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Do you know the difference between a gasoline engine and a diesel engine?

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Do you know the difference between a gasoline engine and a diesel engine?

  • Categories:Industry News
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  • Time of issue:2021-01-25 18:02
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(Summary description)What are the advantages and disadvantages of gasoline engines and diesel engines? What is the difference between a gasoline engine and a diesel engine? To figure out the difference between them, we must first have a general understanding of gasoline engines and diesel engines.

Do you know the difference between a gasoline engine and a diesel engine?

(Summary description)What are the advantages and disadvantages of gasoline engines and diesel engines? What is the difference between a gasoline engine and a diesel engine? To figure out the difference between them, we must first have a general understanding of gasoline engines and diesel engines.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-01-25 18:02
  • Views:
Information
  What are the advantages and disadvantages of gasoline engines and diesel engines? What is the difference between a gasoline engine and a diesel engine? To figure out the difference between them, we must first have a general understanding of gasoline engines and diesel engines.
  What is a gasoline engine?
  Gasoline engine is also known as an ignition engine. It is an engine that injects gasoline into the intake pipe and mixes with air into a combustible mixture before entering the cylinder. It is ignited and burned by a spark plug to perform work. The gasoline is used as fuel to convert internal energy into kinetic energy.
  Gasoline engine advantages:
  Gasoline engine has high speed, fast response speed, simple structure, easy start in winter, light weight, low noise, low cost, stable operation, convenient use and maintenance, etc.
  Disadvantages of gasoline engine:
  Gasoline engine has higher fuel consumption, so the fuel economy is poor, the ignition system is more complicated than diesel engine, the reliability and the convenience of maintenance are not good.
  Gasoline Engine Classification:
  Gasoline engines are divided into:
  EQB: used for truck or passenger car gasoline engines and other gasoline engines working under mild conditions, with certain detergency, dispersion, oxidation resistance and corrosion resistance
  EQC: Used for truck or passenger car gasoline engines and other gasoline engines that work under medium conditions, and can also be used for gasoline engines that require SAE J183SC grade oil in foreign countries. It has good detergency, dispersion, oxidation resistance, corrosion resistance and rust resistance. sex
  EQD: It is used for gasoline engines of trucks, passenger cars and certain cars that work under harsher conditions, and can meet the gasoline engine oil requirements equipped with a forced crankcase ventilation device, and foreign gasoline engines that require SAE J183SD and SC grade oil. EQC grade oil has better performance
  EQE: Used for gasoline engines of cars and certain trucks that work under harsh conditions, and can meet gasoline engines equipped with exhaust gas purification devices and similar foreign gasoline engines that use SAE J183SE, SD and SC grade oils, which are better than EQD grade oils performance
  EQF: used in gasoline engines of cars and certain trucks that work under more severe conditions, and also used in gasoline engines that require SAE J183SF, SE, SD and SC grade oils abroad, which has better performance than EQE grade oil
  Gasoline engines are divided into fuels:
  Can be divided into diesel engine, gasoline engine and natural gas engine, etc.
  Gasoline engine is divided into the number of strokes that realize the cycle
  1. Four-stroke gasoline engine: The piston moves four strokes or the crankshaft rotates two revolutions to complete a working cycle in the cylinder.
  2, two-stroke gasoline engine: the piston moves two strokes or the crankshaft rotates one circle to complete a working cycle in the cylinder.
  Gasoline engines are divided into cooling methods:
  1. Water-cooled gasoline engine: Use water as the cooling medium.
  2. Air-cooled gasoline engine: use air as the cooling medium (suitable for use in water-scarce areas, such as desert countries)
  Gasoline engine is divided by ignition method
  ① Compression ignition gasoline engine: Uses the high temperature generated after the air in the cylinder is compressed to cause the fuel to ignite spontaneously. Such as diesel engines.
  ② Ignition-type gasoline engine: Use the electric spark from the spark plug to forcibly ignite the fuel, so that the fuel is forcibly ignited and burned. Such as gasoline engine, gas engine.
  Gasoline engines are classified according to the method of forming combustible mixture:
  1. Gasoline engine with mixed gas of external stroke: fuel and air are mixed first, and then enter the cylinder. Such as a gasoline engine using a carburetor.
  2. Internal-stroke mixed gas internal combustion engine: Fuel is injected into the cylinder near the end of compression, and is mixed with air in the cylinder. Such as diesel engines.
  Gasoline engine is divided into
  1. Naturally aspirated gasoline engine: Air enters the cylinder by the suction effect of the piston.
  2. Supercharged gasoline engine: In order to increase the power, a supercharger is installed on the gasoline engine, so that the gas entering the cylinder is compressed by the compressor before entering the cylinder.
  Gasoline engines are divided into the number of cylinders:
  1, single-cylinder gasoline engine
  2, multi-cylinder gasoline engine
  Gasoline engines are divided into cylinders according to their arrangement:
  1. V-shaped gasoline engine: The center line of the cylinder is in two planes, and the two planes intersect in a V shape.
  2. Others: There are H-shaped, X-shaped, star-shaped, etc., but they are rarely used in garden machinery.
  3. In-line bedroom gasoline engine: All cylinder center lines are in the same horizontal plane.
  4. Opposite gasoline engine: When the V-shaped included angle is 180°, it is also called opposed.
  5. In-line vertical gasoline engine: All cylinder center lines are in the same vertical plane.
  The working principle of gasoline engine:
  The working process of a four-stroke gasoline engine is a complicated process, which consists of four strokes: intake, compression, combustion expansion, and exhaust.
  What is a diesel engine?
  Diesel engine is also known as Diesel engine. The origin of this name is that diesel engines are compression ignition engines and the inventor is R. Diesel. A diesel engine is an engine that burns diesel oil to obtain energy and release it.
  Diesel engine advantages:
  High reliability, large torque, good thermal efficiency and high economic performance.
  Disadvantages of diesel engine:
  The speed is lower than that of gasoline engines (generally the maximum speed is around 2500-3000 rpm), the quality is large, and the manufacturing and maintenance costs are high (because the fuel injection pump and the fuel injector have high processing accuracy requirements).
  Diesel engine working principle:
  The working process of a diesel engine is actually the same as that of a gasoline engine. Each working cycle also goes through four strokes of intake, compression, work, and exhaust.
  Diesel Engine Classification:
  is divided into:
  Diesel engines for power generation, marine, automotive, agricultural irrigation, engineering machinery and other industrial supporting use
  Is divided into:
  Single-cylinder diesel engine Multi-cylinder diesel engine, among which multi-cylinder diesel engine is divided into inline type and V-shaped arrangement type according to the different cylinder arrangement;
  Is divided into cooling methods:
  Air-cooled and water-cooled
  Is divided into working cycle process
  Two stroke and four stroke
  Is divided into:
  High speed (rated speed above 1000r/min), medium speed (rated speed within the range of 600~1000r/min) and low speed (rated speed below 600r/min), currently the rated speed of diesel engines supporting diesel generator sets is generally 1500r/min or 3000r/min.
  Is divided into:
  Spontaneous combustion suction type and pressurized type
  Diesel engine development prospects:
  Diesel engines are widely used and are at the core of the industry chain. Diesel engines are mainly used for final supporting products. In the field of agricultural diesel engines, the global agricultural diesel engine market will show rapid growth. In the field of aeroengines, the engine industry is the core sub-industry of the aviation industry, and its future development prospects are very broad. Some professionals predict that global diesel engines will maintain a steady growth rate of 8%.

