72 results about "Thermostatic mixing valve" patented technology

In various aspects, the present application describes a tankless liquid heater receiving liquid at an inlet and providing heated liquid at an outlet. The tankless liquid heater may include a heating element for heating liquid received from the inlet. A flow sensor indicates the flow rate of the liquid received by the heating element. The heater includes a temperature sensor measuring the temperature of liquid exiting the heating element. A controller of the heater regulates the amount of electrical current energizing the heating element responsive to the flow sensor and the temperature sensor, energizes the heating element when the flow rate of the liquid exceeds a predefined value and prevents energizing the heating element when the heated liquid exceeds a predefined temperature. The heater may also include a thermostatic mixing valve for mixing the heated liquid with liquid diverted from the inlet responsive to the temperature of the heated liquid.

A thermostatic mixing valve (TMV) including a low-flow passageway and a high-flow passageway connecting a mixing chamber and a sensing chamber, and a check valve received in the high-flow passageway adapted to open and allow additional flow from the mixing chamber to the sensing chamber upon fluid flow through the valve rising to at least a predetermined high flow rate. The TMV accommodates a wide range of flows yet does not allow excess flow to bypass the sensing chamber which contains a thermal motor of the valve. Even at high flow rates, therefore, the TMV accurately mixes fluid.

A thermostatic mixing valve (TMV) having a mixing chamber with a plurality of pockets defined therein. The mixing chamber receives cold water flow and hot water flow that has been passed through respective flow inlets and mechanically forced into the pockets defined within the chamber due to axial movement of the plunger. As the hot and cold flow moves into and out of the pockets, the flow streams disperse rather than being maintained in separate flow streams toward the thermostatic element. Because of the increased agitation, the thermostatic element is therefore able to sense a more accurate mixed flow temperature even at low flow rates.

A thermostatic mixing valve for hot and cold water has a valve member for controlling the relative proportions of hot and cold water admitted to a mixing chamber according to user selection of a desired water temperature and a thermostat responsive to the mixed water temperature to adjust the position of the valve member to maintain constant the selected water temperature. The valve member is biased by a return spring in the form of a wave spring having a plurality of turns with transverse waves configured such that adjacent turns sit peak to peak. The wave spring is strong in compression and weak in torsion allowing the ends of the spring to move laterally to accommodate any misalignment in the components of the valve.

A frictionless, pressure balanced proportioning valve assembly, for low power electric operated thermostatic cartridge, composed of a housing with spaced apart hot and cold water inlets and intermediate mixed water outlet, flow communicated to a spool bore with a central widened portion; a spool, guided in the spool bore, by widened end portions, is carrying a central widened disk portion, separating the spool bore into two tubular inlet chambers; two diaphragm seals disposed at both ends of the spool and housing, pressure balancing the inlet chambers; a temperature sensor, exposed to the mixed water outlet pathway, generates a signal, readable by a control circuit; a drive unit energized by a low power electric motor, driving past gear train and eccentric shaft, a bendable connecting rod, axially displacing the spool. Axial displacement of the balanced friction-free spool, proportions flow from the hot and cold water inlets to the mixed water outlet.

A constant temperature mixed valve core includes a fluid switch control unit and a thermostatic control unit, wherein, the fluid switching control unit is connected together with the thermostatic control unit through a temperature conditioning mechanism of the thermostatic control unit; the fluid switching control unit includes a shell of a determined internal area, a fixed lower ceramic chip arranged in the internal area and provided with a center trepanning and at least one grooving, and an upper ceramic chip arranged in the shell internal area, rotatable on the lower ceramic chip and provided with a center trepanning and at least one grooving; a temperature regulation mechanism perforates the center of the shell and combines with the upper ceramic chip to perform operations, drives the ceramic chip to move so that the grooving of the upper ceramic chip is supposed with the grooving of the lower ceramic chip to form a state that the outside water outlet is open. The fluid switching regulator control unit is used to control the mixed water that has been completely mixed evenly and reaches the setting temperature, adjusts the opening angle of the control switch to control the output water flow of the mixed water that has been completely mixed evenly and reaches the setting temperature and the open and shut of the water output, which has features of easy modulation and long service life.

The invention relates to a thermostatic mixing valve in which the access path of the hot water to the mixing chamber is completely formed within a bottom base (2) and the ceramic disks (4, 5) of the valve group, the slider (8) of the thermostatic member sealingly sliding in a central seat of the upper disk (5). By having the hot water not pass through the metallic members of the valve it is possible to eliminate the problems of asymmetric thermal expansion of said metallic members when only hot water is delivered, and also to greatly reduce the problems of calcareous encrustations since the latter build up with difficulty on the ceramic material. Furthermore, the valve is manufactured with a compact and simplified structure, including a small number of pieces, with totally independent temperature and flow rate controls.

