{
  "$type": "site.standard.document",
  "description": "A piston having a piston body with an upper end opposite a lower end, between which a center axis extends. The piston body includes a piston bowl having a piston bowl surface with a half section profile that includes a central bottom portion and a target side wall that extends between first and…",
  "path": "/patents/1416667",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B17/005",
    "CUMMINS INC [US]"
  ],
  "textContent": "A piston having a piston body with an upper end opposite a lower end, between which a center axis extends. The piston body includes a piston bowl having a piston bowl surface with a half section profile that includes a central bottom portion and a target side wall that extends between first and second separation cliffs. The central bottom portion extends radially at a central slope from the center axis to the first separation cliff. The target side wall extends at a slope that is different from the central slope. The target side wall receives fuel from a fuel injector at a spray angle that avoids contact with the first separation cliff for better fuel to air mixing to delay peak of combustion rate. The second separation cliff extends at a slope that directs the fuel plume away from and detaches from the second separation cliff for peak combustion.",
  "title": "A PISTON FOR RECIPROCATING WITHIN A CYLINDER IN AN INTERNAL COMBUSTION ENGINE"
}