RU2778865C2 - Device for cooking, using sous-vide technology - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: device (100) for cooking, using a sous-vide technology, contains outer case (104), inside which heated tube (448) is located, surrounding inner tubular wall (311), wherein inner tubular wall (311) forms first channel (461), and between the inner tubular wall and an outer tubular wall, second channel (462) is formed, while first channel (461) and second channel (462) interact with each other to provide a path for passage of a fluid flow passing from inlet (107) to outlet (106), and to inner tubular wall (311), blades (450) are attached so that to be rotated by it and, thereby, to provide the fluid passage along the flow passage path.

EFFECT: obtaining a device for cooking, using a sous-vide technology.

18 cl, 26 dwg

Description

The field of technology to which the invention belongs

SUBSTANCE: invention relates to devices for sous-vide cooking (low-temperature cooking in vacuum) and, in particular, to an immersion-type device for sous-vide cooking.

State of the art draft

Sous vide cooking appliances can be classified as fixed bath type or submersible type. Sous vide sous vide cooking units have a special cooking tank or tank that is integrated with a recirculation system, hot water system, timers and other elements. The submersible type device aims to provide comparable functionality in a compact form that can be submerged in a conventional tank. Since the device can be used with a conventional saucepan, it solves the storage problems associated with the size of the tank, and also provides an economic advantage associated with the purchase of the tank. Therefore, he is preferred in the kitchen.

The present technology aims to improve the design and construction of both immersion type and tub type devices. The technology provides advantageous performance, ease and versatility of use, as well as hygiene and equipment maintenance.

Disclosure of invention

The present application proposes a sous vide cooking device comprising:

outer case;

the first inner wall located inside the housing and the surrounding space;

a second inner wall located in said space and enclosing the first channel, wherein a second channel is disposed between the first inner wall and the second inner wall, wherein the first channel has a fluid inlet and the second channel has a fluid outlet adjacent to the fluid inlet wherein the first passage is connected to the second passage at a location spaced apart from the inlet and outlet, so as to provide a fluid flow path extending from the inlet to the outlet;

configured to rotate vanes associated with the fluid flow path to allow fluid to pass from the inlet to the outlet;

an engine connected to the blades with the possibility of transferring a drive force to them to ensure their rotation; and

a heater operatively associated with the fluid flow path to heat the fluid flowing therethrough.

In a preferred embodiment of the invention, a heater is mounted on the surface facing the second channel to heat the liquid as it passes through the second channel.

In a preferred embodiment, the second inner wall is rotatably mounted about an axis of rotation and configured to be driven by a motor, with blades attached to the second inner wall so as to be driven by it.

Preferably, the vanes are positioned adjacent to the outlet so as to move liquid through the outlet from the second channel.

In a preferred embodiment of the invention, the first inner wall is tubular and the second inner wall is tubular.

Preferably, the sous vide cooking apparatus further comprises a temperature sensor mounted on the first inner wall for providing a signal indicative of the temperature of the liquid passing through the second channel.

In a preferred embodiment of the invention, the sous vide cooking apparatus further comprises a switch operatively associated with the heater to supply power to it, the switch being mounted on the first inner wall in such a way that it is at least partially cooled by liquid passing through the second channel.

Preferably, the engine is mounted at a distance from the inlet and outlet so as to be located near the first channel's communication with the second channel.

Preferably the blades are impeller blades.

In a preferred embodiment of the invention, the sous vide cooking apparatus further comprises a first magnetic clutch capable of being driven by a motor and a second magnetic clutch driven by the first magnetic clutch and associated with the blades so as to cause them to rotate. .

Preferably, the second channel is annular and surrounds the first channel.

In addition, the present application provides a sous-vide cooking device comprising:

outer case;

a drive wall rotatably mounted in the housing and enclosing a channel that is at least part of a fluid flow path through the device;

a plurality of vanes mounted on the wall so as to be driven by it into rotation and, thus, to ensure the passage of liquid along the flow path;

a heater for heating a liquid passing along the flow path; and

a motor connected to the tubular wall with the possibility of transferring a driving force to it to ensure its rotation.

In a preferred embodiment of the invention, the sous vide cooking apparatus further comprises a first magnetic clutch capable of being driven by a motor and a second magnetic clutch capable of being driven by the first magnetic clutch and attached to the tubular wall in such a manner that that rotation of the motor causes rotation of the tubular wall by means of the first and second magnetic couplings.

