Hot runner nozzle tip and hot runner nozzle tip components

A hot runner nozzle tip for delivering a melt stream of moldable material to a mold cavity, the hot runner nozzle tip comprising:

• an inner tip component including
• a base having a channel bore extending therethrough,
• a torpedo having a first tapered portion with a conical-shaped outer surface that radially expands in a downstream direction, a second tapered portion with a conical-shaped outer surface that radially contracts in the downstream direction and an inner extension portion extending between the first and second tapered portions,
• wherein the first tapered portion of the torpedo is surrounded by an expanding portion of the channel bore having a conical-shaped inner surface that radially expands in the downstream direction so as to define a first annular channel segment between the conical-shaped outer surface of the first tapered portion of the torpedo and the conical-shaped inner surface of the expanding portion of the channel bore;
• and
• an outer tip component including
• an attachment portion for connecting the nozzle tip to a hot runner nozzle,
• an outer extension portion projecting from the attachment portion, and
• a bore extending through the attachment portion and the outer extension portion,
• wherein the inner tip component is received in the outer tip component so as to define a second annular channel segment extending in the downstream direction from the first annular channel segment, the second annular channel segment being defined between the inner extension portion of the torpedo and the bore extending through the outer tip component,
• wherein a third annular channel segment is defined between the conical-shaped outer surface of the second tapered portion of the torpedo and an internal tapered surface of a contracting portion of the bore of the outer tip component, the third annular channel segment having a cross-sectional area that decreases in size towards a tip outlet, and
• wherein at least a portion of the first annular channel segment is apportioned into one or more arcuate channel segments by a respective one or more connectors extending between the conical-shaped outer surface of the first tapered portion of the torpedo and the conical-shaped inner surface of the expanding portion of the channel bore, and a cross-sectional area of each of the one or more arcuate channel segments increases in the downstream direction.