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Decompression device of single cylinder internal combustion engine

A technology of pressure relief device and internal combustion engine, which is applied in the direction of starting device with manual crank, starting of engine, mechanical equipment, etc.

Inactive Publication Date: 2008-03-26
牛刚学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the pressure relief device provided by this patent, the ratchet wheel is arranged on the starting shaft. Since the rotational speed ratio of the starting shaft and the crankshaft is 1:2, when the ratchet wheel reverses and pushes the ratchet to move to realize the valve opening, the crankshaft is not in position. at the smallest reverse angle, so the unit is not ideal for pressure relief

Method used

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  • Decompression device of single cylinder internal combustion engine

Examples

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Embodiment Construction

[0009] In the figure, a ratchet is arranged on the flywheel 1, a slideway 4 is arranged on the gear case 2, and a connecting rod 5 is connected between the ratchet 3 and the decompression shaft 6.

[0010] When the single-cylinder diesel engine reverses, the ratchet on the flywheel 1 pushes the pawl 3 and the decompression shaft 6 to move, opens the valve, and the pressure of the combustion gas is released, and the reverse force of the crankshaft and the handle is eliminated, avoiding personal injury Accidents happen. The device uses the flywheel of the single-cylinder diesel engine as a ratchet, and the number of ratchets is large. The crankshaft opens the valve at the smallest reverse angle. The potential safety hazard during reversal is eliminated to the greatest extent.

[0011] Slideway 4 among the present invention can also be arranged on cylinder head 7.

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Abstract

The present invention relates to a decompression device of single-cylinder internal combustion engine, belonging to the field of internal combustion engine technology. Said device of formed from flywheel with ratchet, slipway set on the gear box body, click, connecting bar and decompression shaft.

Description

technical field [0001] The pressure relief device for a single-cylinder internal combustion engine of the invention relates to the technical field of internal combustion engines, in particular to the technical field of single-cylinder internal combustion engines. Background technique [0002] At present, when the known single-cylinder internal combustion engine is started with a handle, due to insufficient manpower, the crankshaft cannot reach the starting speed, and the inertia of the flywheel cannot make the piston push back from the fuel injection angle to the top dead center and be pushed back by the combustion gas pressure, causing a reaction. change. After the single-cylinder internal combustion engine reverses, the starter handle also reverses. As a result, the ratio of personal injury accidents is large, which is a potential safety hazard. [0003] Cause the handle to reverse and cause personal injury accidents. The force comes from the pressure generated by the com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N1/02
Inventor 牛刚学
Owner 牛刚学