Request PDF | On Oct 1, 2019, Ying-Xiao Yu and others published Energy Saving of an Electric Forklift with Hydraulic Accumulator | Find, read and cite all the research you need on ResearchGate
Hydraulic accumulators have long been used in hydraulic circuits. Applications vary from keeping the pressure within a circuit branch to saving load energy. …
Accumulator which stores a fluid under pressure and is therefore able to release hydraulic energy. Pressurisation is mainly based on gas pressure (air, nitrogen, "hydropneumatic accumulator") and, more rarely, springs or weights (spring accumulator, weighted accumulator).The latter is the only accumulator which keeps the pressure constant during …
Request PDF | Energy saving solutions for a hydraulic excavator | Nowadays the improvement of energy efficiency and the reduction of pollutant emissions are the major challenges that the mobile ...
A new hydraulic closed-loop hydrostatic transmission (HST) energy-saving system is proposed in this paper. The system improves the efficiency of the primary power source.
Different strategies for improving the energy efficiency of a power hydraulic system have been reviewed in this article. The energy-saving scheme is classified into three categories: System design, Improving …
Their ability to store and release large amounts of hydraulic energy makes them essential in applications where high-power output is required. Diaphragm-type hydraulic accumulators. Diaphragm-type hydraulic accumulators are a type of hydraulic accumulator commonly used in hydraulic power systems. They are designed to store hydraulic fluid under ...
Through the simulation, the energy saving performance of the new system is verified, and the initial pressure of the hydraulic accumulator is determined. In addition, the new system is tested on a ...
Through analyzing the energy flow of the different actuators, at the same time considering the load match of the different actuators and energy storage and regeneration, a novel energy-saving fast forging system schematic of two-stage pressure source is proposed. The rules of two-stage pressure''s parameters design and match are formulated, giving the key components …
This paper critically reviews various energy-saving models used for enhancing the energy efficiency of hydrostatic power transmission drives. The system layout, component design, and controllers used are discussed in detail in its sub-category. Based on the detailed review of various energy-saving models, a novel energy-efficient hydrostatic power …
The energy-saving of hydraulic excavators is evaluated by two significant indicators: operating efficiency (digging weight per unit time) and fuel consumption (volume of fuel consumed per unit time).
In addition, 15 sets of motor-pump stations were idle when the HP worked in the WT stage. The actual energy consumed to complete the action is presented in Table 6. Table 6. ... Simulation study on a hydraulic-accumulator-balancing energy-saving systems in hydraulic boom. 50th National Conference on Fluid Power (2005), pp. 371 … Learn More. Hydraulic Accumulator …
Hydraulic Accumulator-Motor-Generator Energy Regeneration System for a Hybrid Hydraulic Excavator LIN Tianliang1, 2, * and WANG Qingfeng1 1 State Key Laboratory of Fluid Power Transmission and ...
Therefore, ACC pump unit has the best energy-saving effect. KEY WORDS Energy Saving, Oil Hydraulic Pump Unit, Accumulator, Idling Stop, Efficiency 1. INTRODUCTION Energy saving has been made in a number of fields due to the shortage of energy resources and the need to protect the earth''s environment. The hydraulic field is not an exception.
The recovered energy can be stored in various ways. However, previous studies made by the authors have shown that in hydraulically operated regenerative systems a pressure accumulator seems to be potential option as energy storage. Hydraulic accumulator has also some disadvantages, e.g., energy losses in form of heat transfer. The efficiency ...
Request PDF | A study on an energy saving electro-hydraulic excavator | Nowadays with the high fuel prices, the demands for energy saving and green emission of construction machinery, without ...
Do HT, Ahn KK. A study of energy saving hydraulic system by a pressure coupling hydrostatic transmission. J Drive Control 2012; 9: 10–17. Google Scholar. 40. Yang H, Sun W, Xu B. New investigation in energy regeneration of hydraulic elevators. IEEE/ASME Trans Mechatron 2007; 12: 519–526. Crossref. Google Scholar. 41. Ho TH, Ahn KK. Modeling …
To address this problem, a new energy-saving system based on hydraulic accumulator is proposed in this paper. A simulation model of the system is established. The simulation shows …
Energy Storage. A hydraulic system accumulator is primarily used for energy storage purposes. It stores pressurized fluid, which can be utilized to release energy during peak demand periods, thus helping to balance out the hydraulic system''s overall energy requirements. This allows for efficient operation and prevents overworking the hydraulic pump or motor. Shock …
The hydraulic scissor lift is a widely used special lifting equipment. In its repeated ascent and descent, the gravitational potential energy of its platform is wasted. To address this problem, a new energy-saving system based on hydraulic accumulator is proposed in this paper. A simulation model of the system is established. The simulation shows …
Results show that in comparison with the energy and time consumption of the original 630 kN hydraulic press, the energy-saving potential has reached 17.34%, and the production efficiency can be ...
