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Beverage machine with one multifunction valve

A technology for beverage machines and valves, which is applied in the field of overpressure-reducing valves and multi-functional valves, which can solve problems such as insufficient and unreliable operator damage, and achieve the effects of saving assembly costs, saving structural space, and saving material costs

Active Publication Date: 2015-11-25
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this measure, for example, may not be sufficient in a beverage machine with an upward water inlet pointing towards the brewing chamber, as it is disclosed in EP1440910A1
If it is only prone to delayed action, then it cannot be ruled out that the operator is injured when the brewing chamber is opened early

Method used

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  • Beverage machine with one multifunction valve
  • Beverage machine with one multifunction valve
  • Beverage machine with one multifunction valve

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Experimental program
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Embodiment Construction

[0025] according to figure 1 A pad-type beverage dispenser or beverage dispensers shown in principle comprise a fresh water tank 1, which allows fresh water to flow through a liquid feed line 2 via a flow meter 3 and a pump 4 into a heating device 5. . The pump 4 is designed as a one-way device simultaneously, so that the water returns to the water tank when the pump 4 does not operate due to the pressure caused by the heating of the water in the heating device 5, but flows to the direction of the brewing chamber. Between the pump 4 and the heating device 5, there is a pressure-dependent overpressure valve 6, which allows an overpressure generated under certain conditions between the fresh water tank 1 and the heating device 5 to pass through a liquid return Pipeline 7 leads out. According to the invention it can be designed as a "double overpressure valve" as described above and additionally perform a switching action independent of pressure. In the illustrated constructio...

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PUM

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Abstract

The machine has a fresh water tank (1), a heater (5) e.g. low-mass geyser, and a brewing chamber (10) connected with each other by line sections (2). A pressure-dependent automatically switching pressure control valve (6) is provided in the line sections between the water tank and heater, and a bidirectional valve (13) is provided in the line sections before the chamber. The valves are operable in pressure-independent manner and coupled with the chamber such that the valve is opened for a passage in an over-pressure direction when the chamber is opened.

Description

technical field [0001] The invention relates to a beverage machine having a water tank, a heating device, in particular a low-mass continuous heater, and a brewing chamber, which are connected to one another by respective interposed line sections. Upstream of the hot water chamber it includes at least one pressure-dependent automatic switch-on valve, which can be designed as an overpressure valve, especially upstream of the heating device, and / or as a negative pressure valve in the hot water chamber Any position in the upstream pipeline section. The invention also relates to a multifunctional valve and the use of a pressure-dependent automatic opening valve as a pressure-independently actuatable valve for reducing excess pressure. Background technique [0002] DE6607409U1 describes a negative pressure valve in a coffee machine, also between a heating device and a brewing funnel. The low-pressure valve in a coffee machine or a multi-drink machine basically serves the same p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47J31/46
CPCA47J31/46A47J31/461
Inventor J·达伯格J·久斯S·施塔德勒
Owner BOSCH SIEMENS HAUSGERATE GMBH