压力大，动力更大

• 作 者: 纸点车 老车
• 出 处: 汽车知识
• 发表日期: 2009年01期
• 关键词: 增压发动机 进气缸 气缸壁 自然吸气 机械增压器 密封性能 压缩行程 驱动涡轮 发动机曲轴 发动机怠速转速

造成增压发动机性能差异的根本原因和性能提升办法要更深层次了解增压发动机,我们最好先从原理入手,那么所有的问题就都能迎刃而解了。之所以叫增压发动机,其实从字面上就很容易理解其与自然吸气发动机的区别。对于自然吸气发动机来说,空气是在活塞向下运动时被动地吸进气缸当中去的。这就好比我们用注射器抽血一样.由于活塞向下运动产生了一个真空度,那么在大气压力的作用下,空气被挤进了气缸。所以理论上讲,无论活塞与气缸壁的密封性能有多好,

Fundamentals and Performance Enhancement Strategies for Differentiating Engine Performance Diffuser To gain a deeper understanding of supercharged engines, it is best to start with the principles, and then all the problems can be solved. The reason why the supercharged engine is actually literally it is easy to understand the difference between a naturally aspirated engine. For a naturally aspirated engine, the air is passively drawn into the cylinder as the piston moves downward. It’s like we use a syringe to draw blood.As the piston moves downward to create a degree of vacuum, air is forced into the cylinder under atmospheric pressure. So in theory, no matter how good the sealing performance of piston and cylinder wall,