公开(公告)号：US11953115B2

公开(公告)日：2024-04-09

申请号：US17430059

申请日：2020-02-11

Applicant: BELIMO HOLDING AG

Inventor： Paul Guyer ,  Daniel Aeberli

IPC: F16K31/04 ,  F16K37/00 ,  F24F11/49 ,  F24F11/63 ,  F24F11/84 ,  G05B19/042

CPC classification number: F16K31/046 ,  F16K37/0041 ,  F24F11/49 ,  F24F11/63 ,  F24F11/84 ,  G05B19/042 ,  G05B2219/2614

Abstract: A method for operating a control valve using an HVAC actuator is described, the method comprises a circuit of the HVAC actuator executing the steps of: monitoring (S1) a rotation angle (ϕ) associated with a drive torque (Mdrive) applied by the HVAC actuator for moving the valve member; detecting (S2) a blocking of the control valve, if the applied drive torque (Mdrive) effects a change of the rotation angle (Δϕ) which is smaller than a threshold angle (ϕth); upon detection of the blocking, controlling the HVAC actuator to repeatedly change the applied drive torque (Mdrive) between a first torque value (M1) and a second torque value (M2); and controlling the HVAC actuator to periodically modulate (S4) the first torque value (M1) between a third torque value and a fourth torque.

公开(公告)号：US11530838B2

公开(公告)日：2022-12-20

申请号：US16316217

申请日：2017-09-05

Applicant: BELIMO HOLDING AG

Inventor： Reto Anliker ,  Paul Guyer ,  Silvio Grogg

IPC: F24F13/22 ,  F24F140/30

Abstract: An HVAC actuator (1) comprises a motor (12), a motor controller (13) coupled to the motor (12), and a heating apparatus (14) thermally coupled to the HVAC actuator (1). The HVAC actuator (1) further comprises a condensation controller (15) coupled to the heating apparatus (14). The condensation controller (15) is configured to monitor at least one condensation parameter, and to control the heating apparatus (14) using the at least one condensation parameter.