A thermostatic mixing valve for mixing cold water and hot water and for setting a mixed water temperature, having an electric motor that is controllable by a control unit and acts via a gear stage on a valve body, which is stroke-adjustable over a setting range and with which the mixing ratio between hot and cold water can be varied depending on a target mixed water temperature, presettable on the user side, and having a sensor element for detecting at least one set position in the setting range of the thermostatic mixing valve. The gear stage has a linearly adjustable linear displacement element, arranged rotationally fixed and provided between the electric motor and the valve body, and the sensor element works together with the linear displacement element to detect the set position.

Mixing valve turbulence generators and methods are disclosed. Embodiments include turbulence generation apparatuses and methods that increase the turbulence of, impart swirl to, reverse the direction of, create tortuous paths for, and/or accelerate the mixing of hot and cold fluid within a valve assembly. Alternate embodiments include angled radial slots, angled surfaces and fin-like baffles to enhance the mixing of hot and cold fluids.

The invention relates to a thermostatic mixing valve comprising a hollow body having a first inlet, a second inlet, and an outlet in fluid communication with the first inlet and/or the second inlet via a mixing chamber. The flow through the valve is controlled by an axially extending thermostatic actuator comprising a stem, an enlarged portion and a heat sensitive bulb, said bulb extending into the mixing chamber. The thermostatic actuator is axially displaced between a first end position in which only the first inlet is connected to the outlet and a second end position in which only the second inlet is connected to the outlet. The thermostatic actuator is displaced in a sleeve member arranged to restrict the flow of water from the second inlet past the enlarged portion of the thermostatic actuator during its axial displacement until the thermostatic actuator reaches the second end position.

The invention concerns a thermostatic mixer valve for hot and cold water, which comprises a rotary delivery regulator device (15), a thermostatic bulb (17) positioned coaxially to said regulator device, and a mixer control device (16) working in conjunction with the thermostatic bulb. The delivery regulator device (15) and the mixer control device (16) with relative thermostatic bulb (17) are assembled and housed ready to operate in a cartridge body (10) inserted as a whole in a tap body which has means of transporting hot and cold water towards a mixer chamber and means of delivering the water towards the user point.

A fluid mixing valve for producing a mixed fluid stream from first and second inlet fluid streams having different, varying temperatures, and having different, varying pressures, the mixed fluid stream having a substantially stable, preselected temperature of a magnitude between the temperatures of the first and second inlet fluid streams, the fluid mixing valve including a housing and a mixing regulation assembly disposed within the housing. The invention also provides a method for producing a mixed fluid stream from first and second inlet fluid streams having different, varying temperatures, and having different, varying pressures, the mixed fluid stream having a substantially stable, preselected temperature of a magnitude between the temperatures of the first and second fluid streams.

A thermostatic valve for mixer taps comprising a body provided with a chamber for mixing water, is described. Inflowing side openings for separately inflowing hot water and cold water to the mixing chamber are provided at different heights of the body. Automated means for regulating the flow rates of hot water and cold water operate to intercept the inflowing side openings. The automated means comprise in their turn a thermostatic bulb operating in the mixing chamber and a movable piston to feedback close completely or partially, and selectively, the inflowing side openings in response to the expansions the thermostatic head is subjected to. The valve body comprises a first quick—coupling portion shaped so as to mechanically and fluidically couple with a pressure regulator adapted to regulate the flows of hot water and cold water.

The invention relates to a thermostatic mixing valve, which comprises a valve body (1), inlets (2) and (3) for introducing hot water and cold water, and a discharge port (4) for discharging mixed water. The mixing chamber (7) is located in the valve body (1) and is defined by the surrounding wall (8), and the slide valve (9) is contained in the surrounding wall (8), and the slide valve (9) can slide in the mixing chamber to control and mix. Opening and closing of the entrance to the cavity (7). A thermostatic component (18) is installed to control the movement of the spool valve (9). A partition (10) is installed in the mixing chamber (7) between the inlets. The cross channel (11) allows water introduced from an inlet to flow through the partition to the outlet (4). The mixing chamber has an inclined surface (14), and the inclined surface (14) can introduce water flow from another inlet to the cross channel to improve the mixing effect of cold water and hot water.

The invention discloses a gas water heater. The gas water heater comprises a shell, an electronic thermostatic mixing valve, a combustion device, a water tube and a controller, wherein a hot water outlet, a cold water inlet, a gas inlet and a smoke outlet are formed in the shell; the electronic thermostatic mixing valve is arranged in the shell; a first inlet, a second inlet and an outlet are formed in the electronic thermostatic mixing valve; the combustion device comprises a combustion cavity and a combustor arranged in the combustion cavity; the water tube is arranged in the shell; two ends of the water tube respectively communicate with the cold water inlet and the second inlet; at least one part of the water tube is wound on the outer peripheral surface of the combustion cavity so that heat exchange between the water tube and the combustion cavity is implemented; and the controller is arranged in the shell and is electrically connected with the electronic thermostatic mixing valve and the combustor. According to the gas water heater of an embodiment of the invention, the temperature of drained water can be convenient to adjust and can be constant, the gas water heater is convenient to control and adjust, the number of parts is small, and the cost is low.