This application claims the benefit of the filing date of European Patent Application Serial No. 19158210.5, filed Feb. 20, 2019, for “Heating Chamber of an Outdoor Stove,” the contents of which are incorporated herein in their entirety.
The present disclosure relates to the field of outdoor stoves, such as campfire stoves, expedition stoves and trekking stoves, and in particular a heating chamber for such stoves.
Classical outdoor stoves and cookers usually provide pot supports, e.g., grids, and some fuel providing means having a control knob to adjust the flame. However, these classical outdoor stoves need an external pot, etc., which is separate and which is placed on the heater, filled with water which then is heated. The heated water may be used for preparing hot beverages such as coffee, tea or herbal infusion, or to prepare freeze-dried food, e.g., soups, etc.
However, this classical setup has the problem that the stove always needs a separate pot or kettle or the like. In addition, it may take some time to prepare the hot water due to the arrangement and the size of the pot or kettle. In addition, the flow of fuel, such as gas should be easily controllable.
In view of the above, the present disclosure provides an alternative solution to the above-mentioned limitations.
The disclosure provides: a heating chamber for a portable stove comprising a fixation mechanism for securing, in a leak-free manner, a container such as a bottle to a first surface of the heating chamber; one or more compartments fillable with liquid, typically water, dispensed from the container; a pressure compensation valve; and an outlet configured to release the liquid from the heating chamber.
Here, the one or more compartments are compartments inside the heating chamber. For example, the volume of the heating chamber may be separated by separation layers. For example, if there are n compartments, where n is a positive integer, there would be n−1 separating layers. The fixation mechanism should secure the container to the first surface of the heating chamber, e.g., the top of the heating chamber. Securing may be understood as locking, screwing, or coupling. The pressure compensation valve should ensure pressure equilibration with the surrounding environment. The outlet serves for the user to release the liquid, e.g., water, from the heating chamber, e.g., after heating, to be able to use the liquid for preparing hot food or beverages.
The heating chamber as described above may further have a non-return valve for getting air into the container when liquid is dispensed from the container into the heating chamber when the container is connected to the heating chamber.
The non-return valve should provide that air could get into the container, e.g., a bottle, while the liquid, e.g., water, is released from the container. It should be understood, that the container might not necessarily need to have a lid. In that case, it may be sufficient to just attach a burner part of the portable stove upside down on top of a filled bottle. Once attached, the bottle together with the burner unit are turned around, again.
The heating chamber as described above may further comprise a surface part placeable on a support for the heating chamber, the support comprised in a burner part of the portable stove.
For example, a user may place the heating chamber onto a burner unit of the portable stove. The burner unit may comprise a support for the heating chamber, wherein the support typically fits the dimensions of the heating chamber. The heating chamber may thus have a surface part, for instance a bottom part, with which it can be placed onto the support of burner unit of the portable stove. The heating chamber may then rest on the support at least during the heating process, e.g., boiling water.
The heating chamber as described above may further comprise a plurality of compartments each fillable with liquid dispensed from the container, the compartments may be connected by connecting means, such as through holes or conduits, configured to transport the liquid between the compartments; in particular wherein the compartments stacked vertically one onto another.
In particular, more than one compartments may be present inside heating chamber. The liquid, e.g., water, from the container may fill several of the compartments. The compartments may be similar in size and/or shape and/or volume. In particular, the compartments may be stacked, in particular vertically stacked. Here, vertically should be understood as referring to a vertical axis through the support of the portable stove, the heating chamber, and the container when all three are set up for use by a user. The vertically stacked compartments may be connected by through holes or conduits such that liquid and/or vapor may be exchanged between the compartments. In such a case, the pressure compensation valve may then serve to compensate pressure for the entire system of stacked compartments inside the heating chamber.
In the heating chamber as described above, one or more, or all of the compartments, may have a bottom part inclined with respect to the surface part of the heating chamber; wherein the connecting means are provided at the deepest position of the compartments, respectively.
The inclined bottom of the respective compartment may facilitate exchange of liquid between the compartments; in particular, it may facilitate leaking of liquid from an upper compartment of the stack towards a lower compartment of the stack, with respect to the vertical axis, under the influence of gravity and/or vapor pressure. Particularly, the connecting means of one compartment may be positioned at a deepest position of the compartment, respectively.
In the heating chamber as described above the outlet, may comprise a control valve or faucet for controlling releasing at least a portion of the liquid from the heating chamber, typically after heating, the outlet may be connectable to a flexible pipe or tube.
The control valve or faucet may serve for releasing, i.e., filling at least a portion of the liquid, in particular the heated liquid from the heating chamber into a mug, a cup, a bowl or the like. The control valve or faucet may be configured to allow a controlled filling of heated water from the heating chamber. For easier use, a flexible pipe or tube may be connected to the outlet.
In the heating chamber as described above, the fixation mechanism may comprise a releasable flange or screw threads configured for receiving a corresponding fixation means, such as an interface, of the container.
The disclosure further provides a container module for a portable stove, the container being a bottle made from heat-resistant material such as glass, ceramics, stainless steel, durable plastics; aluminum, titanium, and bio-based plastics; the container comprising an interface for releasably leak-free docking of the container to a first surface of a heating chamber for a portable stove, particularly the container being docked upside-down with respect to the heating chamber.
In the container module as described above, the interface may comprise screw threads for screwing the container to the heating chamber; in particular the interface being comprised in a lid of the container.
The container module may be a bottle filled with cold water. For interfacing the container module, e.g., the bottle with water, the container may comprise at its orifice an interface. The interface may be part of the lid of the container or may be provided separately.
In the container module as described above, the interface may be pluggable for leak-free plugging of the container to a first surface of a heating chamber for the portable stove.
The interface may be pluggable by a non-return valve of the heating chamber, when the container module is set up onto the heating chamber.
The disclosure further provides a portable stove comprising a heating chamber as described above; in particular, the portable stove being an expedition stove, a trekking stove or a camping stove.
The disclosure further provides a burner module for a portable stove for heating a liquid in a heating chamber for the portable stove, the heating chamber as described above; the burner module comprising a support configured to support a heating chamber; in particular the burner module being configured to burn various kinds of fuel such as LPG, hydrocarbon gases, gasoline/petrol, diesel, kerosene/paraffin; and may further comprise a cartridge connector connectable with a fuel cartridge, or a fuel tank fillable with liquid or gaseous or solid fuel.
The burner module as described above may further comprise a switching means such as a switch or a button, and an ignition unit, together being configured to start the flow of fuel and to ignite the fuel substantially simultaneously once the switching means is actuated, e.g., by a user; and configured to stop the flow of fuel once the switching means is released, or actuated, again.
The disclosure further provides a kit of a portable outdoor stove, the kit comprising a portable stove as described above, a container module as described above, and a burner module as described above.
The kit thus provides a complete set of equipment for a portable outdoor stove, including the heating chamber, the container module, the portable stove having the support and the burner module.
Further, the burner module 3 of
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