Study on Energy Saving of Hybrid Hydraulic Excavator
Aimed at the hybrid excavators, an energy saving scheme with hydraulic motor regeneration for hydraulic actuators is put forward.
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Application of Hydraulic Transformer on Energy Saving for
Facing the energy crisis and environmental problems, saving energy of construction machinery, especially in the hydraulic excavator is very important. Regeneration of the potential energy is an effective solution to save energy. However, the conventional hybrid excavator can't regenerate the potential energy. This paper proposes a new structure of boom system of hydraulic excavator as well
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New compound energy regeneration system and control
Aug 01, 2016 · 1.Introduction. In recent years, energy crisis and environmental pollution have become increasingly serious problems that the world has to face. It is meaningful to investigate the energy saving of construction machinery, especially for hydraulic excavators (HEs) due to their wide application and extremely low efficiency.
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Hybrid excavator technology reuses energy | OEM Off-Highway
Feb 28, 2013 · The hydraulic hybrid swing system captures the excavator's upper structure swing brake energy in accumulators and releases the energy during swing acceleration. The design of the Cat 336E H also allows it to run at reduced engine speeds, which saves fuel and reduces noise in and outside the cab.
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Energy-Saving Analysis of Hydraulic Hybrid Excavator …
The velocity, displacement, and energy consumption curves of the two systems are concluded under the same conditions. The comparison shows that: energy saving of the electric hybrid slewing system is 37.27% compared with the traditional system. And the electric hybrid slewing system has the characteristics of the better control function and the higher energy utilization.
Get a quote[PDF] Decentralized energy-saving hydraulic concepts for
May 02, 2016 · For the example of an excavator arm drive with a double cylinder two compact hydraulic circuits are presented, which relieve a central hydraulic system. The high price of batteries in working machines with electric drives offer a potential for investment in energy-saving hydraulic systems. The decentralized power network opens up new approaches for hydraulicand hybrid circuits.
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Energies | Free Full-Text | Energy Efficiency and
Oct 19, 2021 · A review of the possibilities of energy recovery systems for hybrid hydraulic excavators is described in detail by Do et al. . 3. Valve Methods for Controlling the Movement of the Actuator Piston Rod. This has to do with energy-saving requirements [34,43,44].
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Komatsu Hybrid Technology
With Komatsu's unique hybrid system, dependable and durable Komatsu components harness free kinetic energy, convert it to electricity for a powerful and quiet performance and help to reduce your carbon footprint and fuel consumption by up to 40%. Enjoy a new work experience with the most reliable and technologically advanced excavators in the industry.
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Energy-Saving Hydraulics - Mobile Hydraulic Tips
Nov 22, 2010 · Four parallel hydraulic hybrid-diesel collection trucks have been incorporated into Waste Management's fleet and are being tested in Fort Worth to optimize the hybrid system's efficiency and reliability. Hydraulic hybrid vehicle stores braking energy in the accumulator, then retrieves it when the truck pulls forward.
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A Boom Energy Regeneration System of Hybrid Hydraulic
Dec 22, 2020 · In this paper, a novel design of an energy regeneration system was proposed for recovering as well as reusing potential energy in a boom cylinder. The proposed system included a hydraulic pump/motor and an electrical motor/generator. When the boom moved down, the energy regeneration components converted the hydraulic energy to electrical energy and stored in a battery.
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Simulation and Experimental Research on Slewing System
Apr 13, 2019 · Abstract: With increasing environmental pollution and rising oil prices, energy-saving and emission-reduction technologies of excavators are getting more and more attention. In order to recover the kinetic energy of the excavator's rotary braking process, this paper studied the hydraulic system of the excavator's rotary hydraulic system, designed a hydraulic system that recovers the rotational
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Energy-saving analysis of hydraulic hybrid excavator based
4 rows · Energy-saving research of excavators is becoming one hot topic due to the increasing energy
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The new ZH210-5 hybrid excavator will provide energy-saving performance on any earthmoving or construction site, but without compromising on power, speed or ease of operation. Thanks to the flexible combination of a proven hydraulic motor and an eco-
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A novel energy recovery system for parallel hybrid
Oct 22, 2014 · Hydraulic excavator energy saving is important to relieve source shortage and protect environment. This paper mainly discusses the energy saving for the hybrid hydraulic excavator. By analyzing the excess energy of three hydraulic cylinders in the conventional hydraulic excavator, a new boom potential energy recovery system is proposed.
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An Energy Efficient Power-Split Hybrid Transmission System
May 28, 2021 · This paper proposes a novel hybrid power-split transmission to drive hydraulic implements in construction machinery. The highly efficient power-split hybrid transmission is combined with displacement-controlled (DC) actuators to eliminate throttling losses within the hydraulic system and achieve higher fuel savings.
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A generation step for an electric excavator with a control
May 01, 2013 · Nowadays with the high fuel prices, the demands for energy saving and green emission of construction machineries, without sacrifice of the working performance, safety and reliability, especially for hydraulic excavators (HYEXs), have been highly increased. As a result, electro-hydraulic actuator (EHA), which is promoted and successfully applied to automobile industry, is recently …
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Energies | Free Full-Text | Energy Efficiency and
Oct 19, 2021 · A review of the possibilities of energy recovery systems for hybrid hydraulic excavators is described in detail by Do et al. . 3. Valve Methods for Controlling the Movement of the Actuator Piston Rod. This has to do with energy-saving requirements [34,43,44].
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Engineering a groundbreaking hydraulic hybrid
Sep 16, 2016 · In comparison to electric high-voltage technology, accumulators are simple, proven devices for hydraulic energy storage. A hybrid excavator also had to be commercially viable and profitable for our customers. Our research showed system costs, and the potential savings and payback time, weighed in favor of the hydraulic hybrid.
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In the new five years of the trillion market of
Nov 29, 2021 · "In terms of new energy, the company has successfully developed hybrid excavator in 2009 and launched new energy engineering machinery of the whole product line in 2021. For 2025, we have set an ambitious goal for green design.
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Hydraulic accumulator-motor-generator energy regeneration
Oct 25, 2012 · Though the traditional energy regeneration system(ERS) which used a hydraulic motor and a generator in hybrid excavators can regenerate part of the energy, the power of the motor and the generator should be larger and the time for regenerating energy is so short. At first, the structure of new ERS that combines the advantages of an electric and hydraulic accumulator is analyzed.
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