JPH0185590U - - Google Patents
Info
- Publication number
- JPH0185590U JPH0185590U JP18303587U JP18303587U JPH0185590U JP H0185590 U JPH0185590 U JP H0185590U JP 18303587 U JP18303587 U JP 18303587U JP 18303587 U JP18303587 U JP 18303587U JP H0185590 U JPH0185590 U JP H0185590U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic switching
- valve
- switching device
- preventing cavitation
- relief valve
- 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
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- Details Of Valves (AREA)
Description
第１図は本実施例にかかる低騒音型の油圧切換
装置の全体の概略構成を示す全体図、第２図は第
１図の各機器の構造をより具体的に示した全体構
成図、第３図は本油圧切換弁の戻り側のポートで
の圧力と流量の関係を示す圧力―流量線図、第４
図は従来の油圧切換装置の全体の概略構成を示す
全体図、第５図は円板弁の構造を示す側断面図で
ある。
１……油圧切換弁、３……流量調整弁、４……
円板弁、Ｐｓ……背圧。
FIG. 1 is an overall diagram showing the general configuration of the low-noise hydraulic switching device according to this embodiment, FIG. 2 is an overall configuration diagram showing more specifically the structure of each device in FIG. Figure 3 is a pressure-flow diagram showing the relationship between pressure and flow at the return side port of this hydraulic switching valve.
The figure is an overall view showing the overall general structure of a conventional hydraulic switching device, and FIG. 5 is a side sectional view showing the structure of a disc valve. 1... Hydraulic switching valve, 3... Flow rate adjustment valve, 4...
Disc valve, Ps...back pressure.
Claims (1)
圧切換弁を具備した油圧切換装置において、 上記油圧切換弁の戻り側に、該戻り側の流路に
背圧を形成しキヤビテーシヨンの発生を防止する
リリーフ弁と、該リリーフ弁で発生するキヤビテ
ーシヨンを防止するための円板弁を配設したこと
を特徴とする低騒音型油圧切換装置。[Scope of Claim for Utility Model Registration] In a hydraulic switching device equipped with a hydraulic switching valve for selectively sending pressure oil to an actuator, back pressure is created in the flow path on the return side of the hydraulic switching valve. 1. A low-noise hydraulic switching device comprising: a relief valve for preventing cavitation; and a disc valve for preventing cavitation occurring at the relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987183035U JPH0448392Y2 (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987183035U JPH0448392Y2 (en) | 1987-11-30 | 1987-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0185590U true JPH0185590U (en) | 1989-06-07 |
| JPH0448392Y2 JPH0448392Y2 (en) | 1992-11-13 |
Family
ID=31474468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987183035U Expired JPH0448392Y2 (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448392Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124138A (en) * | 1974-08-21 | 1976-02-26 | Matsushita Electric Industrial Co Ltd | |
| JPS5550453U (en) * | 1978-09-29 | 1980-04-02 |
-
1987
- 1987-11-30 JP JP1987183035U patent/JPH0448392Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124138A (en) * | 1974-08-21 | 1976-02-26 | Matsushita Electric Industrial Co Ltd | |
| JPS5550453U (en) * | 1978-09-29 | 1980-04-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0448392Y2 (en) | 1992-11-13 |