Patent · US Active

Fuel injection spray patterns for opposed-piston engines

US8820294B2 · kind B2 · utility

17Cited by
58References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 15, 2011
Grant dateSep 2, 2014
Priority date
Expiry dateMay 21, 2032

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/12
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A combustion chamber for an opposed-piston engine includes a squish zone defined between circumferential peripheral areas of opposing end surfaces of the pistons, a cavity defined by one or more bowls in the end surfaces, and at least one injection port that extends radially through the squish zone into the cavity. The cavity has a cross-sectional shape that imposes a tumbling motion on air flowing from the squish zone into the cavity. Opposing spray patterns of fuel are injected into the combustion chamber. In some aspects, the opposing spray patterns are injected along a major axis of the combustion chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.