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Applicable scope of Diesel generator

Diesel generator has a wide range of applications and can provide stable power supply in various scenarios. The following is the main scope of application of Diesel generator: Emergency standby power supply: Diesel generator is often used as emergency standby power supply, especially in case of power failure or grid failure. It can provide stable power supply for key locations such as hospitals, airports, banks, data centers, and communication base stations, ensuring the normal operation of equipment and systems. Construction sites: In construction sites and construction sites, Diesel generator can provide power for temporary electricity and support the operation of construction equipment and tools. Industrial use: Diesel generator is widely used in the industrial field, which can provide stable power supply for factories, manufacturing industries, mines, etc., and support production and operation. Agriculture: Diesel generator can be used in rural areas to provide power for farmers, such as irrigation systems, agricultural machinery, etc. Remote area: In remote areas or places without grid coverage, Diesel generator is a common power solution that can provide reliable power supply. Ship and marine power generation: Diesel generator are widely used in ships and offshore platforms to provide power demand for ships. Mobile and standby power generation equipment: Diesel generator can be used for mobile power generation equipment, such as generator locomotive, generator ship, etc. At the same time, it can also be used as backup power generation equipment for maintenance and emergency situations of power companies and important facilities. The reason why Diesel generator are widely used in so many scenarios is that they have the following advantages: High reliability, fast start-up, suitable for emergency situations and instantaneous load demands. Fuel is universal and easy to obtain. The mechanical structure is simple, and maintenance and upkeep are relatively easy. It can provide a large power output range and adapt to different scale electricity demands. However, Diesel generator also has some shortcomings, such as loud noise, emission pollution, etc. Therefore, other types of power generation equipment may need to be considered in some specific environments.

