Gas intake-exhaust device synergistic control system
A collaborative control, intake and exhaust technology, applied in the direction of valve device, engine components, machine/engine, etc., can solve the problems of delayed response speed of valve lift change, liquid leakage, high sealing requirements, etc., to achieve simple structure, well-designed effects
Inactive Publication Date: 2016-12-07
孙志国
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Problems solved by technology
However, its design is to use a hydraulic mechanism, which requires high sealing performance. If the sealing is not tight, it will easily cause liquid leakage; and because the liquid has a certain compressibility, the response speed of the valve lift change has a certain delay.
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[0016] Such as Figure 1 to Figure 5 Shown, the present invention comprises intake manifold 1, compressor 2, intake branch pipe 3, cylinder head 4, cylinder block 5, piston 6, exhaust branch pipe 7, turbine 8, exhaust manifold 9, intake valve lower section 10, Exhaust valve lower section 11, intake valve upper section 12, actuator 13, moving body 14, first through pipe 15, first moving block 16, pull rod 17, control body 18, rotating shaft 19, first spring 20, centrifugal body 21. Ball 22, second spring 23, stretching body 24, second through pipe 25, exhaust valve upper section 26, second moving block 27, intake main pipe 1, intake branch pipe 3 are connected together, exhaust branch pipe 7 , The exhaust manifold 9 is connected together, the compressor 2 is arranged on the intake manifold 1, the turbine 8 is arranged on the exhaust manifold 9, the piston 6 is arranged in the cylinder body 5, the lower section of the intake valve 10, the lower section of the exhaust valve 11 A...
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The invention provides a gas intake-exhaust device synergistic control system which comprises an actuator, a moving body, penetrating pipes, moving blocks, a pull rod, a controlling body, a rotating shaft, centrifugal bodies, springs, rolling beads and a tensile body, wherein the moving body is arranged in the actuator; the penetrating pipes are arranged in the moving body; the moving blocks are arranged in the penetrating pipes; the rotating shaft and the controlling body are fixedly connected together; the rotating shaft is connected with an engine crankshaft through a chain; the first spring, the centrifugal bodies, the rolling beads, the second spring and the tensile body are all arranged in the controlling body; and the longitudinal sections of the centrifugal bodies and the tensile body are all trapezoids. In the gas intake-exhaust device synergistic control system provided by the invention, the valve lift is high when the engine speed is relatively high, and the valve lift is relatively low when the engine speed is relatively low. The gas intake-exhaust device synergistic control system is reasonable in design, simple in structure, and applicable to the optimization design of an engine valve lift variable system.
Description
technical field [0001] The invention relates to a variable valve lift system in the technical field of mechanical design, in particular to a coordinated control system for an intake and exhaust system that is suitable for correlating the valve lift with the engine speed. Background technique [0002] The valve lift of the traditional gasoline engine is fixed and invariable, that is, there is only one cam profile of the camshaft, which makes it impossible for the lift to make the engine respond well in both high-speed and low-speed areas. The valve lift or cam profile design of a traditional gasoline engine is a balanced choice for the engine under all operating conditions. As a result, the engine can neither get the best high-speed efficiency nor the best low-speed torque, but it can get The most balanced performance under all working conditions. The adoption of variable valve lift enables the engine to obtain the required valve lift in both high-speed and low-speed areas, ...
Claims
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CPCF01L13/0015
Inventor 孙志国
Owner 孙志国