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通过模拟计算考察了在有液压间隙调节器的气门机构中,柱塞—柱塞套间隙、机油温度、供油压力以及高压腔机油内混气变化对有直动式HLA的某气门机构的动力学特性的影响。结果表明,柱塞—柱塞套间隙、机油温度和压力变化对模拟计算结果影响很小;凸轮轴低转速时,柱塞—柱塞套间隙、机油温度对计算结果的影响比高转速时略大些;HLA高压腔机油混气对气门机构动力学计算结果有很大影响。
Through the simulation calculation, it is investigated that in a valve train with a hydraulic lash adjuster, the piston-to-lash clearance, the oil temperature, the oil supply pressure, The impact of learning characteristics. The results show that the influence of piston-plunger clearance, oil temperature and pressure has little effect on the simulation results. When the camshaft rotates at a low speed, the influence of plunger-plunger clearance and oil temperature on the calculation results is higher than that of the high- Larger; HLA high pressure chamber oil mixed gas valve mechanism dynamics have a great impact.