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Internal structure of Diesel generator

The internal structure of Diesel generator usually includes the following main components: Diesel engine (internal combustion engine): It is the core part of the generator set, used to convert the energy generated by fuel combustion into mechanical energy. It includes components such as cylinders, pistons, crankshafts, connecting rods, etc. Crankcase: used to install the crankshaft and connecting rods, providing support and lubrication for the engine. Piston ring: A circular component located on the piston, used to seal the gap between the piston and the cylinder, preventing high-pressure gas leakage in the combustion chamber. Cylinder and cylinder head: The cylinder is the place where the internal combustion process occurs in the engine, and the cylinder head is used to seal the upper part of the cylinder. Valve and valve drive mechanism: responsible for controlling the intake and exhaust processes, ensuring the inflow of fuel mixture and the discharge of exhaust gases. Fuel system: includes components such as fuel tank, fuel filter, fuel pump, and fuel injector, used to supply fuel to the combustion chamber for combustion. Air intake system: including air filters and intake ducts, used to introduce air into the combustion chamber. Exhaust system: including exhaust pipes and mufflers, used to exhaust the exhaust gas generated after combustion. Cooling system: including cooling water tank, water pump, radiator, etc., used to reduce engine temperature and maintain its normal operating temperature. Lubrication system: including oil tank, oil pump, and oil filter, used to provide lubrication for the engine and reduce friction and wear of components. Starting system: used to start the engine, usually including a starting motor and starting circuit. Generator: The generator generates electrical energy by turning the engine. Control panel and control system: used to monitor and control the operating status of the generator set, including parameters such as voltage, current, frequency, temperature, etc. These are the main components of Diesel generator, and different types and specifications of Diesel generator may have some differences. Understanding the internal structure of a generator helps to better understand its working principle and maintenance methods.

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Several Precautions for Summer Maintenance of Diesel Engines

Summer is a hot season for diesel engine operation. In order to ensure the performance and lifespan of the diesel engine, the following are some precautions for summer maintenance: Cooling system inspection: Ensure that the coolant level in the cooling system is sufficient and the coolant concentration is appropriate. At the same time, check whether the water pump, radiator and cooling fan of the cooling system operate normally, and clean the surface of the radiator to prevent the blockage of dust and dirt. Air filter maintenance: Clean or replace the air filter to ensure that the engine receives sufficient and clean air. In summer, there is a lot of dust in the air, which can easily block the air filter, leading to insufficient air supply and affecting combustion efficiency. Fuel quality: Use high-quality fuel and avoid using inferior or unknown sources of fuel. Poor quality fuel is prone to impurities, leading to fuel injector blockage and incomplete combustion, which affects engine performance. Lubrication system inspection: Ensure that the oil level is appropriate and the oil quality is good. Under high temperatures, the lubrication needs of the engine are higher, so it is necessary to regularly check the concentration and cleanliness of the engine oil, and replace the engine oil and filter in a timely manner. Battery maintenance: High temperatures in summer can easily cause battery moisture to evaporate. Check the battery electrolyte level and add distilled water if necessary. Keep battery terminals clean to prevent corrosion. Transmission system inspection: Regularly check the working status of the clutch, transmission belt, and gearbox to ensure smooth operation of the transmission system. Ventilation of engine room: ensure good ventilation of the engine room, install Sun visor or shelter to avoid direct sunlight and reduce the internal temperature of the engine room. Regular maintenance: Summer is a hot season, and maintenance of diesel engines is more important. Regularly conduct comprehensive inspections and maintenance to ensure timely repair of problems and prevent the occurrence of faults. In summary, summer maintenance is crucial for the performance and lifespan of diesel engines. Following the above precautions and conducting regular inspections and maintenance can ensure stable operation of diesel engines under high temperature conditions and improve their service life. If you are not familiar with the maintenance of diesel engines, it is best to hire professional technical personnel for inspection and maintenance.

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