Method and device for determining eccentric chamfer of air outlet of air intake duct of diesel engine cylinder cover

The invention discloses a method and a device for determining an eccentric chamfer of an air outlet of an air intake duct of a diesel engine cylinder cover. The method is characterized in that the structure of a valve seat and the eccentric chamfer structure of the air outlet of the air intake duct are arranged on a simulated valve seat in a centralized mode, and then the simulated valve seat and an air outlet of a simulated air intake duct are arranged in cooperation with an air cylinder barrel of an airway steady flow test bed, so that the simulated valve seat rotates at different angles to enable the center line of the eccentric chamfer of the simulated valve seat to be located at different positions, and airway steady flow data when the center line of the eccentric chamfer of the simulated valve seat is located at different positions is tested; and after a plurality of simulated valve seats with different eccentric distances and eccentric chamfers are tested, the airway steady flow data of the simulated v