Foreign countries attach great importance to valve research work, and there are many research institutions, most of which are within the company. There are two main types.
One is the centralized mode of the former Soviet Union. The Central Valve Manufacturing Design Institute conducts technical management of the valve industry. It is responsible for the planning, new product design, standardization, serialization, generalization, product and new process of the whole industry. And so on.
The other is based on the company's products and development for development research. There are 24 in the United States, such as the Rockwell Valve Engineering Research Center. There are also 24 in Japan, such as the Technical Research Institute of Okano Valve Company.
These institutions focus on valve design and basic theory, new materials, new processes, product performance, reliability and standard flower research. Especially for the research of valve products with high parameters and special working conditions. While paying attention to technical exchanges and academic activities, we also pay great attention to the confidentiality of topics and institutions. The research institute has test and test equipment for improving product quality and performance, and adopts advanced testing methods to design computer-aided design (CAD) using finite element analysis.
At present, the research characteristics of foreign valves are summarized as follows: experimental research is closely integrated with new product development; internal research topics are closely integrated with the introduction of foreign technology; emphasis is placed on the application of high-tech on valves, and high-parameters and special work are emphasized. The experimental research of the conditional valve pays attention to the research work of the valve basic theory: pay attention to the field test and improvement work.
Shock Absorber
shock absorber (in reality, a shock "damper") is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is thendissipated. A shock absorber is a type of dashpot.
Pneumatic and hydraulic shock absorbers are used in conjunction with cushions and springs. An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below).[1]
One design consideration, when designing or choosing a shock absorber, is where that energy will go. In most shock absorbers, energy is converted to heat inside the viscous fluid. In hydraulic cylinders, the hydraulic fluid heats up, while in air cylinders, the hot air is usually exhausted to the atmosphere. In other types of shock absorbers, such as electromagnetic types, the dissipated energy can be stored and used later. In general terms, shock absorbers help cushion vehicles on uneven roads.
In a vehicle, shock absorbers reduce the effect of traveling over rough ground, leading to improved ride quality and vehicle handling. While shock absorbers serve the purpose of limiting excessive suspension movement, their intended sole purpose is to damp spring oscillations. Shock absorbers use valving of oil and gasses to absorb excess energy from the springs. Spring rates are chosen by the manufacturer based on the weight of the vehicle, loaded and unloaded. Some people use shocks to modify spring rates but this is not the correct use. Along with hysteresis in the tire itself, they damp the energy stored in the motion of the unsprung weight up and down. Effective wheel bounce damping may require tuning shocks to an optimal resistance.Shock Absorber
Automotive Shock Absorber,Honda Shock Absorber,Shock Absorber
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