Piston bowl geometries for internal combustion engines

A piston for an internal combustion engine, the piston comprising:

• a piston bowl defined by a floor surface and a rim wall extending from an outer periphery of the floor surface in a system vertical direction to circumferential surround the floor surface, the piston bowl further including:
• a center portion that extends above the floor surface in the system vertical direction,
• a plurality of protrusions extending radially from the center portion and from the floor surface, each of the plurality of protrusions having a starting portion, a terminating portion and an upper surface, the upper surface of the plurality of protrusions continuously tapers in the system vertical direction between the starting portion and the terminating portion, each of the plurality of protrusions are spaced apart such that a spray guide is formed between each of the spaced apart plurality of protrusions, each of the plurality of protrusions and spray guides are tapered so to terminate prior to the rim wall such that a continuous radius portion is formed from a portion of the rim wall and a portion of the floor surface beyond a respective terminating portion of each of the plurality of protrusions and the spray guides,
• wherein each of the plurality of protrusions and the spray guides direct a fuel into the continuous radius portion.