As technology continues to advance, turbocharger technology has become increasingly prevalent in automobiles. The following passage will explore some common issues associated with turbochargers in car engines and provide solutions.
A turbocharger uses exhaust gases expelled from the exhaust pipe to spin a turbine at extremely high speeds, typically ranging from 50,000 to 230,000 revolutions per minute. This turbine's rapid rotation powers a compressor impeller, which increases the density of the air being drawn into the engine cylinders. This boosts the power output of diesel engines significantly. Turbochargers are crucial components used to enhance engine performance and reduce emissions.
However, due to improper installation, maintenance, or care, turbochargers can develop problems, leading to engine malfunctions. Turbochargers in automotive engines, also known as superchargers, are highly precise devices. They're extensively utilized in machinery like construction equipment and generators. Without altering the core structure of the diesel engine, these superchargers can boost power by up to 30% while decreasing fuel consumption by approximately 5%, providing significant economic benefits. Yet, they may fail to perform optimally if not installed or used correctly. We'll now examine some typical issues and solutions based on the turbocharger’s structural design.
One common issue is oil leakage. A noticeable increase in oil consumption without changes in exhaust color or power indicates potential oil leaks. To address this:
- First, inspect the external lubrication system's oil pipes (both inlet and return lines connected to the supercharger) for leaks.
- Next, check the supercharger's exhaust outlet for oil presence. If oil is detected, the turbine-end seal ring might be damaged, requiring replacement.
Another scenario involves high oil consumption coupled with blue exhaust smoke, though power remains unchanged. This suggests oil leakage at the compressor end. Possible causes include:
- Blocked oil return pipe, leading to oil accumulation in the rotor assembly's middle support, which then seeps into the compressed air impeller along the rotor shaft.
- Damaged sealing rings or oil swing rings near the compressed air impeller end, allowing oil to enter the impeller chamber and subsequently the combustion chamber via the intake pipe.
To resolve this:
- Open the compressor's air outlet or the direct intake pipe (rubber hose) to verify if the pipe walls are coated with oil. If so, confirm the booster's return pipe's smoothness. If it's obstructed, clear it to eliminate excessive oil buildup in the middle support.
- If the pipe is unobstructed, the impeller-end sealing ring or oil swing ring is likely damaged, necessitating disassembly and repair of the supercharger.
A third problem involves high oil consumption, blue or black exhaust smoke, and reduced power. Potential reasons include:
- Excessive wear between the piston and cylinder, causing oil to infiltrate the combustion chamber and burn.
- Increased airflow resistance when air is drawn in by the supercharger (such as a clogged air filter or deformed intake hose), leading to low pressure at the compressor's air inlet, causing oil to leak into the compressor, and eventually enter the combustion chamber as compressed air rises.
Solutions include:
- Inspect the intake hose walls for oil residue, flattening, or blocked airflow, or check for a clogged air filter.
- Clean or replace the air filter element if oil is found.
Another issue involves a metallic grinding sound from the turbocharger accompanied by black exhaust smoke, power loss, and unusual noises. Causes could be:
- Excessive wear of the supercharger's rotor bearings, thrust bearings, or impeller and housing contact.
- Airflow noise due to poor connections at the intake and exhaust interfaces.
Solutions are:
- Replace damaged parts based on wear severity.
- Carefully identify and target the specific issue.
Turbocharger bearing damage can result in decreased engine power, high oil consumption, black smoke emission, and complete failure in severe cases. Possible causes include:
- Insufficient lubrication pressure or flow.
- Debris or sediment entering the lubrication system.
- Engine oil oxidation and degradation.
Solutions include:
- Regularly check lubricant pressure and oil volume.
- Follow regulations for regular oil changes and ensure cleanliness.
- Use oils as per specifications, avoiding mixed usage.
- Avoid high engine temperatures and maintain normal operating temperatures.
If any of these issues arise, the turbocharger should be disassembled for cleaning and replacement of necessary parts. If oil leaks are detected, check the supercharger return pipe, diesel engine ventilation pipe, and oil cooler functionality. Upon finding sludge in the engine oil, replace the oil filter immediately.
Wuhan Kainuo Industry and Trade Co., Ltd. specializes in designing, producing, selling, installing, and repairing turbochargers and their parts. Over the last decade, with a focus on technology and quality, and prioritizing customer satisfaction and service, the company has grown steadily. Their products are compatible with most commercial vehicles, passenger cars, construction machinery, ships, generator sets, etc. Since 2010, they've independently developed and manufactured Digu and Passenger Card series four-cylinder engines and high-pressure turbochargers, gaining positive feedback from clients. The Digu and Passenger Card brands continue to grow robustly, with distribution and service networks covering over 20 provinces nationwide and exports to Southeast Asia and certain European regions.
The company’s business scope includes designing, producing, assembling, repairing, and selling auto parts, general machinery, commercial vehicles, passenger cars, engineering machinery, turbocharger components, and oil pump nozzles.
Address: 5th Floor, Building 2A, Longxin Industrial Park, Xincheng 12th Road, Dongxihu District, Wuhan City, Hubei Province
Telephone: /13317135089
This comprehensive approach ensures customers receive top-notch service and quality products.
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.cn-kingsir.com