Recently, four CHD622V20STC diesel engines developed by Henan Diesel Heavy Industry Co., Ltd. were issued to overseas users, marking the successful development of China's first successively supercharged high-speed high-power diesel engines and achieving small-scale production.
CHD622V20STC machine is another high-end independent brand of Hechai Heavy Industry following CHD622V20 and CHD622V20CR. Its development has successfully consolidated the company's position in the field of high-speed and high-power diesel engines in China.
CHD622V20STC diesel engine has broken through the overall design technology of high-speed and high-power sequential supercharged diesel engine, compact butterfly valve design technology under high temperature and high pressure in limited space, platform reliability verification technology, controlled supercharger lubrication and oil seal technology, and successive supercharged intelligent control technology. A number of difficulties, fuel economy performance is greatly improved during low-load operation, the operating area is further expanded, and the ship's voyage is improved; the exhaust gas temperature is greatly reduced, which not only improves the reliability at low load, but also reduces the Radiation from the cabin improves the cabin environment. In addition, this type of diesel engine uses multi-supercharger intelligent control technology, which can reduce the smoke value by 60% below 50% load.
In recent years, based on independent research and development, Hechai Heavy Industry successfully developed CHD622V20 and CHD622V20CR diesel engines in 2013 and 2015 respectively, realizing the fundamental transformation from “introduction-digestion-absorption†to “independent research and developmentâ€. The CHD622V20 diesel engine is a high-supercharged diesel engine. It is difficult to match the supercharger to meet the performance optimization requirements of the diesel engine under full operating conditions. In order to expand the low-load operation area of ​​diesel engines, Hechai Heavy Industry focused on the research of CHD622V20 diesel engine sequential supercharger technology, and achieved small-scale production in a short period of time to meet market demand.
CHD622V20STC diesel engine has broken through the overall design technology of high-speed and high-power sequential supercharged diesel engine, compact butterfly valve design technology under high temperature and high pressure in limited space, platform reliability verification technology, controlled supercharger lubrication and oil seal technology, and successive supercharged intelligent control technology. A number of difficulties, fuel economy performance is greatly improved during low-load operation, the operating area is further expanded, and the ship's voyage is improved; the exhaust gas temperature is greatly reduced, which not only improves the reliability at low load, but also reduces the Radiation from the cabin improves the cabin environment. In addition, this type of diesel engine uses multi-supercharger intelligent control technology, which can reduce the smoke value by 60% below 50% load.
In recent years, based on independent research and development, Hechai Heavy Industry successfully developed CHD622V20 and CHD622V20CR diesel engines in 2013 and 2015 respectively, realizing the fundamental transformation from “introduction-digestion-absorption†to “independent research and developmentâ€. The CHD622V20 diesel engine is a high-supercharged diesel engine. It is difficult to match the supercharger to meet the performance optimization requirements of the diesel engine under full operating conditions. In order to expand the low-load operation area of ​​diesel engines, Hechai Heavy Industry focused on the research of CHD622V20 diesel engine sequential supercharger technology, and achieved small-scale production in a short period of time to meet market demand.
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