Preferably the blades are impeller blades.

In a preferred embodiment of the invention, the drive wall is the first wall, the channel is the first channel, and the sous vide cooking apparatus comprises a second wall, the second wall surrounding the first wall in such a way as to form a second channel located between the first wall. and a second wall that is connected to the first channel such that the first and second channels provide said fluid flow path.

Preferably, the heater is mounted on the second wall.

In a preferred embodiment of the invention, the sous vide cooking apparatus further comprises a switch operatively associated with the heater to provide power to it.

In a preferred embodiment, the first passage defines an inlet of the fluid flow path and the second passage defines an outlet of the fluid flow path adjacent to the inlet, the first passage communicating with the second passage at a location remote from the inlet and outlet and the blade located near the outlet.

Brief description of the drawings

For a better understanding of the invention, reference is made to the following accompanying drawings, in which:

Fig. 1 is a perspective view of a submersible sous vide cooking apparatus;

Fig. 1A is a perspective view of a submersible sous vide cooking apparatus;

Fig. 2 is a schematic sectional view of the device shown in FIG. one;

Fig. 3 is an exploded perspective view of the main body, base and impeller assembly;

Fig. 4 is a sectional view of the main body, impeller and base;

Fig. 4A is a perspective view of a heater tube having a thick film heater circuit on its dry or outer surface;

Fig. 5 is a perspective view of a hybrid (or composite) impeller assembly;

Fig. 6 is a sectional view of a submersible sous vide cooking apparatus;

Fig. 7 is a sectional view of a submersible sous vide cooking apparatus;

Fig. 8 is a bottom view of the base;

Fig. 9 is a sectional view of the base shown in FIG. eight;

Fig. 10 is an exploded perspective view of the impeller assembly showing the magnets located within the head;

Fig. 11 is a schematic sectional view of a submersible sous vide cooking apparatus comprising a removable impeller where the (complex or hybrid) impeller is driven by a mechanical clutch connected to the motor through a conventional shaft seal;

Fig. 12 is a schematic sectional view of a submersible sous vide cooking apparatus comprising a removable impeller, where the (complex or hybrid) impeller is driven by a mechanical clutch connected to the motor through a conventional shaft seal;

Fig. 13 is a sectional view of a submersible sous vide cooking apparatus comprising an elongated shaft motor with a fixed baffle, where the single axle impeller is driven by a mechanical clutch coupled to the motor through a conventional shaft seal;

Fig. 14 is a schematic sectional view showing the integration of existing technology with a special reservoir;

Fig. 15 is a schematic sectional view showing the integration of existing technology with a special reservoir;

Fig. 16 is a perspective view of a submersible sous vide cooking apparatus incorporating remote temperature sensors;

Fig. 17 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 18 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 19 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 20 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 21 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 22 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 23 is a plan view of a user interface configured to receive plugs from two different temperature sensors;

Fig. 24 is a sectional view of an embodiment of an impeller;

Fig. 25 is a sectional view of an embodiment of a sous vide cooking apparatus; and

Fig. 26 is an exploded sectional view of the sous vide cooking apparatus shown in FIG. 25.

Implementation of the invention

As shown in FIG. 1, Fig. 1A and Fig. 2, the present technology can be implemented in the submersible sous vide cooking apparatus 100. Such a device is immersed in a tank 101. The device has a flat bottom surface 110 that can rest on the bottom of the tank 102. In an alternative embodiment of the invention, as shown in FIG. 1A, a jig 150 may be provided to attach the device to the tank. The jig 150 includes a collar 151 where the device 100 can be raised or lowered relative to the collar 151. A screw-tight or spring-loaded clip 152 is pressed against the bottom 153 of the collar 151. Alternatively, of the invention, it can be attached to the side wall of the tank 103. The device 100 includes a cylindrical housing (outer housing) 104. The housing 104 has a cylindrical removable base 105, which in this example will serve as both an inlet and an outlet. When the device is in operation, water is drawn into the axial inlet 107 and expelled through at least one radially directed outlet 106. As described below, the main body cylindrical portion 108 surrounds a cylindrical outlet flow path that is adjacent to the cylindrical heating element and is concentric. outward relative to the path of the input stream inside it. In some embodiments of the invention, the flow paths can be turned in opposite directions by changing the direction of the impellers.

