Varying geometric compression ratio engine

Patent · Tue May 22 00:00:00 EDT 1984

OSTI ID:5339226

Williams, G J

An automotive engine having an automatically adjusted geometric compression ratio, wherein the charge is compressed to maximum permissible values under all throttle settings. This is achieved by a cylindrical valve carrier, raised or lowered by a screw jack, while valve stem contact is maintained by a fast acting hydraulic valve actuator. The compact arrangement provides an engine profile which is not significantly taller than a standard overhead cam engine.

• Assignee: EDB-85-156336
• Patent Number(s): US 4449489
• OSTI ID: 5339226
• Resource Relation: Patent Priority Date: Priority date 21 May 1981, Canada; Other Information: PAT-APPL-266086
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AUTOMOBILES
INTERNAL COMBUSTION ENGINES
COMPRESSION RATIO
HYDRAULIC CONTROL DEVICES
COMBUSTION CHAMBERS
CYLINDERS
DESIGN
FUEL INJECTION SYSTEMS
GEOMETRY
VALVES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL SYSTEMS
HEAT ENGINES
MATHEMATICS
VEHICLES
330100* - Internal Combustion Engines