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A device for adjusting the height of the gas port of an internal combustion engine

A technology of height adjustment device and internal combustion engine, which is applied in the direction of fuel air intake, combustion air/combustion-air treatment, charging system, etc., and can solve problems such as large impact on system integrity, difficult processing, and complex structural design

Inactive Publication Date: 2020-10-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above technologies are relatively complex in terms of structural design, and usually require substantial changes to the engine structure, which is difficult to process, and are all integral designs, which have a relatively large impact on the integrity of the system

Method used

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  • A device for adjusting the height of the gas port of an internal combustion engine
  • A device for adjusting the height of the gas port of an internal combustion engine
  • A device for adjusting the height of the gas port of an internal combustion engine

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Such as Figure 1-4 As shown, the embodiment of the present invention discloses a device for adjusting the height of the gas port of an internal combustion engine, which is used for a two-stroke internal combustion engine adopting a gas port type ventilation structure, including:

[0033] A driving part, the driving part may be a motor 14;

[0034] A reduction assembly, the output shaft of the motor 14 is connected to the input end of the reduction ass...

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Abstract

The invention discloses a height adjustment device for a gas port of an internal-combustion engine. The gas port is formed in the sidewall of a cylinder. The height adjustment device comprises a drivepart, a speed reduction assembly, a height adjustment part, a controller and a position sensor, wherein an output end of the drive part is connected with an input end of the speed reduction assembly,and an output end of the speed reduction assembly is a turbine; the height adjustment part comprises an adjustment rod and a sleeve, one end of the adjustment rod is connected with the center of theturbine, the other end of the adjustment rod is connected with an adjustment part, and the adjustment part is arranged in a manner of deflecting from the position of the central axis of the adjustmentrod; the sleeve sleeves a part close to the gas port, of the outer sidewall of the cylinder, and is slidably connected with the outer sidewall of the cylinder, a connection element is arranged on theouter sidewall of the sleeve, and the adjustment part is slidably connected with the connection element; the controller is electrically connected with the drive part; the position sensor is arrangedat a shaft end of the turbine, acquires the position of the sleeve and transmits the position information to the controller; and the controller converts eccentric rotation of the adjustment rod to linear movement of the sleeve, and then realizes adjustment for the height of the gas port.

Description

technical field [0001] The invention relates to a device for adjusting the height of the gas port of an internal combustion engine, and more specifically relates to a device for adjusting the height of the gas port of an internal combustion engine using a two-stroke gas port type ventilation mechanism, which belongs to the technical field of internal combustion engines. Background technique [0002] The height of the air port is the length of the air port along the central axis of the cylinder, and the width of the air port is the length perpendicular to the central axis of the cylinder and arranged along the circumferential direction of the cylinder; the internal combustion engine of the two-stroke air port type ventilation mechanism controls the intake and exhaust by the position of the piston. Mouth opening area. Studies have shown that the height of the gas port can affect the opening area of ​​the gas port, the opening and closing time of the intake and exhaust ports, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M35/10
CPCF02M35/10006
Inventor 张付军刘宇航鲁雪田赵振峰刘桐
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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