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An Intensive Locking Type Multi-mode Lever Type Variable Valve Actuation System

A drive system, locking technology, applied in the direction of engine components, machine/engine, valve details, etc., to achieve the effect of improving power performance and high cost performance

Inactive Publication Date: 2019-04-09
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no variable valve drive system that can meet the above requirements at the same time, so the development of a multi-mode variable valve drive system is imminent

Method used

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  • An Intensive Locking Type Multi-mode Lever Type Variable Valve Actuation System
  • An Intensive Locking Type Multi-mode Lever Type Variable Valve Actuation System
  • An Intensive Locking Type Multi-mode Lever Type Variable Valve Actuation System

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Embodiment Construction

[0031] The invention relates to an intensive lock-type multi-mode lever-type variable valve drive system. It includes a valve drive mechanism, a camshaft phase adjustment mechanism 4, a camshaft 3, a mode transmission mechanism, a mode selection mechanism 6, a mode switching mechanism, a valve control mechanism, and a valve adjustment lever. figure 1 It is a schematic diagram of an intensive lock-type multi-mode lever-type variable valve drive system with double-cam drive, double-input, single-output, single-switching, single-valve operation, and single-regulation. The valve driving mechanism includes a first valve driving mechanism 201 . The camshaft 3 is provided with a first cam 301 and a second cam 302 . The mode transmission mechanism includes a first mode transmission mechanism 501 . The first mode transmission mechanism 501 has a first mode transmission mechanism input end 501a, a first mode transmission mechanism output end 501b and a first mode transmission mechanis...

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Abstract

The invention discloses an intensive locking type multi-mode lever type variable air valve driving system and belongs to the field of engine air valve drive. The intensive locking type multi-mode lever type variable air valve driving system mainly comprises a camshaft, a mode transmission mechanism, a mode alternative mechanism, a mode switching mechanism, a camshaft phrase adjusting mechanism, an air valve adjusting lever, an air valve control mechanism and the like. By the cooperative using of the mode switching mechanism and the camshaft phrase adjusting mechanism, switching among a plurality of modes, such as a two-stroke driving mode, a four-stroke driving mode, a two-stroke braking mode and a four-stroke braking mode is achieved. Further by the cooperative using with the air valve control mechanism, the requirement of an engine for the best air change under the different working conditions is met finally, so that the purpose of improving power performance, fuel economy performance, emission performance and braking security performance of the engine is achieved. The intensive locking type multi-mode lever type variable air valve driving system has the characteristics of simple and compact structure, easy arrangement and low cost.

Description

technical field [0001] The invention relates to an intensive lock-type multi-mode lever-type variable valve drive system, which belongs to the field of engine valve drive. Background technique [0002] With the increasingly serious energy and environmental issues, and people's focus on driving and safety of vehicles, future engines need to comprehensively consider power, economy, emissions and safety on the premise of meeting emission standards. This requires optimizing engine performance over the full range of driving and braking conditions. At present, technologies such as variable valve, variable stroke number, cylinder deactivation, auxiliary braking, new combustion mode, variable compression ratio, variable EGR and other technologies that have attracted much attention only affect the performance of the engine in a small range of operating conditions. Make improvements. For example, the existing variable valve technology is only applied to the driving condition of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L13/06F01L13/00F01L1/344
CPCF01L1/34413F01L13/00F01L13/0036F01L13/06F01L2710/003F01L2760/00
Inventor 崔靖晨隆武强杜宝国田华王阳刘威杨添淏
Owner DALIAN UNIV OF TECH
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