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

IPC: G01L1/16 ,  F01L1/14

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.

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

IPC: G01L1/16 ,  F16K37/00

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.

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

IPC: G01L1/16 ,  F01L1/14

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.