DE202021102405U1 - Oil light - Google Patents

Abstract

Comprising oil light (10), in particular for use in an outside lantern, for burning a plant-based fuel (20), in particular a vegetable oil and / or a vegetable fat
An at least partially translucent or transparent inner vessel (30) which has an open top end (301) into which
- the plant-based fuel (20) and
- water can optionally be absorbed,
A hollow body (40) which is at least partially translucent or transparent and has an open upper end (401)
■ a wick holder (50), which
- Has one or more recesses (501) for receiving a wick (60) each, and
- Can be arranged or detachably arranged in the inner vessel (30) without movement or substantially without movement, wherein between an inner surface (404) of a side wall (403) of the hollow body (40) and an outer surface (305) of a side wall (303) of the inner vessel (30) a first air space (R1) extending at least in sections in the longitudinal direction L and encircling at least in sections is formed.

Description

The invention relates to an oil light, in particular for use in an outside lantern, for burning a plant-based fuel, in particular a vegetable oil and / or a vegetable fat.

Oil lights are known in the art.

A previously known type of oil lights is operated with petroleum, paraffin, a paraffin / vegetable oil mixture (composition oil lights, 30% vegetable oil) or with hardened vegetable oils as fuel. Petroleum is a liquid mixture of saturated hydrocarbons (C ₁₀ H ₂₂ to C ₁₆ H ₃₄ ), which is obtained by fractional distillation of petroleum. It is also known as light oil or middle distillate. Paraffin is a mixture of even longer-chain saturated hydrocarbons (C ₁₈ H ₃₈ to C ₃₂ H ₆₆ ). It is obtained from the lubricating oil cuttings of the vacuum distillation of petroleum. When they are dewaxed, the paraffin slacks, which still contain between 2% and 30% oil, are created as a by-product. The raw paraffin is extracted from the mud by deoiling with different oil separation processes. The latter is then further refined. In addition, paraffin is made from lignite, bituminous slate and peat coals.

A particular disadvantage of this type of oil light is that the fuels to be used are petroleum-based and / or chemically treated vegetable oils are used.

Another disadvantage of oil lights that can be operated with petroleum is that the amount of air supplied is crucial for generating a desired luminous flame. If the air supply is too low, smoke and soot are usually observed. If the amount of air supplied is too large, a blue flame is generated, which is not suitable as a light source. In addition, the use of petroleum can pose a safety risk. For the reasons mentioned above, oil lights to be operated with petroleum usually have relatively complex and thus relatively cost-intensive constructions.

The oil lights operated with paraffin, a paraffin / vegetable oil mixture (30% vegetable oil) or hardened vegetable oils are disadvantageously disposable. The solid fuel is regularly surrounded by a plastic housing or a plastic shell into which it was poured. Even if nowadays compostable housings or covers are used occasionally, the oil lights mentioned here already have an unsatisfactory raw material and energy balance due to the housing or cover manufacture.

Paraffin oil lights also have the disadvantage that the fuel usually has a melting point of around 50 ° C to 60 ° C. On cold days, the heat generated by the wick cast in the fuel is too low to generate the liquid level necessary for complete combustion of the paraffin. Therefore, a paraffin oil light does not burn out completely on cold days.

In the case of oil lights with a fuel consisting of 100% hardened vegetable oils, one disadvantage is that the vegetable oils have been chemically treated. This worsens the CO ₂ balance of the vegetable oils. On the other hand, these oil lights cannot be safely handled at an ambient temperature above 25 ° C without further measures. This can be justified as follows: The melting points of the hardened vegetable oils commonly used are around 35 ° C to 40 ° C. On very hot days, temperatures of 60 ° C to 70 ° C can prevail in a (grave) lantern due to direct sunlight (burning glass effect). As a result, the entire fuel mass is in liquid form. If the burning wick, which is then no longer fixed in the fuel, tilts to the side, the oil light envelope can be damaged or destroyed and the liquid oil can leak out. Due to this risk, safe outdoor use is only possible up to an outside temperature of 25 ° C. Indoor use should be avoided or only under supervision. The same applies to composite oil light, which due to the high paraffin content can be used relatively safely up to an outside temperature of 30 ° C.

In another previously known type of oil candy, edible oil, e.g. B. rapeseed or sunflower oil is used as fuel. These oil lights are also known as night lights. An oil phase at least one centimeter thick is provided, which is located on a water phase. A floating candle wick holder with an inserted candle wick is arranged on the surface of the oil phase. The cooking oil is sucked in by the wick, evaporates and finally burns.

With this type of oil lights, no petroleum-based fuels or hardened vegetable oils are used and reusable glass vessels are usually used. However, the disadvantage of these oil lights is that they are designed for indoor use, ie for use at room temperature. With room temperature or room air temperature is meant the temperature that is usually in inhabited rooms prevails and is between 18 ° C and 25 ° C. In particular, unrefined, i.e. cold-pressed, edible oils regularly show flake formation or cloudiness below an ambient temperature of around 10 ° C. Edible oils usually solidify partially or completely below an ambient temperature of 0 ° C. Then the candle wick fastened in the floating candle wick holder can no longer suck in oil continuously. As a result, the flame goes out. Thus, such oil lights that can be operated with edible oils are only conditionally suitable for use, in particular at ambient temperatures of 10 ° C., which - depending on various factors, for example the time of year - are possible in particular outdoors.

Overall, the oil lights described in the prior art are to be classified as unsatisfactory, in particular from an ecological and economic point of view and because of their limited application possibilities.

The invention is therefore based on the object of overcoming these and other disadvantages of the prior art and of providing an oil light which, in particular, can be produced relatively inexpensively, is easy, safe and trouble-free to handle and within a relatively wide temperature range and over a previously known - Oil lights containing a similar volume of fuel can be used without interruption for at least a comparable period of time.

The main features of the invention emerge from the protection claims.

• ■ ein wenigstens abschnittsweise transluzentes oder transparentes inneres Gefäß, welches ein offenes Kopfende aufweist, in welches
  • - der pflanzenbasierte Brennstoff und
  • - optional Wasser aufnehmbar ist,
• ■ einen wenigsten abschnittsweise transluzenten oder transparenten, ein offenes oberes Ende aufweisenden Hohlkörper und
• ■ einen Dochthalter, welcher
  • - eine oder mehrere Ausnehmungen zur Aufnahme jeweils eines Dochtes aufweist, und
  • - in dem inneren Gefäß bewegungsfrei oder im Wesentlichen bewegungsfrei anordenbar, insbesondere an oder auf einer Oberfläche des in das innere Gefäß aufnehmbaren pflanzenbasierten Brennstoffs oder des optional in das innere Gefäß aufnehmbaren Wassers, oder lösbar anordenbar ist,

wobei
zwischen einer Innenoberfläche einer Seitenwandung des Hohlkörpers und einer Außenoberfläche einer Seitenwandung des inneren Gefäßes ein sich zumindest abschnittsweise in Längsrichtung L erstreckender, wenigstens abschnittsweise umlaufender erster Luftraum ausgebildet ist.The object is achieved by an oil light, in particular for use in an outside lantern, for burning a plant-based fuel, in particular a vegetable oil and / or a vegetable fat

• An at least partially translucent or transparent inner vessel which has an open top end into which
  • - the plant-based fuel and
  • - water can optionally be absorbed,
• A hollow body which is at least partially translucent or transparent and has an open upper end and
• ■ a wick holder, which
  • - Has one or more recesses for receiving a wick each, and
  • - Can be arranged in the inner vessel in a motion-free or essentially motion-free manner, in particular on or on a surface of the plant-based fuel that can be held in the inner vessel or of the water that can optionally be held in the inner vessel, or can be arranged in a detachable manner,

in which
between an inner surface of a side wall of the hollow body and an outer surface of a side wall of the inner vessel is at least partially in the longitudinal direction L. extending, at least partially circumferential first air space is formed.

The oil light claimed here has few components that are comparatively simple and inexpensive to manufacture. It is therefore relatively simple and inexpensive to manufacture and is hardly or not at all susceptible to failure.

