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Pub. No.:    WO/2010/026848    International Application No.:    PCT/JP2009/063865
Publication Date: 11.03.2010 International Filing Date: 05.08.2009
F15B 11/02 (2006.01), E02F 9/22 (2006.01), F15B 11/17 (2006.01)
Applicants: YANMAR CO., LTD. [JP/JP]; 1-32, Chayamachi, Kita-ku, Osaka-shi, Osaka 5300013 (JP) (For All Designated States Except US).
SAKAMOTO Kunihiko [JP/JP]; (JP) (For US Only).
FUJITA Riki [JP/JP]; (JP) (For US Only).
YAMASHITA Masaaki [JP/JP]; (JP) (For US Only).
OGATA Nagahiro [JP/JP]; (JP) (For US Only).
YAMASHITA Yousuke [JP/JP]; (JP) (For US Only)
Inventors: SAKAMOTO Kunihiko; (JP).
FUJITA Riki; (JP).
YAMASHITA Masaaki; (JP).
OGATA Nagahiro; (JP).
Agent: YANO Juichiro; (JP)
Priority Data:
2008-225257 02.09.2008 JP
(JA) 作業車両の油圧回路
Abstract: front page image
(EN)A working vehicle, wherein flows of hydraulic oil delivered under pressure from two or more hydraulic pumps are joined together and the joined hydraulic oil can be taken out. A working vehicle is provided with two hydraulic pumps independent of each other and adapted to deliver hydraulic oil under pressure, a mode switching valve (230) capable of being switched to a flow joining position (K) at which flows of the hydraulic oil delivered under pressure by the two hydraulic pumps are joined together, PTO ports (260, 261) out of which the hydraulic oil is taken, and a PTO switching valve (240) provided downstream of the mode switching valve (230) and switching flow of the hydraulic oil so that the oil can be delivered under pressure to the PTO ports (260, 261).
(FR)L'invention porte sur un véhicule de chantier, dans lequel des écoulements d'huile hydraulique distribuée sous pression à partir de deux pompes hydrauliques, ou plus, sont réunis et l'huile hydraulique mise en commun peut être évacuée. Un véhicule de chantier comprend deux pompes hydrauliques indépendantes l'une de l'autre et aptes à distribuer de l'huile hydraulique sous pression, une soupape de commutation de mode (230) capable d'être commutée vers une position d'écoulement commun (K) au niveau de laquelle les écoulements d'huile hydraulique distribuée sous pression par les deux pompes hydrauliques sont réunis, des orifices PTO (260, 261) hors desquels l'huile hydraulique est collectée, et une soupape de commutation PTO (240) disposée en aval de la soupape de commutation de mode (230) et commutant l'écoulement de l'huile hydraulique de telle sorte que l'huile peut être distribuée sous pression aux orifices PTO (260, 261).
(JA)【課題】2つ以上の油圧ポンプにより圧送される作動油を合流し、当該合流された作動油を取り出すことが可能な作業車両を提供する。 【解決手段】作動油を圧送する互いに独立した2つの油圧ポンプと、前記2つの油圧ポンプにより圧送される作動油を合流する合流ポジションKに切り換え可能なモード切換弁230と、作動油を取り出すPTO用ポート260・261と、モード切換弁230の下流側に配置され、作動油をPTO用ポート260・261へ圧送可能に切り換えるPTO用切換弁240と、を具備した。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)