Espresso machine with dosing mechanism

Abstract

An espresso machine is provided that utilizes a mechanical valve in addition to a flow meter. This results in a low-cost espresso machine while delivering a measured volume of water for the espresso pour. The mechanical valve facilitates a machine with both selectable espresso pour and steam and / or hot water outlets. In this embodiment, the espresso machine utilizes a shared pump and water heater(e.g., a thermoblock, boiler or similar) for multiple functions and / or through different outlets. For example, water from the reservoir may be sent through the flow meter to the pump, then to the water heater, and eventually to either the grouphead or steam wand, or to a pressure release.

Description

technical field [0001] The present disclosure relates to an espresso machine, and more particularly to an espresso machine having a dosing mechanism and a steam wand. Background technique [0002] In a standard espresso machine, the flow of water typically proceeds as follows: tank → pump → heating block → control valve. The control valve then diverts the water to the brewing head of the machine for espresso brewing and then to the main water spout, or to the steam wand for dispensing hot water or steam. Coffee machines known in the art follow two basic spout-selective control valve technologies; solenoid valves or mechanical flow control valves. While solenoid valves provide additional automation, they are expensive, while mechanical valves are inexpensive but lack automation. [0003] Expensive solenoid coffee makers often include a flow meter between the tank and the pump to allow for quantitative metering. The water was measured during the espresso pour, and the pump ...

AI Technical Summary

Problems solved by technology

These constructions are complex, expensive to manufacture and often unreliable due to the large number of components and fixtures within the subassembly to achieve the required functional features

Images