GB1283950A - A reciprocable spool valve with means for preventing sticking - Google Patents
A reciprocable spool valve with means for preventing stickingInfo
- Publication number
- GB1283950A GB1283950A GB5986369A GB5986369A GB1283950A GB 1283950 A GB1283950 A GB 1283950A GB 5986369 A GB5986369 A GB 5986369A GB 5986369 A GB5986369 A GB 5986369A GB 1283950 A GB1283950 A GB 1283950A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spool valve
- grooves
- spool
- dec
- preventing sticking
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0708—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising means to avoid jamming of the slide or means to modify the flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
1283950 Valves SUMITOMO PRECISION PRODUCTS CO Ltd 8 Dec 1969 [28 Dec 1968] 59863/69 Heading F2V A reciprocable spool valve has a series of annular grooves 12 separated by lands, each having a width of less than 0À5 mm. so that there is a sufficient number of grooves per unit length to prevent the spool sticking. The grooves may have any of the cross-sectional shapes shown in Fig. 4 and may alternatively be formed in the spool bore. The valve may control the oil supply to a cylinder 14 and be actuated by an electromagnet against the action of centralizing springs.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP105468 | 1968-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1283950A true GB1283950A (en) | 1972-08-02 |
Family
ID=11490818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5986369A Expired GB1283950A (en) | 1968-12-28 | 1969-12-08 | A reciprocable spool valve with means for preventing sticking |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH493771A (en) |
GB (1) | GB1283950A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158557A (en) * | 1984-05-07 | 1985-11-13 | Smith International | Low noise valve |
GB2180627A (en) * | 1981-11-12 | 1987-04-01 | Mac Valves Inc | Direct solenoid operated valve with minimal tolerance accumulation |
USRE33053E (en) * | 1984-05-07 | 1989-09-12 | Cameron Iron Works Usa Inc. | Low noise valve |
GB2325725A (en) * | 1997-05-23 | 1998-12-02 | Smiths Industries Plc | Hydraulic valves and systems |
CN103511678A (en) * | 2013-09-26 | 2014-01-15 | 番禺珠江钢管(珠海)有限公司 | Direct-acting overflow valve and method for establishing and releasing pressure thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807454A (en) * | 1972-12-15 | 1974-04-30 | Gen Signal Corp | Low effort plunger |
-
1969
- 1969-12-08 GB GB5986369A patent/GB1283950A/en not_active Expired
- 1969-12-16 CH CH1873169A patent/CH493771A/en not_active IP Right Cessation
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2180627A (en) * | 1981-11-12 | 1987-04-01 | Mac Valves Inc | Direct solenoid operated valve with minimal tolerance accumulation |
GB2180627B (en) * | 1981-11-12 | 1989-08-23 | Mac Valves Inc | Direct solenoid operated valve with minimal tolerance accumulation |
GB2158557A (en) * | 1984-05-07 | 1985-11-13 | Smith International | Low noise valve |
USRE33053E (en) * | 1984-05-07 | 1989-09-12 | Cameron Iron Works Usa Inc. | Low noise valve |
GB2325725A (en) * | 1997-05-23 | 1998-12-02 | Smiths Industries Plc | Hydraulic valves and systems |
US5992294A (en) * | 1997-05-23 | 1999-11-30 | Smiths Industries Public Limited Company | Hydraulic valves and systems |
GB2325725B (en) * | 1997-05-23 | 2001-06-27 | Smiths Industries Plc | Hydraulic valves and systems |
CN103511678A (en) * | 2013-09-26 | 2014-01-15 | 番禺珠江钢管(珠海)有限公司 | Direct-acting overflow valve and method for establishing and releasing pressure thereof |
Also Published As
Publication number | Publication date |
---|---|
CH493771A (en) | 1970-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |