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Full function variable gas distribution controlling mechanism of internal combustion engine

A technology for internal combustion engines and control mechanisms, applied to engine components, machines/engines, mechanical equipment, etc., can solve problems such as increasing fuel consumption, failing to achieve the purpose of stopping cylinders, increasing engine burden, etc., to achieve fuel saving, simple structure, and low cost. input effect

Inactive Publication Date: 2009-04-15
刘若丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cylinder deactivation technology is actually a variable gas distribution technology. To achieve cylinder deactivation of the engine, it is not as simple as disconnecting the oil supply to some deactivated cylinders. If the deactivated cylinders are allowed to breathe freely, a pumping effect will be produced, and the pistons will still be on the cylinder. Doing useless work will increase the burden on the engine, but will increase fuel consumption and fail to achieve the purpose of stopping the cylinder

Method used

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  • Full function variable gas distribution controlling mechanism of internal combustion engine
  • Full function variable gas distribution controlling mechanism of internal combustion engine
  • Full function variable gas distribution controlling mechanism of internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0052] Cams with unequal shaped beveled cam heads (Fig. 3, Fig. 5) make the cam profile expandable:

[0053] 1. According to the needs, the stepper motors grouped by the microcomputer ECU control synchronously drive the worm and the worm gear to drive the push arm on the screw ( figure 1 ) or a push ring (fig. 6) to make a variable rocker arm with roller wheels ( figure 1 , Figure 6) Translate on the driven rocker arm, and due to the change in the radial length of the cam slope and the change in the rotation angle between the cam and the roller wheel, the valve timing and valve lift that need to be matched under different engine speed conditions can be adjusted. ;

[0054] 2. Apply this method to the DOHC double camshaft overhead type ( figure 1 , Figure 6) and SOHC single overhead camshaft ( Figure 9 ) These two standard engines are equipped with air distribution.

[0055] 3. For the DOHC double camshaft overhead type, the motor controls the intake variable rocker arm an...

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Abstract

The invention relates to a full-function variable distribution control mechanism of an internal combustion engine, comprising a motor and a worm and worm wheel transmission mechanism. A cam which expands on the inclined surface of a cam head is formed by that a cone part is combined on a cylinder with the parallel axes; a variable rocker axial travelling mechanism is as follows: a screw rod is fixedly arranged on a worm wheel; a pushing arm is screwed on the screwed rod; both a variable rocker and a combined driven rocker arm can be rotatablely arranged on a rocker shaft; and the variable rocker arm is positioned between two arms of the driven rocker arm and an upper groove and a convex semicircle of the pushing arm are contacted with each other; and a roller wheel of the variable rocker arm and the cam head of the cam form a transmission pair. The control mechanism has continuous variable valve timing and valve stroke, which leads the valve to have half-open function, cylinder control variable displacement function and maneuverability of superposition of the variable valve, can replace a throttle valve and applies the high-end change distribution technology and the cylinder control variable displacement to an economic engine, thus having the advantages of increasing the power, saving oil consumption and reducing the exhaust.

Description

technical field [0001] The invention relates to a variable valve mechanism of an internal combustion engine, in particular to an internal combustion engine configuration with continuously variable valve timing and valve lift, which enables the valve to have a half-opening function and a cylinder rest function, and increases the operability of the variable valve superposition amount. air mechanism. Background technique [0002] The gas distribution technology of variable valve timing and valve stroke is an indispensable technical requirement in the field of modern engines. It can play a very important role in the control and optimization of the engine's power characteristics, economic fuel consumption characteristics, and emission characteristics. In addition, the technology of stopping the cylinder is actually a variable valve technology, and the application of the technology of stopping the cylinder is also of great significance to saving fuel consumption and reducing emiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/34
Inventor 刘若丹
Owner 刘若丹
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