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U.S. Department of Energy
Office of Scientific and Technical Information

Engine valve operating system for an internal combustion engine

Patent ·
OSTI ID:5959599
This patent describes an engine valve operating system for an internal combustion engine. The system consists of: a driving cam rotatable in timed relation to engine revolution; a rocker arm having a first end section drivingly connected to an engine valve and a second end section drivably connected to the driving cam; an elongated lever pivoted at a first end section and disposed in fulcrum contact with the rocker arm; an apparatus for biasing the rocker arm and the lever away from each other; and a hydraulic actuator having a movable end section which is in contact with a second end section of the lever and movable to control the pivotal location of the lever in accordance with an engine operating condition.
Assignee:
Nissan Motor Co. Ltd., Yokohama
Patent Number(s):
US 4567861
OSTI ID:
5959599
Country of Publication:
United States
Language:
English