Brewing device for creating a coffee beverage and method for creating a coffee beverage
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A47J-031/36
A23F-005/26
A47J-031/34
A47J-031/44
A47J-031/46
출원번호
US-0913972
(2013-06-10)
등록번호
US-9186017
(2015-11-17)
우선권정보
EP-10405246 (2010-12-23)
발명자
/ 주소
Reyhanloo, Shahryar
출원인 / 주소
Jura Elektroapparate AG
대리인 / 주소
Alston & Bird LLP
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
The brewing device for creating a coffee beverage has a brewing unit having a brewing chamber, a crema unit having a crema chamber connected to the brewing chamber by means of a coffee passage and having a valve piston for opening and/or closing the coffee passage, which valve piston can be moved in
The brewing device for creating a coffee beverage has a brewing unit having a brewing chamber, a crema unit having a crema chamber connected to the brewing chamber by means of a coffee passage and having a valve piston for opening and/or closing the coffee passage, which valve piston can be moved in the crema chamber relative to the coffee passage, and an outlet opening. The valve piston can be moved into a plurality of different specified movement positions relative to the coffee passage, wherein different consecutive brewing processes for creating different coffee beverages can be realized, and wherein the crema unit is designed in such a way that coffee brewed during a particular brewing process can be swirled through at different intensity than a different brewing process depending on the particular specified movement position of the valve piston.
대표청구항▼
1. A brewing device for producing a coffee beverage, wherein the brewing device comprises: a brewing unit with a brewing chamber for brewing coffee with brewing water which can be introduced under pressure into the brewing chamber;a crema unit for creating crema with a crema chamber connected with t
1. A brewing device for producing a coffee beverage, wherein the brewing device comprises: a brewing unit with a brewing chamber for brewing coffee with brewing water which can be introduced under pressure into the brewing chamber;a crema unit for creating crema with a crema chamber connected with the brewing chamber via a coffee passage and a valve piston movable in the crema chamber relative to the coffee passage for opening and/or closing the coffee passage; andan outlet opening for a particular coffee beverage,wherein the crema chamber of the crema unit is connected with the outlet opening by means of an outlet line such that for producing the particular coffee beverage coffee brewed in the brewing unit during a brewing operation is enabled to flow through the coffee passage and the crema chamber and reach the outlet opening,wherein the valve piston is movable such that a movement position of the valve piston is enabled to be altered relative to the coffee passage and the valve piston is configured to be brought into a plurality of different specified movement positions, so that the valve piston in one of the specified movement positions tightly closes the coffee passage and in another of the specified movement positions is at a distance from the coffee passage and does not close the coffee passage,wherein different consecutive brewing operations for producing different coffee beverages can be realized such that the valve piston assumes one of the specified movement positions in one of the brewing operations and another one of the specified movement positions in another one of the brewing operations, and wherein the crema unit is configured such that the coffee brewed during the respective brewing operation is configured to be swirled through the crema chamber at different intensity depending on the respective specified movement position of the valve piston,wherebya final control element which is configured, according to a control signal, to alter the movement position of the valve piston;a pressure sensor for providing a pressure reading for the momentary pressure of the brewing water in the brewing chamber;a control unit which is configured to produce the control signal and supply it to the final control element,wherein the control unit is implemented as a regulator which is configured to receive the pressure reading provided by the pressure sensor and to regulate, during one of the brewing operations, the movement position of the valve piston depending on a pressure setpoint for the pressure of the brewing water in the brewing chamber such that the pressure of the brewing water in the brewing chamber assumes the pressure setpoint. 2. The brewing device according to claim 1, wherein the brewing device comprises a setpoint-setting unit which is configured to produce the pressure setpoint and supply this to the regulator as a default signal. 3. The brewing device according to claim 2, wherein the pressure setpoint is specified by a stored profile, which is associated with a crema of predetermined characteristics. 4. The brewing device according to claim 2, wherein the pressure setpoint is a pressure setpoint static over time. 5. The brewing device according to claim 1, wherein the crema unit and the final control element are arranged in a brewing piston. 