US 12,352,638 B2
Sensor for measuring seating force of engine intake and exhaust valve and measuring method
Jie Guo, Harbin (CN); Shengwei Zhou, Harbin (CN); Guoan Jiang, Harbin (CN); and Xinyu Zhang, Harbin (CN)
Assigned to Harbin Engineering University, Harbin (CN)
Filed by Harbin Engineering University, Harbin (CN)
Filed on Apr. 18, 2022, as Appl. No. 17/659,581.
Claims priority of application No. 202111169649.2 (CN), filed on Oct. 8, 2021.
Prior Publication US 2023/0113870 A1, Apr. 13, 2023
Int. Cl. G01L 1/16 (2006.01); F16K 37/00 (2006.01)
CPC G01L 1/16 (2013.01) [F16K 37/0041 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A sensor for measuring seating force of an engine intake and exhaust valve, comprising a mounting boss, a force bearing element, a piezoelectric element, an annular thin-wall shell and an annular diaphragm with a T-shaped section, wherein the upper portion of the mounting boss is of a hollow cylinder structure, and the lower portion of the mounting boss is of a hollow circular truncated cone structure; the force bearing element is a circular ring with a right trapezoid section; the piezoelectric element is pressed and fixed through the combined action of the annular thin-wall shell, the annular diaphragm with a T-shaped section and the force bearing element; and the mounting boss, the force bearing element, the piezoelectric element, the annular thin-wall shell and the annular diaphragm with a T-shaped section are connected with one another.