US 12,253,184 B2
Failsafe actuated valve
Graham Peter Baker, Issaquah, WA (US); Parag More, Maharashtra (IN); Daniel Peck, Southampton (GB); Abhijit Shrikrishna Borawake, Maharashtra (IN); and Jason Robert Miner, Villa Park, CA (US)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Filed by EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Filed on Jun. 23, 2022, as Appl. No. 17/847,815.
Claims priority of application No. 202111028232 (IN), filed on Jun. 23, 2021.
Prior Publication US 2022/0412479 A1, Dec. 29, 2022
Int. Cl. F16K 31/04 (2006.01); F16K 17/36 (2006.01)
CPC F16K 31/042 (2013.01) [F16K 17/366 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A failsafe drive adapter for providing failsafe capabilities to an actuator and a valve assembly, the failsafe drive adapter comprising:
a failsafe drive adapter housing base;
a failsafe drive adapter cover mounted to the failsafe drive adapter housing base;
the failsafe drive adapter cover having a first connection interface for engaging with a housing of the actuator;
the failsafe drive adapter housing base having a second connection interface for engaging with a housing of the valve assembly;
an actuator plate located within the failsafe drive adapter housing base, the actuator plate defining a first interface configured to be coupled to an actuator output of the actuator;
a valve plate located within the failsafe drive adapter housing base, the valve plate defining a second interface configured to be coupled to an input shaft of the valve assembly; and
a failsafe plate located adjacent the valve plate, the failsafe plate comprising ratchet lock pins that engage the valve plate to move the valve plate to an open position in the event of a power failure to the actuator, and the valve plate located between the actuator plate and the failsafe plate;
wherein the failsafe drive adapter is configured to drive the rotation of the input shaft in a failsafe state to a predetermined fluid flow state;
wherein the failsafe drive adapter is configured such that it does not require electrical power to function;
wherein the failsafe drive adapter is in a dormant state when the actuator receives electrical power; and
wherein the failsafe drive adapter automatically activates in the event of a power failure to the actuator.