Abstract: The invention relates to a method for injecting an injection molded part made of plastic, using an injection unit having a gate (1) in a nozzle housing (2), the gate (1) being connected to a flow channel (5). According to the invention, the gate (1) is opened and closed by an inner needle (4), and plastic flowing from the flow channel (5) to the gate (1) is predosed and injected by an outer needle (3), and/or a retention pressure is applied to the plastic.

Abstract: The injection nozzle includes a longitudinal flow channel, a plurality of angular channels extending from the longitudinal flow channel (1) in a first direction at an acute angle with respect to the longitudinal axis of the nozzle, and (2) in a second direction at an acute angle with respect to the first direction, an annular channel extending from the angular channels, and a passageway extending from the annular channel to the injection orifice, wherein the angular channels cause a swirling action in the annular channel to flush out resin from the annular channel.