JPH01116814U - - Google Patents
Info
- Publication number
- JPH01116814U JPH01116814U JP1055588U JP1055588U JPH01116814U JP H01116814 U JPH01116814 U JP H01116814U JP 1055588 U JP1055588 U JP 1055588U JP 1055588 U JP1055588 U JP 1055588U JP H01116814 U JPH01116814 U JP H01116814U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- pilot
- supply means
- control
- 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
- 239000012530 fluid Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
- Control Of Fluid Pressure (AREA)
Description
第１図はこの考案の一実施例を示す概略断面図
、第２図は第１図に示す圧力制御弁が適用された
車両用の能動サスペンシヨンの概略を示す構成図
、第３図は圧力制御弁の励磁電流Ｉｓ対制御圧Ｐ
ｃの静特性を示すグラフである。
図中、１８は油圧源（流体圧源）、２２は圧力
制御弁、２２Ｂは比例ソレノイド、２４は油圧シ
リンダ（アクチユエータ）、４２は弁ハウジング
、４６は隔壁、４８はポペツト、５０は固定絞り
、５２はメインスプール、５２ｄはフイードバツ
ク通路、５４ｓは供給ポート、５４ｒは戻りポー
ト、５４ｃは出力ポート、ＰＴはパイロツト戻り
通路、Ｐｒは絞り部、Ｐｒ′はオリフイス絞りで
ある。
Fig. 1 is a schematic sectional view showing an embodiment of this invention, Fig. 2 is a block diagram schematically showing an active suspension for a vehicle to which the pressure control valve shown in Fig. 1 is applied, and Fig. 3 is a pressure control valve. Control valve excitation current I s vs. control pressure P
It is a graph showing the static characteristics of c . In the figure, 18 is a hydraulic source (fluid pressure source), 22 is a pressure control valve, 22B is a proportional solenoid, 24 is a hydraulic cylinder (actuator), 42 is a valve housing, 46 is a partition, 48 is a poppet, 50 is a fixed throttle, 52 is a main spool, 52d is a feedback passage, 54s is a supply port, 54r is a return port, 54c is an output port, PT is a pilot return passage, Pr is a throttle portion, and Pr' is an orifice throttle.
Claims (1)
アクチユエータ側に接続された出力ポートを有す
る３方スプール弁と、この３方スプール弁の一方
のスプール端部側にパイロツト圧を供給するパイ
ロツト圧供給手段と、前記３方スプール弁の他方
のスプール端部側に前記出力ポートから出力され
る制御圧をフイードバツク供給する制御圧フイー
ドバツク供給手段とを備え、前記パイロツト圧に
応じて前記制御圧を制御するようにした圧力制御
弁において、 前記パイロツト圧供給手段は、パイロツト圧供
給後の作動流体を前記戻りポートに還流させるパ
イロツト戻り通路を有し、 このパイロツト戻り通路に、薄刃状のオリフイ
ス絞りを複数段設けたことを特徴とする圧力制御
弁。[Claims for Utility Model Registration] A three-way spool valve having supply and return ports connected to the fluid pressure source side and an output port connected to the actuator side, and one spool end side of the three-way spool valve. A pilot pressure supply means for supplying pilot pressure, and a control pressure feedback supply means for feeding back the control pressure output from the output port to the other spool end side of the three-way spool valve, In the pressure control valve that controls the control pressure accordingly, the pilot pressure supply means has a pilot return passage for returning the working fluid after supplying the pilot pressure to the return port, and the pilot return passage includes: A pressure control valve characterized by having multiple stages of thin-blade orifice orifices.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988010555U JPH0615289Y2 (en) | 1988-01-29 | 1988-01-29 | Pressure control valve |
| US07/302,252 US5042832A (en) | 1988-01-29 | 1989-01-27 | Proportioning valve assembly and actively controlled suspension system utilizing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988010555U JPH0615289Y2 (en) | 1988-01-29 | 1988-01-29 | Pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01116814U true JPH01116814U (en) | 1989-08-07 |
| JPH0615289Y2 JPH0615289Y2 (en) | 1994-04-20 |
Family
ID=31218321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988010555U Expired - Lifetime JPH0615289Y2 (en) | 1988-01-29 | 1988-01-29 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615289Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012042745A1 (en) * | 2010-09-30 | 2012-04-05 | 株式会社テージーケー | Control valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS639615U (en) * | 1986-07-04 | 1988-01-22 |
-
1988
- 1988-01-29 JP JP1988010555U patent/JPH0615289Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS639615U (en) * | 1986-07-04 | 1988-01-22 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012042745A1 (en) * | 2010-09-30 | 2012-04-05 | 株式会社テージーケー | Control valve |
| JP2012077787A (en) * | 2010-09-30 | 2012-04-19 | Tgk Co Ltd | Control valve |
| CN103124873A (en) * | 2010-09-30 | 2013-05-29 | 株式会社Tgk | Control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0615289Y2 (en) | 1994-04-20 |