公开(公告)号：US20210199030A1

公开(公告)日：2021-07-01

申请号：US17129447

申请日：2020-12-21

Applicant: Harbin Engineering University

Inventor： Jie Guo ,  Zhuang Zhao ,  Wenping Zhang ,  Xinyu Zhang

IPC: F01L9/10 ,  F01L9/40 ,  F15B11/08 ,  F15B1/02 ,  F15B21/041

Abstract: A fully variable valve train with a rotary plunger for an internal combustion engine. A motor actuates a high-pressure oil injection pump; when a timing driven electromagnetic valve connected to an oil inlet is opened, high-pressure oil enters a hydraulic cylinder; and when the force applied to a plunger by the hydraulic oil is larger than the force of a valve returning spring, the plunger is pushed to move down, so that a valve is opened. When the valve is required to be return, the timing driven electromagnetic valve connected to the oil inlet is closed, and the timing driven electromagnetic valve connected to the oil inlet is opened; the valve moves up under the action of the valve spring, pushing the plunger to move up and thereby discharging the low-pressure oil out of the hydraulic cylinder, then the plunger and the valve return to the initial positions.

公开(公告)号：US20210197942A1

公开(公告)日：2021-07-01

申请号：US17038990

申请日：2020-09-30

Applicant: HARBIN ENGINEERING UNIVERSITY

Inventor： JIANHUI ZHAO ,  XIANGDONG LU

IPC: B63H20/10 ,  B63H20/00 ,  F02B61/04 ,  G06N7/00

Abstract: An objective of the disclosure is to provide a simulation method for a two-stage plunger pressurized common rail fuel system of a marine low-speed engine. The method includes: first setting initial status parameters, such as a control step of a system model, a total time of a calculation process, and structure parameters and pressures of components; and then establishing a mathematical model of a fuel booster unit, a mathematical model of a high-pressure fuel pipe and a mathematical model of a fuel injector based on a MATLAB simulation platform, and connecting input and output parameters of the models to realize data transfer between the models. By considering one-dimensional (1D) spatial fluctuations in the high-pressure fuel pipe, the disclosure establishes a high-precision model of the fuel system, which provides an effective method for designing and calculating detailed pressures in the common rail fuel system.

公开(公告)号：US20250123193A1

公开(公告)日：2025-04-17

申请号：US18794344

申请日：2024-08-05

Applicant: Harbin Engineering University

Inventor： Zhixun YANG ,  Yucheng LU ,  Yandong MAO ,  Hualin WANG ,  Jun YAN ,  Xu YIN ,  Gang WANG ,  Maoyan YAN ,  Weixuan XIE ,  Qi LE ,  Qingzhen LU ,  Hailong LU ,  Peng CAO ,  Geng TIAN ,  Yaohua FAN ,  Jinlong CHEN

IPC: G01N3/32

Abstract: Provided are a vertical fatigue test device for a dynamic submarine cable based on a topology optimization design framework, and a method thereof. The device includes a bending table, a main framework, the dynamic submarine cable, a connecting hinge, a supporting frame, a bottom plate, and a tension actuator; the bending table is mounted on an upper plate at a top of the main framework, and the main framework, the supporting frame, and the tension actuator are mounted on the bottom plate; an upper end of the dynamic submarine cable is connected with the bending table through a clamping mechanism; each of a left end and a right end of the bending table is connected with a bending actuator; the bending actuators are connected to the upper plate and are configured to achieve reciprocating swinging of the bending table.

公开(公告)号：US12196898B2

公开(公告)日：2025-01-14

申请号：US18150159

申请日：2023-01-04

Applicant: Institute of Radiation Medicine Chinese Academy of Medical Sciences ,  Tianjin Huafang Technology Co., Ltd. ,  Harbin Engineering University, Yantai Research Institute ,  Tianjin Eco-Environmental Monitoring Center

Inventor： Qiang Liu ,  Zhenhua Lin ,  Jinhan Wang ,  Kunliang Yao ,  Yudong Luo ,  Sheng Wu ,  Yongjie Wang ,  Jianzheng Gao ,  Ming Cui

IPC: G01T1/24

Abstract: A signal processing system and method for a radiation detector based on a metal oxide semiconductor (MOS) transistor are disclosed. The signal processing system includes a power supply generation module, an analog signal processing module, and a digital signal acquiring-processing module. The power supply generation module provides a novel power supply method, and converts a positive high voltage power supply into a negative high voltage power supply to supply power to a last dynode of a photomultiplier tube (PMT). The analog signal processing module converts a negative current pulse signal into a voltage difference signal. The digital signal acquiring-processing module acquires a signal of the analog signal processing module, and converts the signal into a digital signal for identification.

