High-performance oil injection plunger sleeve for cylinder bodies

The invention discloses a high-performance oil injection plunger sleeve for cylinder bodies. The top of a plunger sleeve body extends upwards for forming a locating circular truncated cone, and two locating pin insertion holes are formed in the top of the locating circular truncated cone; a center hole is sequentially divided into an oil injection section, a necking section and a plunger installation section from top to bottom, wherein the diameter of the plunger installation section, the diameter of the oil injection section and the diameter of the necking section are sequentially reduced; an upper circular groove, a middle circular groove and a lower circular groove are formed in the side wall of the plunger installation section, the axis of the middle circular groove is deflected rightwards relative to the center hole, and the axis of the lower circular groove is deflected leftwards relative to the center hole; a left lubricating oil way shaped like the Arabic number 7 is formed in the left side wall of th