GB1228919A - - Google Patents
Info
- Publication number
- GB1228919A GB1228919A GB1228919DA GB1228919A GB 1228919 A GB1228919 A GB 1228919A GB 1228919D A GB1228919D A GB 1228919DA GB 1228919 A GB1228919 A GB 1228919A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- schroeder
- valves
- pass
- return 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2579—Flow rate responsive
- Y10T137/2587—Bypass or relief valve biased open
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2579—Flow rate responsive
- Y10T137/2602—Flapper
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Check Valves (AREA)
Abstract
1,228,919. Rotary pumps. M. SCHROEDER (trading as H. SCHROEDER & CO. ) May 20, 1968 [June 1, 1967], No.23872/68. Heading F1C. [Also in Division F2] Oscillation-free operation of a rotary pump is ensured by a non-return valve arrangement in which the non-return valve 3 has a tapered skirt 3.1 which provides an increasing throttling effect as the valve moves towards its seat 1a. Additional throttling is provided by a separate throttle valve 17. In addition, a by-pass valve 7 which is linked by a lever 9 to the valves 3, 17, opens as the valve 3 closes to divert flow through a by-pass conduit 15 from a point between the valves 3, 17.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1653778A DE1653778C3 (en) | 1967-06-01 | 1967-06-01 | Free-wheeling check valve for centrifugal pumps, especially for boiler feed pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1228919A true GB1228919A (en) | 1971-04-21 |
Family
ID=7435874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1228919D Expired GB1228919A (en) | 1967-06-01 | 1968-05-20 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3517687A (en) |
AT (1) | AT279370B (en) |
DE (1) | DE1653778C3 (en) |
FR (1) | FR1605355A (en) |
GB (1) | GB1228919A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5075432U (en) * | 1973-11-14 | 1975-07-01 | ||
US4265268A (en) * | 1980-02-01 | 1981-05-05 | Yarway Corporation | Modulating flow control valve assembly |
US5333638A (en) * | 1993-01-21 | 1994-08-02 | Keystone International Holdings Corp. | Automatic recirculation valve |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768750A (en) * | 1987-01-16 | 1988-09-06 | Fisher Controls International, Inc. | Valve joint connection |
US8215330B2 (en) * | 2007-03-30 | 2012-07-10 | Tyco Valves & Controls, LP | Adjustable recirculating valve |
FR2947608B1 (en) * | 2009-07-06 | 2011-09-02 | Rainer Klemm | ANTI-RETURN VALVE WITH IMPROVED AUTOMATIC RECIRCULATION |
CN104565453A (en) * | 2013-10-28 | 2015-04-29 | 北京航天动力研究所 | Self-controlled reflux valve with rotary valve as bypass structure |
CN105626551A (en) * | 2016-03-04 | 2016-06-01 | 中国五环工程有限公司 | Rotary valve type pump protecting device |
DE102020003756A1 (en) * | 2019-07-12 | 2021-01-14 | KSB SE & Co. KGaA | Fitting arrangement |
DE102020003753A1 (en) * | 2019-07-12 | 2021-01-14 | KSB SE & Co. KGaA | Valve |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH204955A (en) * | 1938-02-02 | 1939-05-31 | Sulzer Ag | Non-return device arranged on the pressure side of centrifugal pumps, in particular boiler feed pumps. |
FR1066887A (en) * | 1951-07-31 | 1954-06-10 | Shell Refining & Marketing Co | Improvements to liquid dispensing devices |
DE1108992B (en) * | 1958-06-06 | 1961-06-15 | Gerdts Gustav F Kg | Procedure to ensure the flow of a minimum amount |
GB893102A (en) * | 1958-12-19 | 1962-04-04 | G & J Weir Ltd | System for controlling the flow of byepass liquid from a centrifugal pump |
DE1528782A1 (en) * | 1964-08-29 | 1969-07-10 | Wilhelm Odendahl | Minimum volume control for boiler feed centrifugal pumps |
US3349714A (en) * | 1965-10-11 | 1967-10-31 | Ford Motor Co | Power steering pump |
-
1967
- 1967-06-01 DE DE1653778A patent/DE1653778C3/en not_active Expired
-
1968
- 1968-05-02 AT AT424468A patent/AT279370B/en active
- 1968-05-20 GB GB1228919D patent/GB1228919A/en not_active Expired
- 1968-05-29 US US3517687D patent/US3517687A/en not_active Expired - Lifetime
- 1968-05-30 FR FR153393A patent/FR1605355A/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5075432U (en) * | 1973-11-14 | 1975-07-01 | ||
US4265268A (en) * | 1980-02-01 | 1981-05-05 | Yarway Corporation | Modulating flow control valve assembly |
US5333638A (en) * | 1993-01-21 | 1994-08-02 | Keystone International Holdings Corp. | Automatic recirculation valve |
WO1994017463A1 (en) * | 1993-01-21 | 1994-08-04 | Keystone International Holdings Corp. | Improved automatic recirculation valve |
Also Published As
Publication number | Publication date |
---|---|
DE1653778C3 (en) | 1979-08-16 |
DE1653778B2 (en) | 1973-03-01 |
US3517687A (en) | 1970-06-30 |
DE1653778A1 (en) | 1971-09-09 |
AT279370B (en) | 1970-03-10 |
FR1605355A (en) | 1974-10-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1290247A (en) | ||
GB1228919A (en) | ||
GB1306886A (en) | Hydraulic motor control circuit | |
GB1368996A (en) | Valve systems | |
GB1150036A (en) | Hydraulic control valves for stabilizing a double-acting load | |
GB1468872A (en) | ||
GB1245477A (en) | Pressure control valve system | |
GB1157104A (en) | Hydraulic Pressure Control Circuit | |
GB1394594A (en) | Double-flow hydraulic operating system | |
GB1005387A (en) | Improvements in or relating to hydraulic pumps or motors | |
GB926279A (en) | Fluid pressure drive system | |
SE328775B (en) | ||
GB1013359A (en) | Improvements in and relating to water traps for drains | |
GB1007299A (en) | Fluid control valves | |
GB1141444A (en) | Self drinker in form of drinking tap attachable to water pipe | |
GB1115725A (en) | Hydraulic cushion for dies | |
GB1234924A (en) | A control system for a hydraulic control device | |
GB1135895A (en) | Improvements in or relating to apparatus for controlling the speed of a main piston in a hydraulic motor | |
GB1249963A (en) | Multiway valve | |
GB1220275A (en) | Adjustable fluid restrictor | |
GB1183581A (en) | A Valve for Controlling the Pressure of a Liquid as a Function of Flow Rate of the Liquid | |
GB918122A (en) | Pump assembly | |
GB1016671A (en) | Improvements in or relating to fuel injection pumps | |
GB1256881A (en) | ||
GB1188508A (en) | Improvements in or relating to Rapid Air Relief Valves |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |