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The Testing Equipments of Automobile Fuel Pump’s Electric Brush Asembly Qulity

Author: YangJianDong
Tutor: ZhaoQiPing
School: Wuhan University of Technology
Course: Mechanical Design and Theory
Keywords: Electric fuel pump Brush holder assembly quality control test rig
CLC: U467
Type: Master's thesis
Year: 2006
Downloads: 96
Quote: 0
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Abstract


The electric fuel pump is an important part of the automotive fuel supply system, its function is to pump out fuel from the tank and supplied to each cylinder of the engine through the fuel injector. Thus, the automotive electric fuel pump performance have a direct impact to the safe operation of the car's condition. Assembled a good electric fuel pump is a non-removable assembly, generally do not repair, so its effective quality testing in the fuel pump assembly production process is particularly important. This paper presents a reasonable electric fuel pump brush holder assembly quality inspection program, and the successful development of the brush holder assembly quality control of the electric fuel pump test bench. The test stand has applied for national invention patent, patent application No. 200510019278.4. Following some research: (1) the study of the structure of the vehicle fuel supply system principle, analysis of the electric fuel pump assembly quality is good or bad impact on vehicle fuel supply system, and draw the electric fuel pump in the production process quality inspection necessity. (2) analysis of the impact of quality problems and assembly quality of the overall performance of the electric fuel pump electric fuel pump that may arise in the brush holder assembly process and quality control test rig overall analysis of the situation on the quality of the brush holder assembly design and development. (3) the mechanical part of the test rig design electric fuel pump brush holder assembly quality inspection, movement simulation to determine the feasibility of the mechanical design and the design results. (4) design of the electric fuel pump brush holder assembly quality inspection part of the design of the automatic control system of the test rig, including the hardware design and software design of two parts, and the simulation of hardware circuit and software design, respectively. Production of circuit boards and live the FBI laboratory commissioning and site commissioning, as well as the entire test bench control system. (5) analysis of the shortfall in the design process, and further propose a reasonable improvement program. The newly developed electric fuel pump brush holder assembly quality control test rig configuration, has a good user interface, simple operation, and can be applied to both the electric fuel pump assembly quality testing production line also can be adjusted by the mechanical design device set parameter adjustment mechanism, different test data, and to provide an effective basis of the parameters for performance optimization design of the electric fuel pump. The test stand has been in the corporate fuel pump assembly production line put into use.

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CLC: > Transportation > Road transport > Automotive Engineering > Vehicle test
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