Filter screen device of self-cleaning fuel pump
A fuel pump, self-cleaning technology, applied to the components, pump components, charging systems, etc. of the pumping device for elastic fluids, can solve the problems of filter clogging, engine power drop, etc., to achieve stable movement, fuel inflow, etc. The smooth effect of the side oil pipe
Active Publication Date: 2014-12-10
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the problem that the filtered impurities in the filter screen assembly of the current fuel pump are easy to accumulate outside the filter screen of the fuel pump and cause the filter screen to be blocked, thereby affecting the fuel supply of the fuel pump to the engine and causing the engine power to drop. A self-cleaning fuel pump filter screen device that will not block the filter screen and will not affect the normal fuel supply of the fuel pump to the engine
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] as attached figure 1 Shown: a self-cleaning fuel pump filter device, including a cylinder body 1, a side oil pipe 2 welded at one end to the middle of the cylinder body 1, two filter screens 3 each connected to one end of the cylinder body 1 by screws, located in the cylinder body 1. The sliding plug 4 and two springs 5 whose inner and outer diameters are clearance fit with the inner diameter of the cylinder body 1; the thickness of the sliding plug 4 is smaller than the inner diameter of the side oil pipe 2; the two springs 5 are located in the cylinder body 1 And they are respectively located on both sides of the slide plug 4; the two ends of each spring 5 are respectively connected with a filter screen 3 and one end of the slide plug 4.
[0017] There is a weight-increasing block 41 inside the slide plug 4 . The material of the weight-increasing block 4...
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The invention relates to the field of oil supply units for automobiles, and aims to provide a filter screen device of a self-cleaning fuel pump. The filter screen device of the self-cleaning fuel pump comprises a cylinder body, a side fuel pipe with one end fixedly connected with the middle part of the cylinder body, two filter screens fixedly connected with one end of the cylinder body respectively, a sliding plug positioned in the cylinder body and provided with outer diameter matched with the inner diameter of the cylinder body, and two springs; the thickness of the sliding plug is smaller than the inner diameter of the side fuel pipe; the two springs are positioned in the cylinder body and positioned on two sides of the sliding plug; and two ends of each spring are connected with one side ends of one filter screen and the sliding plug respectively. The filter screen device of the self-cleaning fuel pump prevents the filter screens from being blocked, without influencing the normal fuel supply of the fuel pump to the engine.
Description
technical field [0001] The invention relates to the field of automobile fuel supply devices, in particular to a self-cleaning fuel pump filter screen device. Background technique [0002] The fuel pump is an important part of the car, and the impurities in the fuel will affect the normal fuel supply of the fuel pump to the engine; with the increase of the mileage of the car and the aging of auto parts, the impurities in the fuel in the fuel tank will gradually increase. The utility model of Chinese patent announcement number CN2700591Y discloses a fuel pump for cars; the two ends of the oil pipe are respectively tightly fitted and socketed with the base and the oil nozzle of the pump core, and the pump core is fixedly connected in the bracket, and the upper part of the bracket is connected to the pump core. There is a rubber shock-absorbing sleeve, and there is a rubber shock-absorbing seat between its lower part and the pump core. The filter screen assembly and the oil inle...
Claims
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IPC IPC(8): F02M37/22F04B53/20
Inventor 田雄威崔发成余见山杨安志赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD