SU1642990A1 - Pressure cooker - Google Patents

Abstract

The invention relates to cooking devices and can be used at home and in a catering system for expedited cooking. The purpose of the invention is to improve the quality and increase the yield of the finished product, more quickly remove the lids and cool the contents of the pressure cooker, as well as the rapid heating and cooling of the lids. The pressure cooker contains a cooking vessel 1 with handles 2, a lid 3, a heater and a heating controller (not shown). The cover 3 has a flat area on the periphery and a spherically concave section 4 in the center. The tank surface 5 of the cover 3 has a concave shape and is made of a material with a shape memory effect, and its spherical portion is at least partially shaped as a shape memory effect. The diameter of the lid 3 is smaller than the diameter of the cooking vessel 1, and stops are made inside it. Cap 3 can be made double. On the inner side surface of the cooking vessel 1, corrugations can be made to contact them with the lid 3. The pressure cooker can be equipped with a removable heat accumulator. The pressure cooker may have heat pipes 9 placed on flat portions of lid 3. Labels 10 may be applied to the inner surface of vessel 1 of pressure cooker 10. Side surface 5 of lid 3 has a sealed gasket 11, which improves sealing of vessel 1, and lid 3 handles 12. 5 h .P. f-ly, 5il. fe

Description

figure 1

The invention relates to cooking devices and can be used at home and in a catering system for expedited cooking.

The purpose of the invention is to improve the quality and increase the yield of the finished product, as well as faster removal of the lid and cooling of the contents of the pressure cooker, rapid heating and cooling of the lid.

FIG. 1 shows the pressure cooker, the cut; in fig. 2 - cover, cut; in fig. 3 - a fragment of the side wall of the cooking vessel; in fig. 4 is a cut-out showing the interaction of the corrugation of the side wall with the lid; FIG. 5 shows a battery.

The pressure cooker contains a cooking vessel 1 with handles 2 and a lid 3, a heater and a heating controller (not shown). The cover 3 has a flat area at the periphery and a spherically concave 4 in the center. The side surface 5 of the lid 3 has a concave shape and is made of a material with a shape memory effect, and its spherical portion is made at least partially with a shape memory effect. The diameter of the cover 3 is smaller than the diameter of the cooking vessel 1, and stops 6 are made inside it.

Cap 3 can be made double.

On the inner side surface of the cooking vessel 1, corrugations 7 can be made to contact them with the lid.

The pressure cooker can be equipped with a removable heat accumulator 8.

The pressure cooker may have heat pipes 9 placed on flat portions of the cover 3.

On the inner surface of the cooking vessel 1 pressure cooker can be marked 10.

The side surface 5 of the cover 3 has a sealing gasket 11, which improves the sealing of the cooking vessel 1. The cover 3 has handles 12.

Pressure cooker works as follows.

In the cooking vessel 1 place the product, pour the liquid up to 1/2, 2/3 or 3/4 according to the corresponding mark 10, depending on the amount of the prepared product. Then install the cover 3 on the lugs 6, corresponding to the level of the filled fluid. Vertically, the stops are selected depending on the product being processed and the type of heat treatment, for example, for boiling potatoes on the upper stop, (there will be less overpressure), for cooking meat to the next one, etc. Each position of the cover 3 corresponds to its own overpressure created by the cover.

Then turn on the heat and the contents of the vessel 1 -grejut to 95 ° C. The cover 3 is also subject to heat. When heated to 90 ° C side. The 2 surfaces 5 of the lid 3 recall their second shape, after which it will be bent into a position that was mirrored to what it had before, coming into strong contact with the inner wall of the vessel 1. This ensures the sealing of the vessel 1 and the strong adhesion of the lid 3 with it eliminating the opening of the lid when creating overpressure in the vessel.

When the cover 3 is heated to 95 ° C, the upper part of the spherically concave section 4 will recall its second shape, which will be bent down and take the position indicated by the dotted line, this is the air in the vessel 1.

Depending on the position of the cover 3 on the stops 6, the required overpressure is provided.

Next, heating and holding at a temperature excluding boiling water (for example, at 100 ° C) is carried out using a heating regulator. After the set time has elapsed, a time relay or other device shuts off the heating.

Using a heat accumulator 8, the contents of the cooking vessel are cooled to 80 ° C. At 85 ° C, the spherically concave region 4 will be bent and will take a position as before heating (first shape memory). The pressure in vessel 1 will be restored to atmospheric, and at 80 ° C, the memory of the side walls will operate and the hitch between cover 3 and vessel 1 will be disconnected, after which you can easily remove cover 3 using handles 2.

The heat of the heat accumulator 8 is further used to heat the contents of the vessel 1. The cover 3 is heated by heat radiation of water, contact heat exchange with the vessel body and directly with liquid, convective heat exchange. Additional heating (cooling) of the cover 3 can be carried out using heat pipes 9.

The sealing gasket 11 improves the sealing of the vessel 1. The corrugations 7 on the wall of the vessel 1 increase the reliability of the coupling with the lid 3.

The implementation of the double-walled cover 3c increases its strength and thermal protection of the contents of the vessel 1. When the lower wall moves, the spherically concave section 4 downstairs the internal cavity of the cover 3 is evacuated.

The preparation of a food product in the proposed pressure cooker allows to obtain a product with a higher nutritional value and taste, improves its appearance and retains its shape. The yield of the finished product increases by 20%.

Claims (6)

Claims 1. A pressure cooker containing a cooking vessel with handles and a lid, a heater and a heating controller, characterized in that, in order to improve the quality and increase the yield of the finished product, the lid has a flat area at the periphery and a spherically concave center surface the lid has a concave shape and is made of a material with a shape memory effect, and the spherical section is made at least partially with a shape memory effect, the diameter of the cap is smaller than the diameter of the vessel, and stops are made inside the vessel. 2. A pressure cooker according to claim 1, characterized in that the lid is double. 3. A pressure cooker according to claim 1, characterized in that corrugations are made on the inner side surface of the cooking vessel to contact them with the lid. 4. The pressure cooker according to claim 1, wherein, in order to quickly remove the lid and cool the contents of the pressure cooker, it is equipped with a removable heat accumulator. 5. A pressure cooker pop. 1, characterized in that, for the purpose of more rapid heating and cooling of the lid, it has heat pipes placed on flat portions of the lid. 6. A pressure cooker pop. 1, characterized in that marks are affixed on the inner surface of the vessel. FIG. 2 Fy eight 3