Method of operating a two-stroke-cycle engine with variable valve timing in a four-stroke-cycle mode

Patent · Tue Jul 21 00:00:00 EDT 1992

OSTI ID:7242706

Richeson, W E

This patent describes a method of operating an internal combustion engine of the type comprising a piston reciprocable in a cylinder, intake port means for admitting air into the cylinder, an exhaust valve that is opened and closed by valve actuator means independent of crankshaft position, spark ignition means, and fuel injection means. It comprises a first stroke wherein the piston moves from BDC to TDC, a second stroke wherein the piston moves from TDC to BDC, a third stroke wherein the piston moves from BDC to TDC, a fourth stroke wherein the piston moves from TDC to BDC.

• Assignee: North American Philips Corp., New York, NY (United States)
• Patent Number(s): US 5131354; A
• Application Number: PPN: US 7-697845
• OSTI ID: 7242706
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPERATION
SPARK IGNITION ENGINES
VALVES