Direct-inject disposal systems

A waste disposal system for use with a sink assembly including a basin and structure defining a drain opening, the waste disposal system comprising:

• a waste disposal unit, comprising a chamber having at least a first end and a second end, wherein the first end of the first chamber is fluidly coupled to the drain opening and the second end is connected to an outlet, and a motorized cutting mechanism housed within the first chamber;
• and
• a fluid-injection unit disposed within or proximate the first end of the waste disposal unit, the direct injection assembly including a structure having:
• a fluid inlet defined on an outer surface thereof, the fluid inlet being coupleable to a fluid source;
• a plurality of vertical protrusions in an annular arrangement;
• and
• a plurality of nozzles each defined between adjacent vertical protrusions and each directed inwardly toward a center of the fluid-injection unit and downwardly toward an interior of the chamber, wherein the fluid-injection unit is configured to direct fluid received from the fluid inlet to the plurality of nozzles to allow a plurality of intersecting fluid streams to enter the chamber.

A sink assembly, comprising:

• a basin comprising a floor and a plurality of sidewalls extending upwardly from the floor, the floor and the plurality of sidewalls defining a reservoir that is configured to receive fluid therein;
• a faucet for dispensing a fluid therefrom;
• a drain opening extending downwardly from the floor of the basin;
• a waste disposal unit comprising a chamber having a cutting or pulverizing unit housed within the chamber, the chamber having at least a first end and a second end, wherein the first end of the first chamber is fluidly coupled to the drain opening;
• and
• a fluid-injection unit disposed within or proximate the first end of the waste disposal unit, the fluid-injection unit including:
• a plurality of vertical protrusions in an annular arrangement;
• and
• a plurality of nozzles each defined between adjacent vertical protrusions and each directed inwardly toward a center of the fluid-injection unit and downwardly toward an interior of the first chamber, wherein the fluid-injection unit is configured to direct fluid received from an external fluid source coupled to the fluid-injection unit to the plurality of nozzles and into the chamber.