Automobile fuel pump

An oil pump and gasoline technology, applied in the field of distance blades, can solve the problem of huge time consumption, and achieve the effect of reducing pressure pulsation and ensuring static balance

Active Publication Date: 2014-04-30
NINGBO ROCKET AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the above-mentioned problems, many documents are developing technologies for reducing the sound generated from oil pumps, for example, patent No. 201010526213.X is one of them, in which the law of random distribution is used to obtain a large amount of data, and then through a large number of experiments or simulations Calculating and finding the range of noise reduction indicators takes a lot of time. Therefore, there is a need to find a better noise reduction solution

Method used

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Embodiment Construction

[0033] The design principle of the present invention is: the non-equidistant blade distribution method of the turbine used by the automobile oil pump is to select the non-equidistant blade distribution method through rounding and fine-tuning based on the law of sinusoidal distribution law. The method fine-tunes the angle around a better distribution law, avoids a large number of experiments or simulation calculations, can better reduce the pressure fluctuation of the turbine with non-equidistant blades, and better guarantees the static balance of the turbine . Compared with the general random distribution rule, the method is more suitable for obtaining the best unequal-spaced blade distribution rule, and is beneficial to the noise reduction of the multi-vane pump turbine.

[0034] Several preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. T...

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Abstract

The invention provides an automobile fuel pump. According to the automobile fuel pump, by means of a rotary turbine, the automobile fuel pump comprises pumping fuel into a housing of the pump and pressurizing the fuel, and discharging the pressurized fuel out of the housing of the pump; 37 blade grooves are formed in the periphery of the turbine, and the blade grooves are of rounding and fine-tuning on base of a sinusoidal distribution rule, in line with a mathematical formula; a non-equally spaced blade distribution way is selected in a targeted mode, the pressure pulsation of the turbine with non-equally spaced blades can be perfectly reduced without a large number of experiments or analog computation, and the static balance of the turbine is perfectly guaranteed.

Description

technical field [0001] The invention relates to an automobile oil pump, in particular to a non-equidistant vane of a turbine of the automobile oil pump, which is used for reducing the noise generated by the oil pump in the automobile oil tank. Background technique [0002] In the fuel tank of a car, an oil pump is usually used to transport gasoline out of the fuel tank. The oil pump uses the rotation of the turbine to suck gasoline from the suction port of the pump casing into the pump casing. The sucked gasoline is pressurized while flowing in the pump casing, increasing the The compressed gasoline is discharged from the discharge port of the pump casing to the outside of the pump casing. Since the pressure of gasoline on the discharge port side is higher than the pressure of gasoline on the suction port side, it is necessary to prevent gasoline from flowing from the flow path on the discharge port side to the flow path on the suction port side. Therefore, a stopper wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/18F04D29/66
Inventor 孙国庆
Owner NINGBO ROCKET AUTOMOBILE PARTS
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