Hydraulic circuit for valve operation timing changing device for internal combustion engine

Patent · Tue Jan 03 04:00:00 EST 1989

OSTI ID:6319885

Konno, T

This patent describes a hydraulic circuit for a valve operation timing control device for supplying oil pressure through an oil passage defined in a rocker shaft to an actuator, disposed in rocker arms which are pivotally supported on the rocker shaft for transmitting lifting motion from cams rotating in synchronism with a crankshaft of an engine to valves disposed in intake or exhaust ports of a combustion chamber. This connects one end of the oil passage in the rocker arm with a discharge port of an oil pump and the other end of the oil passage with an oil reservoir release when the actuator is not in operation under at least cold condition.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4794892
• OSTI ID: 6319885
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL
CONTROL EQUIPMENT
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUID MECHANICS
HEAT ENGINES
HYDRAULIC EQUIPMENT
HYDRAULICS
INTERNAL COMBUSTION ENGINES
LIQUID FLOW
LUBRICATION
MACHINE PARTS
MECHANICS
PRESSURE CONTROL
PUMPS
RODS
SHAFTS
TIMING PROPERTIES
VALVES