Silence Principle and Common Faults of Open Type Generator

Both open-type generators and silent generators belong to the silent series, but the silent effect of open-type generators is somewhat poor, mainly through noise reduction methods, such as noise reduction, built-in silencers, etc. During the use of the generator, some faults are prone to occur, such as insufficient fuel supply, weak ignition, unsmooth intake air, and valve leakage. These are all common faults of the generator. Below is a detailed introduction by Dingbo Power.

Silence Principle of Open Type Generator

1. The open-type diesel generator set is designed by introducing foreign low noise generator and engine technology; Design concept, complete variety.

2. In addition to the various functions of the series of diesel generator sets, the product also has the following features: low noise, compact overall structure, and small footprint; The box body is all of a detachable structure, and is made of steel plates spliced together. The surface is coated with high-performance antirust paint, and has noise reduction and rain protection functions; The interior of the box adopts a multi-layer barrier impedance mismatch type muffler structure, and a built-in large impedance muffler.

3. The box structure is reasonably designed, with a large capacity oil tank inside the box, and two access doors on the left and right simultaneously to facilitate genset troubleshooting; At the same time, an observation window and an emergency shutdown failure button are opened on the box to observe the operation of the genset and shut down the diesel genset quickly in case of an emergency to avoid damage to the genset.

Common Faults of Open Type Generators

1. Insufficient fuel supply

Insufficient fuel supply is one of the common faults of diesel generators, which often occur during construction on site, and its performance varies depending on the degree of oil shortage and the location of the fault. One is that the main metering hole is blocked, resulting in insufficient fuel supply. After the machine is started, the rotational speed continuously fluctuates from high to low, and the governor swings back and forth regularly. The sound of the machine also fluctuates regularly, producing a rhythmic "woo woo woo" sound. At this time, if the damper is turned down, the phenomenon disappears, but the rotational speed cannot reach the rated value, and the machine lacks power and cannot supply power; The second is that the fuel passage in front of the main metering hole is blocked, resulting in insufficient fuel supply.

2. Ignition too weak

When the spark plug ignites weakly, the diesel generator exhibits weak operation, unstable rotational speed, increased vibration, and a backlash in the cylinder, accompanied by flashback or shooting.

3. Poor air intake

The fault phenomenon of poor intake of the engine is obvious. After the machine is started, the sound is relatively dull, the exhaust gas emits black smoke, the rotational speed cannot reach the rated value, and the unit cannot supply power. Most of these failures are caused by clogging of the intake air.

4. Valve leakage

Valve leakage can lead to a decrease in cylinder compression and insufficient combustion of gasoline. When the valve leakage is serious, the machine is not easy to start, and the engine speed is unstable after starting. During operation, you may hear "hiss, hiss," hiss, and black smoke from the exhaust gas or flashback and blowby of the carburetor.

5. Cylinder leakage

In addition to valve leakage, other common causes of cylinder leakage include: first, cylinder gasket leakage; The second is excessive wear of cylinder liner and piston ring, and insufficient elasticity of piston ring; The third reason is that the piston ring is stuck due to carbon deposition.

The above content is about the silence principle and common faults of open-type generators. I hope it can be helpful to you. Dingbo Power is a professional and trustworthy manufacturer of diesel generators. If you need diesel generators, please contact us by email dingbo@dieselgeneratortech.com.