Patent ID: 6270321
Filing Date: 2001-08-07
Classification: B60T,F04F

Abstract:
A sucking jet pump with a tubular casing, the casing having a first air supply nipple at one end and an air discharge nipple at another end and, diverging laterally, a second air supply nipple, two flow channels being designed in the casing, the first flow channel being the jet pump, the second flow channel being a bypass, at least the second flow channel being closed by means of at least one nonreturn valve, an air branching piece being inserted, at that end of the casing which has the first air supply nipple, which the air branching piece connects the first air inlet nipple to the two flow channels, the nonreturn valve for the bypass being inserted into the air branching piece, the first flow channel having a portion of reduced cross section, a suction tube insert projecting into the portion of reduced cross section, a tube which forms the first flow channel being integrally formed onto the air branching piece, the tube being in air flow connection with the second air supply nipple by means of a lateral orifice, and the suction tube insert being inserted into the tube from the side of the air branching piece.