DE7732126U1 - - Google Patents

Description

1.) Mr. Walter FANENBRUCK, Flotowstraße 32, 4000 DÜSSELDORF 13

2.) Mr. Harry RINGS, Bunzlauer-Weg 44, 4000 DÜSSELDORF-Vennhausen

3.) Mr. Wolfgang MARX, Geschwister-Scholl-Str. 43, 4019 MONHEIM-BAUMBERG

4,) Mr. Peter Kramer, Geschwister-Scholl-Str. 43, 4019 MONHEIM-BAUMBERG

Deep fryer

description

The invention relates to a deep fryer with a deep fryer pan and a heated container connected to it for heating the fat, which is located between the deep-frying pan and circulates in this container.

In the conventional deep fryers, the fat is thermally stressed and quickly contaminated, so that the fat filling the deep fryer "generally has to be completely replaced after a day or two, which Not only does it cost money to buy new grease, but it also causes problems to get rid of the used one Evokes fat. The thermal load on the fat is due to the fact that the temperature of the fat, especially in the event of a shock load, to a significantly higher value than for deep-frying required is set so that the temperature of the fat by hanging goods never falls below the The temperature required for deep-frying drops in any case, because the usual wall heating of the deep-frying pan can cause a drop in temperature of the fat after hanging a

Only gradually balance the sieve containing the goods. This disadvantage arises both in the immediate Heating of the deep fryer (compare DT-AS 1 454 225) as well as when a container designed as a heat exchanger is connected to the deep fryer, through which the Fat is circulated and heated up in the process (DT-OS 2 201 947).

Overheating of the fat quickly creates cracking products, which in higher concentrations are harmful to health and require frequent changing of the grease. This has the additional disadvantage that the cracked products stick to the wall of the deep fryer and especially in the heating area, so that a Cumbersome cleaning of the frying pan and, if necessary, the heat exchanger required for heating the fat

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it is necessary every time / the grease filling is replaced. Food residues that remain in the fat and stick to the wall of the deep-frying pan and / or the heat exchanger over time are another contamination factor.

The invention is based on the object of reducing the thermal load on the fat of a deep fryer to such an extent that that there are no undesirable cracking phenomena in operation and the fat accordingly not or only very little rarely needs to be replaced.

In a deep fryer of the type mentioned at the outset, this object is achieved according to the invention in that the deep fryer pan and the container are connected via a pipe system with a built-in three-way valve, which corresponds to the temperature of the fat in the frypot is controllable. In other words, according to the invention, the deep-frying pan completely separated from the container used to heat the fat, the connection only through a pipe system is established, which can optionally be

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can be set that the heated fat flows through the fryer or not at all into the Deep-frying pan reaches, although mixed operation is not excluded, in which only part of the heated fat circulates through the deep fryer, while the other part goes directly into the container used for heating flows back. This makes it possible to only heat the fat to the required frying temperature, in which an excessive thermal load with the feared cracking phenomena does not occur, because by means of the switchable three-way valve at any time fat at frying temperature in sufficient quantity through the frying pan can be passed through in order to deep-fry the food located there in the desired manner. That Returning and cooled fat is gently reheated to the frying temperature in the heated container, so that there is always a sufficient supply of fat at frying temperature available, which can be added to the Frying pan can be directed.

The three-way valve can be controlled and switched by hand, but it is alternatively also possible to use the three-way valve to be designed reversible by means of a contact switch protruding into the frying pan. In any case, leaves The flow of heated fat can be controlled so that only liquid fat that reaches the frying temperature when required has, gets into the frying pan.

The line system preferably contains a feed pump that is immersed in the container intended for heating, which allows the liquid fat to circulate through the pipe system according to the position of the three-way valve.

According to a further feature of the invention, the line system contains a filter sieve through which the deep fryer pan liquid fat leaving through the overflow as well

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the liquid returned directly from the three-way valve Fat flows through, so that any impurities such as food residues are retained and thus out of the fat cycle to be deposited.

According to yet another feature of the invention, the container used for heating is in by means of a partition divided into two chambers, one chamber being provided with a heater such as heating coils and the other Chamber contains the pump. The septum is designed so that that in the chamber containing the heater heated fat can overflow into the other chamber, for example through one located at the bottom of the container Passage.

