JPS6414971U - - Google Patents
Info
- Publication number
- JPS6414971U JPS6414971U JP10889787U JP10889787U JPS6414971U JP S6414971 U JPS6414971 U JP S6414971U JP 10889787 U JP10889787 U JP 10889787U JP 10889787 U JP10889787 U JP 10889787U JP S6414971 U JPS6414971 U JP S6414971U
- Authority
- JP
- Japan
- Prior art keywords
- stepped
- spring
- chamber
- spring receiving
- liquid chamber
- 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
- 238000013016 damping Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Safety Valves (AREA)
Description
第１図は本考案の実施例の一部切欠き縦断面図
、第２図は同実施例のダンピング機構の一部切欠
き断面図、第３図は同ダンピング機構のダンピン
グ作用説明図、第４図は本考案の他の実施例のダ
ンピング機構の一部切欠き断面図、第５図は同ダ
ンピング機構のダンピング作用説明図、第６図は
ダンピング室がない場合、段付ばね受けピストン
部がストロークエンドに達した瞬間に段付ばね受
けピストン部に作用する液圧ＰＢの変動状態を示
す図表、第７図は同リリーフ圧力ＰＡの変動状態
を示す図表、第８図はダンピング室を有する場合
で、リリーフ弁始動時における段付ばね受けピス
トン部に作用する液圧力と時間との関係を示す図
表、第９図は同リリーフ圧力と時間との関係を示
す図表、第１０図は従来品の一部切欠き縦断面図
である。
１……供給通路、２……液室、３……プランジ
ヤ、４……ばね、５……弁本体、６……段付シリ
ンダ部、７……段付ばね受けピストン部、８……
ダンピング室、９……ばね室、１０，１０′……
絞り通路。
Fig. 1 is a partially cutaway vertical sectional view of an embodiment of the present invention, Fig. 2 is a partially cutaway sectional view of the damping mechanism of the same embodiment, Fig. 3 is an explanatory diagram of the damping action of the damping mechanism, Fig. 4 is a partially cutaway sectional view of a damping mechanism according to another embodiment of the present invention, Fig. 5 is an explanatory view of the damping action of the same damping mechanism, and Fig. 6 is a stepped spring receiver piston section when there is no damping chamber. A chart showing the fluctuation state of the hydraulic pressure PB acting on the stepped spring receiver piston section at the moment when the piston reaches the stroke end, Fig. 7 is a chart showing the fluctuation state of the same relief pressure PA, and Fig. 8 has a damping chamber. Figure 9 is a diagram showing the relationship between the relief pressure and time, and Figure 10 is a diagram showing the relationship between the hydraulic pressure acting on the stepped spring receiver piston and time when the relief valve is started. FIG. DESCRIPTION OF SYMBOLS 1... Supply passage, 2... Liquid chamber, 3... Plunger, 4... Spring, 5... Valve body, 6... Stepped cylinder part, 7... Stepped spring receiving piston part, 8...
Damping chamber, 9... Spring chamber, 10, 10'...
Aperture passage.
Claims (1)
ることによりばね受け部を介してばねを圧縮して
設定圧力を調整するリリーフ弁において、前記ば
ね受け部を弁本体の段付シリンダ部に嵌挿する段
付ばね受けピストン部となし、この段付ばね受け
ピストン部と段付シリンダ部とで段付箇所にダン
ピング室を形成し、このダンピング室を前記液室
又はばね室へ段付ばね受けピストン部と段付シリ
ンダ部の摺動面に形成した絞り通路を介して連通
すると共に、供給側の圧液をプランジヤの孔、ロ
ツドの貫通孔を経て液室に導くようにしたことを
特徴とするリリーフ弁。 In a relief valve that adjusts the set pressure by compressing a spring through the spring receiving part by introducing pressure fluid on the supply side into a liquid chamber behind the spring receiving part, the spring receiving part is connected to a stepped cylinder part of the valve body. The stepped spring bearing piston part and the stepped cylinder part form a damping chamber at the stepped part, and this damping chamber is stepped into the liquid chamber or spring chamber. The spring receiving piston part and the stepped cylinder part communicate with each other through a throttle passage formed on the sliding surface, and the pressure fluid on the supply side is guided to the liquid chamber through the hole in the plunger and the through hole in the rod. Features a relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987108897U JPH0520937Y2 (en) | 1987-07-15 | 1987-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987108897U JPH0520937Y2 (en) | 1987-07-15 | 1987-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414971U true JPS6414971U (en) | 1989-01-25 |
| JPH0520937Y2 JPH0520937Y2 (en) | 1993-05-28 |
Family
ID=31344659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987108897U Expired - Lifetime JPH0520937Y2 (en) | 1987-07-15 | 1987-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0520937Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012017799A (en) * | 2010-07-07 | 2012-01-26 | Aisin Seiki Co Ltd | Relief valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835423A (en) * | 1971-09-13 | 1973-05-24 | ||
| JPS4913430U (en) * | 1972-05-04 | 1974-02-04 |
-
1987
- 1987-07-15 JP JP1987108897U patent/JPH0520937Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835423A (en) * | 1971-09-13 | 1973-05-24 | ||
| JPS4913430U (en) * | 1972-05-04 | 1974-02-04 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012017799A (en) * | 2010-07-07 | 2012-01-26 | Aisin Seiki Co Ltd | Relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0520937Y2 (en) | 1993-05-28 |
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