Your car's fuel pump is an essential component of the fuel injection system. How does a fuel pump work?
We look at the different types of fuel pumps and how it works. This guide also shows you how to maintain your fuel pump for reliable operation.
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Basic Types of Fuel Pump & Applications
Mechanical Fuel Pump
How does a mechanical fuel pump work? It is driven by the camshafts. With each turn of the camshaft, the cam moves under the pivoted lever, forcing it up at one of the ends.
在另一个杠杆端，有一个橡胶隔膜，倒塌。当杠杆向下拉动该隔膜时，产生抽吸，从而将燃料拉入管道并通过单向阀。这些燃油泵是在的many older vehicles, but nothing from the past few decades.
Electric Fuel pump
The electric pump works in a similar fashion, but it doesn't rely on the camshaft. Instead, it uses a solenoid to pull the diaphragm down and create suction. The electric fuel pump is used on all modern vehicles.
Vacuum Fuel Pump
How does a vacuum fuel pump work? You might notice these on some scooters and motorcycles, but how does a motorcycle fuel pump work? It runs with the vacuum of the compression coming from the motor. This vacuum operates the diaphragm inside the fuel pump to circulate fuel.
脉冲燃油泵
脉冲燃料泵如何工作？这种类型的泵包含四个管。一个人跑到燃料箱，而两个连接每个化油器，最终管连接到曲轴箱。当发动机旋转时，连接到发动机的管子泵泵从这些转旋转的压力泵泵。
How Does a Fuel Pump Work?
On your vehicle, the fuel tank and engine are usually kept separate to ensure safety. So, how does the necessary fuel get to the engine?
在燃油泵的帮助下。气体从罐中的管道泵送到发动机。燃料喷射系统推动气体直至其与入口歧管中的空气混合。
Fuel pumps can be either mechanical or electric, which changes the location of it. Some are next to the fuel tank, while others are located inside the tank itself.
这些系统仅在发动机需要时泵送燃料systems in placeto stop the flow when gas isn't needed.
柴油燃料喷射泵如何工作？
共轨燃油喷射泵
该电动燃料泵在最新型号上找到，包括供应泵，电子控制的注射器，传感器，以及共同导轨。该发动机操作供应泵以产生高压燃料输送，该燃料输送由公共导轨分布到喷射器。
Distributor (rotary) fuel injection pump
This electronic pump runs with an actuator, electronic control unit and sensors. It works similar to the common rail pump, but the actuator controls the amount of fuel that's injected.
在线燃油喷射泵
This mechanical pump utilizes the camshaft to drive fuel pressure and injection through the pump body. Fuel is fed to each cylinder.
分配器喷射泵
This mechanical fuel pump has one fuel pressure mechanism instead of one for each cylinder. The distributor follows the proper injection order to supply pressurized fuel to the cylinders. How does a small engine fuel pump work? If it is a diesel motor, this is the perfect setup.
Tips for Maintaining Your Fuel Pumps: Mechanic's Advice
While maintaining a fuel pump isn't something that's part of aregular tune-up，有一些步骤可以让它持续更长时间。
People Also Ask (FAQs)
What are some benefits of high pressure fuel pumps?
The high-pressure fuel pump creates better fuel efficiency, is safer to run, and cheaper in the long run.
How do I know that my fuel pump is failing?
一个糟糕的燃油泵开始制造抱怨噪音。它还可以在驾驶时引发发动机或产生溅射感。如果发动机在高温下摊位，您可能会有一个糟糕的燃料泵，感觉它在加速期间失去电力，或者开始汹涌澎湃。由于失败，您也可能开始变得更糟。
小发动机燃油泵是如何工作的?
Many smaller engines rely on vacuum power to move the fuel through the system.
Why would a fuel pump not get power?
If there's an electrical system issue, such as a defect with wires, a switch or the circuit, your fuel pump might not get the power it needs.
燃料泵持续多久？
Fuel pumps are made to last as longas you take care of them. When properly maintained, a fuel pump can last 100,000 miles or more.
燃油泵可以没有警告吗？
Many fuel pump problems occur without warning. One day you will be driving without any issue and the next day, the car might not start anymore.
Can you drive with a faulty fuel pump?
When the fuel pump starts to go, your engine doesn't receive the power it needs to keep going. Because of this defect, the car could leave you stranded at any moment and shouldn't be driven.
What does a bad fuel pump sound like?
如果您有警告，您的燃油泵会变坏，您可能会听到来自储气罐的响亮，呜呜声。
Conclusion
当驾驶车辆时，您依靠无缝的燃料交付，燃油泵已覆盖。通过一点专业知识和一些简单的维护任务，您可以保持燃油泵好多年。