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Soundproof housing of fuel injection pump transmission shaft

A technology of sound insulation cover and transmission shaft, which is applied in the directions of fuel injection pump, engine lubrication, engine components, etc., can solve the problem of not being able to provide engine oil cooling method, etc., and achieves the effect of compact structure, high temperature solution and strong practicability.

Active Publication Date: 2015-05-06
SHENZHEN YICHEONG POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fuel injection pump transmission shaft sound insulation cover is a single-layer steel plate structure, which only protects and insulates the fuel injection pump transmission shaft, and cannot provide another cooling method for the engine oil. Cools the engine oil

Method used

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  • Soundproof housing of fuel injection pump transmission shaft
  • Soundproof housing of fuel injection pump transmission shaft
  • Soundproof housing of fuel injection pump transmission shaft

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Embodiment Construction

[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0019] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0020] Such as Figure 1 to Figure 3 As shown, the sound insulation cover 5 of the drive shaft of the fuel injection pump according to the specific embodiment of the present invention is improved to a double-layer sealing structure on the basis of the ordinary single-layer structure and forms an inner cavity through which the oil flows, and is connected to the engine oil pipeline system , to cool the engine oil together wi...

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Abstract

The invention discloses a soundproof housing of a fuel injection pump transmission shaft. The soundproof housing comprises a soundproof housing inner plate, and a soundproof housing outer plate, wherein the cross section of the soundproof housing inner plate is n-shape; the inner space of the pi-shaped soundproof housing inner plate is used for accommodating the fuel injection pump transmission shaft; the cross section of the soundproof housing outer plate is like an opened rectangle; the opened rectangular soundproof housing outer plate is fixed with the n-shaped soundproof housing inner plate to define a closed engine oil cooling inner cavity; an engine oil inlet and an engine oil outlet, which are communicated with the engine oil cooling inner cavity, are respectively formed in the upper surface at the two ends of the soundproof housing outer plate. According to the soundproof housing of the fuel injection pump transmission shaft, the engine oil inlet and the engine oil outlet are accessed to an engine oil pipeline system, the engine oil passes through the inner cavity of the soundproof housing and is cooled by the original water type engine oil cooler of the engine, so that the soundproof housing plays protection and soundproof functions to the fuel injection pump transmission shaft, and further the problem that the temperature of the engine oil is too high can be solved.

Description

technical field [0001] The invention relates to the field of engines, in particular to a sound insulation cover for a drive shaft of a fuel injection pump. Background technique [0002] As we all know, excessive oil temperature will affect the normal operation of the engine, reduce performance, and bring great harm to the engine. If the temperature of the engine oil is too high, the heat generated by the friction between the bearing pad and the journal cannot be dissipated in time, which will eventually lead to severe ablation of the crankshaft and the bearing or the consequence of "pad holding the shaft". When the engine oil temperature is too high, it will not only increase the oil consumption (leakage, evaporation, combustion), but also affect the quality of the oil, making it difficult to form and maintain the oil film on the friction surface of the moving parts of the engine, resulting in the failure of the oil pressure in the main oil passage. Thereby exacerbating the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M59/44F01M5/00
Inventor 卢通
Owner SHENZHEN YICHEONG POWER TECH
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