The Cummins Holset® e supercharger is used on this engine to demonstrate excellent reliability and performance in tests. After plateau high temperature test - still reliable under severe conditions According to the China Truck Network reporter, the entire experiment started from Chengdu, Sichuan Province, passing Dunhuang, Gansu Province, Turpan, Xinjiang, Golmud, Qinghai, and Lhasa, Tibet, and eventually returned to Chengdu. The entire journey lasted nearly 10,000 kilometers and lasted 42 days. The working conditions during the test were particularly harsh: Under the high temperature test, the surface temperature of the Huoyan Mountain in Turpan was close to 65°C; in the plateau experiment, the highest altitude was even reached 5,231 metres (Danggula Pass). Holset® e supercharger operated steadily throughout the entire test without failure. Plateau Torque Increases Nearly 10% - Goods Pull Far More, Run Faster China Truck Network reporter learned that, compared with the traditional bypass valve supercharger of the same type, the Holset® e power is nearly 10% higher than that of the conventional bypass valve supercharger. For the whole vehicle, the plateau power is obviously improved, and the cargo is pulled more. The speed is higher. In the plateau region, as the altitude increases, the air becomes thinner and the engine's intake air volume decreases. The characteristics of the engine plateau calibration is that as long as the smoke level, the exhaust temperature, and the speed of the supercharger exceed the limit value, the oil reduction calibration is required. That is, the torque limit is limited by reducing the fuel injection amount. Therefore, the performance of the engine is affected. Severe index restrictions. The traditional supercharger has a higher temperature in the plateau region, which results in limited engine performance. The Holset® e power-operated supercharger bypass valve is closed to actively compensate the intake air volume, increase the air-fuel ratio of the engine, reduce the exhaust temperature, and greatly increase the engine's altitude capability. Actively controls the closing of the bypass valve in the plateau application, effectively increasing the intake air volume of the engine Compared to conventional bypass valve boosters, Holset® e power changes the bypass valve opening from passive gas activation to active electronically controlled regulation. After receiving the electric signal transmitted by the ECU, the drive linkage mechanism pushes the opening of the bypass valve and actively controls the turbocharger's function to achieve a free adjustment of the intake air volume within a certain range to meet different engine speeds and torques. Demand for air intake. The following diagram fully shows that the Holset® e actively controls the opening of the bypass valve, and the bypass valve is fully closed during plateau applications, effectively increasing the intake of the engine. Tests under harsh conditions such as high temperature plateaus have fully confirmed the excellent quality of the Holset® e power.
The precision machining we usually talk about generally refers to precision CNC Machining, CNC turning, CNC milling, CNC turning and milling composite machining, grinding, wire cutting, EDM machining, etc. The parts obtained by these machining methods can usually achieve relatively high precision and surface finish. Moreover, Precision Machining Parts has a wide selection of materials, and most materials can be used for CNC machining. Since the precision machining parts need to be machined one by one on the machine tool, the cost of mass production is relatively high compared with the parts that are directly formed by the mold. Of course, the most suitable and reasonable processing method to choose mainly depends on the product materials and the requirements of the product itself. SCZY has very rich experience in Precision Machining Parts and CNC Machining Parts ( They are included the stainless steel machining parts, aluminum machining parts, brass machining parts, titanium machining parts, plastic machining parts etc). Our normal machining accuracy can reach ±0.01mm, and for some special requirements, the accuracy can reach ±0.005mm (depending on specific products). We usually choose the most reasonable method according to the drawing requirements and recommend it to customers. Below are some pictures of precision machined parts for reference only.
Precision Machining Parts,Precision Machining Services,CNC Machining Services,CNC Machining Parts,CNC Services Shenzhen SCZY Technology Co.,Ltd , https://www.szcasting.com
Holset® e power booster 
The altitude of 4781 meters Kunlunshankou engine torque comparison 
Comparison of Bypass Valves at Kunlun Yamato Turbocharger at Elevation of 4781m 
Holset® e power meets high plateau heat conditions with high performance
Recently, the National Five N1 engine with a DPF reprocessing route in a well-known automobile factory in China was used for road tests in high-temperature plateau areas.