Mixing valve
AssigneeMagarl, LLC
InventorKevin B. Kline
Life of this patent
Estimating the term…
Abstract
A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).
Claims24
1-21. (canceled)
A mixing valve comprising:
- a valve body including a cold fluid inlet configured to be coupled to a source of cold fluid, a hot fluid inlet configured to be coupled to a source of hot fluid, a mixed fluid outlet, a cold fluid passageway between the cold fluid inlet and the mixed fluid outlet, a hot fluid passageway between the hot fluid inlet and the mixed fluid outlet, and a cavity between the inlets and the outlet,
- a liner disposed in the cavity, the liner including an upstream region having a hot liner inlet in communication with the hot fluid inlet, a downstream region between the upstream region and the mixed fluid outlet, the downstream region including a downstream valve seat and a cold liner inlet in communication with the cold fluid inlet, and
- a valve member disposed at least partially in the liner and movable between a first position to block the flow of fluid through the hot liner inlet and a second position engaging the downstream valve seat to restrict flow of fluid from the hot and cold liner inlets, the valve member including a downstream section formed to include a weep opening to permit restricted flow of at least the relatively hotter fluid therethrough when the valve member is in the second position.
A mixing valve comprising
- a valve body including a hot fluid inlet for receiving a flow of hot fluid, a cold fluid inlet for receiving a flow of cold fluid, a mixed fluid outlet, a cavity between the mixed fluid outlet and the inlets, a first seat in the cavity, and a second seat in the cavity, and
- a valve member movable in the cavity between a first position permitting flow of at least one of the hot and cold fluids and a second position restricting a majority of flow of hot fluid through the valve member, the valve member including a plurality of spaced-apart mixing fins configured to encourage mixing by creating turbulence in fluid flowing past the mixing fins.
39-45. (canceled)
A mixing valve comprising
- a valve body providing a first fluid inlet, a second fluid inlet, a mixed fluid outlet, and a cavity defined by at least one internal wall, the cavity being in communication with the inlets and the outlet, and
- a valve member movable along a central axis in the cavity between a position restricting flow from at least one of the fluid inlets and a position permitting flow through both of the inlets, the valve member including a central region and a plurality of spaced apart mixing fins each extending from the central region and including a surface that is non-parallel to the axis to facilitate mixing of the first and second fluids.
50-59. (canceled)
Dependencies are inferred from the claim text.