Left-and-right moving device of mobile rod
A technology of valve lift and left and right movement, which is applied to valve devices, engine components, machines/engines, etc., can solve problems such as complex system structures, and achieve the effect of simple structure and reasonable design
Inactive Publication Date: 2014-12-10
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
However, its design requires a special control structure, and the entire system structure is complex
Method used
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[0013] Such as figure 1 and figure 2 Shown, the present invention comprises: cylinder 1, piston 2, cylinder head 3, air intake passage 4, exhaust passage 5, intake valve 6, exhaust valve 7, air compressor intake pipe 8, air compressor 9, engine air intake pipe 10. Turbine exhaust pipe 11, turbine 12, engine exhaust pipe 13, lever 14, tappet 15, first connecting pipe 16, volume chamber 17, moving body 18, moving rod 19 and second connecting pipe 20, piston 2 Installed in the space surrounded by the cylinder 1 and in sealing contact with the inner wall of the cylinder 1, the air outlet of the intake passage 4 and the intake port of the exhaust passage 5 are all connected with the cylinder head, and the lower end surface of the intake valve 6 , the lower end face of the exhaust valve 7 is all in the combustion chamber, the air inlet and outlet of the compressor 9 are connected with the air outlet of the compressor inlet pipe 8 and the air inlet of the engine inlet pipe 10 respe...
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The invention relates to a left-and-right moving device of a mobile rod in the technical field of mechanical design, and the device comprises an intake valve, an exhaust valve, an air compressor, a turbine, a lever, a tappet, a volume cavity, a mobile body and a connecting pipe; the mobile body is arranged in the volume cavity and is sealed and contacted with the inner wall surface of the volume cavity; a square hole is arranged on the upper wall surface of the volume cavity; the lower end of the mobile rod penetrates through the square hole on the upper wall surface of the volume cavity and is fastened with the upper wall surface of the mobile body; and the upper end of the mobile rod is contacted with the lever. When the pressure of an intake pipe of an engine is quite high, the mobile body drives the mobile rod to move to the right, and the lift of the intake valve is increased; and when the pressure of an exhaust pipe of the engine is quite high, the mobile body drives the mobile rod to move to the left, and the lift of the intake valve is decreased. The left-and-right moving device of the mobile rod has a reasonable design and a simple structure, and is applicable to a valve lift variable system of the engine.
Description
technical field [0001] The invention relates to an engine intake valve lift adjustment system of mechanical design technology, in particular to a left and right moving type valve lift adjustment device of a moving rod. 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, thereby improving the high-speed power and low-speed ...
Claims
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IPC IPC(8): F01L13/00
Inventor 陆振华臧颖恺
Owner SHANGHAI JIAOTONG UNIV