Patents by Inventor Daokun ZHANG

Daokun ZHANG 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).

  • Motor train unit feces collecting system and operating method thereof
    Patent number: 11008026
    Abstract: A motor train unit feces collecting system and an operating method thereof solve the problems of high energy consumption and complicated structure. A reciprocating motion device directly drives a piston to alternately change the positive and negative pressure in sewage disposal, without providing an intermediate tank, so the system is simple in structure and low in energy consumption. The system includes a blow-off line for connecting a toilet with a sewage tank and connected to a positive and negative pressure switching device which includes a by-pass line, the openings at both ends of the by-pass line are in communication with the blow-off line, a piston is disposed in the by-pass line and connected to a reciprocating motion device which drives the piston to move to change the positive and negative pressure condition of upper and lower regions of the by-pass line.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 18, 2021
    Assignee: SHANDONG CRRC HUATENG ENVIRONMENT CO., LTD.
    Inventors: Sheng Yan, Daokun Zhang, Kai Li, Xinyu Liu, Tengcheng Ling, Dan Liu, Chao Long
  • MOTOR TRAIN UNIT FECES COLLECTING SYSTEM AND OPERATING METHOD THEREOF
    Publication number: 20210024105
    Abstract: A motor train unit feces collecting system and an operating method thereof solve the problems of high energy consumption and complicated structure. A reciprocating motion device directly drives a piston to alternately change the positive and negative pressure in sewage disposal, without providing an intermediate tank, so the system is simple in structure and low in energy consumption. The system includes a blow-off line for connecting a toilet with a sewage tank and connected to a positive and negative pressure switching device which includes a by-pass line, the openings at both ends of the by-pass line are in communication with the blow-off line, a piston is disposed in the by-pass line and connected to a reciprocating motion device which drives the piston to move to change the positive and negative pressure condition of upper and lower regions of the by-pass line.
    Type: Application
    Filed: August 18, 2017
    Publication date: January 28, 2021
    Applicant: SHANDONG CRRC HUATENG ENVIRONMENT CO., LTD.
    Inventors: Sheng YAN, Daokun ZHANG, Kai LI, Xinyu LIU, Tengcheng LING, Dan LIU, Chao LONG