When using the oil light described here, the desired luminous flame is generated using a plant-based fuel, in particular vegetable oils and / or fats. The heat radiated by the flame heats the air contained in the first air space, so that - even untreated, especially unrefined - vegetable oils, which regularly flocculate at an ambient temperature below 10 ° C, are wholly or partly in liquid form and continuously through capillary forces rise in the wick and can be burned. This also applies advantageously when the oil light described here is used at an ambient temperature below 0 ° C., in particular at an ambient temperature between -10 ° C. and 0 ° C., at which vegetable oils usually partially or completely solidify.

Ambient temperature according to the present invention is an indoor air temperature, i. H. a room air temperature prevailing in an indoor space, or an outdoor room air temperature, d. H. a room air temperature prevailing in an outside space.

In one embodiment, a wick holder is provided which can be arranged in the inner vessel in a motion-free or essentially motion-free manner, for example a body that can float on or on a surface of the plant-based fuel. In this variant, it is sufficient that at least an uppermost partial volume of the plant-based fuel, which adjoins a surface of the plant-based fuel at the bottom and into which a lower section of the wick is immersed, is in liquid form. The wick usually has a relatively short length L _D , which z. B. is between 1.0 cm and 3.0 cm. The wick holder containing the wick is during the Operation of the oil light always arranged on or on the surface of the plant-based fuel, so that the very limited rise of plant-based fuels, in particular that of vegetable oils, does not pose a problem.

Alternatively, a wick holder is provided, which can be detachably arranged in the inner vessel, so the wick holder has, for example, a wick with a length which is at least a shortest vertical distance between an inside of a wall of the foot end of the inner vessel and the surface of the plant-based fuel corresponds to. It is important that an upper portion of the wick is located above the surface of the plant-based fuel.

Regardless of which configuration of the wick holder is provided, safe operation of the oil light described here is guaranteed. This is because the burning wick cannot lean to one side and come into contact with the side wall of the inner vessel or the hollow body. Melting of an inner vessel, optionally made of plastic, or of a hollow body, optionally made of plastic, is excluded. If the oil light described here gets stuck or tips over despite its stability, the flame is immediately suffocated by the plant-based fuel.

The hollow body advantageously also serves as protection against wind and burns. It is therefore possible to dispense with a protective cup that is often to be provided when using disposable oil lights.

In particular if the claimed oil light is used at an ambient temperature in the range between -10 ° C. and 0 ° C. or even lower ambient temperatures, the plant-based fuel advantageously contains a vegetable oil or consists of one or more vegetable oils.

By means of the oil light claimed here, a continuous combustion of the plant-based fuel with a uniform flame size is advantageously achieved while avoiding the formation of smoke and soot. The oil light described here differs from previously known oil lights in particular in that it can be used both within a relatively wide temperature range and over a very long period of time - compared to previously known oil lights containing a similar fuel volume - without disruption and interruption. The burning time of the oil light described here is, for example, when using a vegetable oil such as safflower oil, corn oil, rapeseed oil, sunflower oil, or a combination thereof, and a fuel volume of about 90 mL to 100 mL between 30 and 40 hours. This corresponds roughly to the burning time of a composition oil light, which contains a burning mass volume of about 125 mL. As a result, not only can the oil light described here be produced simply and inexpensively, but also its operation is comparatively efficient and inexpensive. In addition, the stressed oil light is particularly less susceptible to wear and tear and failure. Because there are few and also robust or durable components provided.

Depending on the embodiment, in particular depending on the material used for the inner vessel and the hollow body, the plant-based fuel used, the design and the volume of the first air space, the oil light described here can be down to an ambient temperature of -10 ° C or even lower Ambient temperatures can be used without disruption and interruption. The latter is particularly advantageous when the claimed oil light is arranged in an outside lantern, for example a grave lantern.

According to the present invention, an outdoor lantern is any reversibly lockable lantern that can be used outdoors. This can be a standing or hanging lantern, which also includes lanterns that are mounted or mountable on a base or rod. In a non-restrictive way, grave lanterns and garden lanterns are mentioned here as examples.

With a view to use in an outside lantern, in particular a grave or garden lantern, the oil light described here - in comparison to the oil or grave lights usually used containing paraffin - is to be assessed as advantageous from an ecological and economic point of view. This can be justified on the one hand by the fact that the oil light claimed here is suitable or intended for operation with a plant-based fuel, in particular vegetable oils and / or fats. Compared with petroleum-based fuels, the plant-based, in particular untreated, fuel has a more favorable CO ₂ balance and is particularly easy and safe to handle, especially compared to petroleum. On the other hand, the inner vessel of the claimed oil light, which is made in particular of a silicate glass or a borosilicate glass, can be refilled as often as desired, so that the oil light described here can be reused as often as desired. As a result, waste is avoided - especially compared to oil or grave lights, in which the fuel is placed in a plastic casing, which also has a positive effect on its ecological balance. The wick holder is also made of a durable material, for example a combination of cork and metal, in particular one or more light metals, manufactured and very often reusable. The only component that needs to be replaced regularly is the wick. In addition, an oil or grave light operated with a plant-based fuel, in particular a vegetable oil, - in contrast to one made using petroleum products - fulfills the liturgical specifications of the Catholic Church.

The plant-based fuel can also be a mixture of several plant-based fuels. The plant-based fuel is advantageously selected from the group consisting of unhardened vegetable oils and unhardened vegetable fats, and combinations thereof. All plant-based fuels known to the person skilled in the art can be used here as plant-based fuels. In a non-limiting way, the following are listed here by way of example: açaí oil, algae oil, argan oil, avocado oil, babagu oil, cottonseed oil, borage oil, cupuaçu butter, cashew peel oil, safflower oil, peanut oil, hazelnut oil, hemp oil, coconut oil, coconut oil, pumpkin oil, cocoa Linseed oil, camelina oil, macadamia oil, corn oil, almond oil, mango butter, apricot kernel oil, poppy seed oil, evening primrose oil, olive oil, palm oil, palm kernel oil, papaya oil, pistachio oil, pecan oil, perilla oil, rapeseed oil, rice oil, castor oil, sea buckthorn oil, mustard oil, sea buckthorn oil, , Soybean oil, sunflower oil, tung oil, walnut oil, watermelon seed oil, grapeseed oil, wheat germ oil, cedar oil, and combinations thereof. It is particularly economical if a vegetable oil is provided which is selected from the group consisting of safflower oil, corn oil, rapeseed oil, sunflower oil, and combinations thereof.

Alternatively or in addition, the plant-based fuel can have a melting temperature between -20.degree. C. and 50.degree. C., advantageously between -19.degree. C. and 49.degree. C., in particular between -18.degree. C. and 48.degree.

• - wenigstens zwei pflanzenbasierte Brennstoffe umfasst, ausgewählt aus der Gruppe bestehend aus pflanzlichen Ölen und pflanzlichen Fetten, und
• - als eine homogene Mischung, eine Emulsion oder ein Mehrphasensystem vorliegt.

It can also be provided that the plant-based fuel

• - comprises at least two vegetable-based fuels selected from the group consisting of vegetable oils and vegetable fats, and
• - is present as a homogeneous mixture, an emulsion or a multiphase system.

The homogeneous mixture can represent a solid or liquid single-phase system, single-phase systems of different viscosity being conceivable, that is to say from low-viscosity to high-viscosity. The multiphase system can comprise at least two liquid phases or at least two solid phases or at least one liquid phase and at least one solid phase.

The water that can optionally be taken up in the inner vessel can be provided for optical reasons. This can be the case, for example, if only a relatively short burning time of the claimed oil light is sought and therefore only a small volume of a plant-based fuel, in particular a vegetable oil and / or fat, is to be accommodated in the inner vessel. For safety reasons, it is not necessary to provide a water phase arranged below the plant-based fuel. Because if the plant-based fuel is used up or the inner vessel is knocked over while the oil light is in operation and the plant-based fuel, in particular a vegetable oil, leaks out, the flame goes out immediately. The oil light claimed here is therefore particularly safe to use.

