公开(公告)号：US20240229833A9

公开(公告)日：2024-07-11

申请号：US18570880

申请日：2022-05-11

Applicant: ASIANA IDT INC.

Inventor： Sang Do Shin ,  Hoon Suk Lee

IPC: F15B15/28

CPC classification number: F15B15/2861

Abstract: The present invention provides a device for detecting the position of a piston, which includes a magnetic substance and is arranged so as to be movable inside a cylinder, the piston position detection device comprising: a first sensor for detecting the position of the piston by sensing a magnetic field generated by the magnetic substance; a second sensor for preventing false detection of the first sensor by sensing, before the first sensor, an external magnetic field; and a housing, which is mounted on the outer circumferential surface of the cylinder and accommodates the first sensor and the second sensor therein.

公开(公告)号：US20240133400A1

公开(公告)日：2024-04-25

申请号：US18570880

申请日：2022-05-10

Applicant: ASIANA IDT INC.

Inventor： Sang Do Shin ,  Hoon Suk Lee

IPC: F15B15/28

CPC classification number: F15B15/2861

Abstract: The present invention provides a device for detecting the position of a piston, which includes a magnetic substance and is arranged so as to be movable inside a cylinder, the piston position detection device comprising: a first sensor for detecting the position of the piston by sensing a magnetic field generated by the magnetic substance; a second sensor for preventing false detection of the first sensor by sensing, before the first sensor, an external magnetic field; and a housing, which is mounted on the outer circumferential surface of the cylinder and accommodates the first sensor and the second sensor therein.