IDLE CONTROLLER OF ENGINE

PURPOSE:To control vibration of an engine, in which an intake air recirculating device is provided to control a feed mixture amount and reduce a pumping loss at idle operation, by decreasing a reduction amount of the pumping loss when the engine causes its vibration to at least a prescribed level. C...

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Bibliographic Details
Main Authors KARIYAMA SHIZOU, YATOMI SATOSHI, KOUNO MASAKIMI, MOTOOKA HIROAKI
Format Patent
LanguageEnglish
Published 25.10.1982
Subjects
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:PURPOSE:To control vibration of an engine, in which an intake air recirculating device is provided to control a feed mixture amount and reduce a pumping loss at idle operation, by decreasing a reduction amount of the pumping loss when the engine causes its vibration to at least a prescribed level. CONSTITUTION:In a suction stroke, a mixture passes an intake passage 3 through a throttle valve 7, previously increased its opening, and is fed to a cylinder 1 through an intake valve 4 in an opening state. At this time, an intake air recirculating valve 11 is opened before closing of the intake valve 4 and closed at half timing of a compression stroke with time delay from close timing of the intake valve 4, then the mixture in the cylinder 1 is partially returned to the intake passage 3 through a recirculating passage 10. In the above condition, the engine increases its vibration to feed a signal from a vibration detector sensor 14 through a gate 16, if output is generated from a comparator circuit 18, an open-close valve 12 is closed by an actuator 20 to inhibit recirculation of the mixture.
Bibliography:Application Number: JP19810058754