Patent
Variable valve operating apparatus for internal combustion engine
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TLDR
In this article, a variable valve operating apparatus for an internal combustion engine, which can favorably reduce electric power consumption in a vehicle system that may stop the engine during power-up of the vehicle system, is provided.Abstract:
Provided is a variable valve operating apparatus for an internal combustion engine, which can favorably reduce electric power consumption in a vehicle system that may stop the internal combustion engine during power-up of the vehicle system. A changeover mechanism 90 is provided which is capable of switching between a connection state in which a first rocker arm 96 and a second rocker arm 98 are in connection with each other via a changeover pin 112, 118 and a disconnection state in which the connection is released. The changeover mechanism 90 performs energization of actuators 130 for each cylinder in a case in which fuel supply to the internal combustion engine 12 is stopped in response to an establishment of a predetermined stop condition. The above-described energization of the actuator 130 for each cylinder is stopped in a case in which a crankshaft 78 of the internal combustion engine 12 stops rotating during an energization time period of the actuator 130 and in which the crankshaft 78 is not driven by an external power.read more
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Patent
Variable valve gear of internal combustion engine
TL;DR: In this paper, a variable valve gear with small arrangement space was obtained by dividing and forming one tip part side and the other tip side of a rocker arm and making both the divided arm parts detachable according to an engine operation state, in a variable mechanism in which an oscillating fulcrum of the locker arm was made variable and lift amount of an engine valve is made variable.
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