Specializing in the design and manufacture of automotive motor armatures and stators.

The function of the fuel pump armature

Release Time：

2022-07-18

　　When it comes to the automotive fuel delivery system, the first thing that comes to mind is the fuel pump, because without the fuel pump, fuel cannot be supplied to the engine, and the previous P0087 fault code also mentioned the fuel pump. So Fuel pump armature What exactly does it do? Let me explain.

　　Considering heat dissipation, sound insulation, and air resistance, the current fuel pump armature is built into the fuel tank. Its main function is to draw fuel from the fuel tank, pressurize it and deliver it to the fuel supply pipe, and maintain a certain fuel pressure through the fuel pressure regulator.

　　Generally speaking, the fuel pump armature is actually a fuel pump component, a whole component. It contains multiple components, mainly composed of a filter (fuel filter, oil filter), a fuel pressure regulator, a fuel pump, and a fuel level sensor unit (float).

　　1. Currently, most vehicle fuel pumps are installed in the fuel tank. The electrically driven fuel pump consists of three parts: the pump body, the permanent magnet motor, and the housing.

　　2. Fuel flows through the electric fuel pump, cooling the armature of the permanent magnet motor, also known as a wet fuel pump. The motor part of the electric fuel pump includes a permanent magnet fixed to the housing, an armature that generates electromagnetic torque, and a brush assembly installed on the housing.

　　3. The brushes contact the commutator on the armature, and the leads connect to the terminals on the housing, guiding the voltage that controls the electric fuel pump to the armature windings.

　　4. The additional functions of the fuel pump are performed by the safety valve and the check valve. The safety valve prevents the fuel pipe from rupturing or the fuel pump from being damaged due to excessive pressure when the fuel pipe is blocked. The pressure regulator has the function of regulating and stabilizing pressure, and controls the fuel pressure at around 0.4 MPa (the specific pressure value may vary depending on the engine model). The pressure regulation method is to open the valve when the fuel pressure exceeds the spring pressure of the pressure regulator, allowing the fuel to flow back to the tank, so that the fuel pressure reaches a constant value.

　　The fuel pump armature filter includes an oil filter and a fuel filter, commonly known as a coarse filter and a fine filter, which mainly filter impurities from the fuel. The main function of both is fuel filtration. The structure of the fuel filter consists of an aluminum shell and a stainless steel bracket. A high-efficiency filter paper is installed on the bracket, and the filter paper is in a daisy shape to increase the flow area. Its main function is to remove solid impurities such as iron oxide and dust from the fuel to prevent blockage of the fuel system (especially the injectors). The fuel pump operating time and duration are controlled by the ECU according to the actual vehicle conditions. The fuel pump is directly powered by the battery, and the fuel pump relay controls its on/off. Fuel pump circuit problems are often caused by fuel pump relay failure.

Fuel pump armature

01-03

2023

What are the structural hotspots of a starter armature?

The starter armature moves the entire armature through the magnetic force of the magnetic poles, causing the drive gear to mesh with the flywheel gear ring. The armature of the starter is offset from the magnetic pole by a certain distance under the action of the reset spring, and the commutator is relatively long. The starter housing is equipped with an electromagnetic switch. Its magnetizing coil is controlled by the starter switch S. The movable contact is the contact bridge. The upper end of the contact bridge is longer and the lower end is shorter, so the starter circuit can be connected in two stages. The starter has three magnetic field windings. Among them, the main magnetic field winding with fewer turns is made of flat copper bars, and the other two fine wire windings are the series auxiliary magnetic field winding and the parallel auxiliary magnetic field winding (also called the holding coil). The starter one-way clutch generally uses a friction plate clutch. The working process of the starter armature is divided into two stages. The series auxiliary excitation winding mainly works in the first stage, and in the second stage it is almost short-circuited due to being in parallel with the main excitation winding; the parallel auxiliary excitation winding works in both stages, which not only increases the magnetic force attracting the armature, but also limits the no-load speed. (1) Engagement When the starter switch S is turned on, the electromagnet generates suction to attract the contact bridge. However, because the pawl rests against the blank, the contact bridge can only close at the upper end, and the series and parallel auxiliary magnetic field winding circuits are turned on. The current circuit is:

12-21

2022

Starter armature: What is an armature?

The starter armature manufacturer states that motors play a key and crucial role in the process of achieving mutual conversion between mechanical energy and electrical energy. For generators, it is the component that generates electromotive force, such as the rotor in a DC generator and the stator in an AC generator; for motors, it is a component that generates electromagnetic force, such as the rotor in a DC motor. The starter armature manufacturer states that the armature is the relative motion of the coil relative to the magnetic field of the coil-carrying component in the motor. In a generator, an induced electromotive force is generated in a forced rotating coil to generate electricity. In a motor, the energized coil is subjected to Ampere force in the magnetic field, causing it to rotate in the magnetic field. In the mid-19th century, the term "armature" was early used for inductors, i.e., holders of magnets. Part of an alternator or related equipment can be represented by any mechanical or electrical aspect. Although these two sets of terms are clearly separated, they are often used interchangeably, or a combination of mechanical and electrical terms is included. This can cause confusion when using composite motors such as brushless alternators, or when talking to people accustomed to using different configurations of motors. The starter armature manufacturer states that in most generators, the field magnet is rotating and is part of the rotor, while the armature is stationary.

12-12

2022

Starter armature: armature knowledge points

The armature manufacturer states that the armature plays a key and crucial role in the process of converting mechanical energy and electrical energy into each other. For generators, it is the component that generates electromotive force, such as the rotor in a DC generator and the stator in an AC generator; for motors, it is a component that generates electromagnetic force, such as the rotor in a DC motor. The armature is the part of a motor that has coils, and the coils move relative to the magnetic field. In a generator, an induced electromotive force is generated in the forced rotating coil to generate electricity. In a motor, the energized coil is subjected to the Ampere force in the magnetic field, causing it to rotate in the magnetic field. The armature manufacturer states that in most generators, the field magnet is rotating and is part of the rotor, while the armature is stationary and is part of the stator. Motors and generators can be composed of a stationary armature and a rotating magnetic field or a rotating armature and a stationary magnetic field. The pole shoes and moving iron parts of permanent magnets or electromagnets and solenoids (especially when the latter are used as switches or relays) can also be called armatures. The armature manufacturer states that armatures are divided into two categories: DC armature windings and AC armature windings. They are used in DC motors and AC motors respectively. Including the armature core and the armature winding, the armature winding is the circuit part of the DC motor,

< 1...12 13 14...24 >

Add：NO 2, Section 4. Bohail Avenue,Jinzhou Economic and Tchnical Development Zone, Jinzhou

Sales Department：+86 416-2933839

Http：www.jzhhdz.com

Email：hhdz_sales@163.com

Scan To Learn More

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Copyrights Jinzhou Hanhua Electrical Systems co., ltd. Website：300.cn jinzhou.300.cn SEO Privacy Policy

Business License