What is the principle of a rotary engine?

Can High RPM Clean Carbon Deposits?

No. The causes of carbon deposits are explained as follows: 1. Formation of carbon deposits: Carbon deposits are residues produced after the mixed combustion of fuel and lubricating substances. These materials cannot be consumed by flames during the combustion process, hence the remaining substances; their main components are: hydroxy acids, asphaltenes, tar, etc. This is mainly due to incomplete combustion of the fuel-air mixture and poor combustion efficiency during the combustion process, leading to significant material precipitation. 2. Prolonged idling: If the engine idles for a long time or frequently stops and starts, the time it takes for the engine to reach normal operating temperature increases. This causes gasoline sprayed behind the intake valves to atomize more slowly, and the air flow entering the engine also becomes relatively smaller. Under these driving conditions, the "scouring effect" on valve carbon deposits weakens, promoting the deposition of carbon. 3. Evolution of lubricating substances: Since all engine components require lubrication, besides the engine oil itself, even the lubricating substances contained in the fuel can contribute to carbon deposit formation during combustion.

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How Many Years Can Heat Insulation Film Last?

Automotive heat insulation film typically lasts for about 5 years. The lifespan of the heat insulation film is directly related to the quality of the film material, the quality of installation, the vehicle's usage environment, and subsequent maintenance. It is important not to attach suction cups, labels, or similar items directly onto the film's surface. If you need to affix an annual inspection sticker, an electrostatic sticker can be used. The functions of automotive heat insulation film are as follows: 1. Heat Insulation: It blocks infrared radiation and absorbs a small amount of conductive heat, achieving relative heat insulation and indirectly reducing air conditioning load, thereby saving energy. 2. UV Protection: Most mid-to-high-end heat insulation films available on the market can block over 98% of ultraviolet rays, protecting the skin of drivers and passengers from UV damage. More importantly, it delays the premature fading, aging, and cracking of car interior items and leather. 3. Explosion-proof: High-quality automotive heat insulation films use special materials for the adhesive and plastic substrate, providing excellent adhesion and impact resistance. This significantly enhances the vehicle's safety by preventing theft, robbery, and collision hazards.

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What Are the Reasons for Car Air Conditioning Not Cooling on High Plateaus?

Reasons for car air conditioning not cooling on high plateaus: 1. Insufficient or low refrigerant: A common reason for car air conditioning not cooling is insufficient or low refrigerant, which is likely caused by minor leaks. 2. Excessive refrigerant: Too much refrigerant can also cause the air conditioning to not cool, as the proportion of refrigerant in the air conditioning system must meet specific requirements. If the proportion is too high, it can affect heat dissipation. Similarly, adding too much cooling oil during maintenance can also reduce the heat dissipation of the refrigeration system. 3. Loose drive belt of the car air conditioning compressor: Car cooling relies on refrigerant, and refrigerant transmission depends on the air conditioning compressor. The drive belt is a crucial moving part that drives the compressor. If the drive belt is loose, the compressor may slip during operation, reducing transmission efficiency, lowering the compressor's speed, and decreasing the delivery of compressed refrigerant, leading to the air conditioning not cooling. 4. Substandard refrigerant and refrigeration oil: Excessive impurities in the refrigerant and refrigeration oil can clog the car air conditioning's filter, causing the air conditioning to not cool. This increases resistance and reduces the flow of refrigerant to the expansion valve, resulting in insufficient cooling capacity. 5. Moisture infiltration in the refrigeration system: If moisture enters the car air conditioning refrigeration system, it can cause insufficient cooling or no cooling at all.

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What documents are required for paying taxes on a new personal vehicle?

