JPH02102001U - - Google Patents
Info
- Publication number
- JPH02102001U JPH02102001U JP1989011585U JP1158589U JPH02102001U JP H02102001 U JPH02102001 U JP H02102001U JP 1989011585 U JP1989011585 U JP 1989011585U JP 1158589 U JP1158589 U JP 1158589U JP H02102001 U JPH02102001 U JP H02102001U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- main valve
- inner hole
- piston
- valve seat
- 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
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は、本考案の一実施例のブレーキ回路用
リリーフ弁の断面図、第２図は、弁座筒と主弁と
の関係を示す部分断面図、第３図は、従来のブレ
ーキ回路用リリーフ弁の断面図、第４図は、ブレ
ーキ回路用リリーフ弁の特性曲線図である。
１……ブレーキ回路用リリーフ弁、２……内孔
、３……弁本体、５……モータ、６……カウンタ
ーバランス弁、７……切換弁、８……ポンプ、１
０……調圧バネ、１１……弁座筒、１２……スリ
ツト、１３……絞り孔、１４，１５……ピストン
、１７……通路、１８……クロスオーバ通路、１
９……主弁、２０……圧力室、２２……絞り孔、
２３……逆止弁、２４……スプリング、２５……
スリツト、２６……圧力室、２７……ロツド、２
８……筒体。
Fig. 1 is a sectional view of a brake circuit relief valve according to an embodiment of the present invention, Fig. 2 is a partial sectional view showing the relationship between the valve seat cylinder and the main valve, and Fig. 3 is a conventional brake circuit. FIG. 4 is a cross-sectional view of the brake circuit relief valve, and is a characteristic curve diagram of the brake circuit relief valve. 1...Relief valve for brake circuit, 2...Inner hole, 3...Valve body, 5...Motor, 6...Counter balance valve, 7...Switching valve, 8...Pump, 1
0... Pressure adjustment spring, 11... Valve seat cylinder, 12... Slit, 13... Throttle hole, 14, 15... Piston, 17... Passage, 18... Crossover passage, 1
9... Main valve, 20... Pressure chamber, 22... Throttle hole,
23...Check valve, 24...Spring, 25...
Slit, 26... Pressure chamber, 27... Rod, 2
8... Cylindrical body.
Claims (1)
に弁座筒を挿入し、この弁座筒の両端に当接可能
に主弁を配置し、この主弁の軸線方向に調圧バネ
とピストンを配置し、このピストンがそのピスト
ンに関連する主弁側の油圧により主弁側に移動し
調圧バネのバネ力を増加させる構成としたブレー
キ回路用リリーフ弁において、 前記弁座筒を２分割し、この２つの弁座筒間に
１本の調圧バネを配置し、この２つの弁座筒の各
々に当接可能に配置した主弁を前記ピストンによ
り押圧される構成とし、前記内孔と通路との間に
通路から内孔への流れを阻止する逆止弁を、主弁
の外周に設けたことを特徴とするブレーキ回路用
リリーフ弁。[Scope of Claim for Utility Model Registration] An inner hole is provided in the center of the valve body, a valve seat cylinder is slidably inserted into this inner hole, a main valve is arranged so as to be able to abut on both ends of this valve seat cylinder, and this For a brake circuit with a configuration in which a pressure regulating spring and a piston are arranged in the axial direction of the main valve, and this piston moves toward the main valve side by the hydraulic pressure on the main valve side related to the piston, increasing the spring force of the pressure regulating spring. In the relief valve, the valve seat tube is divided into two parts, one pressure regulating spring is arranged between the two valve seat tubes, and the main valve is arranged so as to be able to come into contact with each of the two valve seat tubes. 1. A relief valve for a brake circuit, characterized in that the relief valve is configured to be pressed by a piston and is provided on the outer periphery of the main valve between the inner hole and the passage to prevent flow from the passage to the inner hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011585U JPH083682Y2 (en) | 1989-01-31 | 1989-01-31 | Relief valve for brake circuit |
| KR1019890017084A KR0149159B1 (en) | 1989-01-31 | 1989-11-24 | Relief valve of a brake circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011585U JPH083682Y2 (en) | 1989-01-31 | 1989-01-31 | Relief valve for brake circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02102001U true JPH02102001U (en) | 1990-08-14 |
| JPH083682Y2 JPH083682Y2 (en) | 1996-01-31 |
Family
ID=11781984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989011585U Expired - Lifetime JPH083682Y2 (en) | 1989-01-31 | 1989-01-31 | Relief valve for brake circuit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH083682Y2 (en) |
| KR (1) | KR0149159B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223034A (en) * | 1975-08-11 | 1977-02-21 | Mitsubishi Gas Chem Co Inc | Process for preparation of addition product of aromatic dicarboxylic a cid with alkylene oxide |
| JPS56167903A (en) * | 1980-05-24 | 1981-12-23 | Hitachi Constr Mach Co Ltd | Hydraulic circuit of brake for hydraulic motor |
-
1989
- 1989-01-31 JP JP1989011585U patent/JPH083682Y2/en not_active Expired - Lifetime
- 1989-11-24 KR KR1019890017084A patent/KR0149159B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223034A (en) * | 1975-08-11 | 1977-02-21 | Mitsubishi Gas Chem Co Inc | Process for preparation of addition product of aromatic dicarboxylic a cid with alkylene oxide |
| JPS56167903A (en) * | 1980-05-24 | 1981-12-23 | Hitachi Constr Mach Co Ltd | Hydraulic circuit of brake for hydraulic motor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR900012027A (en) | 1990-08-02 |
| KR0149159B1 (en) | 1998-10-15 |
| JPH083682Y2 (en) | 1996-01-31 |