Full framework's engine valve oil seal

The utility model discloses a full framework's engine valve oil seal, including the metal framework and the rubber body, its metal framework is cascaded cylinder first ladder, second ladder, third ladder, lower part have a disk plane, the whole inboards of vulcanizing at first ladder, second ladder of the rubber body, the internal chamber of rubber also is the stairstepping, and the valve guide who links together with it including the valve stem ring sum encircles, have top seal main lip and valve stem interference fit in the design of valve stem intra -annular side, it also is interference fit that there are vice lip and valve stem in the lower part, have the first sealed seal lip on upper portion and a second seal lip of lower part in the side design of valve guide intra -annular, first sealed seal lip and second seal lip all with valve guide interference fit. The disk plane as valve spring retainer, the external diameter of third ladder matches with valve spring. The utility model discloses solve the fatig