Endurance electric bus pump has good quality, good use effect, quality assurance, streamlined design of counterweight and internal design of silencing room. The exhaust is continuous and stable, and there is no knocking sound of moving parts and air blowing sound, which is better than the energy efficiency standard of piston machine 1, and saves energy and electricity. Asymmetric profile is adopted, and the exhaust is continuous and stable. The waist-shaped exhaust port design avoids the capacity loss of over-compression or under-compression. The floor area ratio is as high as 98%, with no friction loss, high mechanical efficiency and no suction and exhaust valves. The main engine has few parts and no wearing parts, and only the air filter needs to be replaced regularly.
The three-dimensional balance technology of moving parts and the centering technology of auxiliary bearings are used to minimize mechanical vibration.