1results about How to "Increase the effective stroke" patented technology

The application discloses an engine, which comprises a cylinder head, an air intake mechanism and an idle speed mechanism, the air intake mechanism comprises a plurality of throttle valve assemblies, the idle speed mechanism comprises an air intake mounting base and a driving mechanism, the air intake mounting base is communicated with the throttle valve assemblies, and the driving mechanism is at least partially located in the air intake mounting base and connected with the air intake mounting base; the air intake mounting base is provided with an idle speed air distribution hole, the idle speed air distribution hole is communicated with the throttle valve assemblies, and the driving mechanism controls the air intake amount of the idle speed air distribution hole by controlling the size of the idle speed air distribution hole; the idle speed air distribution hole comprises a preparation interval and an effective interval, when the driving mechanism passes through the effective interval, the driving mechanism is in an effective stroke, when the driving mechanism passes through the preparation interval, the driving mechanism is in a preparation stroke, the sum of the effective stroke and the preparation stroke is a total stroke, and the ratio of the effective stroke to the total stroke is greater than or equal to 0.9 and less than or equal to 1. Through the above arrangement, the effective stroke of the driving mechanism is increased, and the sensitivity of the idle speed mechanism is improved.