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涡轮增压车用发动机在世界上已很普及。其优点是:特别是用在柴油轿车上,功率大,性能更好。因此,涡轮增压技术一直在不断发展,以满足多种车用要求。发展技术之一是在涡轮增压器上采用滚珠轴承,以便提高响应能力,减小轴承摩擦损失并有利于转子的转动。现在,浮动金属型滑动轴承已广泛用在涡轮增压器上,并且具有很高的可靠性。然而,特别是在废气能量低的工况下,其摩擦损失不可忽略。另一方面,与滑动轴承相比,滚珠或滚柱轴承的摩擦损失小,大约与空气轴承相等,并且运转可靠。这是石川岛播磨重工业公司的发现,该公司过去一直在船用大型增压器上采用
Turbocharged car engine has been very popular in the world. The advantage is: especially for diesel cars, high power, better performance. As a result, turbocharging technology continues to evolve to meet a variety of automotive requirements. One of the development technologies is the use of ball bearings on turbochargers to increase responsiveness, reduce bearing friction losses and facilitate rotor rotation. Floating metal plain bearings are now widely used on turbochargers and are highly reliable. However, especially in the case of low exhaust gas energy, the friction loss can not be neglected. On the other hand, compared with the sliding bearing, the friction loss of the ball or roller bearing is small, about the same as the air bearing, and the operation is reliable. This is the discovery of Ishikawa Shot Grinding Heavy Industries, which used to be used on large turbochargers