Arbitrary overturn four-stroke cycle engine

A four-stroke engine, engine air intake technology, applied in the direction of engine components, machine/engine, engine lubrication, etc., can solve problems such as poor lubrication effect, improve lubrication effect, improve reliability and consistency, and avoid backflow Effect

Inactive Publication Date: 2013-07-31
SUMEC HARDWARE & TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of poor lubricating effect existing in the existing four-stroke small gasoline engine, and to invent a random flip four-stroke engine that can effectively improve the lubricating efficiency and improve its working performance

Method used

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  • Arbitrary overturn four-stroke cycle engine
  • Arbitrary overturn four-stroke cycle engine
  • Arbitrary overturn four-stroke cycle engine

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 , 2 shown.

[0023] A kind of arbitrarily overturning four-stroke engine, comprises: diaphragm carburetor 9 (can adopt existing commercially available product to realize), by the pressure pulse pumping fuel of engine crank chamber, excess fuel is circulated to fuel tank (as figure 2 );

[0024] The oil storage chamber 10 is used to seal and store lubricating oil and is equipped with an oil mist generating device inside, and the crankshaft drives the oil mist generating device to generate lubricating oil mist;

[0025] Crankcase 11, check valve 8 is arranged at the bottom (reed structure can be adopted, as figure 1 As shown), the check valve 8 communicates with the valve control chamber 7. When the pressure rises, the check valve 8 opens, and when it drops, it closes; the lower part of the crankcase 11 is provided with an o...

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Abstract

A freely-overturnable four-stroke engine includes: a diaphragm carburetor (9) pumping fuel by the pressure pulses in a crankcase (11) of the engine and conveying surplus fuel to a fuel tank; an oil reservoir (10) for the sealed storage of lubricant oil which is fitted with an oil mist generator driven by a crankshaft (14) to generate lubricant oil mist; a crankcase (11) which communicates with an air valve control chamber (7) by a one-way valve (8) set in the lower part of said crankcase (11) and which opens when pressure increases in the crankcase (11) or closes when said pressure decreases; an air valve control chamber (7) provided with an air valve control device and an oil-gas separation device. The upper part of the air valve control chamber (7) communicates with atmosphere while the lower part of said chamber (7) communicates with the oil reservoir (10) through an oil return channel (3), an oil inlet channel (13) being arranged on a cylinder wall of the cylinder (2) to communicate with the oil reservoir (10). The lubrication effect and working performance of the engine are improved while the occurrence of oil spraying is eliminated.

Description

technical field [0001] The invention relates to an engine, in particular to a four-stroke engine used on a small hand-held device, in particular to an arbitrarily flipped four-stroke engine. Background technique [0002] At present, a large number of hand-held tools are used in agriculture, forestry, animal husbandry, gardens, households and other industries. Among them, the mechanical equipment powered by gasoline engines occupies a large market. Due to the simple structure of the two-stroke engine, it can output power in any flipped state. And ordinary four-stroke engine lubricating system can't work under the overturned state, so on hand-held power tool and some agriculture, forestry, military equipment, still use two-stroke engine in a large number. [0003] Since the two-stroke engine has no independent intake and exhaust strokes, the scavenging and intake and exhaust processes overlap, and the mixed combustion of engine oil and gasoline results in high pollution and hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01M9/06F01M1/04
CPCF01M2013/0488F02F7/0004F01M1/04F01M9/06F01M13/0416F01M11/065F01M2013/0444F01M2013/0461
Inventor 孙鹤鸣
Owner SUMEC HARDWARE & TOOLS
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