As shown in FIG. 2, the tubular heater 201 and the engine-driven impeller having the radial blades 202 are controlled by the power control unit 203. For example, a multi-phase brushless DC motor and control circuit may be used. In addition, the power control module 203 receives input signals from a fuse or heater overheat sensor 204, a first temperature sensor 205 that measures the temperature of the incoming water flow and transmits the corresponding information to the power control module 203, and a second temperature sensor 206 that measures the temperature of the heating element. (for example, a cylindrical thick film heater) and transmits this information to the module 203 power control. The power control module 203 regulates the BCR 207, which is preferably installed for better heat dissipation by conduction through the surface and/or housing with circulating water. The power control module 203 controls the heating element by controlling the start of the bidirectional thyristor 207. In addition, the power control module 203 controls the operation of the motor 208 and provides the advantage of being able to control the water flow rate for various applications. Larger tanks may require higher flow rates to satisfactorily mix large volumes of water, while smaller or less filled tanks may benefit from lower flow rates to prevent surface roughness or "binding" of encapsulated components. The motor 208 drives the impeller 320.

The power control module 203 receives input commands from the user interface 210 . Common user inputs relate to time and temperature profiles, limits, or other preferences. The power control module 203 provides information to the user interface via the graphic display 211. The device includes one or more temperature sensor input ports 212. Temperature information from a remote sensor can be displayed on the GUI 211.

On FIG. 3 shows the main body tube 108 with respect to the magnetically driven impeller assembly 300 and the generally cylindrical base 301. In the preferred embodiments of the invention, the base 301 and the main body 108 are releasably and rotatably coupled to each other and capture a freely rotating assembly 300 therebetween. working wheel. In this example, the neck or joint region 302 has an outer surface 306 that engages a spring-type metal ring 303 located on the inside of the base 301. When assembled, the outer portion of the base 301 is flush with the outer portion of the main body 108, and its axial position relative to the main body is mounted by contacting the upper rim 304 of the base 301 with a shoulder 305 adjacent the neck or joint region 302. The neck or joint region 302 may be configured to connect or engage with the base 301. In this example, the joint region 302 forms a groove 323, which aligns with the spring type ring 303 when the main body 108 is connected to the base. The spring may be retained by a groove in both the neck and the base to allow rotation of the body relative to the base when connected. It should be noted that threads (eg, on surface 306) or other means may alternatively be used to engage or connect. The base 301 is rotatable and thus allows the direction of the ejected water flow to be adjusted by the user. This is advantageous for optimizing circulation and temperature stability to avoid having different temperature regions in the tank when a plurality of encapsulated components are placed in the tank.

As shown in FIG. 3, the impeller assembly 300 comprises a head 310 formed by the lower half of the magnetic coupling coupled to the motor, a first inner wall in the form of a cylindrical axial baffle or inner tubular wall 311, a set of radial vanes 202 forming a pressure impeller 320 formed around the lower outer portion. an inner tubular wall 311 which encloses the first passage 461. The base of each blade 202 is integrated with the upper surface 313 of the impeller assembly region, the lower surface of which forms a gently curved central inlet passage 312. Thus, the same strip of material forms the outer surface of the inlet and the inner surface of the outlet area between the individual vanes 202, and the inlet and outlet streams are formed coaxially, which minimizes the required water flow for operation.

As shown in FIG. 4, the outer tube 400 of the main body 108 includes a dry compartment 460 defined by an end ring 401 and containing a heater tube 448 forming an additional or second inner wall. The ring 401 fits into the lower end of the outer tube 400 and fits snugly against it. The ring includes a groove 402 in which a polymeric seal 403, such as an o-ring type seal, is located. The ring may be attached to the tube in other ways. The annulus forms a neck or connecting surface 404 that is operable within the base 105. In this example, the base forms a female part of the connection or engagement with the main body 108 and contains a polymer seal or an annular spring wire 405 in an annular groove 406 for this purpose. Other means of attachment are also contemplated. Between the inner tubular wall 311 and the heater tube 448 is the second channel 462.

