JPH036802B2 - - Google Patents
Info
- Publication number
- JPH036802B2 JPH036802B2 JP57103350A JP10335082A JPH036802B2 JP H036802 B2 JPH036802 B2 JP H036802B2 JP 57103350 A JP57103350 A JP 57103350A JP 10335082 A JP10335082 A JP 10335082A JP H036802 B2 JPH036802 B2 JP H036802B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- chamber
- coffee
- temperature
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 116
- 238000000605 extraction Methods 0.000 claims description 27
- 239000000284 extract Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 description 11
- 230000007423 decrease Effects 0.000 description 7
- 238000009835 boiling Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Apparatus For Making Beverages (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
本発明はコーヒ抽出部に熱湯を圧送してコーヒ
のエキスを抽出する加圧式コーヒ抽出装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a pressurized coffee extraction device that extracts coffee extract by force-feeding hot water to a coffee extraction section.
［発明の技術的背景とその問題点］
近時、コーヒの自動販売機として、その機体内
にコーヒ抽出部を設け、この抽出部において定量
のコーヒ粉を加圧し、この加圧したコーヒ粉に一
定の圧力で熱湯を供給し効率よくそのエキスを抽
出し、このエキスにより風味のよいコーヒを顧客
に提供するようにしたものが開発されている（特
公昭50−38994）。[Technical background of the invention and its problems] Recently, coffee vending machines have been equipped with a coffee extractor inside the machine body, pressurizes a fixed amount of coffee powder in the extractor, and extracts the pressurized coffee powder. A system has been developed in which hot water is supplied at a constant pressure to efficiently extract the extract, and this extract is used to provide customers with delicious coffee (Japanese Patent Publication No. 50-38994).
コーヒ抽出部に熱湯を供給する一般的な手段を
第１図に示し、１が発熱体２を備える温水タン
ク、３がコーヒエキスの抽出部、４が熱湯の供給
路、５が水源と連通したシスターンで、上記供給
路４の一端が上記シスターン５に、他端が上記コ
ーヒ抽出部３にそれぞれ接続されている。供給路
４の途中の一部は、螺旋状に捻回するとともに温
水タンク１内の温水中に配置して熱交換部６を構
成し、さらにこの供給路４には、上記熱交換部６
とシスターン５との間に電動式の加圧ポンプ７が
設けられている。しかして温水タンク１内の温水
はサーモスタツト８を介して制御される発熱体２
によりほぼ85℃に保たれ、この状態において一定
の信号に基づいて電動加圧ポンプ７が起動し、こ
れに伴いシスターン５内の水が供給路４を通して
一定の圧力でコーヒ抽出部３に送られる。シスタ
ーン５から流出した水は熱交換部６を流通する間
に、温水タンク１内の温水と熱交換を果して熱湯
となり、この熱湯の状態でコーヒ抽出部３に流入
する。 A general means for supplying hot water to a coffee extraction section is shown in Figure 1, where 1 is a hot water tank equipped with a heating element 2, 3 is a coffee extract extraction section, 4 is a hot water supply path, and 5 is in communication with a water source. At the cistern, one end of the supply path 4 is connected to the cistern 5, and the other end is connected to the coffee extraction section 3. A part of the supply path 4 is twisted spirally and placed in hot water in the hot water tank 1 to form a heat exchange section 6.
An electric pressure pump 7 is provided between the cistern 5 and the cistern 5. The hot water in the hot water tank 1 is heated by a heating element 2 which is controlled via a thermostat 8.
The temperature is maintained at approximately 85°C, and in this state, the electric pressure pump 7 is started based on a certain signal, and the water in the cistern 5 is accordingly sent to the coffee extraction part 3 through the supply path 4 at a certain pressure. . The water flowing out from the cistern 5 exchanges heat with the hot water in the hot water tank 1 while flowing through the heat exchange section 6 to become hot water, and flows into the coffee extraction section 3 in this hot water state.
