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Definition and Development History of Excavators Excavators are heavy construction equipment used for digging and excavating materials, such as soil, rock, and debris. They consist of a boom, stick, and bucket, which are controlled by hydraulic systems to perform various digging and loading operations. The history of excavators dates back to the late 19th century, when steam shovels were used for ...
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Excavator structure composition Excavators are heavy construction equipment used for excavation and demolition tasks in the construction industry. The structure of an excavator consists of several components which work together to perform a variety of tasks. Firstly, the base of an excavator is the undercarriage which includes tracks and wheels that allow the excavator to move around a constructio...
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Excavator classification Excavators come in a variety of types, each designed for different applications and work environments. In this article, we will describe the main types of excavators that are commonly used in construction, mining, and other industries. Crawler Excavator: These excavators have a tracked undercarriage and are designed for rough terrain and muddy or rocky work conditions. The...
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Definition of diesel engine A diesel engine, also known as a compression-ignition engine, is a type of internal combustion engine that operates on the principle of compression ignition. In a diesel engine, fuel is injected into the combustion chamber at a high pressure. The fuel and air mixture is compressed by the piston, which raises the temperature inside the combustion chamber. This high tempe...
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What is the transmission path and function of the fuel supply system of a diesel engine? The diesel engine fuel supply system consists of various components and a specific transmission path for delivering fuel to the engine. 1.Fuel Tank: The fuel tank is the primary storage for diesel fuel. 2.Fuel Pump: The fuel pump is responsible for drawing fuel from the tank and delivering it to the engi...
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What is an internal combustion engine?What are the categories? An internal combustion engine (ICE) is a type of engine that generates power by burning fuel within its combustion chamber. It converts the chemical energy stored in the fuel into mechanical energy that can be used to perform work. There are several categories of internal combustion engines: 1. Spark Ignition Engines (SI): Spark igniti...
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How many parts are the internal combustion engine product models? What does each mean? An internal combustion engine (ICE) consists of several essential components that work together to generate power. Here are the main parts of an internal combustion engine and their functions: 1.Engine Block: The engine block forms the foundation of the engine and houses various components. It provides support t...
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What are the main performance indicators of internal combustion engines? What does it mean? The performance indicators of internal combustion engines are used to evaluate their efficiency, power output, and overall performance. Here are the main performance indicators and what they mean: 1.Power Output: Power output measures the amount of work an engine can produce over a given time. It is typical...
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What is the reason for the engine valve not closing tightly? When engine valves do not close tightly, it can be attributed to several potential reasons: 1.Valve Clearance Issues: Each engine valve has a specified clearance range that allows for expansion due to heat. If the valve clearance is too large, the valve may not close tightly, resulting in a loss of compression. Regular valve clearance ad...
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Sensor composition The composition of sensors can vary depending on their type and application. Here are some common types of sensors and their typical compositions: 1.Temperature Sensors: - Thermocouples: Made from two different metals or metal alloys. - Resistance Temperature Detectors (RTDs): Usually made of platinum, nickel, or copper. - Thermistors: Comp...
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Explanation of common sensor performance terms Here are explanations of common performance terms associated with sensors: 1.Accuracy: Accuracy refers to the degree of conformity between the measured value and the true value of the parameter being measured. It measures the sensor's ability to provide measurements that are close to the actual value. Accuracy is typically expressed as a percentage of...
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Causes of diesel engine starting difficulty There are several potential causes for starting difficulties in a diesel engine: 1.Fuel System Issues: Insufficient fuel supply, air in the fuel system, clogged fuel filters, or fuel contamination can impede proper fuel delivery, leading to starting problems. 2.Glow Plug Problems: Faulty glow plugs or a malfunctioning glow plug system can result in inade...
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