Channels 461 and 462 cooperate to provide a flow path 463 from the axial inlet 107 to the outlet 106. The channel 461 is cylindrical and the channel 462 is annular and surrounds the first channel 461. The direction of flow in the channel 461 is opposite to the direction of flow in the channel 462.

The ring 401 preferably makes solid contact with the top surface of the inlet 407 of the base. Thus, ring 401 forms a flat or tapered throat 408 which receives the impeller assembly and related parts 300.

The impeller assembly 300 is isolated from the motor 410 by an airtight barrier or plate 411. In this example, the plate includes a cavity 412 whose underside receives the top shoulder 413 of the bearing surface of the impeller assembly 300. The motor 410 drives one half 414 of the magnetic coupling. The upper portion 415 of the impeller assembly 300 contains internal magnets and forms the other half of the magnetic coupling. Thus, there is no direct contact between the motor and the impeller assembly and the motor remains hydraulically isolated or sealed from the impeller assembly 300 and the water flow path around it. Channels 461 and 462 communicate near engine 410.

In one direction, axial movement of the impeller assembly 300 is limited by contact between bearing surface 413 and cavity 412. In the other direction, movement is limited by a hub 416 held by one or more arms 417 extending inwardly from the underside 418 of base 105. Hub 416 may have a bearing. or a bushing 419 to support the end 420 of the impeller assembly 300. In preferred embodiments of the invention, the outer diameter of the hub 419 is the same as the diameter of the tapered distal end of the shaft 422. The end 420 may be made in the form of a tip of the longitudinal metal shaft 421, passing along and inside all or part of the longitudinal extent of the shaft 422 of the impeller. The impeller shaft 422 connects the impeller head 430 to the set of blades 202. In addition, the impeller assembly 300 includes an inner tubular wall 311. The water drawn into the apparatus passes upward through the center of the baffle and then reverses direction and flows downward contacting the cylindrical heated surfaces of the tubular heater and absorbing the heat input.

A cylindrical heater tube 448 connects the sealing plate 411 and the ring 401. In this example, the heater tube 448 carries a heater, such as a thick film heating element. The lower end of the heater tube 448 is attached to the inner diameter of the ring 401. The heater tube is empty except for the impeller.

Cooler water from the reservoir is drawn in by an internal chamber of the hybrid impeller which is formed around the impeller shaft 422 and inside the inner surface of the tubular wall 311. At the upper end of the impeller, if necessary, there is a flow diverter form formed on the underside of the lower magnetic coupling housing 442. This diverter preferably changes the overall direction of the incoming water from upward to downward and allows the water to absorb the heat generated by the heated tube 448. The heated water flowing downward outside the inner tubular wall 311 now changes its overall vector from axial to radial direction due to the action of a plurality of rotating blades (202). In some embodiments of the invention, the flow paths can be turned in opposite directions by changing the direction of rotation and the blades.

The radially displaced exhaust flow is transferred between the wall of the tubular heater or heated tube 448 and the outer surface of the inner tubular wall 311. The inner tubular wall 311 and the impeller shaft 422 are connected by lugs, which in one embodiment of the invention consist of a plurality of axial impeller vanes 450 .

The underside of the base is formed by a widening or narrowing inlet throat region 418 merging into a diameter defined by the inner surfaces 445 of the projections 446 which lift the inlet from the bottom surface of the tank if it rests on it. Raised recesses 447 at the bottom edge of the base allow cooler water from the bottom of the tank to be entrained into the updraft created by the central axial impeller 450 even when the device is against the bottom of the tank.

As shown in the example in FIG. 4A, the thick film heating element 440 is provided directly on or applied to the cylindrical heating tube 501. The contact points 502 for the heating element circuit are inside the dry compartment adjacent to and concentric with the outer tube. Those skilled in the art will recognize that other types of heaters may be used to heat the cylindrical heater tube 501.

As shown in FIG. 5, impeller assembly 300 may include a second set of impeller vanes 450 that connect hub 416 to inner tubular wall 311. In this example, three (3) fan-shaped or helical vanes 502 assist in forcing fluid into inner tubular wall 311 as the impeller rotates. Three helical vanes are shown, however, other numbers of helical vanes may be used. The vanes 502 are formed around the impeller shaft proximate the bearing or end 420. The portion of the shaft 422 between the vanes 502 and the end 420 preferably has a conical shape 503.

