本文根据小功率柴油机的特点,提出了对小功率柴油机可靠性、耐久性的一种试探模底方法:在无人管理、按90%标定功率、日夜连续运转的条件下做全寿命试验(这次试验5000小时),这样能较真实地暴露出柴油机在长期使用过程中可靠性、耐久性的一些问题。本文介绍了这次试验的具体做法与收获。作者通过自己的实践,认为对己经通过样机鉴定,刚开始投入批量生产的柴油机来说,这是一种在样机耐久试验基础上更进一步检验产品可靠性、耐久性的模底试验。试验中暴露出的问题可为进一步改进提高产品可靠性、耐久性提供依据。 According to the characteristics of low-power diesel engine, this paper presents a test-mode approach to the reliability and durability of low-power diesel engine. It performs full-life test under the condition of unmanaged power, continuous operation day and night at 90% 5000 hours of test), which can more truly reveal the reliability and durability of diesel engine in the long-term use. This article describes the specific practices and gains of this experiment. Through his own practice, the author believes that it is a mold bottom test that further tests the reliability and durability of a product on the basis of the prototype durability test on a diesel engine that has just passed the prototype identification and just started mass production. The problems exposed in the test can provide the basis for further improvement and improvement of product reliability and durability.