Device achieving continuously variable valve lift

A valve lift, variable technology, applied in the direction of valve device, lift valve, engine components, etc., can solve the problem of complex system structure, and achieve the effect of simple structure and reasonable design

Inactive Publication Date: 2015-09-16
上海速朗电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Device achieving continuously variable valve lift
  • Device achieving continuously variable valve lift
  • Device achieving continuously variable valve lift

Examples

Experimental program
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Effect test

Embodiment

[0016] Examples of the present invention are figure 1 Shown, the present invention comprises compressor intake pipe 1, compressor 2, engine intake pipe 3, cylinder block 4, cylinder head 5, engine exhaust pipe 6, turbine 7, turbine exhaust pipe 8, catalytic bag 9, exhaust Door 10, intake valve lower section 11, intake valve middle section 12, intake valve upper section 13, control body 14, fixed body 15, first through pipe 16, second through pipe 17, elastic member 18, rotating block 19, rotating Plate 20, connecting plate 21, rotating shaft 22, connecting pipe 23, the air inlet and outlet of compressor 2 are connected with compressor inlet pipe 1, engine inlet pipe 3 respectively, and the inlet and outlet of turbine 7 are connected with engine exhaust pipe 6, turbine respectively. The exhaust pipe 8 is connected, the engine intake pipe 3 and the engine exhaust pipe 6 are connected to the cylinder block 4, the cylinder head 5 is arranged on the cylinder block 4, the exhaust va...

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PUM

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Abstract

The invention belongs to the technical field of internal combustion engines and relates to a device achieving a continuously variable valve lift. The device comprises a lower intake valve section, a middle intake valve section, an upper intake valve section, a control body, a fixing body, penetrating pipes, an elastic component, a rotating plate, a rotating shaft and a connecting pipe, wherein the middle intake valve section penetrates through the rotating shaft, four cavities are formed in the rotating shaft, the middle intake valve section is provided with four ribs, the four ribs of the middle intake valve section are distributed in the four cavities of the rotating shaft respectively, a rotating block is connected with the wall surface of the top end of the second penetrating pipe through the elastic component, one end of the connecting pipe is communicated with the first penetrating pipe, and the other end of the connecting pipe is communicated with an engine exhaust pipe. According to the device, when pressure in the first penetrating pipe is high, the middle intake valve section rotates clockwise, the valve lift becomes larger, and the engine air inflow becomes larger. The device is reasonable in design, simple in structure and suitable for design of an intake valve lift continuous variable system.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and in particular relates to a continuously variable valve lift device capable of realizing continuous variable intake valve lift on the principle of aerodynamics. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/00F01L3/20
Inventor 高军
Owner 上海速朗电子科技有限公司
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