As shown in FIG. 6, the outlet 601 is in the form of one or more elongated holes, in one embodiment having rounded ends. The hole 602 is located near the ends 603 of the injection blades 604 in the node 300 of the impeller.

In the example shown in FIG. 7, the top surface of the impeller assembly 300 defines a cavity 701. In one embodiment of the invention, the cavity is formed in an engineering polymer or other material capable of receiving a locating pin or short shaft 702. The shaft 702 is preferably formed or attached to a sealed plate or member 703, which forms a dry compartment 704 between the heater tube 705 and the outer tube 706 of the main body.

As shown in FIG. 8, in one embodiment of the invention, the annular base 800 includes one-piece curved support legs 801 that extend from the inlet region 802 to the central hub 803. The legs 801 are stationary with respect to the flow and therefore are preferably shaped and tapered to reduce drag. .

As shown in FIG. 9, the connection between the main body and the base 900 can be provided by an annular spring wire 901 located in a groove 902 formed on the inner surface of the base. The wire 901 includes a flat 903 or other element that either creates friction or engages with a cooperating groove formed on the neck 302 of the main body 108.

As shown in FIG. 10, impeller assembly 300 includes a head 1000 within which is located a circular array of magnets 1001. In this example, the magnets are arranged with alternating north and south poles facing upwards. The interacting set of magnets associated with the motor of the device is similarly positioned so as to optimize the ratio of centering and magnetic engagement between the two halves of the coupling. The magnets may be molded into the head, placed in the head and sealed with epoxy or other sealants, or held under a separate sealed cover 1002. The cover has a central opening 1003 so that it does not interfere with the top bearing 1004, but so that the separation plate or baffle 411 is continuously is flushed by the incoming water, which enables precise control of the incoming water temperature.

As shown in FIG. 11, the impeller assembly 300 can be easily removed by detaching the base 1100 from the main body 108. In this example, cooperating threads 1101 are provided on the O-ring 1102 and the base 1100. In this example, the impeller assembly 300 is actuated by the first coupling element 1103, which is attached to the motor shaft 1104. The other half of the connecting device 1105 is made in the form of a recess in the head 1106 of the impeller. In this embodiment, an O-ring 1107 around the motor shaft hydraulically isolates the motor from fluid flow around the impeller.

As shown in FIG. 12, one embodiment of the device motor 1200 may have an elongated, flattened, or otherwise articulated shaft 1201 to allow positive rotation of the impeller. In this example, the shaft extends from the approximately top edge 1202 of septum tube 1203 to a releasable female connection 1204 located directly above the tabs or vanes 1205 that connect the septum 1203 to the hub 1206. In preferred embodiments, the tabs or vanes 1205 are located at the bottom of the septum tube. 1203. In this example, the base 1207 comprises a first bayonet coupling portion 1208 and the ring 1209 comprises a second bayonet coupling portion 1210 by which the base and said main body are connected to each other. In this example, the heater tube 1211 includes an annular flange 1212 around the lower end. The flange is attached to the ring 1209 using a set of axial fasteners 1213. In this example, two (2) O-rings 1214 prevent liquid from entering the dry compartment 1215. In the example shown in FIG. 12, the impeller has no head. If necessary, a diverter 1220 flow is attached to the upper end of the tube 1211 of the heater. The diverter is preferably half torus shaped. It should be noted that the diverter may have a different shape and be integral with the upper end of the tube 1211 heater. The center portion of the diverter contains an O-ring 1221 through which extends an elongated shaft 1201. The diverter assists in reversing, bending or reversing the flow vector 1230 with low friction as the flow moves from upward within the septum tube to downward between the septum tube 1203 and the tube 1211 heater.

In the example shown in FIG. 13, septum tube 1300 is stationary. It is attached to the base 1301. The top end 1302 of the septum tube is positioned adjacent to or within a half torus shaped diverter 1303 centered on one or more seals 1304 to isolate the engine from fluid flow. The elongated motor shaft 1305 ends in a connecting section 1306, on which the impeller 1307 is detachably mounted. The base 1301 includes a flexible upper bezel 1308 that receives the lower end of the main body 1309. The lower end of the main body 1309 includes one or more separate or circular projections 1310 that are located within one or more pockets or an annular groove 1311 formed around the perimeter of the inner surface of the bezel 1308 In some embodiments, the rim 1308 includes one or more flexible arms 1320, each of which has a raised edge 1321. The arms flex to engage with and disengage from a continuous projection 1310 provided around the lower end of the main body 1309.

