating end adjacent the air outlet side of the body. The guide surface extends from the starting end to the terminating end along a circumferential path and has a width gradually increasing from the starting ending to the terminating end. The diffuser further includes air outlets at the terminating ends of the guide surfaces. Each air outlet fluidly connects the terminating end of a corresponding one of the guide surfaces and the air outlet side of the body. A blower employing the diffuser is also provided.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 12, 2015
    Inventors: Chuan Hui FANG, Feng LIU, Xiao Hong YE, Feng XUE, Wei SUN
  • Patent number: 9101256
    Abstract: A centrifugal pump has an electric motor, an impeller driven by the motor and a spiral volute. The impeller has an annular base plate and a plurality of vanes arranged on the base plate. The spiral volute has an inlet, an outlet and an impeller chamber in which the impeller is disposed. The inlet extends outwardly from a top wall of the volute. The outlet extends outwardly from a side wall of the volute in the spiral direction of the volute. The spiral volute has a wrap angle between 360 to 460 degrees. A washing apparatus incorporating the centrifugal pump is also provided.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: August 11, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Chuan Jiang Guo, Chuan Hui Fang
  • Publication number: 20150093267
    Abstract: A centrifugal impeller includes a cover, a base opposite the cover and a plurality of blades. The cover has an inlet. The plurality of blades surround the inlet and are arranged between and connect the cover and the base. Inlet edges of one end of the blades adjacent the center of the impeller define a cavity in communicate with the inlet. The dimension of the cavity gradually decreases along the direction from the cover towards the base.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Chuan Jiang GUO, Chuan Hui FANG, Feng XUE, Feng LIU, Ji Cheng PAN, Gang PAN, Yong Qiang SONG