Unlock instant, AI-driven research and patent intelligence for your innovation.

Priming valve device for water circuit of beverage machine

A technology of water injection valve and beverage machine, which is applied in the field of coffee machine and beverage machine, can solve the problem of several bar back pressure of check valve, and achieve the effect of avoiding leakage problem, simple and reliable equipment

Inactive Publication Date: 2010-08-18
SOC DES PROD NESTLE SA
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem with this prior art is that the check valve creates a back pressure of several bar since it is only able to open under the dynamic pressure generated by the pump

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Priming valve device for water circuit of beverage machine
  • Priming valve device for water circuit of beverage machine
  • Priming valve device for water circuit of beverage machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In Figures 1-3, a priming valve arrangement 1 according to a preferred embodiment is shown. The priming valve comprises a housing assembly 2 comprising two constituent parts joined together to house a valve assembly 3 internally. The priming valve device 1 has a simple structure since only a limited number of components are required to achieve the intended pump priming, waterway pressure control and cleaning / flushing functions.

[0042] The housing assembly 2 comprises a first component or main housing 4, shown in detail in Figures 7-9, and a second component, or low pressure, forming the drain and vent portion of the apparatus, shown in detail in Figures 10-12. Connector 5.

[0043] The main housing 4 has a water inlet 6 comprising a short tube with connection means adapted to connect the water inlet to the piping of the water circuit on the downstream side of an optional pressure pump. The optional pressure pump is usually a piston pump that can deliver high pressur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Priming valve device (1) for beverage machine comprising: a casing assembly (2) including a water inlet (6) a water outlet (7) and a drain and venting portion (5) for discharging water and / or air during priming, a valve assembly (3) associated with the casing assembly which comprises a valve member (9); wherein the same valve member (9) is moveable to a closed position of the water outlet, by elastic return, when the pressure in the inlet decreases under the elastic return pressure of the valve member.

Description

technical field [0001] The present invention relates to a priming valve device capable of ensuring priming of a pump in a waterway. The invention also relates to a beverage machine, such as a coffee machine, comprising such a priming valve arrangement. Background technique [0002] In modern coffee machines, beverages are prepared by passing hot water under pressure through a container or chamber containing the beverage ingredients. Water is pumped from the tank by a pressure pump, such as a piston pump, which pushes the water into a heater for heating, usually a thermobloc, boiler or instant heater, and sprays hot water through the beverage ingredients. The beverage ingredients are extracted or dissolved under pressure and the beverage extract or mixture is released from the container. Pressure pumps can deliver pressures in excess of 5 bar, typically 15 to 20 bar; this pressure depends on the back pressure against which the vessel is opposed, the ingredients (e.g. partic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/04A47J31/46
CPCF16K17/0473A47J31/46Y10T137/2587Y10T137/6606Y10T137/7922Y10T137/2579Y10T137/7869Y10T137/2592Y10T137/2617A47J31/461
Inventor S·埃特尔S·津格
Owner SOC DES PROD NESTLE SA