Fuel pump

Abstract

The invention relates to a fuel pump which has a simple structure, a good emulsifying effect and a supercharging role and has the advantages that fuel in an internal combustion engine can be fed while emulsified under the condition that an emulsifier is not added. The technical scheme adopted by the invention is as follows: the fuel pump comprises an outer housing, a motor and an impeller, wherein the inner cavity of the outer housing is divided into a rotor chamber, a reflux chamber and an emulsion chamber which are communicated with one another from top to bottom by partition plates; the upper end of the rotor chamber is provided with an oil inlet, the reflux chamber is provided with a water inlet, and the emulsion chamber is provided with an oil outlet; magnetic poles of a stator of the motor are arranged on the internal wall of the rotor chamber, a rotor of the motor is mounted in the rotor chamber, and a main shaft of the motor penetrates through the reflux chamber and then extends into the emulsion chamber; the impeller is mounted in the emulsion chamber and fixed on the main shaft of the motor; and blades of the impeller are provided with a plurality of through holes.

Description

technical field [0001] The invention relates to a fuel pump, in particular to a fuel pump capable of mixing and emulsifying water and fuel, and belongs to the field of liquid pumps. Background technique [0002] Internal combustion engines using emulsified oil as fuel have the advantages of improving combustion efficiency, reducing fuel consumption, improving fuel economy, and reducing emissions of soot, nitrogen oxides, and sulfur oxides. The fuel pump is composed of a motor, a turbo pump, a one-way valve and a filter screen. At present, the more mature emulsification technologies in the fuel pump are mainly mechanical stirring method and ultrasonic emulsification method. The mechanical stirring method includes agitator, homogenizer, gear pump, etc. This method uses high-speed shear force to fully mix the oil phase and the water phase to achieve the purpose of emulsification; the ultrasonic emulsification method includes electric ultrasonic emulsifier, probe type ultrasonic...

AI Technical Summary

Problems solved by technology

However, the use of emulsified oil is still limited by the stability period of emulsified oil. The above emulsification methods all need to add emulsifiers, and even after adding emulsifiers, the emulsified oil will still separate after a long period of storage.

Although a lot of manpower and funds have been invested in research on emulsifiers at home and abroad, no economical and practical emulsifiers have been found. The current emulsifiers are still expensive, and the stability period of emulsified oil cannot exceed 30 days, and expensive emulsifiers will produce " Save fuel but not save money" result

Images