FR2659842A1 - COFFEE MAKER OR TEAPOT PROVIDED WITH A DEVICE FOR MIXING STEAM / BOILING WATER. - Google Patents

Abstract

Coffee or teapot equipped with a device for mixing steam / boiling water, characterized in that provision has been made to install in the flow tube (14) a rectification section (19) provided with filling body (20) , impact rods or the like for mixing steam bubbles (17) and boiling water (18).

Description

"Coffee or teapot fitted with a device for mixing steam / water

  The present invention relates to a coffee maker

  or a teapot with a fresh water tank, a

  circulation heater operating on the principle of gravity, an ascending tube and a flow tube

  opening above the filter holder.

  In coffee makers or teapots of the type

  crit, the boiling water entrainment takes place

  by the rise of the vapor bubbles These bubbles

  steam pushes the heated water back into the tube as-

  hanging in the area of the flow tube, from where

  can then flow into the filter holder which is

ve below.

  First of all, at the beginning of the process

  heating, however, water is still rela-

  tively cold, because when the fresh water tank

  che is full, the riser tube is also filled with water up to the level of the fresh water tank.

  circulation heater cannot heat enough

  this water reserve already in the

riser.

  During the circulation of water,

  more or less regular water jets depending on the success

  over time bubbles of vapor through the rising tube This generally leads to an inlet

discontinuous water.

  The object of the present invention is to improve

  a coffee or tea pot with technical means

  that simple so that the flow of boiling water has a more general flow

  calm and avoid introduction into the wire holder-

  be as large as possible of still relative water-

  cold at the start of the boiling process.

  This problem is solved according to the invention in that it is planned to install in the flow tube.

  a rectification section equipped with replacement bodies

  pleating, impact rods or the like for mixing

  steam bubbles and boiling water.

  Thanks to this technically easy arrangement

  eyelash to be carried out, it is guaranteed that a

  swirl of steam bubbles and water entrained in

  this rectification section, which allows

  ter, on the one hand, the exit of vapor bubbles from the tube

  flow and get a calm process of boiling-

  tion, and to ensure that even at the start of the e-

  boiling, sufficiently heated water is discharged,

  because the vapor bubbles give way to the water when mixing

  age with water, their enthalpy of condensation and so

still heat it.

  Other improvements of the invention are characterized in that: The impact rods extend from the upper wall of the flow tube downward in the section of the flow tube and stop above

  from the bottom wall of the drain tube.

  The impact rods seen in the direction

  longitudinal of the drain tube are arranged

wedged against each other.

  The height and / or shape of the stems

  pact is or is made in different ways.

  The filling bodies are made of

ball shape.

  The filling bodies have the form of hollow cylinders or the like.

  In the accompanying drawings, examples of realizations

  sation of the invention are shown and will be de-

  crits in the continuation, in more detail Thus:

  Figure 1 is a schematic representation

  tick of a coffee or tea maker according to the invention with a rectification section full of filling body,

  Figure 2 is a per-

  spective of a different shaped filling body

  from that of FIG. 1 for a rectification section.

tion,

  Figure 3 is a schematic representation

  tick of a coffee or tea pot with a section of

  grinding fitted with impact rods.

  In Figure 1 is designated by the reference numeral 10 a coffee or tea maker which has a

  cold water container 11, a circulating heater

  tion 12 which works according to the principle of gravity, an ascending tube 13, an upper flow tube

  14, a filter holder 15 and a jug 16 for

pick the filtrate.

  The cold water in the cold water container 11 is heated, after commissioning the

  coffee maker or teapot 10 in the area of re-

  circulation heater 12 and it is driven by the rising tube 13 thanks to the rising vapor bubbles in the area of the upper flow tube 14 o

  boiling water can flow into the filter holder 15.

  In the area of the ascending tube 13 we have re-

  very schematically presented the propulsion of boiling water We represent the bubbles of vapor

  by the reference numeral 17, we designate the water

  trailed by the numerical reference 18.