In 2010, Yang reformed traditional P/Q valve-controlled hydraulic IMM circuits and developed an energy saving module with a hydraulic accumulator for reducing energy consumption [76] 2013 ...
An innovative hydraulic hybrid excavator is proposed in this paper to save energy. An electrical hydraulic continually variable powertrain is proposed to drive the main …
In this study, a novel double-stage hydraulic system incorporating a hydraulic controllable accumulator (HCA) was proposed to simultaneously improve the energy and …
LU AND YAO: ARC OF HYDRAULIC MANIPULATOR USING FIVE CARTRIDGE VALVES WITH AN ACCUMULATOR 7047 possible, and the offside pressure of the cylinder also follows
The energy saving system was tested on a 21.5-ton hydraulic excavator, and the results showed that the energy consumption of the boom lifting hydraulic circuit was …
Download Citation | Energy saving and performance enhancement of hydraulic fineblanking press assisted with controllable hydraulic accumulator for sustainability | In this study, a novel double ...
The digital prototypes of 6 t, 20 t, and 76 t hydraulic excavators were built, respectively. The 6 t meter in and meter out independently controlled hydraulic excavator and 76 t energy-saving ...
of the accumulator''s operating environment. Given the constant volume of an accumulator shell when the temperature rises, the gas pressure will increase and conversely as the temperature goes lower, the gas pressure decreases. This temperature effect on precharge gas pressure will affect operation of the accumulator in a hydraulic fluid ...
Download Citation | Constant pressure hydraulic energy storage through a variable area piston hydraulic accumulator | Hydraulic accumulators are used in a variety of applications to minimize the ...
et al. (2007)&– as an energy source of the hydraulic sys-tem, Ding et al. (2007)&– as a braking energy absorber and electric energy source in electromobiles, Okoye et al. (2005)&– as a measure of energy savings in electricity lines. 3. Hydraulic System Solutions Create a dynamic model of a hydraulic accumulator without a partition (Fig. 1).
Additionally, a multi-run simulation technique is used to optimize the soft switch parameters, which help to fabricate the soft switch effectively. Summary of different energy-saving strategies A summary of different energy-saving strategies of a power hydraulic system regarding energy-saving potential is given in Table 1. This study provides a ...
Download Citation | Hydraulic Accumulator as Energy Storage | Most of the hydraulically operated systems have potential to improve the energy efficiency of the system by using energy regeneration.
LA HIDRÁULICA ES SU PROFESIÓN: nuestros especialistas en hidráulica tienen sus capacidades tecnológicas en todos los diseños de acumuladores, como los acumuladores de …
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SUN Wei, VIRVALO T. Simulation study on a hydraulic-accumulator-balancing energy-saving system in hydraulic Boom[C]//50th National Conference on Fluid Power, Las Vegas, American, March, 13–15, 2005: 371–381. BRUUN L. Swedish developed energy saving system in caterpillars excavators[J]. Fluid Scandinavia, 2002(2): 6–9 (in …
A hydraulic accumulator, the key component of the energy regenerative modality, can be decoupled from or coupled to the HST circuit to improve the efficiency of the …
DOI: 10.1016/J.JCLEPRO.2019.06.084 Corpus ID: 197804374; An energy-saving method to reduce the installed power of hydraulic press machines @article{Yan2019AnEM, title={An energy-saving method to reduce the installed power of hydraulic press machines}, author={Xiaopeng Yan and Baijin Chen and Dongwei Zhang and Chengxing Wu and Wanxian …
Semantic Scholar extracted view of "Energy saving solutions for a hydraulic excavator" by Andrea Bedotti et al. Semantic Scholar extracted view of "Energy saving solutions for a hydraulic excavator" by Andrea Bedotti et al. Skip to search form Skip to main content Skip to account menu Semantic Scholar''s Logo. Search 221,988,446 papers from all fields of …
Each part of the hydraulic press (HP) dissipates a large amount of energy when hydraulic power units transfer energy to hydraulic actuators. Statistically, 9.32% of the input energy is transferred and converted into forming energy [6].Therefore, it is necessary to investigate the main reason for the low energy utilization rate of HPs for a better study of …
Figure 1 depicts the slewing energy-saving system of hydraulic hybrid excavators, comprising the main pump, main valve, hydraulic motor, high-pressure accumulator, low-pressure accumulator, and other components. The operator adjusts the pilot pressure at the main valve by manipulating the operation joystick, then regulates the oil flow of …
DOI: 10.1109/TIE.2014.2314054 Corpus ID: 731719; Energy-Saving Adaptive Robust Control of a Hydraulic Manipulator Using Five Cartridge Valves With an Accumulator @article{Lu2014EnergySavingAR, title={Energy-Saving Adaptive Robust Control of a Hydraulic Manipulator Using Five Cartridge Valves With an Accumulator}, author={Lu Lu and Bin Yao}, …
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