Impurity filtering device of diesel oil delivery pump

A technology of impurity filtration and oil delivery pump, which is applied to components, pumps, and pump components of elastic fluid pumping devices. It can solve problems affecting engine performance and insufficient cleanliness, and achieve improved filtering effect, responsiveness, and good filter effect

Inactive Publication Date: 2019-07-09
JIANGSU JINHU FUEL FEED PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a diesel oil delivery pump impurity filtering devi

Method used

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  • Impurity filtering device of diesel oil delivery pump
  • Impurity filtering device of diesel oil delivery pump
  • Impurity filtering device of diesel oil delivery pump

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1-2 , a kind of impurity filtering device for diesel fuel delivery pump, comprising an upper pump cover 1 and a lower pump cover 2, a diaphragm 5 is fixedly connected between the upper pump cover 1 and the lower pump cover 2, and the upper pump cover 1 is connected to the lower pump cover through bolts 4 2 Fixed connection, the number of bolts 4 is two, the bottom of the lower pump cover 2 is fixedly connected with a spring seat 3, and the t...

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Abstract

The invention relates to the technical field of oil delivery pumps. The invention further discloses an impurity filtering device of a diesel oil delivery pump. The impurity filtering device comprisesan upper pump cover and a lower pump cover, a diaphragm is fixedly connected between the upper pump cover and the lower pump cover, a spring seat is fixedly connected to the bottom of the lower pump cover, a large spring is arranged at the top of the spring seat, a pump core seat is movably connected to the top of the large spring, an upper connecting lug and a lower connecting lug are fixedly connected to two sides of the pump core seat respectively, a groove is formed in the top of the pump core seat, and a spring groove is formed in the bottom of the groove. According to the invention, an end filter screen is arranged on the inner wall of an oil inlet pipe, diesel oil flowing into the oil delivery pump is filtered, the end filter screen is designed to be wavy to enable the surface areaof the end filter screen to be large, under the condition of the same oil inlet amount, the mesh number of the filter screens can be increased, the filtering effect is improved, the filtering effect of the device is better, the service life of an engine is prolonged, and the large spring can provide required pipeline pressure for a system.

Description

technical field [0001] The invention relates to the technical field of oil delivery pumps, in particular to an impurity filter device for diesel oil delivery pumps. Background technique [0002] The role of the fuel delivery pump is to ensure that the diesel oil circulates in the low-pressure oil circuit, and to supply a sufficient amount of fuel with a certain pressure to the fuel injection pump. The fuel delivery volume should be 3-4 times the maximum fuel injection volume under full load. Oil pumps are divided into gear oil pumps, diaphragm oil pumps, plunger oil pumps, pipeline oil pumps and so on. [0003] However, during the use of the existing oil delivery pump, there is a deficiency in the cleanliness of the diesel oil flowing through the oil delivery pump, which has a certain impact on the performance of the engine, thereby reducing the service life of the engine. Contents of the invention [0004] (1) Solved technical problems [0005] Aiming at the deficiencie...

Claims

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Application Information

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IPC IPC(8): F04B43/04F04B53/20F02M37/08
CPCF02M37/08F04B43/04F04B53/20
Inventor 李传金
Owner JIANGSU JINHU FUEL FEED PUMP
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