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公开(公告)号:US20170159678A1
公开(公告)日:2017-06-08
申请号:US14961244
申请日:2015-12-07
申请人: Caterpillar Inc.
CPC分类号: F15B11/17 , E02F3/34 , E02F9/2217 , E02F9/2228 , E02F9/2242 , E02F9/2253 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B1/024 , F15B2211/20523 , F15B2211/20546 , F15B2211/20569 , F15B2211/20576 , F15B2211/212 , F15B2211/27 , F15B2211/30525 , F15B2211/3053 , F15B2211/3111 , F15B2211/3144 , F15B2211/31523 , F15B2211/351 , F15B2211/455 , F15B2211/613 , F15B2211/6346 , F15B2211/665 , F15B2211/7135 , F15B2211/851 , F15B2211/88 , F16H61/4078
摘要: A hydraulic system is disclosed for use with a machine. The hydraulic system may have a closed-loop, meterless hydraulic circuit with a first pump fluidly connected to a first actuator. The hydraulic system may also have a closed-loop, metered hydraulic circuit with a second pump fluidly connected to a second actuator. The hydraulic system may further have a combiner valve configured to selectively direct fluid from the closed-loop metered hydraulic circuit to the closed-loop meterless hydraulic circuit.