A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC CIRCUIT
To provide a hydraulic circuit which can perform action (especially lowering action) of a supporting member such as a boom with good energy efficiency.SOLUTION: A hydraulic circuit 10 is equipped with a selector valve 40 which communicates with a head side chamber 84 and switches an oil path 11 according to the pressure of a hydraulic fluid from the head side chamber 84; and a communication path 23 which communicates the head side chamber 84 and a rod side chamber 83. The selector valve 40 intercepts communication between a hydraulic source 12 and a rod side chamber 83, when the pressure of the hydraulic fluid from the head side chamber 84 is a switch pressure or more.SELECTED DRAWING: Figure 2
【課題】ブームなどの支持部材の動作（特に下降動作）をエネルギー効率良く行える油圧回路を提供する。【解決手段】油圧回路１０は、ヘッド側チャンバー８４に連通し、ヘッド側チャンバー８４からの作動油の圧力に応じて油路１１を切り換えるセレクター弁４０と、ヘッド側チャンバー８４とロッド側チャンバー８３とを連通させる連絡路２３とを備える。セレクター弁４０は、ヘッド側チャンバー８４からの作動油の圧力が切換圧以上の場合、油圧源１２とロッド側チャンバー８３との間の連通を遮断する。【選択図】図２
HYDRAULIC CIRCUIT
To provide a hydraulic circuit which can perform action (especially lowering action) of a supporting member such as a boom with good energy efficiency.SOLUTION: A hydraulic circuit 10 is equipped with a selector valve 40 which communicates with a head side chamber 84 and switches an oil path 11 according to the pressure of a hydraulic fluid from the head side chamber 84; and a communication path 23 which communicates the head side chamber 84 and a rod side chamber 83. The selector valve 40 intercepts communication between a hydraulic source 12 and a rod side chamber 83, when the pressure of the hydraulic fluid from the head side chamber 84 is a switch pressure or more.SELECTED DRAWING: Figure 2
【課題】ブームなどの支持部材の動作（特に下降動作）をエネルギー効率良く行える油圧回路を提供する。【解決手段】油圧回路１０は、ヘッド側チャンバー８４に連通し、ヘッド側チャンバー８４からの作動油の圧力に応じて油路１１を切り換えるセレクター弁４０と、ヘッド側チャンバー８４とロッド側チャンバー８３とを連通させる連絡路２３とを備える。セレクター弁４０は、ヘッド側チャンバー８４からの作動油の圧力が切換圧以上の場合、油圧源１２とロッド側チャンバー８３との間の連通を遮断する。【選択図】図２
HYDRAULIC CIRCUIT
油圧回路
IWASAKI HITOSHI (author) / GOTO KEISUKE (author)
2019-04-04
Patent
Electronic Resource
Japanese