Although the previous examples disclose the use of a cylindrical thick film heater to provide an elongated heated flow path, heat can be applied to the heater tube via conventional heating elements 1315 that are wound around or otherwise applied to the outside of the heater tube 1330 or even function as a heated replacement. separating tube.

As shown in FIG. 14, a device constructed in accordance with the foregoing description for self-contained use 1400 may be built into or attached to a dedicated reservoir 1401. Liquid in the reservoir enters baffle tube 1402 through inlet 1403. Flow exits through outlet 1404. As shown in FIG. 14, the main body 1400 is rigidly attached to the tank while the base 1405 is removable in the manner previously described. This allows the impeller assembly 1410 to be easily removed for cleaning or replacement. In the example shown in FIG. 14, the device passes through an opening 1430 in the bottom surface of the reservoir. In the example shown in FIG. 15, the device is held in an opening 1501 provided in the side wall 1502 of the tank 1503.

As shown in FIG. 16, the device head 1600 may have one, two, or more sockets 1601 for receiving a plug or plugs 1602 associated with a temperature sensor 1603. In the example shown in FIG. 16, sockets 1601 are located on opposite sides of the user interface 1603.

As shown in FIG. 17, sockets 1700 may be located on the same side of the user interface 1702. In this example, the interface displays cooking time information 1703, measured temperature or average temperature 1704, and target temperature 1705.

As shown in FIG. 18, when only one of the two temperature sensors 1801 is connected to the head, the temperature display for that sensor is performed in the GUI area 1802 next to the sensor 1801 in question.

As shown in FIG. 19, with both sensors inserted in their respective sockets, two different temperatures 1901, 1902 are displayed, each in the area of the graphic display 1903, which is adjacent to the connection point of the respective sensors 1904, 1905. The time graphic has been moved to the opposite side of the display from the active sensor sockets. .

As shown in FIG. 20, the device may display temperature information 2000 generated by temperature sensors located within the device. Since no external sensor 2001 is connected, no information about external sensors is displayed. In the example shown in FIG. 21, one display 2100 is shown next to the socket opening 2101 into which the operating sensor 2102 is inserted. In the example shown in FIG. 22, both remote sensors 2200, 2201 are inserted into their sockets 2202, 2203. The processor, upon receiving information from sockets 2202, 2203, generates a separate temperature display for each sensor 2204, 2205. Preferably, displays 2204, 2205 are located immediately adjacent to the corresponding socket 2202, 2203 In preferred embodiments of the invention, the graphic data is moved or modified when the sensor is inserted into the socket. For example, the display of temperature measured by a sensor may be larger and more prominent than tank temperatures.

As shown in FIG. 23, receptacles 2300, 2301 for a temperature sensor plug 2302 may be located on top surface 2303 of head 2304. As described above, upon detecting insertion into the receptacle, the processor causes a temperature display 2305 to be located adjacent to the appropriate sensor. In preferred embodiments of the invention, the processor generates display 2305 only when the sensor is inserted into the socket.

On FIG. 24 shows an embodiment of an impeller assembly 2400 comprising a head 310 that defines the lower half of a magnetic coupling coupled to the motor and an inner tubular wall 311 that defines a pressure impeller 320 around a lower outer baffle. Each impeller blade is integrated with surface 313 such that the bottom surface forms a gently curved central inlet 312. The inlet and outlet streams are coaxial, which can reduce the required settling for operation. The impeller assembly 2400 may include a second set of impeller vanes 450 that connect the hub 416 to the inner tubular wall 311. In this embodiment, by way of example only, the first set of helical vanes 502 assist in drawing or forcing fluid into the inner tubular wall 311 as the rotor rotates. wheels. A first set of vanes 502 is formed around the impeller shaft adjacent to the bearing or end 420. In this embodiment, by way of example only, a second set of three (3) fan-shaped or helical vanes 2402 is provided around the top of the inner tubular wall 311, which helps to retract or to inject liquid into the inner tubular wall 311 while rotating the impeller. It should be noted that although three helical blades are shown, a different number of helical blades may be used.

