JPH0227004U - - Google Patents
Info
- Publication number
- JPH0227004U JPH0227004U JP10560588U JP10560588U JPH0227004U JP H0227004 U JPH0227004 U JP H0227004U JP 10560588 U JP10560588 U JP 10560588U JP 10560588 U JP10560588 U JP 10560588U JP H0227004 U JPH0227004 U JP H0227004U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- flow rate
- pressure compensation
- pressure
- spool 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.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第1図はこの考案の第1実施例を示す断面図、
第2図はこの考案の第2実施例を示す断面図、第
3図は第2実施例の変形例の要部のみを示す回路
図、第4図はこの考案の第3実施例を示す断面図
、第5図はこの考案の第4実施例を示す断面図、
第6図は従来の圧力補償付き流量調整弁を例示す
る断面図である。
10,30…方向流量調整弁、11,31,4
1…主スプール弁、12,32,42…弁孔、1
3,14,33,34,43…油路、20,50
,70…圧力補償弁、21,51…副スプール弁
、23,53…スプリング室、26,28,56
,58…油路、27a,27b,57a,57b
…油室、40,60…流量調整弁。
FIG. 1 is a sectional view showing the first embodiment of this invention;
Fig. 2 is a sectional view showing a second embodiment of this invention, Fig. 3 is a circuit diagram showing only the main parts of a modification of the second embodiment, and Fig. 4 is a sectional view showing a third embodiment of this invention. 5 is a sectional view showing a fourth embodiment of this invention,
FIG. 6 is a cross-sectional view illustrating a conventional pressure-compensated flow rate regulating valve. 10, 30...Directional flow rate adjustment valve, 11, 31, 4
1...Main spool valve, 12, 32, 42...Valve hole, 1
3, 14, 33, 34, 43...oil passage, 20, 50
, 70... Pressure compensation valve, 21, 51... Sub-spool valve, 23, 53... Spring chamber, 26, 28, 56
, 58... Oil path, 27a, 27b, 57a, 57b
...Oil chamber, 40, 60...Flow rate adjustment valve.
Claims (1)
調整弁と、副スプール弁を備え前記主スプール弁
前後の差圧を一定に制御する圧力補償弁とをシリ
ーズに設けた圧力補償付き流量調整弁において、 前記流量調整弁の戻りポートを前記圧力補償弁
のスプリング室に導く油路と、負荷ポート及び供
給圧力ポートを前記スプリング室と反対側の油室
にそれぞれ導く油路とを設け、前記主スプール弁
が中立位置にある状態で前記油室に供給圧力を導
入し得るようにしたことを特徴とする圧力補償付
き流量調整弁。[Scope of Claim for Utility Model Registration] A series includes a flow rate regulating valve equipped with a main spool valve that opens and closes the main line, and a pressure compensation valve equipped with a sub-spool valve that controls the differential pressure before and after the main spool valve to a constant level. In the flow rate adjustment valve with pressure compensation, an oil passage leads a return port of the flow rate adjustment valve to a spring chamber of the pressure compensation valve, and an oil passage leads a load port and a supply pressure port to an oil chamber on the opposite side of the spring chamber, respectively. 1. A flow rate regulating valve with pressure compensation, characterized in that a flow regulating valve with pressure compensation is provided with a passageway so that supply pressure can be introduced into the oil chamber with the main spool valve in a neutral position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10560588U JPH0227004U (en) | 1988-08-10 | 1988-08-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10560588U JPH0227004U (en) | 1988-08-10 | 1988-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0227004U true JPH0227004U (en) | 1990-02-22 |
Family
ID=31338370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10560588U Pending JPH0227004U (en) | 1988-08-10 | 1988-08-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0227004U (en) |
-
1988
- 1988-08-10 JP JP10560588U patent/JPH0227004U/ja active Pending
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