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Structure improved diesel engine fuel supplying system

A technology for improving the oil supply system and structure, which is applied in the direction of the charging system, mechanical equipment, engine components, etc. It can solve the problems of a large amount of black smoke from the exhaust pipe, the pollution of the surrounding environment, and the damage of the engine, so as to avoid the phenomenon of oil dripping , protect the environment, save energy

Inactive Publication Date: 2014-02-12
JIANGSU KANGWO POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Common diesel engines often have a lot of black smoke and oil dripping from the exhaust pipe due to excessive speed, which will cause serious pollution to the surrounding environment, waste energy, and cause damage to the engine and even the risk of explosion

Method used

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  • Structure improved diesel engine fuel supplying system
  • Structure improved diesel engine fuel supplying system
  • Structure improved diesel engine fuel supplying system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Embodiment: A fuel supply system for a diesel engine with improved structure, including fuel tank 1, fuel pump 2, filter 3 and fuel injection pump 5, said fuel tank 1, fuel pump 2, filter 3 and fuel injection pump 5 pass through the pipeline connection, the pipeline 9 between the filter 3 and the fuel injection pump 5 is provided with a solenoid valve 4, and the fuel injection pump 5 is provided with a fuel injector 6, and the fuel injector 6 includes a needle valve body 7 and a needle valve 8, The needle valve body 7 is composed of a body and an end body, and the end body is provided with upper, middle and lower pressure chambers 11, 12, 13 connected in sequence, wherein the upper and lower pressure chambers 13 are in the shape of a frustum of a cone, and the middle pressure chamber 12 is an annular structure, the needle valve 8 is arranged in the needle valve body 7, the head of the needle valve 8 is a frustum-shaped structure matching the upper and lower pressure cham...

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Abstract

The invention discloses a structure improved diesel engine fuel supplying system. The structure improved diesel engine fuel supplying system comprises a fuel tank, a fuel feeding pump, a filter and a fuel injection pump which are connected through pipelines; the pipeline which is arranged between the filter and the fuel injection pump is provided with a solenoid valve; the fuel injection pump is provided with a fuel injection nozzle which comprises a needle valve body and a needle valve; the needle valve body is formed by a body and an end body; the upper pressure chamber, the middle pressure chamber and the lower pressure chamber which are communicated with each other in turn are formed in the end body; the upper pressure chamber and the lower pressure chamber are of frustum-shaped structures; the middle pressure chamber is of a circular-ring-shaped structure; the needle valve is arranged in the needle valve body; the head of the needle valve is of a frustum-shaped structure which is matched with the upper pressure chamber and the lower pressure chamber; the frustum-shaped head of the needle valve is provided with the spherical segment. According to the structure improved diesel engine fuel supplying system, volumes of the pressure chambers are saved, the uniformity of atomization of the fuel is improved, and accordingly the fuel can be fully burnt, the fuel drip is avoided, the energy is saved, the overspeed rotation of an engine due to the fact that fuel supply is out of control is avoided, the engine is protected, and the environment is protected.

Description

technical field [0001] The invention relates to an oil supply system for a diesel engine, in particular to an oil supply system for a diesel engine with improved structure. Background technique [0002] Common diesel engines often have a lot of black smoke and oil dripping from the exhaust pipe due to excessive speed, which will cause serious pollution to the surrounding environment, waste energy, and cause damage to the engine and even the risk of explosion . Contents of the invention [0003] In order to overcome the above-mentioned defects, the present invention provides a diesel engine oil supply system with improved structure. The diesel engine oil supply system with improved structure has stable engine speed, uniform fuel atomization, avoids oil dripping phenomenon, protects the environment, saves energy, and prolongs engine life. [0004] The technical solution adopted by the present invention in order to solve the technical problem is: a diesel engine fuel supply...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M61/10F02M37/14
Inventor 张有萍
Owner JIANGSU KANGWO POWER TECH
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