Patent EP-1980152-A1 (EP)
Inventor: KOWALIK GOTTFRIED
IPC: A23L3/18
Filed: 2008-04-10
Abstract: The injector for introducing a vaporous heat carrier (D) into a liquid product (P) such as a food product or beverages e.g. milk, comprises an injector body (6), which has a first inlet (6.3) for the liquid product (P) and a second inlet (6.4) for the vaporous heat carrier (D), a first subjecting chamber (2) having an outlet in the injector body, a ring shaped mixing chamber (2.4), a second subjecting chamber (3) formed between an inner housing (7) and the enclosed injector body, and annular nozzles (4.1, 4.2, 4.3). The flowing of the vaporous heat carrier is effected by decrease in pressure. The injector for introducing a vaporous heat carrier (D) into a liquid product (P) such as a food product or beverages e.g. milk, comprises an injector body (6), which has a first inlet (6.3) for the liquid product (P) and a second inlet (6.4) for the vaporous heat carrier (D), a first subjecting chamber (2) having an outlet in the injector body, a ring shaped mixing chamber (2.4), a second subjecting chamber (3) formed between an inner housing (7) and the enclosed injector body, and annular nozzles (4.1, 4.2, 4.3). The flowing of the vaporous heat carrier is effected by decrease in pressure, which occurs due to the speed of the liquid product. The subjecting chamber is formed as nozzle shape on the entry side and is connected with the first inlet. The mixing chamber is a part of the first subjecting chamber and is formed between a rotationally symmetrical displacement body relocatable in an axial direction on the one side and an enclosed ring shaped inner housing on the other side. The second subjecting chamber is formed between the inner body and the enclosed injector body, and is connected with the second inlet. The annular nozzles are arranged in a distance one behind the other, subjected by the vaporous heat carrier, formed in or on the inner housing and connected with the second chamber. The nozzles discharges the liquid product into the mixing chamber above annular shaped outlets from the side of the enclosed inner housing at an angle of inclination (alpha ) in the same direction towards the direction of flow. A ring shaped lug is formed in the inner chamber in front of the outlet. A passage cross section of the mixing chamber radially cuts outside in such a manner that the passage cross-section of the mixing chamber is minimized. The angle of inclination measured on the longitudinal axes of the mixing chamber is 35 degree. The downstream side contact area of the outlet passes into a revolving chamfer in the inner chamber with respect to the direction of flow of the liquid product. The chamfer has a larger incline against the longitudinal axes of the mixing chamber than the contact area of the inner contact area, which is adjacent downstream to the respective chamfer. The transferring is carried out between the outlet and the revolving chamfer. The inlet of the annular nozzle is enclosed by a distributor ring, which is arranged towards radially outside the inner chamber. The distributor ring has circular holes spaced uniformly from each other, which connect the annular nozzles with the second subjecting chamber. A guide plate with distributor holes is intended in a cone shaped expansion socket adjacent to the second inlet. The cross section of the passage of the expansion socket is completely filled up. The guide plate is folded in a V-shape and the folding edge proceeds in the level of the largest diameter of the cone shaped expansion socket. The inner housing consists of separate housing rings, which are intended over the distributor rings in the region of the annular nozzles. The inner contact area of the body rings is formed in the shape of a frustum. The displacement body tapers behind the first annular nozzle, is parallel to the inner contact area of the inner body and is displaced manually or by motor.