This paper studies the proportional directional controlvalves design influence on the energetic behavior of amid-power compact excavator.In particular, with reference to the hydraulic circuitactuating the primary workgroup, in the paper thehydraulic power metering performed with the boomcylinder proportional control valve is studied, and somedesign solution useful in reducing both the hydraulicpower dissipation, and the power absorption from themachinery prime mover are highlighted.The analysis, experimentally performed for differentoperating conditions, is carried out highlighting theinfluence of a metering configuration both on the supplypressure modulation and on the flow-rate supplied tothe actuator.The hydraulic power metering and the boom actuationhydraulic efficiency are defined for two alternativeproportional control valve metering configurations and,within the limits implicitly implied on the actuation circuitarchitecture, a possible design solution in determiningthe improvement of the boom actuation systemperformances is investigated.

Studying the Efficiency of a Compact Excavator Primary Workgroup Hydraulic Control System / Borghi, Massimo; Milani, Massimo; Paltrinieri, Fabrizio; Zardin, Barbara. - STAMPA. - SP - 1989:(2005), pp. 1-11. ((Intervento presentato al convegno Commercial Vehicle Engineering Congress and Exhibition tenutosi a Chicago, Illinois, USA nel November 1-3.

Studying the Efficiency of a Compact Excavator Primary Workgroup Hydraulic Control System

BORGHI, Massimo;MILANI, Massimo;PALTRINIERI, Fabrizio;ZARDIN, Barbara
2005

Abstract

This paper studies the proportional directional controlvalves design influence on the energetic behavior of amid-power compact excavator.In particular, with reference to the hydraulic circuitactuating the primary workgroup, in the paper thehydraulic power metering performed with the boomcylinder proportional control valve is studied, and somedesign solution useful in reducing both the hydraulicpower dissipation, and the power absorption from themachinery prime mover are highlighted.The analysis, experimentally performed for differentoperating conditions, is carried out highlighting theinfluence of a metering configuration both on the supplypressure modulation and on the flow-rate supplied tothe actuator.The hydraulic power metering and the boom actuationhydraulic efficiency are defined for two alternativeproportional control valve metering configurations and,within the limits implicitly implied on the actuation circuitarchitecture, a possible design solution in determiningthe improvement of the boom actuation systemperformances is investigated.
Commercial Vehicle Engineering Congress and Exhibition
Chicago, Illinois, USA
November 1-3
SP - 1989
1
11
Borghi, Massimo; Milani, Massimo; Paltrinieri, Fabrizio; Zardin, Barbara
Studying the Efficiency of a Compact Excavator Primary Workgroup Hydraulic Control System / Borghi, Massimo; Milani, Massimo; Paltrinieri, Fabrizio; Zardin, Barbara. - STAMPA. - SP - 1989:(2005), pp. 1-11. ((Intervento presentato al convegno Commercial Vehicle Engineering Congress and Exhibition tenutosi a Chicago, Illinois, USA nel November 1-3.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/464035
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? ND
social impact