公开(公告)号：US12117365B1

公开(公告)日：2024-10-15

申请号：US18749607

申请日：2024-06-20

Applicant: Harbin Engineering University

Inventor： Bin Zhao ,  Sheng Lv ,  Wanyou Li ,  Xiqun Lu ,  Xuan Ma ,  Xiujiang Shi ,  Zhijun Shuai ,  Yibin Guo ,  Donghua Wang ,  Hanzhang Xu ,  Hongliang Li ,  Lieyi Dong

IPC: G01M13/04 ,  B63B71/10

CPC classification number: G01M13/04 ,  B63B71/10

Abstract: The present disclosure provides a lubrication analysis method for a stern bearing based on magnetic-hydraulic composite support coupling, including: performing structural deformation analysis on a stern bearing on the basis of a magnetic support analysis result and a lubrication support analysis result to obtain a structural deformation amount, correcting a water film thickness, repeating lubrication and interface characteristics analysis to obtain water film pressures before and after correcting, comparing the water film pressures to determine whether convergence occurs, solving for a load carrying capacity of the stern bearing on the basis of the analysis result if the convergence occurs, determining whether the load carrying capacity is balanced with an input load, and calculating a bearing wear depth of the stern bearing on the basis of a contact force of a micro-convex body if the load carrying capacity is balanced with the input load.

公开(公告)号：US12104908B2

公开(公告)日：2024-10-01

申请号：US17843451

申请日：2022-06-17

Applicant: Harbin Engineering University

Inventor： Yuxin Zhao ,  Bo Xu ,  Yu Guo ,  Lei Wu ,  Junmiao Hu ,  Chong Chen ,  Lianzhao Wang ,  Shengxin Li ,  Xiaoyu Wang ,  Zhaoyang Wang

IPC: G01C21/16

CPC classification number: G01C21/1652

Abstract: The disclosure belongs to the technical field of integrated navigation under non-ideal conditions, and in particular relates to a robust filtering method for integrated navigation based on a statistical similarity measure (SSM). In view of the situation that there are normal beam measurement information of the DVL and beam measurement information with a large error simultaneously in a SINS/DVL tightly integrated system, and aiming at the problem that the existing robust filters of an integrated navigation system process the measurement information in a rough manner and are likely to lead to loss of normal measurement information, the disclosure proposes a novel robust filtering method based on decomposition of multi-dimensional measurement equations and the SSM. The disclosure introduces the SSM theory while decomposing the multi-dimensional measurement equations of the SINS/DVL tightly integrated navigation system, and assists the measurement noise variance of each beam to complete respective adaptive update in case of a large measurement error, finally ensuring independence of processing of the measurement information of each beam. The disclosure can be used in the field of integrated navigation of underwater vehicles under non-ideal conditions.

公开(公告)号：US20240230472A1

公开(公告)日：2024-07-11

申请号：US18407474

申请日：2024-01-09

Applicant: HARBIN ENGINEERING UNIVERSITY

Inventor： Ningbo ZHAO ,  Shaowen LUO ,  Jihao SUN ,  Hongtao ZHENG ,  Honglei YANG ,  Ren YANG ,  Shilin YAN ,  Fuquan DENG

IPC: G01M15/14 ,  G01M15/02

CPC classification number: G01M15/14 ,  G01M15/02

Abstract: A device for measuring a wall surface cooling characteristic of a gas turbine combustor and a modeling method thereof are provided. The device includes a hot flow inlet section, a cold flow inlet section, and a gas discharge section, where the cold flow inlet section is communicated with an experimental section; the cooling structure model is a flat plate structure; a tail end of the experimental section is provided with a thermocouple threading seat; the gas discharge section is provided with a laser injection window; and the experimental section is provided with an infrared thermal imaging measurement window and a visual observation window. The modeling method includes: modeling the wall surface of the gas turbine combustor into the flat plate structure; determining a pressure, a temperature, and a velocity on a hot flow side of the device; and determining a material and a thickness of the cooling structure model.

