Comparison of the structural and total energy efficiency of selected hydraulic systems with proportional control linear motor

• Autorzy: Skorek G.

Identyfikatory

DOI

10.5604/12314005.1213742

• Języki publikacji: EN

Abstrakty

EN

In the paper are presented the diagrams of the structural energy efficiency of system with the throttling control assembly and total energy efficiency of the system with constant or variable capacity pump cooperating an overflow valve with the throttling control of the linear hydraulic motor. Diagrams of total energy efficiency of three hydraulic systems working at the same parameters of speed and load of hydraulic linear motor, which were different due to structure and ability of energy saving were presented and compared. This publication also presents analyses and compares the areas of the power fields of energy losses occurring in the elements of three compared hydraulic systems with different structures of the hydraulic linear motor speed control on example on Load Sensing system. The graphical interpretation of the power of losses in the hydrostatic drive and control system elements lets to compare the same power fields of energy losses with other power fields of another structure. This enables to understand what energy losses are the biggest and in which elements of compared hydraulic systems. The best possibility to use in system, as a supply source of the hydraulic cylinder speed series throttling control assembly, is a set consisting of a variable capacity pump cooperating with a Load Sensing (LS) regulator, which totally eliminates the structural volumetric losses in a system. Power ΔPstv of structural volumetric losses is equal to zero, because the current pump capacity QP is adjusted, by the LS regulator, to the current flow intensity QM set by the throttling assembly.

Słowa kluczowe

EN

energy efficiency; power of losses; hydrostatic system; throttling steering; pump; hydraulic linear motor; proportional directional valve

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 2
• Strony: 317--324
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Skorek G.

• Gdynia Maritime University Department of Engineering Sciences Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Paszota, Z, Energy losses in hydrostatic drive, Monography, pp. 570, Lambert, Berlin 2015.
• [2] Skorek, G., Comparison of the energy efficiency two hydraulic systems with throttling steering, Joint Proceedings, Hochschule Bremerhaven, No. 24, 10, pp. 60-68, 2011.
• [3] Skorek, G., Graphical interpretation of the power of energy losses and power developed in the hydrostatic drive and control system elements, Polish Maritime Research, No. 4, pp. 44-53, 2012.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.