Transfer passage arrangement for diesel engine having swirl chamber

Patent · Tue Jun 30 00:00:00 EDT 1987

OSTI ID:6121581

Etoh, Y; Sugihara, K; Shioyama, G; Tanaka, T; Kawamura, Y

This patent describes an internal combustion engine a cylinder bore; a piston disposed in the cylinder bore in a manner to define a variable volume combustion chamber; a swirl chamber, the swirl chamber formed by a cavity having two opposite essentially parallel flat sides bounded by a hemi-cylindrical wall portion, and a means for facilitating a turbulence. The turbulence interferes with a main gas swirl; a main transfer port provides fluid communication between the swirl chamber and the main combustion chamber. The main transfer port is arranged to lead the gas compressed during the compression phase tangentially into the swirl chamber so that the gas swirls in a predetermined rotational direction; means defining a swirl chamber center axis, the center axis extends through a center portion parallel to the flat side walls and in a manner to intersect the hemi-cylindrical wall portion; a fuel injector for injecting fuel into the swirl chamber, the fuel injector has an axis and arranged so that a fuel injection nozzle is located upstream of the center axis with respect to the direction in which the gas swirls in the swirl chamber; an auxiliary transfer port leading from the main combustion chamber to the swirl chamber, the auxiliary transfer port has an axis which intersects the axis of the fuel injector at a point located within the swirl chamber on the downstream side of the center axis.

• Assignee: Nissan Motor Co., Ltd., Yokohama
• Patent Number(s): US 4676209
• OSTI ID: 6121581
• Resource Relation: Patent File Date: Filed date 5 Jun 1985
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
DIESEL ENGINES
COMBUSTION CHAMBERS
FUEL INJECTION SYSTEMS
AUXILIARY SYSTEMS
COMPRESSED GASES
COMPRESSION
GAS FLOW
MASS TRANSFER
NOZZLES
PISTONS
ROTATION
TURBULENCE
VORTEX FLOW
WALLS
ENGINES
FLUID FLOW
FLUIDS
FUEL SYSTEMS
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MOTION
330102* - Internal Combustion Engines- Diesel