The oil pressure difference always occurs in the Da Leng compressor at night
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The filters at both the inlet and outlet of the oil pump were cleaned, and the opening degree was adjusted several times on a monthly basis. There are no issues with oil pressure differences during the day, but this problem occurs frequently between 22:00 and 8:00 the next day. I would appreciate any advice or analysis from experts. Thank you
Is it because the temperature is too low, resulting in poor oil and gas separation?
Could it be that the oil temperature drops at night, causing the oil to thicken? Consider replacing the oil filter or adjusting the oil temperature.
The fuel injection temperature varies within 10°C (between the maximum and minimum values). Even by raising the oil temperature by about 45 degrees during operation, this problem persists; the issue with the filter element has not yet been resolved
It only occurs at night, which should be caused by changes in temperature; this is the aspect to focus on.