Combustion device of an internal combustion engine

Patent · Tue Sep 09 00:00:00 EDT 1986

OSTI ID:5286281

Okuma, T

A combustion device of an internal combustion engine is described which consists of: a cylinder, a cylinder head closing one end of the cylinder; and a piston reciprocable in the cylinder; the head and piston having stepped portions adapted to interfit as the piston approaches the head so as to define a compression chamber, and a combustion chamber of greater volume than that of the compression chamber, for receiving a fuel charge, and a restricted passage from the compression chamber to the combustion chamber; the stepped portions comprising means for compressing and combusting a portion of the charge compressed in the compression chamber, as the piston approaches dead center, so as to spread combustion gases and flame through the restricted passage so as to immediately thereafter cause swirling of, and ignition of the portion of the charge in, the gases in the combustion chamber. The head has a cylindrical wall having a central axis, defining therein the combustion chamber. The piston has a forward end having a cross section perpendicular the axis generally in the shape of a figure 8, having first and second circular portions meeting at a center portion. The restricted passage is defined between the center portion and the cylindrical wall.

• Assignee: NOV; NOV-85-024065; EDB-86-175194
• Patent Number(s): US 4610226
• OSTI ID: 5286281
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AUTOMOTIVE FUELS
COMBUSTION CHAMBERS
COMPRESSION
CYLINDERS
DESIGN
ENGINES
EXHAUST GASES
FLAME PROPAGATION
FLUID FLOW
FLUIDS
FUEL SYSTEMS
FUELS
GASEOUS WASTES
GASES
HEAT ENGINES
IGNITION
INTERNAL COMBUSTION ENGINES
PISTONS
VORTEX FLOW
WASTES