V-type block of a crank circular slider mechanism and a cylinder liner, a group of the cylinder liner, mechanical equipment thereof

A V-type block of a crank circular slider mechanism, comprising a piston which has a receiving hole for a circular slider and a circular slider received in the receiving hole, the block having a main journal hole and comprising a group of adjacent cylinders arranged in a V form intersecting in the position of the main journal hole, each of the cylinders in the group of adjacent cylinders extending through the main journal hole respectively, wherein said cylinders each extend through the main journal hole with an axial length beyond the main journal hole, which the axial length is long enough for providing a reciprocating range required for the reciprocating motion of the part of the piston located beneath the receiving hole for the circular slider.