ところがこのような手段においては、水が熱交
換部６を流通する間にその熱交換部周囲の温水の
温度が低下し、このためコーヒ抽出部３に圧送さ
れる熱湯の温度は、当初は85℃近くの高温である
がその後徐々に低温となつてしまう。そしてこの
ような熱湯によりエキス抽出の一動作が行なわれ
る。コーヒ粉に熱湯を供給して風味のよいエキス
を抽出するためには、そのコーヒ粉にほぼ100℃
近くの高温の熱湯を連続して供給することが極め
て重要であるが、従来のこの種のコーヒ抽出装置
においてはほぼ100℃近くの熱湯を連続的に得る
ことは困難であつた。すなわち例えば湯温を98℃
に保持するためサーモスタツト８の温度を98℃に
設定した場合において外気温度の上昇等が発生す
るとサーモスタツト８の動作温度もそれに伴なつ
て上昇し、100℃を越える状態となる。このため、
このサーモスタツト８に接続された発熱体２は湯
温が上昇し、100℃に達してもサーモスタツト８
のオフ動作がなされず、沸謄状態が継続される。
このようなことから従来のサーモスタツト８にお
いては沸謄などの危険を防止するため85℃前後に
温度を設定するのが通常であつた。したがつて上
記のような温度（85℃前後）に設定され、かつ熱
湯の供給に伴ない熱湯の温度が徐徐に低下してし
まう上記手段では風味のよいエキスを抽出する上
で大きな不利となる。この熱湯の供給に伴なう湯
温の低下に対しては温水を加熱する発熱体２の容
量を増大すればそれをある程度解決できるが、自
動販売機に一般に使用される電源は100V−15A
であるから1KW前後の発熱体を用いざるをえな
いという制約がある。 However, in such a means, while the water flows through the heat exchange section 6, the temperature of the hot water around the heat exchange section decreases, so that the temperature of the hot water pumped to the coffee extraction section 3 is initially 85. The temperature is high, around ℃, but then it gradually becomes colder. An action of extract extraction is performed using such hot water. In order to extract a flavorful extract by supplying hot water to coffee powder, the coffee powder must be heated to approximately 100°C.
Although it is extremely important to continuously supply hot water at a nearby high temperature, it has been difficult to continuously obtain hot water at a temperature close to 100°C with conventional coffee extraction devices of this type. In other words, for example, the water temperature is 98℃.
When the temperature of the thermostat 8 is set at 98°C to maintain the temperature at 98°C, if the outside temperature rises, the operating temperature of the thermostat 8 will also rise accordingly, reaching a state exceeding 100°C. For this reason,
The heating element 2 connected to this thermostat 8 will not work even if the water temperature rises and reaches 100℃.
The boiling state continues without being turned off.
For this reason, in the conventional thermostat 8, the temperature was usually set at around 85° C. to prevent dangers such as boiling. Therefore, the above-mentioned method in which the temperature is set at the temperature (around 85°C) and the temperature of the hot water gradually decreases as the hot water is supplied is at a major disadvantage in extracting a flavorful extract. . This decrease in water temperature caused by the supply of hot water can be solved to some extent by increasing the capacity of the heating element 2 that heats the hot water, but the power supply generally used for vending machines is 100V-15A.
Therefore, there is a restriction that a heating element of around 1KW must be used.
一方、熱湯の供給方法として、温水タンク内の
高温の熱湯を電動式の加圧ポンプで直接コーヒ抽
出部に圧送することが考えられる。しかしなが
ら、この場合においても熱湯が加圧ポンプを流通
する際に、ある程度の温度低下を招いてしまい、
また加圧ポンプは寿命の点からエアーの吸込みを
禁止するとともに圧送する熱湯の温度を87℃以上
に制限されており、高温の熱湯すなわち88℃以上
の熱湯を加圧ポンプで圧送することは困難であ
る。さらにコーヒのエキスを抽出する場合、その
抽出部に一抽出ごと確実に一定量に規制した熱湯
を供給しなければ、その抽出ごとエキスの濃度や
風味が変化してしまい、常時最良のコーヒを提供
することが困難となるが、加圧ポンプを用いる場
合その動作上のばらつきなどによつて常時確実に
熱湯を一定量に規制して供給することが困難とな
る。 On the other hand, as a method of supplying hot water, it is conceivable to directly pump the high-temperature hot water in the hot water tank to the coffee extraction section using an electric pressure pump. However, even in this case, when the hot water flows through the pressure pump, it causes a certain degree of temperature drop.
