Two-piston internal combustion engine (JV-2)

Patent · Tue Aug 04 04:00:00 EDT 1987

OSTI ID:6202620

Velencei, J

An internal combustion engine cylinder assembly comprising a first elongated cylinder having substantially vertically disposed interior walls defining an elongated firing chamber. The first piston means hoses within the firing chamber and adapted for vertical reciprocation within the firing chamber. Gas inlet channels means are in the lower portion of the firing chamber. A crankcase housing has gas compression chamber. Valve means adapted to permit fresh fuel/air mixtures to be charged into the gas compression chamber upon the depressuring of the chamber. Second cylinder means positioned at the upper end of the first cylinder and has an exhaust chamber and a second piston means disposed within the exhaust chamber and adapted for vertical reciprocation. Gas inlet channels provide direct gaseous communication between the firing chamber and the converging gas space; the first piston means is arranged to cyclically open and close the gas inlet channels to permit the gaseous communication with the converging gas space. The second piston means is adapted to cyclically open and close the gas exhaust ports to control the removal of exhaust gases from to firing chamber; the first piston means cooperating with the second piston means and the fuel ignition means controls the compression and charging of fresh fuel/air mixtures into the firing chamber from the gas compression chamber. The pressurization in the firing chamber for ignition generates power and removes formed exhaust gases.

• Assignee: NOV; EDB-87-156385; NOV-87-074026
• Patent Number(s): US 4683845
• OSTI ID: 6202620
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CYLINDERS
DEPRESSURIZATION
DESIGN
ENGINES
EXHAUST GASES
EXHAUST SYSTEMS
FLUIDS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPERATION
PISTONS
VEHICLES
WALLS
WASTES