Diesel Generator Tech

This article continues to introduce the repair procedure for 700kw diesel generator components. Crankshaft and Flywheel Assembly The main damages to the crankshaft include: journal wear, cracks and fractures of the crankshaft, and ablation caused by bearing burnout. If the out - of - roundness of the crankshaft journal exceeds 0.05mm, the crankshaft journal needs to be ground. For a crankshaft with severe bearing burnout, since its metallographic structure has changed, it is generally not recommended to use it again. A crankshaft with cracks must be scrapped; otherwise, it may break. Warning: The installation of the crankshaft and flywheel assembly must be carried out personally by the engineering director, following the correct torque and correct steps. The main bearing cap screws must be re - checked. Cylinder Head and Valve Train 1.Cylinder Head Cracks are likely to occur at the joint plane between the cylinder head and the cylinder block, the valve guide holes, the valve seat...

Diesel engines of generator sets may develop various faults during operation due to diverse causes. If the root cause is not identified and addressed promptly and you allow the engine to continue operating with faults, it can lead to reduced power, increased fuel consumption, and even catastrophic failures. This article briefly introduces the causes of diesel engine failures and common methods for diagnosing them. Causes of diesel engine failures Diesel engine faults generally fall into two categories: 1. Gradual natural wear: Includes corrosion, fatigue wear, and abrasive wear. This is a normal process that can only be mitigated through proper maintenance and usage to extend the engine’s lifespan. 2 Sudden failures: Caused by improper operation or poor maintenance, such as insufficient oil/water levels, clogged fuel lines, water ingress, dirty filters, or incorrect fuel injection/valve timing. While fault causes vary, systematic analysis based on symptoms can simplify troubleshooting....

Diesel generator sets are indispensable power generation equipment in modern society. The performance of the diesel engine speed control system determines the overall electrical characteristics of the generator set, such as frequency response, voltage regulation, and load-bearing capacity. As one of the core components of diesel generators, the electronic governor plays a vital role in power regulation and maintaining stable operation. Below is an overview of the working principle, features, and applications of electronic governors for diesel gensets.  Working Principle The electronic governor primarily consists of a controller, actuator, and sensors. It achieves precise engine speed control by receiving and processing electrical signals. Sensors (typically using Hall elements or magnetic induction components) collect engine speed signals. The controller processes these signals, performs calculations, and outputs control commands to the actuator. The actuator then adjusts the fue...

In modern society, diesel generator sets have become an indispensable power support in many industries. For those industries that require mass power generation, such as manufacturing, construction and healthcare, it’s important to ensure the stability of electricity supply in the event of a power outage. Disruption of the power supply not only brings production lines to a halt, causing financial losses, but can also affect a company's reputation and relationships with customers. If you need a backup diesel generator for your business, you may be wondering whether it is better to rent or buy. To make a smart decision, you need to analyze your specific needs and consider various factors. Read on to determine which option is right for your business. Advantages of renting a diesel generator Lower upfront cost and no installation costs Generally, renting a generator is a more affordable option than buying in terms of initial cost. In addition, most rentals are portable generator set...

Open type and silent type diesel gensets are two common options for backup power generation in various applications. Each type has its own advantages and considerations, making it essential to understand their differences to make an informed decision based on specific needs and requirements. Open Type Diesel Genset Open type diesel gensets , as the name suggests, are gensets that are not enclosed in a soundproof casing. They consist of a diesel engine coupled with an alternator and are mounted on a base frame. Here are some key characteristics of open type diesel gensets: 1. Cost-Effectiveness: Open type diesel gensets are generally more affordable compared to silent type gensets due to their simpler design and lack of soundproofing features. 2. Easy Maintenance: These gensets are easier to access for maintenance and repair tasks since they are not enclosed. Routine checks and servicing can be performed quickly and efficiently. 3. Ventilation: Open type gensets provide better ventilati...