The third stroke - acting. At the beginning of the stroke, most of the fuel injected into the combustion chamber is burned. Release when burning a lot of calories, so it's a sharp increase in gas pressure and temperature, the downward movement of the piston marine engine supplier of gas at high temperature and pressure effects, and even the stalk by the crankshaft rotation, external work. Therefore, this stroke also called power or working stroke. With the volume of the piston downward, the cylinder is increased, the pressure drop of gas wholesaler marine engines, working stroke of the piston stroke to the bottom dead center, at the end of the exhaust valve opens. In the animation marine engines, the pressure change in this line of work stroke rises fuel combustion in the cylinder portion represents a sharp increase in pressure, the highest point represents the maximum combustion pressure Pz, this point of pressure and temperature: Pz = 6 ~ 15MPa , Tz = 1800 ~ 2200K maximum combustion pressure and compression end pressure ratio (Pz / Pc), called pressure combustion higher than that with λ expressed. According to the different types of marine diesel engine manufacturers, the range at maximum power prison λ value is as follows: λ = Pz / Pc = 1.2 ~ 2.5. Domestic technology innovation due to the presence of marine diesel engine and a big gap with foreign advanced level, to develop China's shipbuilding industry to achieve the goals of the world's largest shipbuilding country, China's marine diesel engine must adhere to the "innovative introduction - digestion - - Absorption" road, speed up the development of marine equipment power. The overall goal is to introduce the production license, digestion and absorption of technology for diesel, breakthroughs in key technologies, increase production capacity, developed with independent intellectual property rights in 2020, the basic realization of a research institute, diesel machine factory and professional Ship of supporting plant consisting of diesel engine development, production system. Marine engine manufacturers, marine engines, marine engines supplied by Weifang East China Weifang Huadong Engine Co., Ltd. Weifang Huadong Engine Co., Ltd. (www.hdchai.com) strong, credible, in Shandong Weifang engine industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve Weifang Huadong innovative ideas will lead into the brilliant and you work for a better future!