Diesel powered hydraulic power units are a kind of power units integrating diesel engine and hydraulic pump, which mainly drive the hydraulic pump through the combustion of diesel engine to produce high pressure hydraulic oil to provide power for the hydraulic system. Diesel powered hydraulic power units have the characteristics of high power, high torque, high reliability, wide range of application, etc. They are widely used in engineering machinery, agricultural machinery, ships and other fields. Here we will introduce the composition and working principle of diesel powered hydraulic power units in detail.
First, the composition of hydraulic power units
The diesel powered hydraulic power units are composed of two parts: the diesel engine and the hydraulic pump. The diesel engine is the main source of power to drive the hydraulic pump, diesel powered hydraulic power units are the core components to provide high-pressure hydraulic fluid.
(1) Diesel engine part
The diesel engine part includes diesel engine, air intake system, exhaust system, cooling system, fuel system, electrical system and so on. The power and torque of the diesel engine are the main factors that determine the output power and torque of the hydraulic pump station.
(2) Hydraulic station part
The hydraulic station part includes hydraulic pump, oil tank, hydraulic pipeline, control valve and so on. The main role of the hydraulic station is to convert the output power of the diesel engine into high-pressure hydraulic oil, and then transported to the hydraulic actuator through the hydraulic pipeline to achieve mechanical movement and force transfer.
Second, the working principle of hydraulic power units
The working principle of diesel powered hydraulic power units is to generate power through the combustion of the diesel engine, and then drive the hydraulic pump to generate high-pressure hydraulic oil, and ultimately through the hydraulic pipeline to the hydraulic actuator, to achieve mechanical movement and force transfer.
(1) the working principle of the diesel engine part
Diesel engine part of the working principle is the use of fuel combustion in a high-pressure environment to generate power to drive the rotation of the diesel engine. The working process of diesel engine includes four processes such as air intake, compression, combustion and exhaust.
(2) the working principle of the hydraulic pump section
Hydraulic pump part of the working principle is to use the output power of the diesel engine to drive the rotation of the hydraulic pump, thereby generating high-pressure hydraulic oil. Hydraulic pumps usually use gear pumps, piston pumps, drum hydraulic pumps and other types, different types of hydraulic pumps have different working principles and characteristics.
When the hydraulic pump starts to work, it draws hydraulic oil into the pump. The hydraulic pump then compresses this oil to produce high-pressure hydraulic oil. Ultimately, the high-pressure oil travels through the pipeline to the hydraulic actuator, achieving mechanical movement and force transfer.
Third, the advantages and disadvantages of hydraulic power units
Hydraulic power units have the following advantages:
1, high power, high torque, wide range of applications;
2, high reliability, good stability, can run for a long time;
3, can achieve multi-channel control, can control multiple actuators at the same time;
4, can be adjusted according to different workloads, adaptability.
The disadvantages of hydraulic power units are:
1, the system cost is higher, maintenance is more complex;
2, the hydraulic oil is easily contaminated, need to be replaced and cleaned regularly;
3, the noise is larger, more pollution to the environment.
In a word, diesel-powered hydraulic power units are a type of power unit that integrates a diesel engine and a hydraulic pump. The diesel engine drives the hydraulic pump through combustion. This process produces high-pressure hydraulic oil, which provides power for the hydraulic system. Diesel powered hydraulic power units have the characteristics of high power, high torque, high reliability, wide range of application, etc. It is an indispensable and important equipment in the fields of engineering machinery, agricultural machinery, ships and so on.
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