초록 ▼

Espresso coffee or similar drinks in manual or automatic machines is prepared by causing a forced flow of boiling water to pass through a percolation chamber containing coffee powder, in which an adjustable back pressure is created in the percolation chamber to increase the time of contact between t

Espresso coffee or similar drinks in manual or automatic machines is prepared by causing a forced flow of boiling water to pass through a percolation chamber containing coffee powder, in which an adjustable back pressure is created in the percolation chamber to increase the time of contact between the powder and the water. The machine includes a percolation chamber traversed by hot water and intended to contain coffee powder, a drink exit conduit, in which the conduit is in the form of a nozzle having an outlet throttled by adjustable mechanism, and a downstream emulsifying chamber having an air inlet bore.

대표청구항 ▼

1. A device for preparing espresso coffee or similar drinks, comprisingmeans for feeding hot water, a percolation chamber traversed by hot water and intended to contain coffee powder or coffee powder substitute, and a drink exit conduit, wherein the conduit is in the form of a nozzle, the outlet of

1. A device for preparing espresso coffee or similar drinks, comprisingmeans for feeding hot water, a percolation chamber traversed by hot water and intended to contain coffee powder or coffee powder substitute, and a drink exit conduit, wherein the conduit is in the form of a nozzle, the outlet of which is throttled by adjustable means, and wherein the nozzle opens into an atmospheric pressure chamber which communicates with the outside and in which the liquid falling from a delivery spout is collected.