In addition, pressure pumps are prohibited from sucking air in order to extend their service life, and the temperature of the hot water they pump is limited to 87°C or higher, making it difficult to pump high-temperature hot water, that is, hot water above 88°C. It is. Furthermore, when extracting coffee extract, unless a regulated amount of boiling water is supplied to the extractor for each extraction, the concentration and flavor of the extract will change with each extraction, ensuring the best possible coffee at all times. However, when using a pressure pump, it is difficult to always reliably regulate and supply hot water to a constant amount due to variations in its operation.
［発明の目的］
本発明は上述のような点に着目してなされたも
ので、その目的とするところは、高温の熱湯を連
続して的確にコーヒ抽出部に供給でき、かつその
量を常時確実に一定量に規制することができる加
圧式コーヒ抽出装置を提供することにある。[Object of the Invention] The present invention has been made with attention to the above-mentioned points, and its object is to be able to continuously and accurately supply high-temperature hot water to the coffee extraction section, and to constantly maintain the same amount of hot water. To provide a pressurized coffee extraction device that can reliably regulate the amount of coffee to a certain level.
［発明の概要］
本発明はこのような目的を達成するために、熱
湯を貯留する一次室と、この一次室内の熱湯より
も高温の熱湯を貯留する二次室と、上記一次室内
に連通する計量室とを設け、上記一次室内の熱湯
を一定量に計量して上記計量室内に導入させる計
量導入手段を設け、上記計量室内に導入された熱
湯を吸入してそれを圧送管を通してコーヒ抽出部
に圧送する加圧ポンプを設け、上記計量室内の熱
湯の水位レベルを検知しこの検知に基づき上記加
圧ポンプを制御して計量室内の熱湯をその一部を
残して上記コーヒ抽出部に流入させる検知制御手
段を設け、上記圧送管の途中を螺旋状に捻回して
上記二次室内に臨ませて熱交換部とし、上記加圧
ポンプで吸入した上記計量室内の熱湯を上記熱交
換部を通してコーヒ抽出部に圧送してコーヒのエ
キスを抽出するようにしたものである。[Summary of the Invention] In order to achieve such an object, the present invention provides a primary chamber for storing hot water, a secondary chamber for storing hot water at a higher temperature than the hot water in the primary chamber, and a secondary chamber that communicates with the primary chamber. A measuring chamber is provided, and a metering introduction means is provided for measuring a certain amount of hot water in the primary chamber and introducing it into the measuring chamber, and a coffee extraction section that sucks the hot water introduced into the measuring chamber and passes it through a pressure pipe. A pressure pump is provided to force the hot water into the measuring chamber, and the water level of the hot water in the measuring chamber is detected, and based on this detection, the pressurizing pump is controlled to cause the hot water in the measuring chamber to flow into the coffee extraction section, leaving a part of the hot water. A detection control means is provided, and a part of the pressure feed pipe is spirally twisted to face the secondary chamber to serve as a heat exchange section, and the hot water in the metering chamber sucked by the pressurizing pump passes through the heat exchange section to make coffee. It is designed to extract coffee extract by pumping it to the extraction section.