One embodiment of the claimed oil light provides that the first air space extends continuously along a length L _B of the inner vessel extends and / or is formed circumferentially. The length L _B corresponds to the total length of the inner vessel or essentially the total length of the inner vessel.

According to another variant of the oil light described here, the hollow body is designed as a tubular section open at the upper end and a lower end, a first contour of an upper opening section and a second contour of a lower opening section describing a flat end face in the circumferential direction. Yet another embodiment of the oil light provides that the hollow body has the open upper end and a closed lower end. In an alternative or supplementary embodiment of the oil light, the hollow body - regardless of whether the hollow body is designed as a tubular section or has an open upper end and an open lower end - is constructed in one piece or in several parts.

In the case of the tubular section, for example, several subsections that can be detachably connected to one another can be provided, with two subsections in each case being releasably connectable to one another in the longitudinal direction or transverse direction. Alternatively or in addition, it can be provided that the hollow body is tubular and a bearing surface of a lower end section of a foot end of the inner vessel and the flat end surface of the lower opening section of the hollow body are arranged flush. The flat end face of the lower opening portion of the Hollow body with a surface on which the inner vessel and the hollow body are arranged, or with a receiving device in which at least one lower section of the lower opening section can be received, releasably non-positively and / or positively connected. Alternatively or in addition, the flat end face of the lower opening section of the hollow body can be releasably non-positively and / or positively connected to the inner vessel.

• - in welchem das innere Gefäß reversibel anordenbar oder angeordnet ist und
• - welches über seine Länge gleichbleibende oder unterschiedliche Querschnittsabmessungen aufweist.

If the hollow body has an open upper end and a closed lower end, it is, for example, a circular-cylindrical, oval-cylindrical or polygonal-cylindrical container,

• - in which the inner vessel can be or is reversibly arranged and
• - which has constant or different cross-sectional dimensions over its length.

It can be provided that a bottom part of the container and a casing part of the container can be releasably connected or connected to one another in a form-fitting and / or force-fitting manner.

Another embodiment of the claimed oil light provides that between an inner side of a wall of the closed lower end of the hollow body and an outer side of a wall of a foot end of the inner vessel, at least in sections, a longitudinal direction L. and in the transverse direction Q extending second air space is formed.

Without further action, a second air space is formed, for example, when the inner vessel has a base that is curved in the direction of a cavity in the inner vessel.

According to another variant of the oil light, the first air space and the second air space can be or are connected to one another.

• - die Innenseite und/oder eine Außenseite der Wandung des geschlossenen unteren Endes des Hohlkörpers und/oder
• - eine Innenseite und/oder die Außenseite der Wandung des Fußendes des inneren Gefäßes glatt ausgebildet sind oder eine Oberflächenstruktur aufweisen.

Yet another variant of the claimed oil light provides that

• - The inside and / or an outside of the wall of the closed lower end of the hollow body and / or
• - An inside and / or the outside of the wall of the foot end of the inner vessel are smooth or have a surface structure.

For example, at least three support elements and / or a support which has a cavity can be provided as a surface structure on the inside of the wall of the closed lower end of the hollow body. The inner vessel can be releasably arranged in a form-fitting and / or force-fitting manner on the support elements or the support. In the first case, the first air space and the second air space can be or are connected to one another. In the second case, the first air space and the second air space are separated from one another. Alternatively or in addition, a partially or completely circumferential edge or at least three foot elements can be provided on the outside of the wall of the foot end of the inner vessel.

In a further embodiment of the oil light there is a maximum outside diameter D1 of the inner vessel smaller than a minimum inner diameter D2 of the hollow body. In other words: the maximum outside diameter D1 of the inner vessel and the minimum inner diameter D2 of the hollow body are to be selected so that the inner surface of the side wall of the hollow body and the outer surface of the side wall of the inner vessel are at least partially spaced from one another in the arranged state, so that the first air space is present.

According to another embodiment of the claimed oil light, an upper end section of the head end of the inner vessel has an at least partially circumferential and outwardly extending collar, with an underside of the collar being positively and / or non-positively arrangeable on the flat end face of the upper opening section of the hollow body is arranged. This results in a separation of the first air space from the ambient air. As a result, the heat radiated by the flame can be stored particularly efficiently.

Another embodiment of the oil light provides that the collar has a collar section that adjoins downwards. The collar is then designed in an inverted U-shape and, in the arranged state, encloses the flat end face of the upper opening section of the hollow body.

In yet another embodiment variant, a sealing element is provided which, in particular in the area of the upper end section of the head end of the inner vessel, reversibly positively and / or non-positively between the inner surface of the side wall of the hollow body and the outer surface of the side wall of the inner vessel can be arranged or is arranged. Alternatively or in addition, the sealing element can be connected to the inner surface of the side wall of the hollow body or the outer surface of the side wall of the inner vessel in a form-fitting, non-positive and / or cohesive manner, advantageously reversibly form-fitting and / or non-positive. The sealing element can, for example, have a material selected from the group consisting of cork and polymers, and a combination thereof, or be made from one of these materials.

1. a) auf nachwachsenden Rohstoffen basierende Polymere, welche nicht biologisch abbaubar sind, z. B. Bio-Polyethylen (Bio-PE),
2. b) auf nachwachsenden Rohstoffen basierende Polymere, welche biologisch abbaubar sind, z. B. Polyhydroxyalkanoate (PHA), und
3. c) auf petrochemischen Rohstoffen basierende Polymere, z. B. Polybutylenadipat-terephthalat (PBAT), welche biologisch abbaubar sind.

According to the present invention, the term polymers encompasses naturally occurring polymers such as natural rubber, conventional polymers, e.g. B. also synthetic rubber and silicone, and biopolymers. Conventional polymers are based on petrochemical raw materials, e.g. B. polyethylene, and are not biodegradable. In the present case, biopolymers are understood to mean the groups of polymers mentioned below:

1. a) Polymers based on renewable raw materials which are not biodegradable, e.g. B. Bio-polyethylene (Bio-PE),
2. b) Polymers based on renewable raw materials which are biodegradable, e.g. B. Polyhydroxyalkanoate (PHA), and
3. c) Polymers based on petrochemical raw materials, e.g. B. polybutylene adipate terephthalate (PBAT), which are biodegradable.

In another embodiment of the oil light, a first vertical longitudinal axis runs L1 of the inner vessel and a second vertical longitudinal axis L2 of the hollow body essentially parallel or parallel to one another.

According to another variant of the oil light, the inner vessel and / or the hollow body have a circular, elliptical or polygonal, for example rectangular, base. The hollow body can over a length L _H of the hollow body and / or the inner vessel over its length L _B of the inner vessel have constant or different cross-sectional dimensions. The length L _H corresponds to the total length of the hollow body or essentially the total length of the hollow body.

In an alternative or supplementary embodiment of the oil light, the inner vessel and / or the hollow body have a material or consist of one or more materials selected from the group consisting of silicate glasses, borate glasses and polymers. The silicate glasses include z. B. quartz glass, but also borosilicate glasses, which can also be assigned to the borate glasses. The term polymers is already defined above. It is advantageous if the inner vessel and / or the hollow body have a material or consist of one or more materials selected from the group consisting of silicate glasses, borate glasses and biodegradable polymers, in particular biopolymers made from renewable raw materials.

According to another alternative or supplementary embodiment of the oil light, the inner vessel and / or the hollow body are made of a refractory material. For example, the inner vessel and / or the hollow body are selected independently of one another from the group consisting of tealight glasses, windbreak glasses, votive glasses and everlasting glasses.

In an alternative or supplementary embodiment of the oil light described here, the inner vessel and / or the hollow body are made partially or completely from a colored glass. The latter are created by adding small amounts of metal oxides. The incorporation of the metal ions into the respective glass structure creates the color effect.

• - des inneren Gefäßes und/oder
• - des Hohlkörpers glatt ausgebildet sein oder eine Oberflächenstruktur aufweisen.

Another embodiment of the oil light provides that an inner surface and / or an outer surface of the side wall

• - the inner vessel and / or
• - The hollow body be smooth or have a surface structure.

