US 12,169,032 B2
Actuator for a process plant
Manuel Hielscher, Frankfurt (DE)
Assigned to SAMSON AKTIENGESELLSCHAFT, (DE)
Appl. No. 17/918,982
Filed by SAMSON Aktiengesellschaft, Frankfurt am Main (DE)
PCT Filed Apr. 16, 2021, PCT No. PCT/EP2021/059863
§ 371(c)(1), (2) Date Oct. 14, 2022,
PCT Pub. No. WO2021/209584, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 20 2020 102 122.2 (DE), filed on Apr. 16, 2020.
Prior Publication US 2023/0235834 A1, Jul. 27, 2023
Int. Cl. F16K 31/126 (2006.01); F16K 1/48 (2006.01); F16K 1/50 (2006.01); F16K 27/08 (2006.01)
CPC F16K 31/126 (2013.01) [F16K 1/48 (2013.01); F16K 1/50 (2013.01); F16K 27/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. Actuator (10) for a process plant, comprising an actuating valve (14) and an actuating drive (12) which has an actuating drive housing (20) and a drive rod (18) mounted in the actuating drive housing (20), wherein the actuating drive housing (20) is connected to a valve housing (22) of the actuating valve (14) via a connecting housing (16), wherein the actuating valve (14) comprising a valve seat (24) and a valve member (36) which interacts with the valve seat (24) and is connected to a valve rod (38) which protrudes into the connecting housing (16), wherein a first rod coupling (44) is provided in order to transfer the driving force between the drive rod (18) and the valve rod (38), and wherein a modular unit composed of the drive rod (18), the valve rod (38) and the first rod coupling (44) is mounted movably relative to the connecting housing (16) via a rotation lock (44d, 50, 52), characterized in that a second rod coupling (46) and an adjusting rod (42) are provided, the adjusting rod (42) being provided in the region between the drive rod (18) and the valve rod (38), one rod coupling (44, 46) coupling the adjusting rod (42) to the drive rod (18) and one rod coupling (44, 46) coupling the adjusting rod (42) to the valve rod (38); and
the adjusting rod (42) has an external thread at a free end of the adjusting rod (42) that is associated with the first rod coupling (44), the first rod coupling (44) having an internal thread associated with the external thread of the adjusting rod (42), so that fine adjustment of the distance of the adjusting rod (42) with respect to the valve rod (38) can be made in the first rod coupling (44).