JPH01104439U - - Google Patents
Info
- Publication number
- JPH01104439U JPH01104439U JP19957087U JP19957087U JPH01104439U JP H01104439 U JPH01104439 U JP H01104439U JP 19957087 U JP19957087 U JP 19957087U JP 19957087 U JP19957087 U JP 19957087U JP H01104439 U JPH01104439 U JP H01104439U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- opening end
- case
- pilot
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
第１図は一実施例とその使用方法を示す縦断面
図及び油圧回路図、第２図は同実施例の作用を説
明するための縦断面図である。
１…バルブケース、２…弁座、３…パイロツト
バルブ、３ａ…大径部、４…ソレノイド、４ａ…
プツシユピン、５…弁ばね、６…空間、７…タン
クポート、８…油路穴、８ａ…開口端、１０…ポ
ンプポート、１１…油圧作用ポート、１２…バラ
ンスピストン。
FIG. 1 is a longitudinal cross-sectional view and a hydraulic circuit diagram showing one embodiment and its method of use, and FIG. 2 is a longitudinal cross-sectional view for explaining the operation of the same embodiment. 1...Valve case, 2...Valve seat, 3...Pilot valve, 3a...Large diameter part, 4...Solenoid, 4a...
Push pin, 5... Valve spring, 6... Space, 7... Tank port, 8... Oil passage hole, 8a... Open end, 10... Pump port, 11... Hydraulic action port, 12... Balance piston.
Claims (1)
二次側から着座するパイロツトバルブ３に対し、
弁座２への着座方向でソレノイド４のプツシユピ
ン４ａを作用させると共に弁座２からの離間方向
に弁ばね５を作用させて設けてある電磁比例圧力
制御弁において、 パイロツトバルブ３に、弁座２から遠い部分で
バルブケース１の内面に摺接するように大径部３
ａを設けて、弁座二次側のバルブケース内の空間
６をタンクポート７に接続するための油路穴８を
パイロツトバルブ３に、該油路穴８のタンクポー
ト側の開口端８ａを上記大径部３ａの外周面に臨
ませて形成し、パイロツトバルブ３が弁座２から
最大限に離間すると上記開口端８ａがバルブケー
ス１の内面によりブロツクされるように構成した
ことを特徴とする電磁比例圧力制御弁。[Scope of Claim for Utility Model Registration] For a pilot valve 3 seated on a valve seat 2 on the inner surface of a valve case from the secondary side of the valve seat 2,
In the electromagnetic proportional pressure control valve, the push pin 4a of the solenoid 4 is applied in the direction of seating on the valve seat 2, and the valve spring 5 is applied in the direction of separation from the valve seat 2. The large diameter portion 3 is arranged so that it comes into sliding contact with the inner surface of the valve case 1 at a portion far from the
a, an oil passage hole 8 for connecting the space 6 in the valve case on the secondary side of the valve seat to the tank port 7 is provided in the pilot valve 3, and an opening end 8a of the oil passage hole 8 on the tank port side is provided. The opening end 8a is formed so as to face the outer peripheral surface of the large diameter portion 3a, and the opening end 8a is blocked by the inner surface of the valve case 1 when the pilot valve 3 is separated from the valve seat 2 to the maximum extent. Solenoid proportional pressure control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19957087U JPH0440029Y2 (en) | 1987-12-29 | 1987-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19957087U JPH0440029Y2 (en) | 1987-12-29 | 1987-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01104439U true JPH01104439U (en) | 1989-07-14 |
| JPH0440029Y2 JPH0440029Y2 (en) | 1992-09-18 |
Family
ID=31490018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19957087U Expired JPH0440029Y2 (en) | 1987-12-29 | 1987-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440029Y2 (en) |
-
1987
- 1987-12-29 JP JP19957087U patent/JPH0440029Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0440029Y2 (en) | 1992-09-18 |