On the inner surface and / or the outer surface of the side wall of the inner vessel and / or the side wall of the hollow body, for example, transverse and / or longitudinal ribs can be provided as the surface structure. If, for example, transverse ribs are provided at least in sections on the outer surface of the side wall of the inner vessel, the first air space can - depending on the circumferential extent of the transverse ribs - have almost or substantially convection-free air chamber-like sections. As a result, the heat emitted by the flame is stored even more efficiently. Alternatively or in addition, a motif can be provided, for example engraved, on the inner surface and / or the outer surface of the side wall of the inner vessel and / or the side wall of the hollow body.

Yet another embodiment of the oil light provides that the inner vessel can be refilled. It is particularly advantageous if the inner vessel also consists of a silicate glass or a borate glass. This is particularly advantageous from an economic and ecological point of view.

According to a further embodiment of the oil light, a transport closure is provided, by means of which the open head end, in particular the upper end section of the head end, of the inner vessel can be closed reversibly sealing, in particular airtight and / or liquid-tight. This is advantageous when filling the Inner vessel with a plant-based fuel, in particular a vegetable oil, does not take place at the operating location of the oil light, which means that the inner container filled with the vegetable fuel must be transported to the operating location of the oil light. In addition, by means of the transport lock, contact of the plant-based fuel, in particular an unhardened vegetable oil, with atmospheric oxygen is reduced to a minimum or excluded. This is particularly true when using a transport lock with a seal. As a result, even if the oil is stored in the inner vessel for a long period of time, rancidity of the oil can be reduced to a minimum or even excluded. If, in addition to the plant-based fuel, in particular a vegetable oil, there is a wick holder in the inner vessel, its functionality is also extended if it does not come into contact or hardly any contact with atmospheric oxygen while the inner vessel is in storage.

• - der Transportverschluss wenigstens ein innenliegendes und/oder außenliegendes Verschlussmittel aufweist und
• - wenigstens ein Verschlusselement an der Innenoberfläche und/oder der Außenoberfläche der Seitenwandung des oberen Endabschnittes des Kopfendes des inneren Gefäßes vorgesehen ist,

wobei das wenigstens eine Verschlussmittel und das wenigstens eine Verschlusselement komplementär oder im Wesentlichen komplementär zueinander ausgebildet sind.Another variant of the claimed oil light provides that

• - The transport lock has at least one internal and / or external closure means and
• - At least one closure element is provided on the inner surface and / or the outer surface of the side wall of the upper end section of the head end of the inner vessel,

wherein the at least one closure means and the at least one closure element are designed to be complementary or essentially complementary to one another.

For example, at least two latching elements or a screw thread can be provided as the at least one closure element. At least two locking grooves or a complementary screw thread are then provided as the at least one closure means. The transport lock is then, for example, a bayonet cover, a latching cover or a screw cover.

In particular, the transport closure is designed in the shape of a lid or a plug. For example, the transport closure can be a glass cover, a screw cover, a bayonet cover, or a stopper, which has a material or consists of one or more materials selected from the group consisting of cork, glass and polymers. The stopper-shaped transport closure can optionally have an external closure means in the form of a screw thread. The term polymers is already defined above. Alternatively, a cork cover or a cork stopper can be provided as a transport closure, the cork cover or the cork stopper advantageously being treated with wax.

• - der Oberfläche des in das innere Gefäß aufnehmbaren pflanzenbasierten Brennstoffs oder
• - einer Oberfläche des optional in das innere Gefäß aufnehmbaren Wassers schwimmfähiger Körper ausgebildet.

According to yet another embodiment of the oil light, the wick holder is on or on as one

• - the surface of the plant-based fuel that can be taken up in the inner vessel or
• - A surface of the water that can optionally be taken up in the inner vessel is formed as a buoyant body.

1. a) geringer als eine Dichte ρ_B des pflanzenbasierten Brennstoffs ist oder
2. b) höher als die Dichte ρ_B des pflanzenbasierten Brennstoffs und geringer als eine Dichte ρw des optional aufnehmbaren Wassers ist.

In other words: According to this embodiment of the claimed oil light, the wick holder has a density ρ _D which

1. a) is less than a density ρ _{B of} the plant-based fuel or
2. b) is higher than the density ρ _{B of} the plant-based fuel and lower than a density ρw of the optionally absorbable water.

In the present case, all wick holders known to the person skilled in the art, which are designed as buoyant bodies in the aforementioned sense, can be used.

Another embodiment of the claimed oil light provides that the wick holder can be releasably arranged or arranged on the inside of the wall of the foot end of the inner vessel. Then, in an advantageous embodiment, the wick holder can have a density ρ _D which is higher than the density ρ _{B of} the plant-based fuel and higher than the density ρw of the optionally absorbable water. In the simplest case, the wick holder can be releasably non-positively arranged or arranged on the inside of the wall of the foot end of the inner vessel. In an alternative or supplementary embodiment of the oil light, it is provided that the wick holder can be or is detachably arranged on the inner surface and / or the outer surface of the side wall of the inner vessel.

According to another embodiment of the oil light described here, the wick holder can be reversibly connected or connected to the inside of the wall of the foot end of the inner vessel in a form-fitting and / or force-fitting manner. An alternative or supplementary variant provides that the wick holder can be or is connected to the inner surface and / or the outer surface of the side wall of the inner vessel in a reversible form-fitting and / or force-fitting manner.

For this purpose, in one embodiment of the oil light, a connecting element on the inside of the Wall of the foot end and / or on the inner surface and / or the outer surface of the side wall of the inner vessel, with which the wick holder is reversibly form-fitting and / or non-positively connectable or connected.

Another variant of the oil light claimed here provides that the wick holder is designed in one piece or in several pieces. Alternatively or in addition, it can be provided that the wick holder has a material or consists of one or more materials selected from the group consisting of metals, in particular light metals such as aluminum, cork, pumice, polymers, glass fibers and carbon fibers. The term polymers is already defined above. According to a further alternative or supplementary embodiment, each recess of the wick holder has at least one clamping means and / or one holding means.

In another embodiment of the oil light claimed here, a wick can be releasably fixed or fixed in at least one of the recesses of the wick holder. The wick is a round wick or a flat wick and has a material or consists of one or more materials selected from the group consisting of natural fibers, for example cotton, glass fibers, cellulose, beeswax, vegetable wax, for example rapeseed wax, sunflower wax and / or soy wax , Paraffin wax and stearin wax. Alternatively or in addition, it can be provided that at least one wick has a length between 1.0 cm and 50.0 cm, advantageously between 1.0 and 40.0 cm, even more advantageously between 1.0 and 30.0 cm, in particular between 1.0 and 25.0 cm.

Another variant of the oil light provides that at least one wick can be releasably fixed or fixed in at least two recesses of the wick holder.

According to another embodiment of the oil light described here, a glass lifter that can be detachably arranged in or on the hollow body or on the inner vessel is provided. The glass lifter comprises a lifting element and a guide element, the lifting element having a receiving element in or on which the inner vessel can be reversibly positively and / or non-positively arranged. The glass lifter can be made in one piece or in several pieces.

The glass lifter can advantageously be arranged in or on the hollow body or on the inner vessel during ongoing operation of the stressed oil light, without impairing the function of the oil light. Contact of the glass lifter with the inner vessel during operation of the oil light or during transport of the inner vessel, e.g. B. for filling with a plant-based fuel is not required. If the plant-based fuel is used up, the inner vessel can be lifted, for example, by means of a glass lifter arranged in the hollow body and removed from the hollow body. After the inner vessel has been refilled with the plant-based fuel, the inner vessel can be returned to the hollow body by means of the glass lifter and arranged therein. The glass lifter then remains in the hollow body until the next refilling of the inner vessel.

Another embodiment of the oil light provides that the lifting element and the guide element of the glass lifter are releasably, in particular orthogonally or essentially orthogonally, connectable or connected to one another.

According to another advantageous embodiment of the oil light described, an underside of the lifting element of the glass lifter rests partially or completely on the inside of the wall of the closed lower end of the hollow body.