［発明の実施例］
以下、本発明の一実施例について第２図を参照
して説明する。図中１１は温水タンクで、この内
部は仕切板１２により下部側の一次室１３と、上
部側の二次室１４とに仕切られている。仕切板１
２は上記両室１３，１４内における熱湯の対流に
よる混合は防止するが、その両者の熱湯の僅かな
流出入は許容するようになつている。一次室１３
の内底部には第一の発熱体１５が設けられ、この
発熱体１５はサーモスタツト１６により制御さ
れ、この制御により一次室１３内の熱湯が85℃程
度の一定温度に保たれている。二次室１４内には
第二の発熱体１７が設けられ、またこの二次室１
４の上端部からは蒸気パイプ１８が導出し、この
蒸気パイプ１８が金属製の受熱板１９に接触し、
この受熱板１９にサーモスタツト２０の感熱体２
１が取付けられている。そして二次室１４内に発
生する蒸気が蒸気パイプ１８を流通し、この流通
により受熱板１９が加熱され、その温度が感熱体
２１で感知され、この感知に応じてサーモスタツ
ト２０が動作し発熱体１７が制御され、この制御
により二次室１４内の熱湯がほぼ100℃という高
温の一定温度に保たれている。温水タンク１１の
側面には計量室２２が設けられ、この内部にフロ
ートスイツチ２３が収容され、また温水タンク１
１の側面から導入管２４が導出し、その導出端が
計量室２２内に挿入されている。導入管２４の途
中には電磁式の計量弁２５が設けられ、この計量
弁２５は一定の指令に応じて一次室１３内の熱湯
を一定量に計量し導入管２４を通して計量室２２
内に供給するようになつている。２６は電動式加
圧ポンプで、このポンプ２６からは吸入管２７お
よび圧送管２８が導出し、上記吸入管２７が上記
計量室２２の底面に接続されている。圧送管２８
はその途中を温水タンク１１の二次室１４内に進
入させるとともに、発熱体１７の周囲に螺旋状に
捻回して熱交換部２９を構成している。そしてこ
の熱交換部２９から導出する部分の圧送管２８が
コーヒ抽出部３０に導びかれている。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIG. 2. In the figure, reference numeral 11 denotes a hot water tank, the interior of which is partitioned by a partition plate 12 into a primary chamber 13 on the lower side and a secondary chamber 14 on the upper side. Partition plate 1
2 prevents the hot water from mixing by convection within the two chambers 13 and 14, but allows a small amount of hot water to flow in and out of the two chambers. Primary room 13
A first heating element 15 is provided at the inner bottom of the chamber, and this heating element 15 is controlled by a thermostat 16, which maintains the hot water in the primary chamber 13 at a constant temperature of about 85°C. A second heating element 17 is provided in the secondary chamber 14, and a second heating element 17 is provided in the secondary chamber 14.
A steam pipe 18 is led out from the upper end of 4, and this steam pipe 18 contacts a metal heat receiving plate 19.
The heat sensitive body 2 of the thermostat 20 is attached to this heat receiving plate 19.
1 is installed. The steam generated in the secondary chamber 14 flows through the steam pipe 18, and this circulation heats the heat receiving plate 19. The temperature is sensed by the heat sensitive element 21, and the thermostat 20 is activated in response to this sensing to generate heat. The boiling water in the secondary chamber 14 is maintained at a constant temperature of approximately 100° C. by this control. A measuring chamber 22 is provided on the side surface of the hot water tank 11, and a float switch 23 is housed inside the metering chamber 22.
An introductory pipe 24 is led out from the side of 1, and its leading end is inserted into the metering chamber 22. An electromagnetic metering valve 25 is provided in the middle of the introduction pipe 24, and this metering valve 25 measures the hot water in the primary chamber 13 to a certain amount in response to a certain command, and supplies the hot water through the introduction pipe 24 to the measuring chamber 22.
It is designed to be supplied internally. Reference numeral 26 denotes an electric pressure pump, from which a suction pipe 27 and a pressure feed pipe 28 are led out, and the suction pipe 27 is connected to the bottom surface of the metering chamber 22. Pressure feed pipe 28
enters the secondary chamber 14 of the hot water tank 11 midway, and is twisted spirally around the heating element 17 to form a heat exchange section 29. A portion of the pressure pipe 28 led out from the heat exchange section 29 is led to a coffee extraction section 30.
３１はシスターンで、これは容器３２内にフロ
ート３３を収容してなる。そして容器３２の上部
側壁に給水管が接続し、この給水管３４に給水弁
３５が設けられ、また容器３２の底面から連通管
３６が導出し、この連通管３６が温水タンク１１
の下部側面に接続されている。上記フロート３３
はシヤフト３７を介して可動レバー３８に支持さ
れ、その可動レバー３８に対向してマイクロスイ
ツチ３９が設けられている。 A cistern 31 has a float 33 housed in a container 32. A water supply pipe is connected to the upper side wall of the container 32, a water supply valve 35 is provided to this water supply pipe 34, and a communication pipe 36 is led out from the bottom of the container 32.
is connected to the bottom side of the The above float 33
is supported by a movable lever 38 via a shaft 37, and a micro switch 39 is provided opposite the movable lever 38.
