Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYDRAULIC CONTROL DEVICE FOR WORKING VEHICLE
A boom control valve (29) and a pulsation absorption control valve (33) are provided in the halfway point of a center bypass line (21). The pulsation absorption control valve (33) is arranged in a position downstream of the boom control valve (29). The pulsation absorption control valve (33) is switched to a blockade position (d) and a communication position (e) by a pilot pressure from a remote control valve (51). The pulsation absorption control valve (33) is constituted such that one main line (32A) out of a pair of main lines (32A), (32B) is communicated with or blocked off from an accumulator (38) via one communication line (36A) and the other main line (32B) is communicated with or blocked off from the side of a tank (11) via the other communication line (36B). The accumulator (38) is operated as a dynamic damper at the traveling of a vehicle. This arrangement enables the construction of the communication line (36A) to be simplified, thus improving operability at assembling.
HYDRAULIC CONTROL DEVICE FOR WORKING VEHICLE
A boom control valve (29) and a pulsation absorption control valve (33) are provided in the halfway point of a center bypass line (21). The pulsation absorption control valve (33) is arranged in a position downstream of the boom control valve (29). The pulsation absorption control valve (33) is switched to a blockade position (d) and a communication position (e) by a pilot pressure from a remote control valve (51). The pulsation absorption control valve (33) is constituted such that one main line (32A) out of a pair of main lines (32A), (32B) is communicated with or blocked off from an accumulator (38) via one communication line (36A) and the other main line (32B) is communicated with or blocked off from the side of a tank (11) via the other communication line (36B). The accumulator (38) is operated as a dynamic damper at the traveling of a vehicle. This arrangement enables the construction of the communication line (36A) to be simplified, thus improving operability at assembling.
HYDRAULIC CONTROL DEVICE FOR WORKING VEHICLE
HYDRAULISCHE STEUERVORRICHTUNG FÜR EIN NUTZFAHRZEUG
DISPOSITIF DE COMMANDE HYDRAULIQUE POUR VÉHICULE DE TRAVAIL
KOBAYASHI TAKESHI (Autor:in) / YAMASHITA RYOUHEI (Autor:in) / MATSUZAKI HIROSHI (Autor:in) / KOBAYASHI YOSHINOBU (Autor:in) / UENO KATSUMI (Autor:in) / ANDOU MASAAKI (Autor:in)
08.05.2019
Patent
Elektronische Ressource
Englisch
IPC:
F15B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
,
Druckmittelbetriebene Systeme allgemein
/
B66C
Krane
,
CRANES
/
E02F
Baggern
,
DREDGING
/
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein
/
F16F
SPRINGS
,
Federn
Working vehicle and hydraulic fluid amount control method for working vehicle
| Europäisches Patentamt | 2015