On FIG. 25 and FIG. 26 shows the use of a fixed disc member 2500 with an opening 2502 which, when used, can reduce the vortex created under the rotating impeller of the sous vide cooking device. This anti-swirl 2500 provides a stationary concentric orifice disk that is supported by the base 301 and closely positioned below the rotating impeller. This reduces the unwanted vortex formed below the axial inlet. The underside or bottom surface 312 of the impeller 320 is generally disc-shaped and has a smooth transition to the inside of the inner tubular wall 311. providing the effect of the inlet helical vanes 502 on the fluid. The underside or bottom surface 2504 of the anti-swirl 2500 may be contoured (eg, contour 2506) to provide a curved smooth transition to the inlet. The technology provides an immersion type sous vide cooking apparatus that uses a heated element in contact with a flow path. The heated element is described as a tubular heater or heated volute. The flow path enters and exits the device at the same end via a hybrid or composite impeller. Known devices have separate inlet and outlet channels located in essentially different or opposite areas of the device. In a real sous vide cooker, the inlet and outlet ports are located at the distal end of the appliance, which provides two distinct advantages: the appliance requires less complicated sealing of the internals; and the apparatus can operate at shallow depths for preparing custards, eggs, aspics, and the like.

In some embodiments, the flow path through the sous vide cooking apparatus is curved or concentric. It should be noted that this curved path is provided by an axial impeller which is submerged even if the water level is very low. It is this first impeller that entrains the water along a concentric path. The device has a curved or concentric flow path to bring the inlet and outlet flow paths closer together and allow it to be used in substantially smaller tanks. By way of example only, the sous vide cooker can operate in 12.5 mm deep water.

While the present invention has been described with reference to specific examples, those skilled in the art will recognize that the invention may be embodied in many other forms.

The technology provides an immersion-type sous-vide cooking device using a tubular heater. In the present embodiments, the tubular heater includes a heater in contact with the flow path. The flow path enters and exits the heater at the same end via a hybrid (or stacked) impeller.

In this application, unless otherwise indicated, the use of ordinal numbers "first", "second", "third", etc. to describe a general object simply indicates that reference is being made to different instances of similar objects, and it is not intended that the objects described in this way should be presented in a given sequence in time, space, ranking, or in any other way.

In this specification, reference to "one embodiment" or "any embodiment" or "example" means that a particular element, structure, material, or feature described with respect to an embodiment of the invention is included in at least one embodiment. implementation of the present invention. Thus, the appearance of the phrases "in one embodiment" or "in an example" at different places in this specification does not necessarily mean, although it may mean, a reference to the same embodiment or example.

Furthermore, one of ordinary skill in the art will appreciate from the present disclosure that specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments of the invention.

Likewise, it should be understood that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in one embodiment, drawing, or description thereof for the purpose of streamlining the disclosure and aiding understanding of one or more of the various innovative aspects. However, this manner of disclosure should not be interpreted as reflecting the intent of the claimed invention to require more features than are expressly set forth in each claim. On the contrary, as the following claims show, the innovative aspects do not lie in all the features of one embodiment of the invention described above. Any claims following the "Carry out the invention" section are thus expressly included in this "Carry out the invention" section, with each claim standing alone as a separate embodiment of the invention.

Unless specifically stated otherwise, as can be seen from the following descriptions, it should be understood that in all descriptions, the use of terms such as "processing", "calculation", "calculation", "determination", etc., refers to the action and/ or processes of a microprocessor, controller, or computer system or similar electronic computing device or signal processing device that manipulates and/or converts data.

In addition, while some embodiments of the invention described in this application include some, but not all of the features included in other embodiments, it is intended that combinations of features of different embodiments are within the scope of the invention and form different options. implementation, as understood by those skilled in the art. For example, in the following claims, any of the presented embodiments of the invention may be used in any combination.

Thus, while the preferred embodiments of the invention have been described, it will be understood by those skilled in the art that other and additional modifications may be made to them within the scope of the invention, and it is intended that all such changes and modifications be included within the scope of the invention. .

Although the present invention has been disclosed with reference to specific construction details, they should be understood as being presented by way of example and not as limiting the scope of the invention.