To pay taxes on a new personal vehicle, you need to bring your ID card, the original vehicle purchase tax payment application form, the original and a copy of the motor vehicle certificate, a copy of the first page of the unified motor vehicle sales invoice, and a copy of the fourth page of the unified motor vehicle sales invoice. Below is a detailed introduction to the fees involved when purchasing a vehicle: 1. Vehicle purchase tax: According to national regulations, any vehicle driven on the road must pay a vehicle purchase tax, currently set at 10% of the vehicle's ex-factory price. The more expensive the vehicle purchased, the higher the purchase tax required. 2. Insurance fees: Vehicle insurance includes compulsory traffic insurance and commercial insurance. Compulsory traffic insurance is mandatory, with premiums set at a nationally unified rate, though the number of seats in the vehicle can affect the cost. Commercial insurance can be purchased based on personal preference, with prices varying depending on the type of coverage chosen. 3. Vehicle and vessel tax: The vehicle and vessel tax is determined based on the vehicle's displacement. Generally, the larger the engine displacement, the higher the vehicle and vessel tax required.

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What Documents Are Needed for Personal Vehicle Inspection?

For motor vehicle inspection, the owner needs to bring their ID card, vehicle registration certificate, and a copy of the valid compulsory traffic insurance policy. Note that a triangular warning sign must be carried in the vehicle. Although a fire extinguisher is not a mandatory inspection item, it is recommended to have one. Also, ensure the tire pressure indicator is within the normal green range. If the vehicle is too dirty, you may be asked to wash it. Below is relevant information about vehicle inspection: 1. Implementing cross-regional vehicle inspection: Within a city, vehicle owners can freely choose an inspection agency and should not be restricted by urban, suburban, or county divisions or assigned to specific agencies. In provinces (autonomous regions, municipalities) that have adopted a unified provincial inspection supervision platform, vehicles (excluding large buses and school buses) can be inspected anywhere within the province without needing to complete any inspection authorization procedures. 2. Provinces without a unified inspection supervision platform should expedite its establishment: All provinces (autonomous regions, municipalities) must complete the rollout by December 31, 2014. Trial implementation of cross-province (autonomous region, municipality) vehicle inspection will allow vehicle owners to directly inspect their vehicles (excluding large buses and school buses) and obtain the inspection pass mark at the vehicle's location after the nationwide unified inspection supervision software is applied.

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Do Individuals Need to Pay Taxes When Buying or Selling Used Cars?

If the transfer price of a used car is lower than its original value, no value-added tax (VAT) or personal income tax is required. If the transfer price exceeds the original value, a 2% VAT rate must be paid, along with urban maintenance and construction tax and education surcharges. Additionally, the income obtained from the transfer of a used car by an individual should be calculated as income from property transfer and subject to personal income tax. Key Considerations When Purchasing a Used Car: Ensure the vehicle title is legitimate. Verify the embossed number, engine number, and registration date on the title, and check for any signs of alteration to avoid potential transaction pitfalls. Check for any traffic violation records. Before transferring ownership of a used car, confirm whether the vehicle has any outstanding traffic violations and whether it is within the validity period of compulsory traffic insurance. Only vehicles with no violations and valid insurance can proceed with the transfer process. Generally, vehicles with outstanding violations cannot be transferred until the violations are resolved. Verify the existence of the vehicle purchase tax payment receipt. When transferring ownership of a used car, always check the original tax receipt. Some vehicles may not have paid the purchase tax, and after the transfer, the new owner may be required to settle any unpaid or exempted taxes.

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What is the principle of a rotary engine?

Can High RPM Clean Carbon Deposits?

How Many Years Can Heat Insulation Film Last?

What Are the Reasons for Car Air Conditioning Not Cooling on High Plateaus?

What documents are required for paying taxes on a new personal vehicle?

What Documents Are Needed for Personal Vehicle Inspection?

Do Individuals Need to Pay Taxes When Buying or Selling Used Cars?

Is the heat insulation film applied inside or outside the car?

What are the precautions for inspecting a new car upon delivery?

Can You Still Drive with a Faulty High-Pressure Fuel Pump?

What faults will occur if the high-pressure fuel pump loses pressure?