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Engine air filter blockage reminding device

An air filter and reminding device technology, which is applied in the direction of fuel air filter and the like, can solve the problems of unstable negative pressure condition and the alarm device cannot work normally, and achieve the effect of simple and reliable structure.

Active Publication Date: 2012-09-19
ZHEJIANG MARINE DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an engine air filter that provides stable prompt information after the air filter is blocked and the negative pressure in the intake pipe is unstable causing the alarm device to not work normally. clogging reminder device

Method used

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  • Engine air filter blockage reminding device
  • Engine air filter blockage reminding device
  • Engine air filter blockage reminding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Embodiment: a kind of engine air filter clogging reminding device, as figure 1 , figure 2 shown. The device includes a cylindrical shell 19, the inside of the shell 19 is divided into an inner cavity 20 and an outer cavity 21 by a partition 4, and a plurality of through holes 2 are arranged on the wall of the inner cavity 20, and the inner cavity 20 and the engine intake pipe 1 pass through The through hole 2 communicates. A tensioning spring 3 is provided between the inner surface of the partition 4 and the end of the inner cavity 20, and three axial guide strips 5 are provided on the inner wall of the housing 19, and the guide strip 5 is provided on the circumference of the partition 4. Compatible guide groove. The outer surface of the partition 4 is connected with the push rod 8, and the inner end of the push rod 8 is provided with a rotating piece 9, and the rotating piece 9 can be rotatably embedded in the surface of the partition 4 to keep the rotating piece 9 ...

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Abstract

The invention relates to an engine air filter blockage reminding device. The engine air filter blockage reminding device solves the problem that at present, after an air filter is blocked, a negative-pressure condition inside an air inlet pipe is unstable, so that an existing alarm device cannot work normally. The engine air filter blockage reminding device comprises a shell, an outer cavity and an inner cavity communicated with an air inlet pipe of an engine are disposed in the shell, and a partition board is arranged between the inner cavity and the outer cavity. The inner cavity is isolated from the outer cavity at an initial position, and the outer cavity is communicated with the external; when the partition board is driven by change of pressure to move to a reminding position, the inner cavity is communicated with the outer cavity, and the outer cavity is isolated from the external. The reminding device is driven to act due to the change of the inner pressure of the air inlet pipe and cannot move along with further change of the inner pressure of the air inlet pipe after the single action, and a reliable reminding signal is provided. In addition, pressure of the outer cavity is converted by means of switching air pressure channels, electronic equipment or other complicated clamping fixing devices are omitted, and the engine air filter blockage reminding device is simple and reliable in structure.

Description

technical field [0001] The invention relates to an engine air intake structural component, in particular to an engine air filter clogging reminding device. technical background [0002] Long-term use of the air filter of the engine intake pipe and working in a complex environment will easily cause the filter element to be blocked, and the air intake resistance will increase, which will affect the intake air volume of the engine and affect the engine power. At this time, the filter element needs to be cleaned or replaced. [0003] At present, there is a device for prompting the blockage of the engine air filter, such as the patent No. CN201013495Y announced by the Chinese Patent Office on January 30, 2008, which is called an automatic alarm sensor for the blockage of the air filter. The shell and the switch base are bonded together, and the two terminals in the switch base are respectively provided with static contacts communicating with them, and the shell is equipped with m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/09
Inventor 周枫郑斌钟明杰陆阿定王维伦季建於斌傅光明
Owner ZHEJIANG MARINE DEV RES INST
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