JPH03108888U - - Google Patents
Info
- Publication number
- JPH03108888U JPH03108888U JP1612090U JP1612090U JPH03108888U JP H03108888 U JPH03108888 U JP H03108888U JP 1612090 U JP1612090 U JP 1612090U JP 1612090 U JP1612090 U JP 1612090U JP H03108888 U JPH03108888 U JP H03108888U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- guide
- pressure receiving
- small diameter
- free piston
- 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
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の実施例を示す断面図、第２図
は可変容量ポンプの容量制御装置、第３図は従来
例の断面図である。
４０は弁本体、４４は入口ポート、４５は出口
ポート、４６はスプール、４７はバネ、４９はガ
イド、５０は小径杆、５１は第１受圧部、５２は
スリーブ、５４はフリーピストン、５５，５６は
第２、第３受圧部。
FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a capacity control device for a variable displacement pump, and FIG. 3 is a sectional view of a conventional example. 40 is a valve body, 44 is an inlet port, 45 is an outlet port, 46 is a spool, 47 is a spring, 49 is a guide, 50 is a small diameter rod, 51 is a first pressure receiving part, 52 is a sleeve, 54 is a free piston, 55, 56 is a second and third pressure receiving part.
Claims (1)
ポート４５を連通・遮断し、かつ一端部に小径杆
５０を有するスプール４６及び、ガイド４９並び
に、受圧部を有するフリーピストン５４が嵌挿さ
れて受圧部を有するスリーブ５２を順次設け、前
記スプール４６をバネ４７で連通方向に付勢し、
かつ小径杆５０をガイド４９を貫通してフリーピ
ストン５４に当接し、前記スプール４６の段差部
４６ａとガイド４９前面との間に受圧部を構成し
たことを特徴とする減圧弁式制御信号圧発生弁。 In the axial direction of the valve body 40, a spool 46 which connects and blocks the inlet port 44 and the outlet port 45 and has a small diameter rod 50 at one end, a guide 49, and a free piston 54 having a pressure receiving part are fitted. A sleeve 52 having a pressure receiving portion is sequentially provided, and the spool 46 is urged in the communication direction by a spring 47,
A pressure reducing valve type control signal pressure generator characterized in that a small diameter rod 50 passes through a guide 49 and abuts against a free piston 54, and a pressure receiving part is formed between a stepped part 46a of the spool 46 and the front surface of the guide 49. valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1612090U JPH03108888U (en) | 1990-02-22 | 1990-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1612090U JPH03108888U (en) | 1990-02-22 | 1990-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03108888U true JPH03108888U (en) | 1991-11-08 |
Family
ID=31519405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1612090U Pending JPH03108888U (en) | 1990-02-22 | 1990-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03108888U (en) |
-
1990
- 1990-02-22 JP JP1612090U patent/JPH03108888U/ja active Pending