Because the liquid fat used for deep-frying is constantly being pumped through the deep-frying pan by the feed pump the deep-frying pan does not need to expand a large volume. Rather, it is sufficient if the deep fryer is only slightly larger than the sieve basket to be hung in the same, which receives the goods to be fried. Accordingly only a relatively small amount of fat is added to the food being deep-fried cools down quickly and due to the constantly flowing warm fat through the overflow in the to heat up used container flows back. Accordingly, the fat only needs to be heated to the relatively low frying temperature To be heated, for which only a relatively small volume of fat is fcenötagen. Because of this gentle Treatment of the fat produces practically no cracking products, so that the fat does not even after prolonged use Contains harmful components. Since the fat is also filtered when it circulates, and with it from residues the fried food is cleaned, the fat can be used much longer than previously possible, so that eir? Change the fat filling is done much less frequently -7-

must become. Under certain circumstances you can dispense with replacing the fat entirely, because it is usual with use Fat consumption has to be constantly refilled anyway, in connection with the gentle treatment of the fat often sufficient to undertake the necessary regeneration

The drawing shows an exemplary embodiment of a deep fryer according to the invention in a vertical section shown schematically.

The deep fryer consists of an upwardly open frying pan 1, one below in the illustrated embodiment the same arranged container 2 and a line system 3 connecting these two parts.

The frying pan 1 is preferably made of stainless steel and can have an external insulation (not shown) or hang in a Yferm water bath. Near the At the top, the frying pan 1 is provided with an overflow to which a downpipe serving as a return is located 5 connects, the lower outlet end 5a of which protrudes into the upper end of the container 2. In the bottom 1a of the Deep-frying pan 1 opens into a pipe socket 6 of the line system 3. In addition, the deep-frying pan 1 is located on the bottom 1a Pressure switch 7 attached, with a pin 8 protruding into the interior of the frying pan 1 as an actuating element is provided, on which a strainer 9 to be hung in the deep-frying pan 1 presses in order to actuate the switch 7.

The container 2 is provided with an enclosing insulation 10 and contains a serving as a drain in the bottom 2a closable valve 11. In the interior of the container 2, a partition 12 is attached, which the container divided in the lower area into two chambers 13 and 14, which are located below the partition wall 12 via a Passage 15 are in communication with one another.

In the chamber 14, electrical heating coils 16 are arranged which, if necessary, can also be provided outside the wall of the container Z _{1, but} within the insulation 10. Above the chamber 14, a basket-like filter screen is 17, in which protrudes the lower end of the tube 5% in the container. 2

In the chamber 13, a pump 18 is arranged, which is only indicated schematically via a shaft 19 Motor 20 is driven. This pump 18 presses that located in the chamber 13 and heated in the chamber 14 liquid fat in a riser 21 of the pipe system, which leads to a three-way valve 22. One outlet 23 of this three-way valve is connected to the connector 6 connected, while the other outlet 24 opens into the filter sieve 17 as a pipe elbow.

The three-way valve 22 is controlled by the switch 7, which is connected to it via an electrical line 25 is so that that from the pump 18 through the riser

21 pumped liquid fat is either pressed into the deep-frying pan 1 and out of this through the overflow 4 and the Downpipe 5 is returned to the container 2 or flows back through the outlet 24 directly into the container 2, depending on how the switchable three-way valve 22 is set. The arrangement is such that when the strainer basket is suspended in the frying pan 1 9 the switch 7 switches the three-way valve 22 to allow the fat to flow through the deep-frying pan 1, while by removing the strainer 9 from the frying pan 1. the three-way valve is switched back

22 takes place in such a way that the liquid fat conveyed by the pump 18 runs back directly into the container 2. The tube 5 and the outlet 24 open close to the bottom of the filter sieve 17 'so that the returning fat comes into contact with oxygen as little as possible, the

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Cracking of the fat promotes at higher temperatures.

The container 2 has such a volume that it can hold all the fat required, with his Mirror 26 is always below the upper edge of the partition wall 12, so that the returning fat on the heating coils 16 must flow past to get to the pump 18.

