Faucet assembly with integrated anti-scald device
Improved fluid supply assemblies for fluid systems are provided. In exemplary embodiments, the present disclosure provides for improved fluid supply assemblies and related features, systems and methods of use. More particularly, the present disclosure provides for advantageous faucet assemblies (e.g., electrically or mechanically actuated faucet assemblies) having an integrated anti-scald device and having an integrated temperature mixing valve. The present disclosure provides for a faucet assembly having an integrated temperature mixing valve, and/or having an integrated anti-scald device configured to stop the inlet flow of hot water in the event the mixed outlet water temperature exceeds a user-selected set point. Advantageous faucet assemblies of the present disclosure can prevent scalding as defined by ASSE 1070. Improved, convenient and effective systems and methods for utilizing improved faucet assemblies in fluid systems are provided.
1. A fluid supply assembly comprising:
a mixing valve housed in a mixing cavity, the mixing valve configured to be movable between a full-cold position and a full-hot position, wherein the full-hot position is a maximum hot position for the mixing valve;
wherein the mixing valve is configured such that, when the mixing valve is in the full-cold position, the mixing valve is positioned such that a first amount of cold fluid flows from a cold fluid inlet into the mixing cavity;
wherein the mixing valve is configured such that, when the mixing valve is in the full-hot position, the mixing valve is positioned such that a second amount of cold fluid, less than the first amount, flows from the cold fluid inlet into the mixing cavity; and
an anti-scald device comprising a thermal actuator and a plunger, wherein the thermal actuator is configured to move the plunger to close a hot fluid inlet when a temperature of a mixed fluid flow, formed from hot fluid and cold fluid mixed in the mixing cavity, reaches a set-point temperature;
wherein the mixing valve is configured such that, when the hot fluid inlet is closed, cold water continues to flow to the thermal actuator to cool the thermal actuator to allow the thermal actuator to reset; and
wherein the mixing valve is a dual-cam mixing valve including a hot fluid cam portion and a cold fluid cam portion, the hot fluid cam portion elevating from a first recessed end to a first elevated end and the cold fluid cam portion elevating from a second recessed end to a second elevated end.
2. The fluid supply assembly of claim 1 , comprising a manifold housing, wherein the manifold housing comprises the mixing cavity, the hot fluid inlet, and the cold fluid inlet.
3. The fluid supply assembly of claim 2 , wherein the manifold housing comprises an anti-scald cavity comprising the anti-scald device.
4. The fluid supply assembly of claim 3 , wherein the mixing cavity is fluidly connected to a sensing region of the anti-scald cavity.
5. The fluid supply assembly of claim 4 , wherein the hot fluid inlet is fluidly connected to the mixing cavity and the cold fluid inlet is fluidly connected to the mixing cavity, and wherein the mixing cavity is fluidly connected to a sensing region of the anti-scald cavity such that the mixed fluid flow formed from hot fluid and cold fluid travels through the sensing region of the anti-scald cavity and then out a mixed fluid outlet.
6. The fluid supply assembly of claim 5 , further comprising a spout housing having a spout opening, wherein the spout housing is configured to house the manifold housing, and the spout opening is configured to receive the mixed fluid flow from the mixed fluid outlet.
7. The fluid supply assembly of claim 1 , wherein the mixing valve is a coupled mixing valve configured to simultaneously adjust flow of both the hot fluid and the cold fluid into the mixing cavity.
8. The fluid supply assembly of claim 1 , wherein the coupled dual-cam mixing valve is configured such that:
when the coupled dual-cam mixing valve is in the full-cold position, the second elevated end is positioned a first distance from an end of the cold fluid inlet such that the first amount of cold fluid flows into the mixing cavity; and
when the coupled dual-cam mixing valve is in the full-hot position, the second elevated end is positioned a second distance, less than the first distance, from the end of the cold fluid inlet such that the second amount of cold fluid flows into the mixing cavity.
9. The fluid supply assembly of claim 1 , wherein the mixing valve comprises a mixing portion positioned between the hot fluid cam portion and the cold fluid cam portion.
10. The fluid supply assembly of claim 1 , further comprising a first valve configured such that when the first valve is actuated, hot fluid travels from the hot fluid inlet to the hot fluid cam portion and to the mixing cavity, and cold fluid travels from the cold fluid inlet to the cold fluid cam portion and to the mixing cavity to form the mixed fluid flow.
11. The fluid supply assembly of claim 1 , wherein the first valve is an electrically actuated valve.
12. The fluid supply assembly of claim 1 , wherein the first valve is a mechanically actuated valve.
13. The fluid supply assembly of claim 1 , wherein the thermal actuator is configured to expand to move the plunger to close the hot fluid inlet.
14. The fluid supply assembly of claim 1 , wherein the set-point temperature is adjustable in accordance with adjustment by a user of a position of a component of the assembly.
15. The fluid supply assembly of claim 1 , wherein the plunger member fluidically separates a sensing region from a plunger region of the anti-scald cavity.
16. The fluid supply assembly of claim 15 , wherein the assembly is configured such that hot fluid travels from the hot fluid inlet and to the plunger region of the anti-scald cavity, and then to the mixing cavity to form the mixed fluid flow.
17. The fluid supply assembly of claim 1 , wherein the thermal actuator comprises a wax member.
18. The fluid supply assembly of claim 1 , wherein the mixing valve includes a shaft portion configured to mount to a handle member.