Another embodiment of the claimed oil light provides that the receiving element comprises a cavity and / or a receiving surface. In this case, an inner contour of the cavity is designed to be complementary or essentially complementary to at least one section of an outer contour of the lower end section of the foot end of the inner vessel. A diameter of the cavity is larger than an outer diameter of the lower end portion to be received of the foot end of the inner vessel. In particular, the diameter of the cavity is chosen so that the inner vessel can be arranged reversibly positively and / or non-positively. The cavity can, for example, have a circular, elliptical or polygonal, for example rectangular, shape, it also being possible for a semicircular cavity or a polygon interrupted on one side to be provided. Alternatively, the cavity can be provided as a recess in the receiving surface or a delimitation of the cavity can be arranged on an upper side of the receiving surface in a form-fitting, non-positive and / or material fit.

According to another embodiment, the delimitation of the cavity and / or the receiving surface have a material or consist of one or more materials selected from the group consisting of metals, cork, polymers, glass fibers, carbon fibers, silicate glasses, borate glasses. The term polymers is already defined above. The limitation is advantageous the cavity and / or the receiving surface made of a refractory material.

In a further embodiment of the oil light, a delimitation of the cavity comprises, for example, a round wire or is made from such a wire. The receiving surface is, for example, a plate or a grid and in particular has a material or consists of one or more materials selected from the group consisting of metals, polymers, glass fibers, carbon fibers, silicate glasses, borate glasses.

The object is also achieved by using an oil light according to one of the embodiments described above in an outside lantern, in particular a grave lantern or a garden lantern, as a frost guard, as a lantern, as a votive light, as a liturgical light, as a tea light, as a receptacle for an aroma lamp or aroma lamp .

With regard to the advantages of using such an oil light, reference is made to the advantages which are mentioned above for the oil light itself.

Overall, the claimed oil light and its use can be assessed as satisfactory from an ecological and economic point of view.

• 1 einen Querschnitt einer ersten Ausführungsform eines hier beschriebenen Öllichtes im angeordneten Zustand, wobei ein Dochthalter in einem inneren Gefäß bewegungsfrei angeordnet ist,
• 2 einen Querschnitt einer Ausführungsform eines Transportverschlusses,
• 3 einen Querschnitt einer zweiten Ausführungsform des hier beschriebenen Öllichtes, im Betriebszustand,
• 4 einen Querschnitt einer dritten Ausführungsform des hier beschriebenen Öllichtes, wobei ein Dochthalter in einem inneren Gefäß lösbar angeordnet ist,
• 5 einen Querschnitt einer vierten Ausführungsform des hier beschriebenen Öllichtes, wobei ein Dochthalter in einem inneren Gefäß lösbar angeordnet ist,
• 6 einen Querschnitt einer fünften Ausführungsform des hier beschriebenen Öllichtes, wobei ein Dochthalter in einem inneren Gefäß lösbar angeordnet ist.

Further features, details and advantages of the invention emerge from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

• 1 a cross section of a first embodiment of an oil light described here in the arranged state, wherein a wick holder is arranged in an inner vessel without movement,
• 2 a cross section of an embodiment of a transport lock,
• 3 a cross section of a second embodiment of the oil light described here, in the operating state,
• 4th a cross section of a third embodiment of the oil light described here, wherein a wick holder is detachably arranged in an inner vessel,
• 5 a cross section of a fourth embodiment of the oil light described here, wherein a wick holder is detachably arranged in an inner vessel,
• 6th a cross section of a fifth embodiment of the oil light described here, wherein a wick holder is detachably arranged in an inner vessel.

The ones in the 1 , 3 , 4th , 5 and 6th shown oil lights 10 are particularly for use in an outdoor lantern to burn a plant-based fuel 20th , in particular a vegetable oil and / or a vegetable fat, suitable. The plant-based fuel can do this 20th also represent a mixture of several plant-based fuels. The plant-based fuel 20th is advantageously selected from the group consisting of unhardened vegetable oils and unhardened vegetable fats, and combinations thereof. As plant-based fuels 20th all plant-based fuels known to the person skilled in the art can be used here. It is particularly economical if a vegetable oil is provided which is selected from the group consisting of safflower oil, corn oil, rapeseed oil, sunflower oil, and combinations thereof. Furthermore, the plant-based fuel 20th present as a homogeneous mixture, an emulsion or a multiphase system. The homogeneous mixture can represent a solid or liquid single-phase system, single-phase systems of different viscosity being conceivable, that is to say from low-viscosity to high-viscosity. The multiphase system can comprise at least two liquid phases or at least two solid phases or at least one liquid phase and at least one solid phase.

The ones in the 1 , 3 , 4th , 5 and 6th shown oil lights 10 have an inner vessel that is at least partially translucent or transparent 30th which has an open headboard 301 and a foot end 302 having. In the inner vessel 30th is where the plant-based fuel is located 20th , advantageously a vegetable, especially unhydrogenated, oil. Optionally, a water phase can be provided, which is below the plant-based fuel 20th is arranged. For the proper functioning of the 1 , 3 , 4th , 5 and 6th illustrated oil lights 10 it is sufficient if the inner vessel 30th one or more plant-based fuels 20th contains. Furthermore, those in the 1 , 3 , 4th , 5 and 6th shown oil lights 10 in each case a hollow body that is at least partially translucent or transparent 40 which has an open top 401 and a closed bottom end 402 having.

Between an inner surface 404 a side wall of the hollow body 40 and an outer surface 305 a side wall of the inner vessel 30th is a circumferential one in the longitudinal direction L. extending first airspace R1 educated. The first airspace R1 extends continuously along a length L _B of the inner vessel 30th . Also is between an inside 407 one wall 406 the closed lower end 402 of the hollow body 40 and an outside 308 one wall 306 a foot end 302 of the inner vessel 30th at least in sections one in the longitudinal direction L. and in the transverse direction Q extensive second airspace R2 educated.

The inner vessel 30th is advantageously refillable. It is particularly advantageous from an economic and ecological point of view if the inner vessel 30th also consists of a silicate glass or a borate glass. The inner vessel 30th the in 1 , 3 , 4th , 5 and 6th shown oil lights 10 each has at least one closure element 310 on the outer surface 305 the side wall 303 of the upper end section 309 of the head end 301 of the inner vessel 30th on. In case of 1 is the locking element 310 a screw thread. 2 shows a transport lock 70 , by means of which the open head end 301 of the inner vessel 30th is reversibly sealing, in particular airtight and / or liquid-tight, closable. This is beneficial when filling the inner vessel 30th with the plant-based fuel 20th , especially a vegetable oil, not at the operating location of the oil light 10 takes place with the vegetable fuel 20th filled inner vessel 30th So to the place of operation of the oil light 10 must be transported. In addition, the transport lock 70 the contact of the plant-based fuel 20th , especially an unhardened vegetable oil, reduced to a minimum or excluded with atmospheric oxygen. This means that the plant-based fuel can also be stored for long periods of time 20th , especially an unhardened vegetable oil, in the inner vessel 30th rancidity of the oil can be reduced to a minimum or even eliminated. Is in addition to the plant-based fuel 20th , especially a vegetable oil, a wick holder 50 in the inner vessel 30th , its functionality is also extended if it is stored during storage of the inner vessel 30th does not or hardly comes into contact with atmospheric oxygen.

The in 2 shown transport lock 70 has an internal closure means 701 , namely a screw thread, which is complementary to that in 1 , 4th , 5 and 6th shown closure element 310 , the screw thread, of the inner vessel 30th is trained. The in 2 shown transport lock 70 it is at least one screw cap with an internal circumferential seal 702 . In the case of the in 3 shown oil light 10 are on the outside surface 305 the side wall 303 of the upper end section 309 of the head end 301 of the inner vessel 30th two locking elements 310 , namely two locking elements are provided. In a transport lock, not shown 70 are then used as a closure means 701 to provide two locking grooves. The transport lock 70 is then, for example, a bayonet cover or a latching cover. Alternatively, in the case of the in 1 , 3 , 4th , 5 and 6th shown oil lights 10 a plug-shaped transport closure 70 be provided. This can have a material or consist of one or more materials selected from the group consisting of cork, glass and polymers. The stopper-shaped transport closure 70 optionally an external closure means 701 have in the form of a screw thread. Alternatively, it can be used as a transport lock 70 a cork lid or a cork stopper can be provided, the cork lid or the cork stopper advantageously being treated with wax.

