JPS60188277U - Noise prevention device for balanced piston type relief valve - Google Patents
Noise prevention device for balanced piston type relief valveInfo
- Publication number
- JPS60188277U JPS60188277U JP7448284U JP7448284U JPS60188277U JP S60188277 U JPS60188277 U JP S60188277U JP 7448284 U JP7448284 U JP 7448284U JP 7448284 U JP7448284 U JP 7448284U JP S60188277 U JPS60188277 U JP S60188277U
- Authority
- JP
- Japan
- Prior art keywords
- holes
- inlet
- piston type
- valve
- row
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案の１実施例を示すもので第１図は開弁の初
期を示す縦断面図、第２図は開弁の後期を示す縦断面図
である。
１・・・ピストン型弁体、４・・・流入口、５・・・流
出口、６・・・連通路、７・・・油室、１０・・・ばね
、１１・・・弁座、１２・・・プランジャ部、１４・・
・第１列の透孔、１５・・・第２列の透孔、１６・・・
軸孔、１７・・・傾斜面、１８・・・凹溝、１９・・・
隔壁。The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view showing the early stage of valve opening, and FIG. 2 is a vertical cross-sectional view showing the latter stage of valve opening. DESCRIPTION OF SYMBOLS 1... Piston type valve body, 4... Inlet, 5... Outlet, 6... Communication passage, 7... Oil chamber, 10... Spring, 11... Valve seat, 12... Plunger part, 14...
・First row of through holes, 15...Second row of through holes, 16...
Shaft hole, 17... Inclined surface, 18... Concave groove, 19...
bulkhead.
Claims (1)
の背叩に、流入口側の油圧を導入する油室７を設け、該
油室７内のばね１０で弁体１を流入口４に設けた弁座１
１に弾着させたバランスピストン型リリーフ弁において
、前記弁体１に、前記流入口４−＆流出口５との連通路
６内に嵌入されるプランジャ部１２を設け、該プランジ
ャ部１２に、周方向に等分されて穿設される第１列の透
孔１４と該透孔１４から軸方向に間隔を存して周方向に
等分されて穿設される第２列の透孔１５と、これら透孔
１４，１５間を連通ずる軸孔１６とを設けると共に前記
連通路６の外壁に前記弁座１１から順次径を増大する傾
斜面１７を有する凹溝１８を前記第１列の透孔１４に対
向して設け、該凹溝１８に隣接する隔壁１９を介して前
記流出口５を前記第２列の透孔１４に対向して開口させ
たことを特徴とするバランスピストン型リリーフ弁の騒
音防止装置。Piston-type valve body 1 that closes communication between the inlet 4 and the outlet 5
An oil chamber 7 for introducing hydraulic pressure from the inlet side is provided on the back of the valve seat 1, and a spring 10 in the oil chamber 7 moves the valve body 1 to the inlet 4.
In the balanced piston type relief valve, the valve body 1 is provided with a plunger portion 12 that is fitted into the communication path 6 between the inlet 4 and the outlet 5, and the plunger portion 12 includes: A first row of through holes 14 that are equally divided in the circumferential direction and a second row of through holes 15 that are equally divided in the circumferential direction and spaced from the through holes 14 in the axial direction. and a shaft hole 16 that communicates between the through holes 14 and 15, and a concave groove 18 having an inclined surface 17 whose diameter increases sequentially from the valve seat 11 on the outer wall of the communication passage 6. A balanced piston type relief characterized in that the outlet 5 is provided opposite to the through hole 14 and opened through a partition wall 19 adjacent to the groove 18 to face the second row of through holes 14. Valve noise prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7448284U JPS60188277U (en) | 1984-05-23 | 1984-05-23 | Noise prevention device for balanced piston type relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7448284U JPS60188277U (en) | 1984-05-23 | 1984-05-23 | Noise prevention device for balanced piston type relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60188277U true JPS60188277U (en) | 1985-12-13 |
| JPS622372Y2 JPS622372Y2 (en) | 1987-01-20 |
Family
ID=30614823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7448284U Granted JPS60188277U (en) | 1984-05-23 | 1984-05-23 | Noise prevention device for balanced piston type relief valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60188277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101337791B1 (en) * | 2010-12-30 | 2013-12-06 | 주식회사 두산 | Rotating motor having anti cavitation |
| WO2014203766A1 (en) * | 2013-06-17 | 2014-12-24 | 株式会社山田製作所 | Valve structure |
-
1984
- 1984-05-23 JP JP7448284U patent/JPS60188277U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101337791B1 (en) * | 2010-12-30 | 2013-12-06 | 주식회사 두산 | Rotating motor having anti cavitation |
| WO2014203766A1 (en) * | 2013-06-17 | 2014-12-24 | 株式会社山田製作所 | Valve structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS622372Y2 (en) | 1987-01-20 |
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