Claims (29)

1. A sous vide cooking device, comprising: outer case; the first inner wall located inside the housing and the surrounding space; a second inner wall located in said space and enclosing the first channel, wherein a second channel is disposed between the first inner wall and the second inner wall, wherein the first channel has a fluid inlet and the second channel has a fluid outlet adjacent to the fluid inlet wherein the first passage is connected to the second passage at a location spaced apart from the inlet and outlet, so as to provide a fluid flow path extending from the inlet to the outlet; configured to rotate vanes associated with the fluid flow path to allow fluid to pass from the inlet to the outlet; an engine connected to the blades with the possibility of transferring a drive force to them to ensure their rotation; and a heater operatively associated with the fluid flow path to heat the fluid flowing therethrough. 2. The sous vide cooking apparatus of claim 1, wherein the heater is mounted on a surface facing the second channel to heat the liquid as it passes through the second channel. 3. The sous vide cooking apparatus according to claim 1 or 2, wherein the second inner wall is rotatably mounted about an axis of rotation and configured to be driven by a motor, wherein the blades are attached to the second inner wall in such a manner that to be brought into rotation. 4. A device for cooking sous-vide according to paragraphs. 1, 2 or 3, in which the vanes are located adjacent to the outlet in such a way as to move liquid through the outlet from the second channel. 5. Device for cooking sous-vide technology according to one of paragraphs. 1-4, wherein the first inner wall is tubular and the second inner wall is tubular. 6. A device for cooking sous-vide technology according to one of paragraphs. 1-5, further comprising a temperature sensor mounted on the first inner wall for providing a signal indicative of the temperature of the fluid passing through the second channel. 7. A device for cooking sous-vide technology according to one of paragraphs. 1-6, further comprising a switch operatively connected to the heater for supplying power to it, and the switch is mounted on the first inner wall in such a way that it is at least partially cooled by liquid passing through the second channel. 8. A device for cooking sous-vide technology according to one of paragraphs. 1-7, in which the engine is mounted at a distance from the inlet port and the outlet port so as to be located near the place where the first channel communicates with the second channel. 9. A device for cooking sous-vide technology according to one of paragraphs. 1-8, in which the blades are impeller blades. 10. A device for cooking sous-vide technology according to one of paragraphs. 1-9, further comprising a first magnetic clutch capable of being driven by a motor and a second magnetic clutch driven by the first magnetic clutch and associated with the blades so as to cause them to rotate. 11. Device for cooking sous-vide technology according to one of paragraphs. 1-10, in which the second channel has an annular shape and surrounds the first channel. 12. A sous vide cooking device, comprising: outer case; a first wall rotatably mounted in the housing and enclosing a channel that is at least part of a fluid flow path through the device; a plurality of vanes mounted on the wall so as to be driven by it into rotation and, thus, to ensure the passage of liquid along the flow path; a heater for heating a liquid passing along the flow path; and a motor connected to the tubular wall with the possibility of transferring a driving force to it to ensure its rotation. 13. The sous vide cooking apparatus according to claim 12, further comprising a first magnetic clutch capable of being driven by a motor and a second magnetic clutch configured to be driven by the first magnetic clutch and attached to the tubular wall such in such a way that rotation of the motor causes rotation of the tubular wall by means of the first and second magnetic couplings. 14. Sous vide cooking apparatus according to claim 12 or 13, wherein the blades are impeller blades. 15. A device for cooking sous-vide according to paragraphs. 12, 13 or 14, wherein the channel is a first channel and the sous vide cooking device comprises a second wall, the second wall surrounding the first wall in such a way as to form a second channel located between the first wall and the second wall, which is connected to the first channel, so that the first and second channels provide the specified path for the fluid flow. 16. Sous vide cooking device according to claim 15, in which the heater is installed on the second wall. 17. The sous vide cooking apparatus of claim 15 or 16, further comprising a switch operatively associated with the heater to supply power to it. 18. A device for cooking sous-vide according to paragraphs. 15, 16, or 17, wherein the first passage defines an inlet of the fluid flow path and the second passage defines an outlet of the fluid flow path adjacent to the inlet, the first passage communicating with the second passage at a location remote from the inlet and outlet. holes, and the blades are located near the outlet.

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