Novel air distribution system with variable lift

A variable lift technology, applied to internal combustion piston engines, engine components, machines/engines, etc., can solve the problems of limited improvement of fuel economy, increased number of motion pairs, and large control torque, etc., to achieve simple structure and optimized performance , the effect of small changes

Active Publication Date: 2009-06-03
CHERY AUTOMOBILE CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The fully variable mechanism currently used is also a new technology in recent years. They also realize the function of continuously variable valve lift through a series of mechanical or hydraulic mechanisms. However, the foreign valve mechanism needs a special one at present. Level control arm, its

Method used

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  • Novel air distribution system with variable lift
  • Novel air distribution system with variable lift
  • Novel air distribution system with variable lift

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Example Embodiment

[0030] In the following, with reference to the drawings, through the description of the embodiments, the specific implementation of the present invention, such as the shape and structure of the various components involved, the mutual position and connection relationship between the various parts, the function and working principle of each part, etc. are further Detailed description:

[0031] As shown in the drawings, the present invention is a new type of variable lift valve system, including hydraulic tappet 1, valve 2, rocker arm 3. The variable lift valve system also includes a transmission gear 7, The adjusting rod 9, the stepping motor 10, the camshaft 6 is arranged between the rocker arm 3 and the adjusting rod 9, the cam of the camshaft is in contact with the rocker arm 3 and the adjusting rod 9, the adjusting rod 9 It is connected with the transmission gear 7, and the transmission gear 7 meshes with the stepping motor 10.

[0032] The rocker arm 3 is configured as a primar...

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Abstract

The invention provides a novel air distribution system with variable lift, which is applied to the field of the internal-combustion engine of the motor vehicle. The novel air distribution system with variable lift comprises a hydraulic tappet (1), an air valve (2) and a rocking arm (3), and further comprises a transmission gear (7), an adjusting rod (9) and a stepping motor (10), wherein, a cam shaft (6) is arranged between the rocking arm (3) and the adjusting rod (9), the cam of the cam shaft is in contact with the adjusting rod (9), the adjusting rod (9) is connected with the transmission gear (7), and the transmission gear (7) is meshed with the stepping motor (10). By adopting the technical scheme, the invention has the advantages that the purpose that the air valve is changed along with the demands of the operating conditions is achieved, and the performance of the engine is optimized to the utmost extent; the structure is simple and compact, and the design is reasonable; and the modification of the engine applying the mechanism is small. Furthermore, the invention is suitable for upgrading for the production products.

Description

technical field [0001] The invention relates to the field of motor vehicle internal combustion engines, and more specifically, the invention relates to a novel variable-lift gas distribution system. Background technique: [0002] With the rise of oil prices and increasingly stringent emission regulations, engines with low pollution, low fuel consumption, high power and high torque are our pursuit goals. The valve train seriously affects the combustion characteristics and emission characteristics of the engine. The valve that controls the engine charge exchange process has three main characteristic parameters: the valve opening phase, the valve opening continuous angle (the crankshaft angle at which the valve remains open) and the valve lift. These three characteristic parameters have a significant impact on engine performance, fuel consumption and emissions. Generally, the valve opening phase and the valve opening duration angle are collectively referred to as valve timing...

Claims

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Application Information

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IPC IPC(8): F01L13/00F02D13/02
CPCY02T10/18Y02T10/12
Inventor 刘和义朱航张志福王润
Owner CHERY AUTOMOBILE CO LTD
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