次に作用について説明する。まず、85℃程度に
加熱された一次室１３内の熱湯が計量弁２５によ
り一定量に計量されて計量室２２内に導入され
る。この導入により計量室２２内の水位レベルが
上昇し、それがフロートスイツチ２３により検知
され、この検知に応じて加圧ポンプ２６が起動す
る。加圧ポンプ２６の起動により計量室２２内の
熱湯が吸入管２７を通して順次吸入され、圧送管
２８に圧送される。この際、計量室２２内の熱湯
は85℃程度という加圧ポンプ２６にとつて支障の
ない温度であるから、その熱湯が円滑かつ的確に
吸入され、圧送管２８に圧送される。圧送管２８
に送られた熱湯は、熱交換部２９を流通する間に
二次室１４内に貯留されたほぼ100℃の熱湯と熱
交換してその熱湯とほぼ同等の100℃近くにまで
上昇し、この状態でコーヒ抽出部３０に流入す
る。このようにして計量室２２内の85℃程度の熱
湯がほぼ100℃にまで加熱されて順次コーヒ抽出
部３０に供給され、この熱湯によりコーヒエキス
の抽出が行なわれる。熱湯の供給により計量室２
２内の水位レベルは下降し、一定レベルにまで下
降するとそれがフロートスイツチ２３により検知
され、この検知により加圧ポンプ２６の動作が停
止し、計量室２２内に僅かな量の熱湯が残され
る。このように、計量室２２内に一定量に計量さ
れた熱湯が導入され、そしてその水位レベルの変
化を基にして加圧ポンプ２６が制御され、したが
つて加圧ポンプ２６に動作上のばらつきがあつて
もそれには左右されることなく、コーヒ抽出部３
０には一行程ごと常に一定の熱湯が供給され、ま
た計量室２２内が完全にからとならずに、一定量
の熱湯が残されるから、加圧ポンプ２６がエアー
を不用意に吸い込んでしまうような不都合を確実
に防止することができる。 Next, the effect will be explained. First, hot water in the primary chamber 13 heated to about 85° C. is metered to a certain amount by the metering valve 25 and introduced into the metering chamber 22 . This introduction causes the water level in the metering chamber 22 to rise, which is detected by the float switch 23, and in response to this detection, the pressurizing pump 26 is activated. When the pressurizing pump 26 is activated, the hot water in the metering chamber 22 is sequentially sucked through the suction pipe 27 and is forced into the pressure feeding pipe 28 . At this time, the hot water in the metering chamber 22 is at a temperature of about 85° C., which is not a problem for the pressurizing pump 26, so the hot water is smoothly and accurately sucked in and forced into the pressure feeding pipe 28. Pressure feed pipe 28
While flowing through the heat exchange section 29, the hot water sent to the The coffee flows into the coffee extraction section 30 in this state. In this way, the hot water of about 85° C. in the measuring chamber 22 is heated to approximately 100° C. and is sequentially supplied to the coffee extraction section 30, where coffee extract is extracted using this hot water. Measuring room 2 by supplying hot water
The water level in the metering chamber 22 decreases, and when it reaches a certain level, it is detected by the float switch 23, and upon this detection, the operation of the pressurizing pump 26 is stopped, leaving a small amount of hot water in the metering chamber 22. . In this way, a fixed amount of hot water is introduced into the metering chamber 22, and the pressure pump 26 is controlled based on changes in the water level, so that the pressure pump 26 is free from operational variations. Even if there is a problem, the coffee extraction part 3
0 is always supplied with a constant amount of hot water for each stroke, and since the inside of the metering chamber 22 is not completely emptied and a constant amount of hot water remains, the pressure pump 26 will inadvertently suck in air. Such inconveniences can be reliably prevented.
温水タンク１１内の熱湯はその一部が計量室２
２内に流入するのに伴つて減量するが、この減量
に応じて容器３２内の水が連通管３６を通して温
水タンク１１内に補給される。容器３２内の水の
減量は、フロート３３およびその動作に応動する
マイクロスイツチ３９により検知されこの検知に
応じて給水弁３５が開放され、容器３２内に給水
管３４を通して水源からの水が補給され、これに
より容器３２内の水位レベルが常時一定に保たれ
る。 A portion of the hot water in the hot water tank 11 is stored in the measuring chamber 2.