公开(公告)号：US11946485B2

公开(公告)日：2024-04-02

申请号：US18449065

申请日：2023-08-14

Applicant: Harbin Engineering University

Inventor： Chen Liu ,  Zequn Ma ,  Yipeng Cao ,  Runze Zhang ,  Xinyu Zhang ,  Wenping Zhang ,  Jie Yang ,  Changhong Sun ,  Jie Guo ,  Xiaochen Zhao ,  Gongmin Liu

IPC: F04D29/42 ,  F04D29/68

CPC classification number: F04D29/4206 ,  F04D29/685 ,  F05D2220/40

Abstract: Some embodiments of the disclosure provide an air intake bypass recirculation structure with adjustable air entraining amount and controllable broadband noise which includes main body of the air intake bypass recirculation structure and an air entraining amount adjusting structure. In some examples, an air intake bypass recirculation cavity is formed in the main body of the air intake bypass recirculation structure. An air inlet of an air intake pipe and an air outlet of the air intake pipe are formed in two ends of the main body of the air intake bypass recirculation structure respectively. An airflow inlet of the air intake bypass recirculation structure and an airflow outlet of the air intake bypass recirculation structure are formed in the inner side of the main body of the air intake bypass recirculation structure. The air entraining amount adjusting structure is arranged in the air intake bypass recirculation cavity.

公开(公告)号：US11925906B1

公开(公告)日：2024-03-12

申请号：US18380211

申请日：2023-10-16

Applicant: Harbin Engineering University

Inventor： Jun Wang ,  Bingtao Zhang ,  Hongsen Zhang ,  Qi Liu ,  Jing Yu ,  Jiahui Zhu ,  Jingyuan Liu ,  Rongrong Chen

IPC: B01D69/10 ,  B08B3/08 ,  D02J3/02 ,  D02J3/14 ,  D06B3/10 ,  D06B3/34

CPC classification number: B01D69/105 ,  B01D69/108 ,  B08B3/08 ,  D02J3/02 ,  D02J3/14 ,  D06B3/105 ,  D06B3/345 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/42 ,  B01D2325/54

Abstract: A preparation method and a device for a seawater desalination-seawater extraction uranium membrane lining are provided. The preparation method is as follow: the lining is configured as a finished product for standby through the following process, including cleaning, drying, restoration of circular, generating burrs, fixing the length of burrs; the device includes the first module, the second module, the third module, the fourth module and the fifth module. The present invention has the advantages of simple operation, short time, low cost and obvious treatment effect, the bonding strength between the separation function layer and the lining is enhanced, and the separation function layer is not easy to fall off, the physical damage resistance is greatly increased, it is not easy to fall off and the initial bubble point pressure of the prepared enhanced film is high.

公开(公告)号：US20240077626A1

公开(公告)日：2024-03-07

申请号：US18150159

申请日：2023-01-04

Applicant: Institute of Radiation Medicine Chinese Academy of Medical Sciences ,  Tianjin Huafang Technology Co., Ltd. ,  Harbin Engineering University, Yantai Research Institute ,  Tianjin Eco-Environmental Monitoring Center

Inventor： Qiang Liu ,  Zhenhua Lin ,  Jinhan Wang ,  Kunliang Yao ,  Yudong Luo ,  Sheng Wu ,  Yongjie Wang ,  Jianzheng Gao ,  Ming Cui

IPC: G01T1/24

CPC classification number: G01T1/247

Abstract: A signal processing system and method for a radiation detector based on a metal oxide semiconductor (MOS) transistor are disclosed. The signal processing system includes a power supply generation module, an analog signal processing module, and a digital signal acquiring-processing module. The power supply generation module provides a novel power supply method, and converts a positive high voltage power supply into a negative high voltage power supply to supply power to a last dynode of a photomultiplier tube (PMT). The analog signal processing module converts a negative current pulse signal into a voltage difference signal. The digital signal acquiring-processing module acquires a signal of the analog signal processing module, and converts the signal into a digital signal for identification.