Both 1 , 3 , 4th , 5 and 6th illustrated oil lights 10 has the hollow body 40 - as well as the inner vessel 30th - a circular, base. Alternatively, you can use the inner vessel 30th and / or the hollow body 40 have an elliptical or polygonal, for example rectangular, base. The hollow body 40 has a length L _H of the hollow body 40 and the inner vessel 30th over a length L _B of the inner vessel 30th different cross-sectional dimensions. A first vertical longitudinal axis L1 of the inner vessel 30th and a second vertical longitudinal axis L2 of the hollow body 40 parallel to each other. There is also a maximum outside diameter D1 of the inner vessel 30th smaller than a minimum inside diameter D2 of the hollow body 40 . In other words: the maximum outside diameter D1 of the inner vessel 30th and the minimum inside diameter D2 of the hollow body 40 are chosen so that the inner surface 404 the side wall 403 of the hollow body 40 and the outside surface 305 the side wall 303 of the inner vessel 30th are spaced apart from one another in the arranged state, so that the first air space R1 is present. Furthermore, the outside 308 the wall 306 of the foot end 302 of the inner vessel 30th a surface structure, namely a circumferential edge, which the second air space R2 encloses.

The hollow body 40 the in the 1 , 3 , 4th , 5 and 6th illustrated oil lights 10 Also serves as protection against wind and burns. It is therefore advantageously possible to dispense with a protective cup which is often provided when using disposable oil lights. The hollow body 40 can in an alternative not shown embodiment of the oil light 10 also as tubular, at the top 401 and the lower end 402 be formed open section, with a first contour of a Describe upper opening section and a second contour of a lower opening section in the circumferential direction each flat end face.

The hollow body 40 and the inner vessel 30th the in 1 , 3 , 4th , 5 and 6th shown oil lights 10 can comprise a material or consist of one or more materials selected from the group consisting of silicate glasses, borate glasses and polymers. The hollow bodies are advantageously made 40 and the inner vessel 30th from a silicate glass or a borate glass. It is particularly advantageous if the hollow body 40 and the inner vessel 30th comprise a material or consist of one or more materials selected from the group consisting of silicate glasses, borate glasses and biodegradable polymers, in particular biopolymers from renewable raw materials. The hollow bodies are particularly advantageous 40 and inner vessel 30th made of a refractory material. For example, the hollow body 40 and the inner vessel 30th independently selected from the group consisting of tealight glasses, windbreak glasses, votive glasses and perpetual light glasses. The inner vessel 30th and / or the hollow body 40 , especially the hollow body 40 , can also be partially or completely made of a colored glass.

In the inner vessel 30th the in 1 and 3 shown oil lights 10 , ie on a surface 201 des into the inner vessel 30th ingested plant-based fuel 20th , each is a wick holder 50 arranged motion-free. The wick holder 50 consists of cork and a metal, in particular a light metal such as aluminum, and is therefore as an - alternatively on - the surface 201 of plant-based fuel 201 buoyant body formed. One to hold a wick 60 provided recess 501 of the wick holder 50 has a clamping means and / or holding means 502 on. Hence the wick is 60 releasable in the recess 501 of the wick holder 50 fixed. It is particularly advantageous that the in the operating state of the oil light 10 burning wick 60 do not lean to one side and with the side wall 303 of the inner vessel 30th or the side wall 403 of the hollow body 40 can come into contact. This means that an inner vessel, possibly made of plastic, is melted on 30th or a hollow body optionally made of plastic 40 locked out. Should this ( 1 or 3 ) shown oil light 10 If it gets in a lopsided position or overturns despite its stability, the flame is immediately due to the plant-based fuel 20th suffocated. Other wick holders known to the person skilled in the art can also be provided, which are designed as buoyant bodies in the aforementioned sense.

In the case of the in 4th , 5 and 6th shown oil lights 10 is the wick holder 50 in the inner vessel 30th releasably arranged. Even when using this wick holder 50 is the wick 60 in a recess 501 of the wick holder 50 releasably fixed and - as above for the in 1 and 3 shown oil lights 10 outlined - a safe operation of the in 4th , 5 and 6th illustrated oil lights 10 guaranteed. The wick holder 50 has a wick 60 with a length which is at least a shortest perpendicular distance A. between the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th and the surface 201 of plant-based fuel 20th corresponds to. For example, the wick 60 have a length of up to 50.0 cm, so that if necessary a supply of wick 60 is available.

The in 4th illustrated oil light 10 is the wick holder 50 with the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th and the inner surface 304 the side wall 303 of the inner vessel 30th reversibly non-positively connected. The wick holder 50 consists of a detachable force fit on the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th arranged base 505 and a lifter 504 , which are made of metal and are essentially orthogonally connected to one another. A one-part or multi-part design of the wick holder can be used 50 be provided. In the case of a multi-part design, a length of the lifter can, for example, advantageously 504 to the length L _B of the inner vessel 30th be adjusted. The base 505 is designed as a plate with which the recess designed as an essentially cylindrical sleeve 501 is firmly connected. The base 505 and the recess 501 are arranged essentially orthogonally to one another. Inside the recess 501 is the wick 60 arranged positively and non-positively. Due to the coil-shaped design of the recess 501 can the plant-based fuel 20th Easy to wick even when the fill level is low 60 reach, be absorbed by it and burn.

In the case of the in 5 shown oil light 10 is the wick holder 50 with the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th , the inner surface 304 the side wall 303 of the inner vessel 30th and the outside surface 305 the side wall 303 of the inner vessel reversibly non-positively connected. The wick holder 50 is made in two parts and made of metal. It consists of a lifter 504 and a substantially cylindrical sleeve connected to it in a non-positive, positive and / or cohesive manner, which the recess 501 forms and within which the wick 60 Is arranged positively and non-positively. A section 506a an upper end 506 of the lifter 504 lies on the upper end section 309 of the head end 301 of the inner vessel 30th on. There is a positive and non-positive connection. A section 507a a lower end 507 of the lifter 504 is with the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th positively connected. One adhere to the section 507a immediately following end section 507b of the lifter 504 is substantially orthogonal to the section 507a and essentially parallel to the side wall 303 of the inner vessel 30th arranged. The end section 507a is non-positively, positively and / or cohesively connected to a substantially cylindrical sleeve which forms the recess 501 forms and within which the wick 60 Is arranged positively and non-positively. A longitudinal axis of the recess runs here 501 and a longitudinal axis of the end portion 507a essentially parallel to each other. Due to the fact that a lower end 501a the recess 501 is open, the plant-based fuel 20th Easy to wick even when the fill level is low 60 reach, be absorbed by it and burn.

In the case of the in 6th shown oil light 10 is the wick holder 50 with the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th reversibly non-positively connected. There is also a connecting element 503 provided which with the inside 307 the wall 306 of the foot end 302 of the inner vessel 30th is non-positively, positively and / or cohesively connected. The connecting element 503 consists of a, in particular resilient, support element 503a and a latching element, in particular a resilient one 503b . The wick holder consisting of an approximately G-shaped bent wire 50 has a recess 501 on, within which the wick 60 Is arranged positively and non-positively. The wick holder 50 is reversibly positive and non-positive with the connecting element 503 connectable. The latching element engages around 503b a lower end 501a of the wick holder 50 laterally, while laterally opposite the support element 503a the lower end 501a of the wick holder 50 supports.

Both the wick holder 50 in the 1 and 3 as well as the in 4th , 5 and 6th shown wick holder 50 can be designed in one piece or in several parts. Alternatively or additionally it can be provided that the wick holder 50 comprises a material or consists of one or more materials selected from the group consisting of metals, cork, pumice, polymers, glass fibers and carbon fibers.

The one in the 1 , 3 , 4th , 5 and 6th shown wick 60 can each be a round wick or a flat wick and have a material or consist of one or more materials selected from the group consisting of natural fibers, for example cotton, glass fibers, cellulose, beeswax, vegetable wax, for example rapeseed wax, sunflower wax and / or soy wax, paraffin wax and stearin wax.