The amount of water in the container 32 decreases as the amount of water flows into the hot water tank 2, and in response to this decrease, the water in the container 32 is replenished into the hot water tank 11 through the communication pipe 36. The decrease in water in the container 32 is detected by the float 33 and the micro switch 39 that responds to its operation, and in response to this detection, the water supply valve 35 is opened, and water from the water source is supplied into the container 32 through the water supply pipe 34. As a result, the water level in the container 32 is kept constant at all times.
［発明の効果］
以上説明したように本発明によれば、それぞれ
熱湯を貯留する一次室および二次室を構成し、加
圧ポンプの圧送管の途中を上記二次室内に臨ませ
て熱交換部とし、一次室内の熱湯を一定量に計量
して計量室内に導入し、この導入した熱湯の水位
レベルを検知し、この検知を基に加圧ポンプを制
御して計量室内の熱湯を一部を残して圧送管の熱
交換部を通してコーヒ抽出部に圧送するようにし
たから、一次室に加圧ポンプにとつて支障のない
温度の熱湯を、二次室にその熱湯よりも高温の熱
湯を貯留することにより、加圧ポンプを用いて高
温の熱湯を連続して的確にコーヒ抽出部に供給す
ることができ、かつその供給ごとの熱湯の量を常
に一定量に規制することができるという効果を奏
する。[Effects of the Invention] As explained above, according to the present invention, a primary chamber and a secondary chamber are configured to store hot water, respectively, and the pressure pump pipe is exposed into the secondary chamber for heat exchange. The system measures the hot water in the primary chamber to a certain amount and introduces it into the measuring chamber, detects the water level of the introduced hot water, and controls the pressure pump based on this detection to partially drain the hot water in the measuring chamber. Since the pressure is sent to the coffee extraction part through the heat exchange part of the pressure pipe, the primary chamber is filled with hot water at a temperature that does not interfere with the pressurizing pump, and the secondary room is filled with hot water at a higher temperature than the above hot water. By storing the water, high-temperature hot water can be continuously and accurately supplied to the coffee extraction section using a pressurizing pump, and the amount of hot water can be regulated to a constant amount each time it is supplied. play.
第１図は熱湯を供給する一般例を示す構成図、
第２図は本発明の一実施例を示す構成図である。
１３……一次室、１４……二次室、１６，１７
……発熱体、２２……計量室、２３……フロート
スイツチ、２４……導入管、２５……計量弁、２
６……加圧ポンプ、２７……吸入管、２８……圧
送管、２９……熱交換部、３０……コーヒ抽出部
（熱湯供給部）。
Figure 1 is a configuration diagram showing a general example of supplying hot water;
FIG. 2 is a configuration diagram showing an embodiment of the present invention. 13...Primary room, 14...Secondary room, 16,17
...Heating element, 22...Measuring chamber, 23...Float switch, 24...Introduction pipe, 25...Measuring valve, 2
6... Pressure pump, 27... Suction pipe, 28... Pressure feeding pipe, 29... Heat exchange section, 30... Coffee extraction section (hot water supply section).
