| CPC G05D 23/19 (2013.01) [F16K 11/072 (2013.01); G05B 19/4155 (2013.01); G05B 2219/34013 (2013.01)] | 20 Claims |
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1. A valve comprising:
a core defining a first channel, a second channel, and a third channel disposed within the core, wherein the core is configured to rotate to at least a first position, a second position, and a third position, wherein when the core is in the first position fluid flow is facilitated in a first direction through the first channel and the third channel, when the core is in the second position fluid flow is facilitated in a second direction through the third channel and the first channel, and when the core is in the third position fluid flow is facilitated in a third direction through the second channel;
a housing having a top section and a bottom section, wherein the housing has a first input port, a first output port, a second input port, and a second output port positioned on the housing, and wherein the core is disposed within the housing;
a cap operatively coupled to the top section of the housing, wherein the cap defines a hole disposed through the cap;
a shaft disposed within the hole of the cap and operatively coupled to the core and an actuator through a shaft adapter;
a frame operatively coupled to the housing and the actuator configured to fix the actuator to the housing; and
a torsional spring operatively coupled to the shaft adapter,
wherein in response to an actuation input, the actuator is configured to rotate the core, and
wherein the torsional spring is configured to rotate the core to the first position in response to a failure of the actuator.
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