我厂生产的BJ7401发动机单机试车时,在1.8米处的噪声值高达121分贝(A),在原试车房内3米处噪声值为114分贝(A),操作室内的噪声值为95分贝(A),干扰周围工作环境,危害着操作工人的身体健康。为此,我们建了新试车房来治理噪声。通常,发动机试车时的启动、调节等工作,都可在试车房外 The BJ7401 engine produced by our factory had a noise of 121 decibels (A) at a distance of 1.8m when it was commissioned by a single engine. The noise value at 3m in the original test car was 114dB (A) and the operating room noise was 95dB (A ), Interfere with the surrounding working environment, endangering the health of workers. To this end, we built a new test house to manage the noise. Normally, the engine start-up test, adjustment and other work, can be outside the test car