FIELD: engines and pumps.
SUBSTANCE: internal combustion engine cylinder block head is furnished with rocker actuators. Camshafts are arranged so that rockers and cams stay in contact. Camshafts are fixed to allow running in lower bearings and in upper bearings that are made integral with cylinder block head cover. Cylinder block head cover has visual observation ports to allow discern rockers or cams when cylinder block head cover is fixed on cylinder block head. Note here that every upper bearing has semi-circular section to hold camshaft journal. At least one portion of upper bearings is such that at least upper section of semi-circular section of upper bearing is coupled with upper section of semi-circular section of adjacent upper bearing. Covers for aforesaid ports serve to close said ports and are arranged on cylinder block head cover.
EFFECT: ease of maintenance.
13 cl, 5 dwg
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