US 12,492,759 B2
Lift valve having lift drive
Jens Burmester, Grambek (DE)
Assigned to GEA Tuchenhagen GmbH, Büchen (DE)
Appl. No. 18/681,730
Filed by GEA Tuchenhagen GmbH, Büchen (DE)
PCT Filed Aug. 11, 2022, PCT No. PCT/EP2022/072503
§ 371(c)(1), (2) Date Feb. 6, 2024,
PCT Pub. No. WO2023/017106, PCT Pub. Date Feb. 16, 2023.
Claims priority of application No. 10 2021 004 172.0 (DE), filed on Aug. 13, 2021.
Prior Publication US 2024/0328534 A1, Oct. 3, 2024
Int. Cl. F16K 37/00 (2006.01); F16K 31/122 (2006.01)
CPC F16K 37/0041 (2013.01) [F16K 31/1221 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A lift valve, comprising:
a valve housing;
a stroke drive including a drive rod that can be moved along a stroke axis into a first end position and a second end position; and
a measuring apparatus coupled to the stroke drive on a side of the stroke drive facing away from the valve housing and including a first sensor, a second sensor, a first transducer arranged to follow movement of the drive rod and arranged on a sensor rod arranged in an end region of the drive rod, and a second transducer arranged on a side of the first transducer facing the drive rod and arranged to follow the movement of the drive rod, wherein the first sensor is arranged between the second sensor and the stroke drive, the first sensor is excited by the second transducer when the drive rod is in the second end position, the first sensor is accommodated in a first elongated hole, and the second sensor is accommodated in a second elongated hole.