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公开(公告)号：US12297847B1
公开(公告)日：2025-05-13
申请号：US18942128
申请日：2024-11-08
Applicant: Harbin Engineering University
Inventor： Yipeng Cao , Shaoran Du , Chen Liu , Yao Song , Jie Yang , Xiaochen Zhao , Jie Guo , Xinyu Zhang
Abstract: A noise-reducing and nonuniform tip clearance structure of centrifugal compressor is provided, which includes a compressor impeller body and a compressor impeller shroud. The compressor impeller shroud is circumferentially wrapped outside the compressor impeller body, and multiple impeller blade bodies are uniformly arranged in a circumferential direction of the compressor impeller body. A clearance between an impeller tip meridian line of the impeller blade body and an impeller shroud meridian line on the compressor impeller shroud is an impeller tip clearance. The impeller tip clearance gradually decreases in a direction from a leading edge to a trailing edge of the impeller blade body, and a change rate of the impeller tip clearance in the direction from the leading edge to the trailing edge of the impeller blade body also gradually decreases.
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2.发明申请公开(公告)号：US20230113870A1
公开(公告)日：2023-04-13
申请号：US17659581
申请日：2022-04-18
Applicant: Harbin Engineering University
Inventor： Jie Guo , Shengwei Zhou , Guoan Jiang , Xinyu Zhang
Abstract: Disclosed are a sensor for measuring seating force of an engine intake and exhaust valve and a measuring method. The sensor comprises a mounting boss, a force bearing element, a piezoelectric element, an annular thin-wall shell and an annular diaphragm with a T-shaped section. Meanwhile, the present disclosure also provides a measuring method by using the sensor. The sensor is simple in mechanism and convenient to use, has certain universality, and can realize the measurement of the impact load of the engine intake and exhaust valve.
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公开(公告)号：US20230110677A1
公开(公告)日：2023-04-13
申请号：US17659582
申请日：2022-04-18
Applicant: Harbin Engineering University
Inventor： Jie Guo , Shengwei Zhou , Guoan Jiang , Xinyu Zhang
Abstract: The present disclosure provides a sensor for measuring cam and tappet contact force of an engine and a measuring method. The sensor comprises a force carrying element, a force transmission element, a piezoelectric element, a force bearing element, a tappet head and a guide woodruff key. Meanwhile, the present disclosure also provides a measuring method by using the sensor. The sensor is simple in mechanism and convenient to use and can realize the measurement of the cam tappet contact force in the normal direction, the tangential direction and the axial direction of the contact surface.
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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
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.
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Patent Agency Ranking
公开(公告)号：US11821800B2
公开(公告)日：2023-11-21
申请号：US17659582
申请日：2022-04-18
Applicant: Harbin Engineering University
Inventor： Jie Guo , Shengwei Zhou , Guoan Jiang , Xinyu Zhang
CPC classification number: G01L1/16 , F01L1/146 , F01L2820/04
Abstract: The present disclosure provides a sensor for measuring cam and tappet contact force of an engine and a measuring method. The sensor comprises a force carrying element, a force transmission element, a piezoelectric element, a force bearing element, a tappet head and a guide woodruff key. Meanwhile, the present disclosure also provides a measuring method by using the sensor. The sensor is simple in mechanism and convenient to use and can realize the measurement of the cam tappet contact force in the normal direction, the tangential direction and the axial direction of the contact surface.
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公开(公告)号：US11319844B2
公开(公告)日：2022-05-03
申请号：US17129447
申请日：2020-12-21
Applicant: Harbin Engineering University
Inventor： Jie Guo , Zhuang Zhao , Wenping Zhang , Xinyu Zhang
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.
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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.
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公开(公告)号：US11215138B1
公开(公告)日：2022-01-04
申请号：US17121951
申请日：2020-12-15
Applicant: Harbin Engineering University
Inventor： Jie Guo , Xinyu Zhang , Wenping Zhang , Ye Wang
Abstract: A low-noise main bearing cap for an internal combustion engine is designed that includes a main bearing cap body, wherein the main bearing cap body is connected to an engine body main bearing seat. The main bearing cap body is provided with a vibration isolator A vibration isolation structure is provided between the main bearing cap body and the vibration isolator The main bearing cap body is connected with the vibration isolator through a connector The vibration isolation structure comprises an S-shaped structure and an oil film gap, and the vibration isolator is provided with an oil inlet passage which is communicated with the oil film gap. The present design solves the control problem of the main bearing vibration source caused by the main bearing load.
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公开(公告)号：US12276242B1
公开(公告)日：2025-04-15
申请号：US18985624
申请日：2024-12-18
Applicant: Harbin Engineering University
Inventor： Yipeng Cao , Yao Song , Chen Liu , Xiaochen Zhao , Jiaxuan Lin , Shaoran Du , Jie Yang , Jie Guo , Xinyu Zhang
Abstract: Provided is an intake bypass recirculation structure capable of silencing, including: an intake bypass recirculation structure body and a structure-conducted silencing device. An intake bypass recirculation cavity is provided on the intake bypass recirculation structure body. An inlet of the intake bypass recirculation structure and an outlet of the intake bypass recirculation structure that are provided on the intake bypass recirculation structure body are each connected to the intake bypass recirculation cavity. The structure-conducted silencing device is disposed inside the intake bypass recirculation cavity. In this application, during working, noise generated by a compressor is transmitted into the intake bypass recirculation cavity via an inlet of the intake bypass recirculation structure, and transmitted outside via the outlet of the intake bypass recirculation structure.
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