Automatic pressure-relief starting device of multi-cylinder internal combustion engine

A multi-cylinder internal combustion engine, automatic decompression technology, applied in the direction of valve devices, machines/engines, mechanical equipment, etc., can solve the problems of large starting torque, increased cost, reduced starting torque, starting current, etc.

Inactive Publication Date: 2014-05-21
牛刚学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the known multi-cylinder internal combustion engines are all electric starters. When starting, the valves of the internal combustion engines are in a closed state, the starting torque is large, the starting current is large, and the internal combustion engines are developing towards high power, resulting in a high failure rate of the starting system. High-power starters and starters are used. The battery can only solve whether it can be started, which not only increases the cost, but also cannot fundamentally solve the problem
In China, especially the starting system technology of high-power internal combustion engines has always been in a backward state, the reliability of the starting system cannot be guaranteed, and it is almost completely dependent on expensive foreign products
Chinese Patent Publication No.: CN102261274A Automatic decompression device for multi-cylinder internal combustion engines proposes an automatic decompression device for multi-cylinder internal combustion engines to solve this problem. It is an effective technical solution to reduce the starting torque and starting current, but this technical solution cannot be realized in the implementation because the electromagnet is bulky and there is no installation position on the current vehicle

Method used

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  • Automatic pressure-relief starting device of multi-cylinder internal combustion engine
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  • Automatic pressure-relief starting device of multi-cylinder internal combustion engine

Examples

Experimental program
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Effect test

Embodiment 2

[0012] figure 2 The integrated module 9 controls the motor 13 to drive the hydraulic pump 12 to work, and provides hydraulic oil with a certain pressure to the hydraulic master cylinder 7 to push the piston 4 of the hydraulic sub-cylinder 5 to move.

Embodiment 3

[0014] image 3 The part acting on the valve lifter 1 is the plunger 14, and the gas with a certain pressure provided by the pressurized air bag 16 controlled by the solenoid valve 15 acts on the plunger.

Embodiment 4

[0016] Figure 4 A valve cap 17 is installed on the middle valve lifter 1 top, and the active force of the piston 4 acts on the valve cap 17 to open the valve.

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Abstract

The invention discloses an automatic pressure-relief starting device of a multi-cylinder internal combustion engine. An auxiliary hydraulic cylinder is mounted on a valve-chamber cover and located at the upper part of a valve rocker; the auxiliary hydraulic cylinder, a distributor and a main hydraulic cylinder are connected through pipelines; actions of the main hydraulic cylinder are provided by a movable iron core of an electromagnet; and a circuit of the electromagnet is controlled by an integrated module and a starting switch. When the internal combustion engine is required to be started, a valve is switched on by a piston of the auxiliary hydraulic cylinder, and the pressure-relief starting is realized; and with the adoption of the technical measurements, the auxiliary hydraulic cylinder has a very small size and can be mounted on a conventional vehicle structure without change, and accordingly, the pressure-relief starting of the internal combustion engine is realized.

Description

technical field [0001] The automatic decompression starting device for a multi-cylinder internal combustion engine of the invention relates to the technical field of internal combustion engines, in particular to the technical field of starting internal combustion engines. Background technique [0002] At present, the known multi-cylinder internal combustion engines are all electric starters. When starting, the valves of the internal combustion engines are in a closed state, the starting torque is large, the starting current is large, and the internal combustion engines are developing towards high power, resulting in a high failure rate of the starting system. High-power starters and starters are used. The battery can only solve whether it can be started, which not only increases the cost, but also cannot fundamentally solve the problem. In China, especially the starting system technology of high-power internal combustion engines has always been in a backward state, the relia...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F01L13/08
Inventor牛刚学连萌牛锦辉
Owner牛刚学