6. The brewing device according to claim 1, wherein the crema unit together with the final control element forms a separate assembly, which is spatially separate from the brewing unit, wherein an outlet opening of the brewing chamber is connected with the coffee passage of the crema unit via a pipeline or a tube. 7. The brewing device according to claim 1, wherein the final control element is configured as an electromechanical drive or step motor. 8. A method for producing a coffee beverage with a brewing device, wherein the brewing device comprises: a brewing unit with a brewing chamber for brewing coffee with brewing water, which can be introduced under pressure into the brewing chamber;a crema unit for producing a crema with a crema chamber connected with the brewing chamber via a coffee passage and a valve piston movable relative to the coffee passage for opening and/or closing the coffee passage; andan outlet opening for a particular coffee beverage,wherein the crema chamber of the crema unit is connected with the outlet opening by means of an outlet line such that for producing the particular coffee beverage coffee brewed in the brewing unit during the brewing operation is enabled to flow through the coffee passage and the crema chamber and reach the outlet opening,wherein the valve piston is movable such that a movement position of the valve piston is enabled to be altered relative to the coffee passage and the valve piston is configured to be brought into a plurality of different specified movement positions, so that the valve piston in one of the specified movement positions tightly closes the coffee passage and in another of the specified movement positions is at a distance from the coffee passage and does not close the coffee passage wherein the crema unit is configured such that the coffee brewed during the respective brewing operation is configured to be swirled through the crema chamber at different intensity in the crema chamber depending on the respective specified movement position of the valve piston,wherein the brewing device further comprises:a final control element which is configured, according to the control signal, to alter the movement position of the valve piston;a pressure sensor for providing a pressure reading for the momentary pressure of the brewing water in the brewing chamber;a control unit which is configured to produce the control signal and supply it to the final control element,wherein the control unit is implemented as a regulator which is configured to receive the pressure reading provided by the pressure sensor and, during one of the brewing operations, to regulate the movement position of the valve piston depending on a pressure setpoint for the pressure of the brewing water in the brewing chamber such that the pressure of the brewing water in the brewing chamber assumes the pressure setpoint,wherein for producing a first coffee beverage during realization of a first brewing operation, coffee is brewed in the brewing chamber and during realization of the first brewing operation the pressure sensor provides a first pressure reading for the momentary pressure of the brewing water in the brewing chamber, and the control unit regulates the movement position of the valve piston depending on a first pressure reading,wherein for producing a second coffee beverage during realization of a second brewing operation following the first brewing operation, coffee is brewed in the brewing chamber and during realization of the second brewing operation the pressure sensor provides a second pressure reading for the momentary pressure of the brewing water in the brewing chamber and the control unit regulates the movement position of the valve piston depending on the second pressure reading. 9. The method according to claim 8, wherein the brewing device further comprises a setpoint-setting unit which creates the pressure setpoint and supplies this as a default signal to the regulator, wherein the setpoint created by means of the setpoint-setting unit is specified by a stored profile, which is associated with a crema of predetermined characteristics. 10. The method according to claim 8, wherein after producing the particular coffee beverage and outputting the coffee beverage through the outlet opening, the movement position of the valve piston is set such that any liquid remaining in the outlet line and not output from the outlet opening, in particular the remains of the coffee beverage, flows back into the brewing chamber and/or is sucked back. 11. The method according to claim 10, wherein the brewing device further comprises a coffee sieve, which is provided between the crema unit and the brewing chamber at the coffee passage, and wherein the remaining liquid flows back or is returned from the outlet line through the coffee sieve. 12. The method according to claim 10, wherein the liquid which has flowed back and/or is returned into the brewing chamber, is emptied into a residual water reservoir.
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이 특허에 인용된 특허 (5)
Cai Zhihua (1126 NE. Conser Pl. Corvallis OR 97330), Apparatus for brewing espresso and cappuccino.
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