TH6638B - Espresso machine for coffee flavoring - Google Patents

Abstract

The finished coffee machine has a brew cylinder (1) with a cylinder bore (2) and two pistons (3,4). The brew cylinder (1) and piston (3,4) are arranged to move relative to each other. each other In the brewing position, the brewing cylinder (1) and the two pistons (3,4) are located behind the brewing chamber (5) in order to blanch the ground coffee inside by the feeding of pressurized water. This water will be fed to the brewing room (5) via a connection device. (18) and through the through holes which pass through the wall of the infusion cylinder (1) into the annular gap (14) formed between the compression plate (11) and the face (13) of the tip of the second piston. (4) facing the brewing chamber (5) through the filter device (32), pipe (34) and connecting device (358). Coffee is released by means of a gap (14) surface (13). of the second piston (4) can be made without filtering device The supply of pressurized water to the gap (19) produces a self-cleaning effect in the latter by the non-filter device design of the surface (13) of the tip of the second piston. (4) Not only can the corroded parts be removed. But it can also produce coffee machines that are more cost-reasonable.

Claims (8)

1. A coffee maker for coffee flavoring, consisting of a brewing barrel (1) with a cylindrical perforated hole (2), a pair of pistons (3,4) installed inside and covered with a perforated hole. Cylinders (2) to form coffee chambers (5), brewing cylinders (1) and pistons (3,4) to move relative to each other. Along the axis of the brewing barrel (16), and on the outer surface Each ball (6,7) of the piston (3,4) has a groove (8,9), which extends around the entire circumference with a compression disc (10,11) inserted, sealing the piston (3,4) relative to the bore. Cylindrical (2), characterized by that at least one piston (4) has a reduced diameter between the tip faces. (13) with its compression plate (11) to provide an annular gap (14) between the piston (4) and the bore (2), whereby the so-called gap (14) is provided. Through the feeding ring And / or the discharge of liquids to and / or out of the coffee room (5) 2. The succession of claim 1 is characterized by that the wall blade (15) of the brewing barrel (1) has at least one through hole (17), which is angled to the axis. (16) of the brewing barrel for feeding And / or the discharge of liquid to And / or leave space (14) 3. The apparatus according to claim 2 makes it unique in that the through hole (17) extends on the far side from the cylinder bore (2) to the device (18) for connection to the pipe. (19) 4. The prefabrication of claim 2 or No. 3 is characterized by the through holes (17) being aligned along the axis (16) of the brewing barrel at the location where the annular gap (14). Of pistons (4) each placed during coffee operation 5. The machine fulfills claim No. 2 or No. 3, making it unique in that each piston (3,4) has an annular gap (14,20) in the area, and with a gap. (14,20) Each through hole (17,21) will be contributed in the form of a gap (14,20), each in the area of the through hole (17,21) during brewing operations. coffee 6. The appliance, fulfilling claim 2, is characterized by the through holes (17,21), directed radially to the bore (2) of the brewing barrel (1). 7. The machine completes claim No. 2 is characterized by the through holes (17,21) being controlled in contact with the bore (2) of the brewing barrel (1). 8. The fitting according to claim 1 is characterized by the face (13,40) of the tip of the piston (3,4), where each ring-shaped gap (17) [sic] is ground. Skin without filter equipment