  This schematic representation already shows that one cannot have a continuous water entrainment in this case, since in a certain way, one

  needs vapor bubbles 17 as a means of

  fert. Then to prevent an exit of the vapor bubbles 17 from the upper flow tube 14, the upper tube 14 was provided with a rectification section 19, in which there are filling bodies, in the form of balls in the mode of realisation of

Figure 1.

  In the area of this rectification section

  cation 19 an increase in pressure takes place and a mixture of the vapor bubbles 17 with the entrained water

  18 Thus takes place a transfer of the enthalpy of con-

  densification of steam in water, which increases the temperature of the water.

  that from the start of the boiling process,

  do enough heated water at the outlet of the tube

  upper flow 14 and, on the other hand, it is guaranteed

  tit that there is no exit of vapor bubbles and

  that thus we avoid the tumultuous unfolding character-

  ristic of the water transfer As one obliges practice-

  the bubbles of steam to mix with the boiling water

  lante, it prevents the exit of the bubbles of vapor That

  leads to a desired calm boiling process.

  In the embodiment of Figure 1,

  as mentioned, filling bodies are used

sage 20 in the form of beads.

  As shown in FIG. 2, it is possible to use filling bodies 20 a in the form of small hollow cylinders, while meaning here

  clearly that fillers can be used

  age of different shape in the rectification area

  19, insofar as it is thus possible to obtain the increase

  pressure thus desired and the realization of the mixture of steam and water. FIG. 3 shows an embodiment of a coffee or tea maker 10, the structure of which corresponds, in principle, to the structure of

  the coffee or teapot in Figure 1.

  As an alternative to the embodiment shown

  tee in figure 1, here we equip the recti-

  fication 19 in the area of the upper tube 14 of impact rods 21, which extend from the upper wall 22 of the flow tube 14 to near the bottom wall 23 of the flow tube 14 In the direction

  flow tube 14, provision has been made for

  install several impact rods 21 placed one behind

  the other, which can be developed differently from

  embodiment presented, in height and / or in form

  me Several impact rods 21 can also be staggered, viewed in the longitudinal direction of the

drain tube.

  Here also the form and location of the ti-

  impact also depends mainly on the mix

  ge of steam and water and the desired pressure increase that can be obtained Here the construction has a multitude of open possibilities, depending on the shape of the section of the flow tube 14, the power of the

  heater 12 or according to other criteria which one chooses

sit in each application case.

  Numerical references Coffee or tea maker 11 Fresh water tank 12 Circulating heater 13 Rising tube 14 Drain tube Filter holder 16 Jug 17 Steam bubbles 18 Water 19 Rectification section Filling body a Filling body 21 Impact rod 22 Upper wall 23 Lower wall

Claims (6)

  1. Coffee or teapot with a tank   fresh water, a circulating heater works   according to the principle of gravity, an ascending tube and a circulation tube opening above a   filter holder, characterized in that the drain tube   ment (14) has a rectification section (19) provided with filling bodies (20, 20 a), impact rods (21) or the like for mixing the bubbles of   steam (17) and boiling water (18).   2. Coffee or tea maker according to the claim   tion 1, characterized in that the impact rods (21)   extend from the top wall (22) of the drain tube   element (14) downwards in the section of the drain tube (14) and stops above the wall   bottom (23) of the flow tube (14).   3. Coffee or tea maker according to the claim   tion 2, characterized in that the impact rods (21) seen in the longitudinal direction of the flow tube   (14) are arranged offset against each other.   4. Coffee maker or teapot depending on which one   conch of claims 2 or 3, characterized in   that the height and / or the shape of the impact rods (21)   is or is done in different ways.   5 Coffee or tea maker according to the claim   tion 1, characterized in that the filling bodies   ge (20) are made in the form of balls.   6. Coffee or tea maker according to the claim   tion 1, characterized in that the filling bodies   ge (20 a) have the form of hollow cylinders or the like.