Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
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13/00
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
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F01L13/0015
for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
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F01L13/0036
the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
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F01L13/0047
the movement of the valves resulting from the sum of the simultaneous actions of at least two cams, the cams being independently variable in phase in respect of each other
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