Ceramic composite cylinder

The invention provides a ceramic composite cylinder. The ceramic composite cylinder comprises a cylinder liner and a cylinder shell which are sequentially arranged from inside to outside, wherein an interlayer protecting sleeve is arranged outside the cylinder liner; and a cooling structure is arranged between the interlayer protecting sleeve and the cylinder shell. The ceramic composite cylinder provided by the invention has the advantages that on one hand, the interlayer protecting sleeve is adopted for adhering to the outer side of the ceramic cylinder liner, thereby guaranteeing the rigidity of the ceramic cylinder liner and prolonging the service life of ceramic composite cylinder; and on the other hand, the metal interlayer protecting sleeve is adopted for separating the cylinder liner from the outer structure when the cylinder liner cracks, thereby avoiding material pollution and an impact on a cooling structure. 本发明提供种陶瓷复合筒体，包括由内到外依次设置的筒体内胆和筒体外壳，所述筒体内胆外侧设有夹层保护套，所述夹层保护套和筒体外壳之间设有冷却结构。本发明提供的种陶瓷复合筒体，采用在陶瓷