Wuhan bus passenger self-developed equipment engine protection device won the national patent

Half a Meal A large box can protect an engine worth over 70,000 yuan. On the 5th, 20 air-conditioned buses from three local bus companies were equipped with an "automatic engine shutdown safety protection device" developed in-house. Drivers no longer have to worry about "engine overheating" or "oil shortage." On Wuhan Bus No. 712, a reporter observed the device installed next to the dashboard. The system monitors both the fuel tank and the water tank. When there is a lack of coolant or oil, red and green lights flash, and the engine automatically shuts down. In the middle of the road, the driver can turn off the unit, restart the vehicle, and pull over safely. It’s reported that Wuhan’s air-conditioned city buses are all diesel-powered with rear-mounted engines. During winter and summer, when air conditioners are running, the engine faces heavy loads. Drivers often cannot detect early signs of low coolant or dry oil, leading to frequent engine repairs and even sudden breakdowns. In 2003, Wan Zhiming, an engineer at the bus company, developed the engine protection device based on drivers' needs. After thousands of tests, he created a cost-effective solution priced around 500 yuan. On the 4th, the device was granted a national patent. The bus group stated that after successful trial runs, the device will be gradually rolled out to all air-conditioned vehicles in the company. This innovation not only helps save maintenance costs but also improves safety and reliability for both drivers and passengers.

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