PROBLEM TO BE SOLVED: To provide a technology capable of changing an operation speed in a telescopic motion of a cylinder device according to a situation, with a simple constitution and high efficiency.SOLUTION: A pump device includes a first pump 101 having a first discharge portion 101a and a second discharge portion 101b, a first flow channel 111 connecting a first chamber Y1 of a cylinder and the first discharge portion 101a, a second flow channel 112 connecting a second chamber Y2 of the cylinder and the second discharge portion 101b, a second pump 102 having a third discharge portion 102a and a forth discharge portion 102b, a third flow channel 113 connecting the first chamber Y1 of the cylinder and the third discharge portion 102a, a forth flow channel 114 connecting the second chamber Y2 of the cylinder and the forth discharge portion 102b, a ninth flow channel 119 branched from the third flow channel 113 and reaching a tank 180, and a ninth flow channel opening/closing valve 145 disposed in the ninth flow channel 119, and opening the ninth flow channel 119 when a pressure of the second chamber Y2 of the cylinder is higher than a prescribed pressure.SELECTED DRAWING: Figure 4
【課題】簡易な構成かつ高効率でシリンダ装置の伸縮の作動速度を状況に応じて変化させることができる技術を提供する。【解決手段】第1吐出部101aと第2吐出部101bとを有する第1ポンプ101と、シリンダの第1室Y1と第1吐出部101aとを接続する第1流路111と、シリンダの第2室Y2と第2吐出部101bとを接続する第2流路112と、第3吐出部102aと第4吐出部102bとを有する第2ポンプ102と、シリンダの第1室Y1と第3吐出部102aとを接続する第3流路113と、シリンダの第2室Y2と第4吐出部102bとを接続する第4流路114と、第3流路113から分岐してタンク180に至る第9流路119と、第9流路119に設けられ、シリンダの第2室Y2の圧力が所定圧力よりも高い場合に第9流路119を開放する第9流路開閉弁145とを備える。【選択図】図4
PUMP DEVICE, AND TILT/TRIM DEVICE OF OUTBOARD ENGINE
ポンプ装置、船外機のチルト・トリム装置
2016-06-23
Patent
Electronic Resource
Japanese
PUMP DEVICE AND TILT AND TRIM DEVICE FOR OUTBOARD MACHINE
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