FUEL INJECTION CONTROL ELECTRONIC-MECHANICAL CLUTCH Russian patent published in 2004 - IPC

FIELD: mechanical engineering; diesel engines.

SUBSTANCE: invention relates to devices for automatically changing moment of beginning of fuel injection into cylinders of vehicle diesel engine. Proposed electronic-mechanical clutch has housing, driving clutch member mechanically connected with diesel engine crankshaft and provided with straight splines, driven clutch member with helical splines rigidly coupled with camshaft of hinge-pressure fuel-injection pump, and spring-loaded sleeve installed for axial displacement and connected with driving and driven clutch members through straight and helical splines, and dc motor mechanically connected with step-down reduction gear and electrically coupled with electronic control unit. Clutch is furnished additionally with diesel engine crankshaft position pickup installed in housing over wheel-marker rigidly coupled with driving clutch member, high-pressure fuel-injection pump position pickup installed in housing over second wheel-marker rigidly fitted on camshaft of high-pressure fuel-injection pump. Step-down reduction gear is made in form of worn train whose worm wheel is installed coaxially with camshaft of high-pressure fuel-injection pump and rigidly coupled with two end face hourglass cams which are in constant contact with two rollers hinge secured in forked lever installed for turning in housing and spring-loaded through bushing and thrust bearings.

EFFECT: provision of reliable clutch of compact design.

2 cl, 4 dwg