PROBLEM TO BE SOLVED: To provide a pulsation reduction device which prevents scratches of a damping device, and provide a fluid pressure control device.SOLUTION: A pulsation reduction device 10 includes a housing 11, a case 12, a plug 13, a communication passage 14, and a bladder 15. The housing 11 has a housing hole 11c communicating with an inflow port 11a and an outflow port 11b. The case 12 is housed in the housing hole 11c so as to define a circulation space R1 communicating with the inflow port 11a and the outflow port 11b. The plug 13 holds the case 12 in the housing hole 11c and seals an opening of the housing hole 11c in a fluid-tight manner. The communication passage 14 allows communication between the circulation space R1 and an internal space R2 of the case 12 and causes a part of a fluid circulating in the circulation space R1 to circulate in the internal space R2. The bladder 15 is disposed in the internal space R2 of the case 12 to damp pulsation. Since the bladder 15 is housed in the case 12, the bladder 15 is prevented from contacting with a corner part etc., of the housing 11 to be damaged.SELECTED DRAWING: Figure 1
【課題】減衰部材の傷つきを防止する脈動低減装置及び液圧制御装置を提供すること。【解決手段】脈動低減装置10は、ハウジング11、ケース12、プラグ13、連通路14及びブラダ15を備える。ハウジング11は流入口11a及び流出口11bに連通する収容孔11cを有する。ケース12は流入口11a及び流出口11bに連通する流通空間R1を区画するように収容孔11cに収容される。プラグ13はケース12を収容孔11cの内部に保持し、収容孔11cの開口を液密に封止する。連通路14は流通空間R1とケース12の内部空間R2とを連通し、流通空間R1を流通する流体の一部を内部空間R2に流通させる。ブラダ15はケース12の内部空間R2に配設されて脈動を減衰させる。ケース12にブラダ15が収容されるので、ハウジング11の角部等にブラダ15が接触して傷つくことを防止することができる。【選択図】図1
PULSATION REDUCTION DEVICE AND FLUID PRESSURE CONTROL DEVICE
脈動低減装置及び液圧制御装置
2018-05-31
Patent
Electronic Resource
Japanese
PULSATION REDUCTION DEVICE AND HYDRAULIC PRESSURE CONTROL DEVICE
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