The in 1 illustrated oil light 10 is one in the hollow body 40 releasably arranged glass lifter 80 intended. The glass lifter 80 includes a lifting element 801 and a guide element 802 , the lifting element 801 a receiving element 801a has, in or on which the inner vessel 30th reversibly positively and non-positively can be arranged. The glass lifter 80 can be made in one piece or in several parts. In the case of a multi-part design, a length of the lifting element can, for example, advantageously 801 to the length L _B of the inner vessel 30th be adjusted. The lifting element 801 and the guide element 802 of the glass lifter 80 are essentially orthogonally, in particular detachably, connected to one another. A bottom 801b of the lifting element 801 of the glass lifter 80 lies at least partially on the inside 407 the wall 406 the closed lower end 402 of the hollow body 40 on. The receiving element 801a can be a circular or approximately semicircular cavity 803 include. There is an inner contour of the cavity 803 complementary to at least one section of a round outer contour of the lower end section 311 of the foot end 302 of the inner vessel 30th educated. A diameter of the cavity 803 is larger than an outer diameter of the lower end portion to be received 311 of the foot end 302 of the inner vessel 30th . In particular, the diameter of the cavity 803 chosen so that the inner vessel 30th can be arranged reversibly positively and / or non-positively. A limitation 804 of the cavity 803 can for example be made from a round wire. Alternatively, the limitation 804 of the cavity 803 comprise a material or consist of one or more materials selected from the group consisting of metals, cork, polymers, glass fibers, carbon fibers, silicate glasses, borate glasses.

The glass lifter 80 can advantageously be used while the oil light is in operation 10 in the hollow body 40 be arranged without the function of the oil light 10 to affect. One contact of the glass lifter 80 with the inner vessel 30th during operation of the oil light 10 or during transport of the inner vessel 30th , e.g. B. for filling with the plant-based fuel 20th , not necessary. Is the plant-based fuel 20th consumed, the inner vessel can 30th by means of the glass lifter 80 raised and out of the hollow body 40 can be removed. After refilling the inner vessel 30th with the plant-based fuel 20th can the inner vessel 30th by means of the glass lifter 80 back into the hollow body 40 are introduced and arranged therein. The glass lifter 80 then remains until the next refilling of the inner vessel 30th in the hollow body 40 .

To start up the in 1 and 3 shown oil light 10 , ie at the time of lighting the wick 60 , must have at least a top sub-volume of the plant-based fuel 20th which is down to the surface 201 of plant-based fuel 20th connects and in which a lower section of the wick 60 immersed, are in liquid form. The wick 60 usually has a relatively short length L _D , which z. B. is between 1.0 cm and 3.0 cm. Compared to the wick lengths usually provided in oil lights, this is particularly resource-saving. This wick length is sufficient to accommodate the in 1 or 3 shown oil light 10 , its inner vessel 30th For example, it contains a fuel volume of 90 mL to 150 mL, operate continuously until the plant-based fuel 20th is used up. In the case of the in 1 and 3 shown oil lights 10 is that the wick 60 containing wick holders 50 during operation of the oil light 10 always on the surface 201 of plant-based fuel 20th arranged. Therefore, the very limited rise of plant-based fuels, especially that of vegetable oils, does not pose a problem.

Important for proper commissioning and functioning of the in 4th , 5 and 6th shown oil lights 10 is that always a top section 601 of the wick 60 above the surface 201 of plant-based fuel 20th is arranged.

In the operating state ( 3 , the functional principle shown applies analogously to oil lights 10 according to 4th , 5 and 6th with one releasable in the inner vessel 30th arranged wick holder 50 ) of the oil light 10 the heat radiated by a flame heats the one in the first air space R1 contained air, so that advantageously - also untreated, especially unrefined - vegetable oils, which flocculate regularly at an ambient temperature below 10 ° C, are wholly or partly in liquid form and continuously through capillary forces in the wick 60 rise and be burned. This also applies advantageously if one of the in the 1 , 3 , 4th , 5 and 6th shown oil lights 10 is used at an ambient temperature below 0 ° C, in particular at an ambient temperature between -10 ° C and 0 ° C, at which vegetable oils usually partially or completely solidify. Especially if those in the 1 , 3 , 4th , 5 and 6th illustrated oil lights 10 are used at an ambient temperature in the range between -10 ° C and 0 ° C or even lower ambient temperatures, the plant-based fuel contains 20th advantageously a vegetable oil, e.g. B. safflower oil, corn oil, rapeseed oil, sunflower oil, or a combination thereof.

Using the in 1 , 3 , 4th , 5 and 6th shown oil lights 10 a continuous combustion of the plant-based fuel is advantageous 20th Achieved with a uniform flame size while avoiding the formation of smoke and soot. In the 1 , 3 , 4th , 5 and 6th illustrated oil lights 10 differ from previously known oil lights in particular in that they can be used both within a relatively wide temperature range and over a very long period of time - compared to previously known oil lights containing a similar fuel volume - without disruption and interruption. In the 1 , 3 , 4th , 5 and 6th shown oil lights 10 can advantageously be used up to an ambient temperature of -10 ° C or at even lower ambient temperatures without interference or interruption. The latter is particularly advantageous when the oil light 10 is arranged in an outside lantern, for example a garden or grave lantern.

The uninterrupted burning time of the 1 , 3 , 4th , 5 and 6th The oil light shown can be used with a fuel volume of 90 mL to 150 mL - depending on the choice of plant-based fuel 20th - be around 40 to 60 hours. If the volume of the vegetable oil is around 90 mL to 100 mL, the in 1 , 3 , 4th , 5 and 6th shown oil lights 10 a burning time between 30 and 40 hours can be achieved. This corresponds roughly to the burning time of a composition oil light, which contains a burning mass volume of about 125 mL. So it is not just the production of the oil lights described here 10 ( 1 , 3 , 4th , 5 and 6th ) can be implemented easily and inexpensively, but the operation is also comparatively efficient and inexpensive. In addition, the in 1 , 3 , 4th , 5 and 6th illustrated oil lights 10 particularly less susceptible to wear and tear and failure. Because there are few and also robust or durable components provided. If the plant-based fuel 20th is used up or the inner vessel 30th during operation of the oil light 10 is knocked over and the plant-based fuel 20th , especially a vegetable oil, leaks, the flame goes out immediately. So the oil lights described here are 10 particularly safe to use.

From all of the above, it follows that using one of the in 1 , 3 , 4th , 5 and 6th shown oil lights 10 in an outdoor lantern, in particular a grave lantern or a garden lantern, as a frost guard, as a wind light, as a votive light, as a liturgical light, as a tea light, as a receptacle for an aroma lamp or aroma lamp is particularly advantageous from an ecological and economic point of view as well as from a safety point of view.

All of the features and advantages arising from the claims, the description and the figures, including structural details, spatial arrangements and method steps, can be essential to the invention both individually and in the most varied of combinations.

List of reference symbols

10

Oil light

20th

fuel

201

Surface of the fuel

30th

inner vessel

301

Head end

302

Foot end

303

Sidewall

304

Inner surface

305

Exterior surface

306

Wall

307

inside

308

Outside

309

upper end section

310

Closure element

311

lower end section

40

Hollow body

401

top end

402

lower end

403

Sidewall

404

Inner surface

405

Exterior surface

406

Wall

407

inside

408

Outside

409

upper opening section

409a

Face

50

Wick holder

501

Recesses

501a

lower end

502

Clamping means / holding means

503

Connecting element

503a

Support element

503b

Locking element

504

Lifter

505

Base

506

top end

506a

section

507

lower end

507a

section

507b

End section

60

wick

601

upper section

70

Transport lock

701

Closure means

702

poetry

80

Glass lifter

801

Lifting element

801a

Receiving element

801b

bottom

802

Guide element

803

cavity

804

Limitation

L.

