Dongfeng Chaolong 42 primary school school bus EQ6750ST long school bus [1] , adhering to the military design and manufacturing concept, the chassis for the Dongfeng school bus chassis, equipped with ABS anti-lock braking system, front wheel disc brakes, engine compartment automatic fire extinguishing device, body The skeleton closed-loop structure is designed in accordance with the latest national school bus regulations. Through rigorous experiments and tests, the performance of this series of school buses is more perfect and reliable.
East wind ultra long big nose school bus, with its reliable security, economic value, comfort and convenience of the occupants of the service, won the user's favorite, has become the model of choice for the majority of users.
Dongfeng Super Dragon School Bus has a comfortable and beautiful interior design. The new school bus also has a full set of video surveillance. “There are video surveillance in the front, rear door, passenger area and driving area of ​​the car so that the whole car has no blind area.†With automatic fire extinguishing device
Chinese brand: | Dongfeng Brand | Manufacturer: | Dongfeng Special Automobile Co., Ltd. |
engine model: | YC4FA130-30 | Engine power: | 95 |
engine capacity: | 2982 | Engine manufacturer: | Guangxi Yuchai Machinery Co., Ltd. |
Engine trademark: | Â | Fuel type: | Diesel |
Overall dimensions ( length / width / height ) : | 7535×2400×2780,3020 | Cargo bed ( length / width / height ) : | × × |
Total mass (Kg) : | 7200 | Load quality: | 0 |
Curb weight (kg) : | 5050 | Rated mass (kg) : | Â |
Rated passenger ( person ) : | 24-43,24-42 | Front passenger ( person ) : | Â |
Cab ( person ) : | Â | Release date: | 20120919 |
Approach angle / departure angle: | 17/9 | Front / rear suspension: | 970/2365 |
Wheelbase (mm) : | 4200 | Axle load: | 3000/4200 |
Axis number: | 2 | The maximum speed (km/h) : | 80 |
Fuel consumption: | 19 | Number of springs: | 3/4 |
Number of tires: | 6 | Tire specifications: | 215/75R17.5 |
Front track: | 1884 | Rear track: | 1586 |
Steering Type: | steering wheel | Starting method: | Â |
Transmission type: | Â | According to the standard: | GB3847-2005, GB17691-2005 State III |
Identification code: | LDT1AC4K××××××××× | ||
other: Â | 1. Optional roof air conditioning ( vehicle height 3020mm); 2. Optional pneumatic swing out door , optional fully enclosed side window ; 3. The car should be equipped with a driving recorder ; 4. Optional after the open door , with After the opening of the door when the rated passenger 24-42; 5.ABS model / manufacturers : CM4XL-4S/4K (4S/4M) / Guangzhou City Bureau of automotive brake technology Development Co., Ltd .; |
The Pressure Reducing Valve is a valve that adjusts the inlet pressure to a certain required outlet pressure and relies on the energy of the medium itself to automatically maintain the outlet pressure. From the point of view of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow velocity and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of decompression. Then, relying on the adjustment of the control and regulation system, the fluctuation of the post-valve pressure is balanced with the spring force, so that the post-valve pressure remains constant within a certain error range.
Pressure Reducing Valve
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