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Machine translation
1. (WO1998013603) HYDRAULIC OIL RECOVERY/REUTILIZATION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1998/013603    International Application No.:    PCT/JP1997/003416
Publication Date: 02.04.1998 International Filing Date: 25.09.1997
Chapter 2 Demand Filed:    28.10.1997    
IPC:
E02F 9/22 (2006.01), F15B 1/02 (2006.01), F15B 21/14 (2006.01)
Applicants: KOMATSU LTD. [JP/JP]; 3-6, Akasaka 2-chome, Minato-ku, Tokyo 107 (JP) (For All Designated States Except US).
ENDO, Hiroshi [JP/JP]; (JP) (For US Only).
YOSHIDA, Nobumi [JP/JP]; (JP) (For US Only).
MARUTA, Kazuhiro [JP/JP]; (JP) (For US Only)
Inventors: ENDO, Hiroshi; (JP).
YOSHIDA, Nobumi; (JP).
MARUTA, Kazuhiro; (JP)
Agent: HAMAMOTO, Tadashi; Bansui Building, 5-16, Toranomon 1-chome, Minato-ku, Tokyo 105 (JP)
Priority Data:
8/252999 25.09.1996 JP
Title (EN) HYDRAULIC OIL RECOVERY/REUTILIZATION SYSTEM
(FR) SYSTEME DE RECUPERATION/REUTILISATION D'HUILE HYDRAULIQUE
Abstract: front page image
(EN)The energy of a return hydraulic oil of an actuator is recovered and is reutilized as energy for operating other actuators. A first pump/motor (16) and a second pump/motor (17) are mechanically connected to form a pressure convertor (18), and a first circuit (22), to which the return hydraulic oil is supplied, is connected to the first pump/motor (16). An accumulator (27) is provided to a second circuit (25) connected to the second pump/motor (17). The first circuit (22) is connected to a discharge line of a main hydraulic pump (10) by a third circuit (29) and the pressure of a high pressure hydraulic oil is stored by the energy of the return hydraulic oil. The high pressure hydraulic oil is supplied to the discharge line (11) by the pressure of the high pressure hydraulic oil, and is reutilized.
(FR)Ce système consiste à récupérer et réutiliser l'énergie d'une huile hydraulique de retour d'un actionneur en tant qu'énergie destinée à faire fonctionner d'autres actionneurs. On a relié mécaniquement un premier (16) et un second (17) moteur/pompe, afin de former un convertisseur de pression (18), on a raccordé sur le premier moteur/pompe (16) un premier circuit (22) auquel est fournie l'huile hydraulique de retour, et sur le second moteur/pompe (17) un second circuit (25) pourvu d'un accumulateur (27). On a relié le premier circuit (22) à une conduite de retour d'une pompe hydraulique principale (10) au moyen d'un troisième circuit (29), la pression de l'huile hydraulique haute pression étant stockée à l'aide de l'énergie de cette huile de retour. On envoie l'huile hydraulique haute pression vers la conduite de retour (11) au moyen de la pression de cette huile que l'on réutilise ensuite.
Designated States: CN, JP, KR, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)