Longitudinal direction

Q

Transverse direction

R1

first airspace

R2

second airspace

LB

Length of the inner vessel

LH

Length of the hollow body

D1

outer diameter

D2

Inside diameter

L1

first vertical longitudinal axis

L2

second vertical longitudinal axis

A.

perpendicular distance

Claims (27)

Comprising oil light (10), in particular for use in an outside lantern, for burning a plant-based fuel (20), in particular a vegetable oil and / or a vegetable fat An at least partially translucent or transparent inner vessel (30) which has an open top end (301) in which - the plant-based fuel (20) and - optionally water can be received, ■ an at least partially translucent or transparent, an open upper end (401) having hollow body (40) and ■ a wick holder (50) which - has one or more recesses (501) for receiving a wick (60) each, and - can be arranged in the inner vessel (30) free of movement or essentially free of movement or can be detachably arranged, wherein between an inner surface (404) of a side wall (403) of the hollow body (40) and an outer surface (305) of a side wall (303) of the inner vessel (30) an at least sectionally extending, at least sectionally, in the longitudinal direction L circumferential first air space (R1) is formed. Oil light (10) Claim 1 , wherein the first air space (R1) extends continuously along a length (L _B ) of the inner vessel (30) and / or is formed circumferentially. Oil light (10) Claim 1 or 2 The hollow body (40) is designed as a tubular section open at the upper end (401) and at a lower end (402), a first contour of an upper opening section (409) and a second contour of a lower opening section in the circumferential direction in each case Describe flat end face (409a) or - has the open upper end (401) and a closed lower end (402) and / or - is made in one or more parts. Oil light (10) Claim 3 , between an inside (407) of a wall (406) of the closed lower end (402) of the hollow body (40) and an outside (308) of a wall (306) of a foot end (302) of the inner vessel (30) at least in sections is formed in the longitudinal direction (L) and in the transverse direction (Q) extending second air space (R2). Oil light (10) Claim 4 , wherein the first air space (R1) and the second air space (R2) can be or are connected to one another. Oil light (10) Claim 4 or 5 , wherein - an inside (307) and / or the outside (308) of the wall (306) of the foot end (302) of the inner vessel (30) and / or - the inside (407) and / or an outside (408) of the Wall (406) of the closed lower end (402) of the hollow body (40) and / or - an inner surface (304) and / or an outer surface (305) of the side wall (303) of the inner vessel (30) and / or - an inner surface (404) and / or an outer surface (405) of the side wall (403) of the hollow body (40) are smooth or have a surface structure. Oil light (10) after one of the Claims 1 to 6th , wherein a maximum outer diameter (D1) of the inner vessel (30) is smaller than a minimum inner diameter (D2) of the hollow body (40). Oil light (10) after one of the Claims 3 to 7th , wherein an upper end section (309) of the head end (301) of the inner vessel (30) has an at least partially circumferential and outwardly extending collar, with an underside of the collar positively and / or non-positively on the flat end face (409a) of the upper opening portion (409) of the hollow body (40) can be arranged or arranged. Oil light (10) after one of the Claims 1 to 8th , wherein a sealing element is provided which can be reversibly positively and / or non-positively arranged between the inner surface (404) of the side wall (403) of the hollow body (40) and the outer surface (305) of the side wall (303) of the inner vessel (30) or is arranged. Oil light (10) after one of the Claims 1 to 9 wherein a first vertical longitudinal axis (L1) of the inner vessel (30) and a second vertical longitudinal axis (L2) of the hollow body (40) run essentially parallel or parallel to one another. Oil light (10) after one of the Claims 1 to 10 , wherein the inner vessel (30) and / or the hollow body (40) - have a circular, elliptical or polygonal base and / or - the hollow body (40) over a length (L _H ) of the hollow body (40) and / or the inner vessel (30) each have constant or different cross-sectional dimensions over the length (L _{B) of the inner vessel (30).} Oil light (10) after one of the Claims 1 to 11 , wherein the inner vessel (30) and / or the hollow body (40) - have a material or consist of one or more materials selected from the group consisting of silicate glasses, borate glasses and polymers and / or - are made of a refractory material and / or - are partially or completely made of a colored glass. Oil light (10) after one of the Claims 1 to 12th , the inner vessel (30) being refillable. Oil light (10) after one of the Claims 1 to 13th , wherein a transport closure (70) is provided, by means of which the open head end (301) of the inner vessel (30) can be closed in a reversibly sealing manner. Oil light (10) Claim 14 wherein - the transport closure (70) has at least one internal and / or external closure means (701) and - at least one closure element (310) on the inner surface (304) and / or the outer surface (305) of the side wall (303) of the upper end section (309) of the head end (301) of the inner vessel (30) is provided, the at least one closure means (701) and the at least one closure element (310) being designed to be complementary or substantially complementary to one another. Oil light (10) after one of the Claims 1 to 15th wherein the wick holder (50) is designed as a body that can float on or on - a surface (201) of the plant-based fuel (20) that can be received in the inner vessel (30) or - a surface of the water that can optionally be received in the inner vessel (30) is. Oil light (10) after one of the Claims 4 to 16 , wherein the wick holder (50) - on the inside (307) of the wall (306) of the foot end (302) of the inner vessel (30) and / or - on the inner surface (304) and / or the outer surface (305) of the side wall (303) of the inner vessel (30) can be releasably arranged or arranged. Oil light (10) after one of the Claims 4 to 17th , wherein the wick holder (50) can be reversibly positively and / or non-positively connected or connected to - the inside (307) of the wall (306) of the foot end (302) of the inner vessel (30) and / or - the inner surface (304) and / or the outer surface (305) of the side wall (303) of the inner vessel (30). Oil light (10) Claim 4 to 18th , wherein a connecting element (503) is provided - on the inside (307) of the wall (306) of the foot end (302) of the inner vessel (30) and / or - on the inner surface (304) and / or the outer surface (305) the side wall (303) of the inner vessel (30), with which the wick holder (50) can be connected or connected in a reversible form-fitting and / or force-fitting manner. Oil light (10) after one of the Claims 1 to 19th wherein - the wick holder (50) is formed in one piece or in several parts and / or - the wick holder (50) comprises a material or consists of one or more materials selected from the group consisting of metals, cork, pumice, polymers, glass fibers and carbon fibers , and / or - each recess (501) of the wick holder (50) has at least one clamping means and / or one holding means (502). Oil light (10) after one of the Claims 1 to 20th , with a wick (60) being releasably fixable or fixed in at least one of the recesses (501) of the wick holder (50), wherein - the wick (60) is a round wick or a flat wick and comprises a material or consists of one or more materials , selected from the group consisting of natural fibers, glass fibers, cellulose, beeswax, vegetable wax, paraffin wax and stearin wax, and / or - at least one wick (60) has a length between 1.0 cm and 50.0 cm. Oil light (10) after one of the Claims 1 to 21 , at least one wick (60) being releasably fixable or fixed in at least two recesses (501) of the wick holder (50). Oil light (10) after one of the Claims 1 to 22nd , wherein a glass lifter (80) which can be detachably arranged in or on the hollow body (40) or on the inner vessel (30) is provided, comprising a lifting element (801) and a guide element (802), wherein - the lifting element (801) is a receiving element (801a), in or on which the inner vessel (30) can be arranged reversibly positively and / or non-positively, and - the glass lifter (80) is constructed in one piece or in several pieces. Oil light (10) Claim 23 , the lifting element (801) and the guide element (802) of the glass lifter (80) being releasably connectable or connected to one another. Oil light (10) Claim 23 or 24 , wherein an underside (801 b) of the lifting element (801) of the glass lifter (80) rests partially or completely on the inside (407) of the wall (406) of the closed lower end (402) of the hollow body (40). Oil light (10) after one of the Claims 23 to 25th , wherein the receiving element (801a) comprises a cavity (803) and / or a receiving surface, wherein an inner contour of the cavity (803) is complementary or substantially complementary to at least one section of an outer contour of the lower end section (311) of the foot end (302) of the inner vessel (30). Use of an oil light (10) according to one of the Claims 1 to 26th in an outside lantern, in particular a grave lantern or a garden lantern, as a frost guard, as a wind light, as a votive light, as a liturgical light, as a tea light, as a receptacle for an aroma lamp or aroma lamp.

Images