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Mechanical type lever proportion regulating mechanism

A proportional adjustment and lever technology, applied in mechanical equipment, machine/engine, engine components, etc., can solve problems such as complex system structure, and achieve the effect of simple structure and reasonable design

Inactive Publication Date: 2013-02-13
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Mechanical type lever proportion regulating mechanism
  • Mechanical type lever proportion regulating mechanism

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Embodiment

[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, connecting pipe 16, volume cavity 17, moving body 18, moving rod 19 and spring 20, piston 2 is installed in cylinder 1 In the enclosed space and in sealing contact with the inner wall of the cylinder 1, the air outlet of the intake passage 4 and the air intake of the exhaust passage 5 are all connected to the cylinder head, the lower end surface of the intake valve 6, the exhaust valve 7 The lower end surfaces of the lower end surfaces of the compressors are all in the combustion chamber, and the air inlet and outlet of the compressor 9 are respectively connected with the air outlet of the compressor inlet pipe 8 and the air inlet of ...

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Abstract

The invention relates to a mechanical type lever proportion regulating mechanism which belongs to the technical field of mechanical design. The mechanical type lever proportion regulating mechanism comprises an inlet valve, an exhaust valve, a gas compressor, a turbine, a lever, a tappet, a volume cavity, a movable body, a connecting pipe and a spring, wherein the movable body is arranged in the volume cavity and hermetically is contact with the inner wall surface of the volume cavity; the upper wall surface of the volume cavity is provided with a square hole; the lower end of a movable rod penetrates through the square hole positioned on the upper wall surface of the volume cavity to be fixedly connected together with the upper wall surface of the movable body, and the upper end of the movable rod is contact with the lever. When the pressure inside the air inlet pipe of an engine is higher, the movable body drives the movable rod to move towards right, and the stroke of the inlet valve is lengthened; when the pressure inside the air inlet pipe of the engine is lower, the movable body drives the movable rod to move towards left, and the stroke of the inlet valve is shortened. The mechanical type lever proportion regulating mechanism disclosed by the invention is reasonable in design, simple in structure and suitable for the valve stroke variable system of the engine.

Description

technical field [0001] The invention relates to a mechanically designed engine intake valve lift adjustment system, in particular to a mechanical lever proportional adjustment mechanism. 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 torque of the engine. [0003] ...

Claims

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Application Information

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IPC IPC(8): F01L13/00
Inventor 李明星侯西安孙耀李青
Owner SHANGHAI JIAO TONG UNIV
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