Tag Archives: Bus AC expansion valve leak

Bus AC Expansion Valve Repair Technology Analysis Bus AC expansion valve, as the “throat” and “regulator” of the bus air conditioning refrigeration cycle, directly determines the system’s efficiency and stability. The 2025 issue of the quarterly journal *Commercial Vehicle Thermal Management System Engineering*, No. 4, titled “The Impact of Throttling Device Failure on Refrigeration System […]

Bus AC refrigerant leaks are the most common fault leading to refrigeration performance degradation and even failure. While the symptoms are simple, the root causes are complex, usually pointing to deep-seated defects in system design, manufacturing, use, and maintenance. A 2025 supplement to the *Journal of Automotive Engineering*, titled “Research on Sealing Technology and Reliability […]

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