JPS6442972U - - Google Patents
Info
- Publication number
- JPS6442972U JPS6442972U JP13863987U JP13863987U JPS6442972U JP S6442972 U JPS6442972 U JP S6442972U JP 13863987 U JP13863987 U JP 13863987U JP 13863987 U JP13863987 U JP 13863987U JP S6442972 U JPS6442972 U JP S6442972U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- inflow
- pilot
- pilot chamber
- orifice
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 description 1
Description
図面第１〜５図は第１〜５実施例の要部を断面
にした正面図、第６，７図は従来の装置を示すも
ので、第６図はスプールを中立位置に保持した状
態の要部断面図、第７図はこの従来の装置のスプ
ールを移動した状態の要部断面図である。
１…弁本体、２…スプール、３，４…パイロツ
ト室、７，８…流出入ポート、９，１０及び１１
，１２…オリフイスを構成する凹部及び環状溝、
１５，１６…連通路、２３，２４，２８，３３，
３４…絞り、２５，２６，３１，３２…ノツチ。
Figures 1 to 5 are front views in section of the main parts of the first to fifth embodiments, Figures 6 and 7 show conventional devices, and Figure 6 shows a state in which the spool is held in a neutral position. FIG. 7 is a cross-sectional view of the main part of this conventional device with the spool moved. 1... Valve body, 2... Spool, 3, 4... Pilot chamber, 7, 8... Outflow/inflow port, 9, 10 and 11
, 12...a recess and an annular groove constituting an orifice,
15, 16...Communication path, 23, 24, 28, 33,
34...Aperture, 25, 26, 31, 32...Notch.
Claims (1)
ートを形成したパイロツト室に臨ませ、これら両
パイロツト室はオリフイスを形成した連通路を介
して連通し、一方のパイロツト室の流出入ポート
から供給された圧油は、上記連通路及び他方のパ
イロツト室の流出入ポートを経由して戻されると
ともに、上記オリフイスの上流側に発生する圧力
でスプールを切り換え、このスプールの切り換え
位置に応じてステアリング機構を駆動する車両用
油圧装置において、上記スプールの両端部分に絞
り通路を形成し、スプールが所定のストロークに
達したとき、上記絞り通路を介してだけ両パイロ
ツト室が連通する構成にした車両用油圧装置。 Both ends of the spool built into the valve body face a pilot chamber in which an inflow and outflow port is formed, and these two pilot chambers communicate through a communication path in which an orifice is formed, and water is supplied from the inflow and outflow ports of one pilot chamber. The pressurized oil is returned via the communication passage and the inflow/outflow port of the other pilot chamber, and the spool is switched by the pressure generated upstream of the orifice, and the steering mechanism is operated according to the switching position of the spool. A hydraulic system for a vehicle to be driven, wherein throttle passages are formed at both ends of the spool, and when the spool reaches a predetermined stroke, both pilot chambers communicate only through the throttle passage. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987138639U JPH0645421Y2 (en) | 1987-09-10 | 1987-09-10 | Vehicle hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987138639U JPH0645421Y2 (en) | 1987-09-10 | 1987-09-10 | Vehicle hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6442972U true JPS6442972U (en) | 1989-03-15 |
| JPH0645421Y2 JPH0645421Y2 (en) | 1994-11-24 |
Family
ID=31401159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987138639U Expired - Lifetime JPH0645421Y2 (en) | 1987-09-10 | 1987-09-10 | Vehicle hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645421Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6159164U (en) * | 1984-08-23 | 1986-04-21 |
-
1987
- 1987-09-10 JP JP1987138639U patent/JPH0645421Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6159164U (en) * | 1984-08-23 | 1986-04-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645421Y2 (en) | 1994-11-24 |