前言：本文重点讨论影响发动机起动的四大因素,包括气缸压力、最低起动转速、供油、点火正时。介绍改善发动机冷起动的几种装置,提供了在汽车维修、保养、使用中要注意的事项,以供同仁参考。一、影响发动机起动的几个因素分析 (一)、气缸压力发动机正常起动应该保证气缸压力正常,气缸压力由压缩比、气缸的密封性两方面因素共同决定。 Preface: This article focuses on the four factors that affect engine starting, including cylinder pressure, minimum starting speed, fueling, and spark timing. Introduced to improve the engine cold start several devices, provided in the car repair, maintenance, use should pay attention to the matter for colleagues reference. First, the impact of engine starting several factors (a), the normal cylinder pressure cylinder engine start-up pressure should be normal, the cylinder pressure from the compression ratio, the sealing of the two factors jointly determine the cylinder.