Excavator energy storage tips

How many energy storage devices do excavators need?

The regeneration system always requires at least one energy storage device. However, using a single storage device is difficult to meet the need for energy recuperation as well as performance satisfaction of excavators. Some researches combine two independent energy storage devices to form a combined energy storage system.

Can a hydraulic excavator save energy?

Then, a hydraulic excavator energy saving system based on three-chamber accumulator is proposed, which can store and reuse the energy loss from throttling and overflow of the hydraulic system without changing the hydraulic system of the excavator.

What is a hydraulic excavator energy saving system?

In order to address these issues, a hydraulic excavator energy saving system based on a three-chamber accumulator is proposed. Firstly, the conventional piston-type hydraulic accumulator is integrated with the hydraulic cylinder to form a three-chamber accumulator, which has a pressurizing function during energy storage.

Can excavator energy sources be recovered?

First, potential recoverable energy sources in excavator mechanisms are analyzed. Next, energy regeneration systems are classified according to energy storage devices and their development is comprehensively reviewed through the state-of-art.

What are hydraulic energy recovery methods for excavators?

Currently, the mainstream hydraulic energy recovery methods for excavators mainly include the electric energy regeneration system (EERS) and the hydraulic energy regeneration system (HERS).

What is a new energy regeneration system for hydraulic excavators?

Based on these insights, a novel energy regeneration system for the swing drive of the hydraulic excavators is proposed. This system integrates an automatic switch control system, designed to optimize energy savings and enhance regeneration efficiency, along with an intelligent brake control system for precise tracking of the swivel angle.