Abstract:

Hand two-stroke gasoline engine is popular in China. The operation life of cylinder, which is a very important part in hand two-stroke gasoline engine, is always less than 800 hours because of its' operation performance, structure, material, as well as surface strengthening technology. Based on tribology, the reason why cylinder doesn't have long operation life is analyzed, and a new type of cylinder plated with two layers of metals is presented in the paper. It is demonstrated that the operation life of the new cylinder will be up to 1000 hours under the existing technical conditions in domestic plants.

Key words: Hand two-stroke gasoline engine, Plating cylinder with two layers of metals