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, a first flow channel 111 connecting a first chamber Y1 and a first discharge portion 101a, a second flow channel 112 connecting a second chamber Y2 and a second discharge portion 101b, a second pump 102, a third flow channel 113 connecting the first chamber Y1 and a third discharge portion 102a, a forth flow channel 114 connecting the second chamber Y2 and a forth discharge portion 102b, a first check valve 131 disturbing flow from the first flow channel 111 to the third discharge portion 102a, a second check valve 132 disturbing flow from the second flow channel 112 to the forth discharge portion 102b, a fifth flow channel opening/closing valve 141 disposed in the fifth flow channel 115 and opening the fifth flow channel 115 by receiving a pressure of the second flow channel 112, and a sixth flow channel opening/closing valve 142 disposed in the sixth flow channel 116 and opening the sixth flow channel 116 by receiving a pressure of the first flow channel 111.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ポンプ101と、第1室Y1と第1吐出部101aとを接続する第1流路111と、第2室Y2と第2吐出部101bとを接続する第2流路112と、第2ポンプ102と、第1室Y1と第3吐出部102aとを接続する第3流路113と、第2室Y2と第4吐出部102bとを接続する第4流路114と、第1流路111から第3吐出部102aへの流れを妨げる第1チェックバルブ131と、第2流路112から第4吐出部102bへの流れを妨げる第2チェックバルブ132と、第5流路115に設けられ、第2流路112の圧力を受けて第5流路115を開放する第5流路開閉弁141と、第6流路116に設けられ、第1流路111の圧力を受けて第6流路116を開放する第6流路開閉弁142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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