{"id":5254,"date":"2020-03-30T15:22:18","date_gmt":"2020-03-30T15:22:18","guid":{"rendered":"https:\/\/www.tfsoleodinamica.it\/?p=5254"},"modified":"2020-11-09T13:10:23","modified_gmt":"2020-11-09T13:10:23","slug":"sytronix_rexroth","status":"publish","type":"post","link":"https:\/\/www.tfsoleodinamica.it\/en\/sytronix_rexroth\/","title":{"rendered":"SYTRONIX GREEN POWER SYSTEM by REXROTH. A case study of virtuous collaboration"},"content":{"rendered":"
[vc_row][vc_column][vc_column_text title=”Importance of the overall energy conversion efficiency of electric propulsion”]The electric drive<\/strong> mechanism is one of the vital components of a motor-pump system comprising an electric drive circuit, an energy storage system and a transmission unit. In particular, when such a system requires high energy density for rapid dynamic response, its design should be capable of meeting a range of requirements<\/strong>, such as optimal acceleration, high torque, efficient and adjustable speed, and, last but not least, energy efficiency.<\/p>\n

In terms of the overall energy conversion efficiency of electric propulsion<\/strong>, currently available systems vary according to various parameters: motor power losses, harmonic distortions, torque pulsations, etc.<\/p>\n

There are numerous research projects continuing to improve the energy efficiency of hydraulic systems and beyond, with various solutions already available on the market.<\/p>\n

With technological advances, there are numerous approaches that can improve the energy efficiency of hydraulic systems, such as hybrid electro-hydraulic energy recovery methods, load-sensing mechanisms, multi-actuator hybrid hydraulic systems with controlled displacement (DC), independent metering valves, multi-stage bionic power supply, pump-controlled actuators, and hydraulic transformers incorporating a hydraulic vane motor and an oscillating plate pump.[\/vc_column_text][vc_single_image image=”5258″ img_size=”full” alignment=”center” style=”vc_box_shadow_3d” title=”Injection moulding machine scheme”][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]In this spirit of innovation, the partnership between Tecno Fluid Service SRL<\/strong> and Bosch Rexroth<\/strong><\/a> continues to yield excellent results. The Rexroth Sytronix Green Power<\/strong><\/a> is the result of this collaboration, and the case study discussed here summarises it. Indeed, in collaboration with a major company operating in the automotive sector (which we will refer to here as Company A), it has been possible to accelerate the development of an innovative technology capable of achieving significant energy savings in motor-pump hydraulic systems on plastic moulding \u2018injection moulding\u2019 machines.[\/vc_column_text][vc_single_image image=”5259″ img_size=”full” css=”.vc_custom_1585561788421{padding-top: 30px !important;}”][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]The partnership for the Sytronix Rexroth Green Power<\/strong> between Rexroth, TFS and Company A has made it possible to combine and pool expertise from three key fields: control<\/strong> engineering, fluid mechanics<\/strong> and materials technology<\/strong>.<\/p>\n

Expertise in control systems<\/strong> was required to characterise the dynamics of each component, to control the dynamic performance, position, pressure and other parameters of a specific component or circuit, where electronics plays a decisive role in this field.<\/p>\n

Fluid mechanics<\/strong> provided the tools to understand the behaviour of fluids, the forces exerted by static and dynamic fluids on components, and phenomena such as water hammer and cavitation.<\/p>\n

The selection of materials<\/strong> with appropriate elasticity, hardness, friction properties, etc. was a decisive factor in the design of power components.[\/vc_column_text][vc_gallery interval=”0″ images=”5261,5263,5264,5262″ img_size=”full” css=”.vc_custom_1585562410391{padding-top: 30px !important;}”][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text title=”The lower utilisation or “quiet“ state of Sytronix during pressure\/flow cycle operations allows lower FEM consumption, generating higher savings.”]The results<\/strong> of this collaboration have made it possible to overcome the limitations of a standard circuit based on the use of an inverter<\/strong>, including:<\/p>\n