Claims (1)
湯よりも高温の熱湯を貯留する二次室と、上記一
次室内に連通する計量室とを設け、上記一次室内
の熱湯を一定量に計量して上記計量室内に導入さ
せる計量導入手段を設け、上記計量室内に導入さ
れた熱湯を吸入してそれを圧送管を通してコーヒ
抽出部に圧送する加圧ポンプを設け、上記計量室
内の熱湯の水位レベルを検知しこの検知に基づき
上記加圧ポンプを制御して計量室内の熱湯をその
一部を残して上記コーヒ抽出部に流入させる検知
制御手段を設け、上記圧送管の途中を螺旋状に捻
回して上記二次室内に臨ませて熱交換部とし、上
記加圧ポンプで吸入した上記計量室内の熱湯を上
記熱交換部を通してコーヒ抽出部に圧送してコー
ヒのエキスを抽出することを特徴とする加圧式コ
ーヒ抽出装置。1 A primary chamber for storing hot water, a secondary chamber for storing hot water with a higher temperature than the hot water in the primary chamber, and a measuring chamber communicating with the primary chamber are provided, and the hot water in the primary chamber is measured to a certain amount. A metering introduction means is provided for introducing the hot water into the measuring chamber, and a pressure pump is provided for sucking the hot water introduced into the measuring chamber and pressurizing it through a pressure feeding pipe to the coffee extracting section, thereby adjusting the water level of the hot water in the measuring chamber. and controlling the pressurizing pump based on this detection to cause the hot water in the metering chamber to flow into the coffee extracting section while leaving a part of the hot water in the metering chamber, and twisting the pressure pipe in the middle in a spiral shape. and facing into the secondary chamber as a heat exchange section, and the hot water in the measuring chamber sucked by the pressurizing pump is forced to be sent to the coffee extraction section through the heat exchange section to extract coffee extract. Pressurized coffee extraction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57103350A JPS58221914A (en) | 1982-06-16 | 1982-06-16 | Hot water supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57103350A JPS58221914A (en) | 1982-06-16 | 1982-06-16 | Hot water supply apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58221914A JPS58221914A (en) | 1983-12-23 |
| JPH036802B2 true JPH036802B2 (en) | 1991-01-31 |
Family
ID=14351681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57103350A Granted JPS58221914A (en) | 1982-06-16 | 1982-06-16 | Hot water supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58221914A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5338299B2 (en) * | 2008-12-24 | 2013-11-13 | 富士電機株式会社 | Beverage supply equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424133B2 (en) * | 1973-04-17 | 1979-08-18 | ||
| JPS5722724A (en) * | 1980-06-10 | 1982-02-05 | Illycaffe Spa | Improved brewing apparatus of definite coffee |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842882U (en) * | 1971-09-20 | 1973-06-01 | ||
| JPS517341Y2 (en) * | 1972-10-19 | 1976-02-27 | ||
| JPS5424133U (en) * | 1977-07-20 | 1979-02-16 |
-
1982
- 1982-06-16 JP JP57103350A patent/JPS58221914A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424133B2 (en) * | 1973-04-17 | 1979-08-18 | ||
| JPS5722724A (en) * | 1980-06-10 | 1982-02-05 | Illycaffe Spa | Improved brewing apparatus of definite coffee |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58221914A (en) | 1983-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4575615A (en) | Hot water supplying device | |
| KR101245077B1 (en) | Beverage preparation machines and methods for operating beverage preparation machines | |
| AU2004305012B2 (en) | System for dispensing metered volumes of heated water to the brew chamber of a single beverage brewer | |
| US6000317A (en) | Coffee maker | |
| EP1764014B9 (en) | Thermoblock-based beverage production device with brewing chambers | |
| US20080041231A1 (en) | Method and device for brewing beverages | |
| CN101646822A (en) | The method that is used for the liquid level of definite boiler | |
| EP1944404A1 (en) | A device for supplying superheated water | |
| CN102095249B (en) | Liquid heating device | |
| US3282468A (en) | Hot water supply apparatus | |
| EP3266926A1 (en) | A method of generating steam and a steam generation system | |
| JP2018519126A (en) | Beverage preparation machine | |
| KR950007014B1 (en) | Utility steam generator with self-controlled pressure more particularly for little household electric applicances | |
| CN113876204B (en) | Brewing machine and method for creating identification code of iterative beverage capsule | |
| EP1221570A2 (en) | Steam generator with automatic water loading system | |
| JPH036802B2 (en) | ||
| CA1238073A (en) | Boilers or tanks for hot water | |
| EP1774224A1 (en) | Steaming device, particularly for electric household appliances | |
| JPH035805B2 (en) | ||
| KR100758665B1 (en) | Steam generater having pre-heting system | |
| JPS6331178Y2 (en) | ||
| EP0165907A1 (en) | Machine for making espresso coffee, particularly for domestic use | |
| KR20100112965A (en) | Controlling method of cooking appliance | |
| US20040187693A1 (en) | Method for controlling a drink preparation machine | |
| JP2629930B2 (en) | Electric water heater |