If warm liquid fat is required in the deep-frying pan 1 for deep-frying, which is regularly the case when If the sieve basket 9 with the food to be fried is hung in the deep-frying pan 1, the three-way valve is switched over 22 via the switch 7 actuated by the screen basket 9 in such a way that the pump 18 promoted by the continuously running pump liquid fat flows into the deep-frying pan 1 from below and excess fat that has already cooled down, the Frying pan 1 leaves through the overflow 4: around in the Chamber 14 to be reheated to frying temperature.

If, on the other hand, the sieve basket 9 has been removed from the deep-frying pan 1, the fat in the deep-frying pan 1 does not even need the required deep-frying temperature so that it is also not necessary to constantly stream freshly heated fat into the deep-frying pan 1 allow. Rather, the fat can be circulated in a closed circuit within the container 2, whereby heating energy is saved. A thermostat, not shown, regulates the heating power of the heating coils 16 accordingly the temperature of the fat in the container 2.

In order to empty the tub 1, it is only necessary to switch off the motor 20 and the three-way valve set so that a connection between the riser pipe 21 and the outlet 23 is made so that the liquid fat from the frying pan 1 through the riser

7732128

21 can flow back into the container 2. Inside the container 2, the fat can also fall below the solidification point cool, because the container 2 can be heated up for restarting before the pump 18 is switched on and liquid fat is conveyed into the deep-frying pan, 1.

The three-way valve 22 can also be switched over by hand in accordance with the particular operating conditions desired be made, so that in this case the switch 7 can be dispensed with entirely.

With the deep fryer according to the invention, it is possible to use fat used for deep-frying longer than before, without the fat being decomposed due to overheating and without components that are harmful to health. Furthermore, it does not apply the tedious work of removing cracking residue from the wall of the fryer when the fryer is shut down Frying pan 1 and / or of the container 2 and the heating coils 16. The filter sieve 17 only needs from time to time Time to be cleaned to throw away the food residues retained there. A renewal of the oil filling generally only takes place in that fresh fat is refilled from time to time in accordance with the consumption of fat will.

The fryer can therefore be operated conveniently and inexpensively, which is particularly important for commercial companies is of great economic importance. Because of its convenient handling, the deep fryer can also be used for private purposes can be used advantageously, even if the use is only sporadic, because the fat filling needs itself not necessarily to be replaced during long downtimes.

7132126

Claims (8)

Expectations ·: 1.) Fryer with a fryer pan and one attached to it heated container for heating up the fat that is between the deep-frying pan and this container circulates, characterized in that it is the interior of the deep-frying pan (1) and the Line system (3) connecting the interior of the container (2), consisting of a pipe system from the container to the deep-frying pan leading pipe (21, 23) with built-in three-way valve (22), depending on the temperature of the fat in the deep-frying pan and the heat requirement in the same is controllable, and has a return line pipe (5) leading from the frying pan into the container. 2.) Fryer according to claim 1, characterized in that the three-way valve (22) is controllable by hand. 3.) Fryer according to claim 1, characterized in that it has a contact switch protruding into the frying pan (1) (7, 8) for the three-way valve (22). 4.) Fryer according to one of claims 1 to 3, characterized in that one in the line system (3) Container (2) immersing feed pump (18) is arranged. 5.) Fryer according to one of claims 1 to 4, characterized in that a filter sieve in the line system (3) (17) is arranged. - 2 "■ 7731128! UM ■ I I t t I till 6.) Fryer according to one of claims 1 to 5, characterized in that that the deep fryer pan (i) '' with a through the filter sieve (17) into the container (2) Overflow (4, 5) is provided. 7.) Fryer according to one of claims 1 to 6, characterized in that the frying pan (1) over the Container (2) is arranged and both the overflow (4, 5) and the one outlet (24) of the three-way valve (22) opens on the filter sieve (17). 8.) Fryer according to one of claims 1 to 7, characterized in that the container (2) is divided into two chambers (13 »14) by means of a partition (12), one chamber (14) having a heater
such as heating coils (16) is provided and the other chamber (13) contains the pump (18). 773212fi