FIELD: engine building.
SUBSTANCE: cylinder block head (hereinafter – CBH) with a valve cooling system contains at least one valve hole with guiding sleeve (4). In a case of CBH, at least one additional hole (3) is made, communicating with the valve hole. Guiding sleeve (4) contains grooves (6) on outer and inner diameters. In additional hole (3), tube (8) is installed, supplying a cooling medium to the valve and sealed to the case of CBH. Grooves (6), inner and outer ones, are connected by at least one through hole (5).
EFFECT: increase in the efficiency of cooling of a valve node.
3 cl, 8 dwg
