JPH02149886U - - Google Patents
Info
- Publication number
- JPH02149886U JPH02149886U JP6017889U JP6017889U JPH02149886U JP H02149886 U JPH02149886 U JP H02149886U JP 6017889 U JP6017889 U JP 6017889U JP 6017889 U JP6017889 U JP 6017889U JP H02149886 U JPH02149886 U JP H02149886U
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- drain flow
- spool chamber
- control valve
- curvature
- 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 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
第１図は本考案の流量制御弁を施用した液体ポ
ンプの断面図、第２図は本考案の実施例を示す流
量制御弁の断面図、第３図は第２図の−線に
沿う断面図、第４図はリリーフ弁の拡大断面図、
第５図は従来の流量制御弁の要部断面図である。
２……ポンプ室、１３……吐出側通路、１４…
…流量制御弁、１５……スプール室、１６……ス
プール室、２２……ドレン流路。
Fig. 1 is a cross-sectional view of a liquid pump to which the flow control valve of the present invention is applied, Fig. 2 is a cross-sectional view of a flow control valve showing an embodiment of the present invention, and Fig. 3 is a cross-section taken along the - line in Fig. 2. Figure 4 is an enlarged sectional view of the relief valve.
FIG. 5 is a sectional view of a main part of a conventional flow control valve. 2...Pump chamber, 13...Discharge side passage, 14...
...Flow rate control valve, 15...Spool chamber, 16...Spool chamber, 22...Drain channel.
Claims (1)
ン流路を開口形成し、このドレン流路の開口面積
をスプール室内に収容したスプールによつて調整
して、吐出余剰流体をドレン流路に流出させるよ
うにした流量制御弁において、前記ドレン流路の
少なくともスプール室側の開口部近傍の断面形状
を、初期開口部分における内壁の曲率半径が、こ
れと対象位置における内壁の曲率半径よりも小さ
くなるように形成したことを特徴とする流量制御
弁。 A drain flow path is formed in the spool chamber where the pump discharge side flow path opens, and the opening area of this drain flow path is adjusted by a spool housed in the spool chamber, so that excess discharge fluid flows out into the drain flow path. In the flow control valve, the cross-sectional shape of the drain flow path at least near the opening on the spool chamber side is such that the radius of curvature of the inner wall at the initial opening portion is smaller than the radius of curvature of the inner wall at the target position. A flow control valve characterized in that it is formed as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989060178U JPH0729268Y2 (en) | 1989-05-24 | 1989-05-24 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989060178U JPH0729268Y2 (en) | 1989-05-24 | 1989-05-24 | Flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02149886U true JPH02149886U (en) | 1990-12-21 |
| JPH0729268Y2 JPH0729268Y2 (en) | 1995-07-05 |
Family
ID=31587316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989060178U Expired - Lifetime JPH0729268Y2 (en) | 1989-05-24 | 1989-05-24 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729268Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495369U (en) * | 1991-01-11 | 1992-08-18 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02112987U (en) * | 1989-02-22 | 1990-09-10 |
-
1989
- 1989-05-24 JP JP1989060178U patent/JPH0729268Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02112987U (en) * | 1989-02-22 | 1990-09-10 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495369U (en) * | 1991-01-11 | 1992-08-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729268Y2 (en) | 1995-07-05 |