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Gas distribution agencies as an important part of the internal combustion engine , its design is reasonable or not directly related to the dynamic performance of the internal combustion engine , the reliability and durability of the economic performance , emissions performance and work . With the high power of the internal combustion engine , the speed , people have become increasingly demanding of their performance indicators , requirements still steady , reliable work under the conditions of high-speed running , and thus put forward higher requirements of its gas distribution agencies . Gas distribution cam -type line is the agency's core gas distribution , gas distribution cam profile design is one of the important way for organizations to optimize the design of gas distribution . The simulation and experimental study of the internal combustion engine valve train two important means . In this paper, the AVL TYCON software , kinematic and dynamic model of an Engine Valve , and calculated analysis , clear the existing problems of the gas distribution agencies , to resolve the problem , improve the design of the gas distribution cam -type line , simultaneous analysis of the main factors of the cam profile design . Testing the force of the relevant parts of the valve train engine test bench to verify the the simulation effectiveness and feasibility of the design . The research work includes : (1) the establishment of the application TYCON software model of the kinematics and dynamics of Engine Valve , calculation and analysis show that the intake valve plump coefficient low intake cam and tappet contact stress is too large , the exhaust cam the tappet contact stress is too large , the exhaust cam and tappet lubrication ineffective measures and ways to improve the design with Valve Cam solve these problems . ( 2 ) to improve the design of the gas distribution cam -type line of its main influencing factors and optimized design . ( 3 ) combined with Valve Cam proposed to improve the design and prototype line program , processing a new camshaft , 1,3,5 cylinder used in the original program with Valve Cam 2,4,6 cylinder improved design with Valve Cam . Testing the force of the push rod and rocker arm valve train installed in the engine test stand , a comparative analysis of the simulation with the corresponding experimental test results , as well as the cam line improvement before and after the valve train components force changes . Gas distribution agencies stress test experiments to verify the effectiveness of the valve train simulation .
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