DE1943693C3 - Spring loaded check valve - Google Patents
Spring loaded check valveInfo
- Publication number
- DE1943693C3 DE1943693C3 DE1943693A DE1943693A DE1943693C3 DE 1943693 C3 DE1943693 C3 DE 1943693C3 DE 1943693 A DE1943693 A DE 1943693A DE 1943693 A DE1943693 A DE 1943693A DE 1943693 C3 DE1943693 C3 DE 1943693C3
- Authority
- DE
- Germany
- Prior art keywords
- valve
- check valve
- stroke
- cylinder
- pressure medium
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
-
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7876—With external means for opposing bias
-
- 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
- Y10T137/8593—Systems
- Y10T137/86928—Sequentially progressive opening or closing of plural valves
- Y10T137/86936—Pressure equalizing or auxiliary shunt flow
- Y10T137/86944—One valve seats against other valve [e.g., concentric valves]
- Y10T137/86984—Actuator moves both valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Safety Valves (AREA)
Description
Zylinder 15, der sich in einem an das Ventilgehäuse anschließenden Kopf 16 befindet. Im Zylinderraum 15 ist ein Entsperrkolben 17 gleitend geführt.Cylinder 15, which is in an attached to the valve housing adjoining head 16 is located. An unlocking piston 17 is slidably guided in the cylinder space 15.
Ein im Kopf 16 verlaufender Kanal 18 dient als Zulaufkanal für das Druckmittel. Er mündet in einen in der Wand 15a des Zylinders 15 vorgesehenen Ringraum 19.A channel 18 running in the head 16 serves as an inlet channel for the pressure medium. It flows into an in the wall 15a of the cylinder 15 provided annular space 19.
Der Entsperrkolben 17" hat mehrere Querbohrungen 20, die in parallel zu seiner Längsachse verlaufende Bohrungen 21 eindringen. Die Bohrungen 21 münden an der dem Ventilkörper abgewandten Stirnseite 22 des Entsperrkolbens 17. Querbohrungen 23 mit kleinerem Durchmesser als dem der Querbohrungen 20 münden ebenfalls in die Bohrungen 21. Sie liegen unterhalb der Querbohrungen 20, d. h. näher der Stirnseite 22 zu.The unlocking piston 17 ″ has several transverse bores 20 which run parallel to its longitudinal axis Bores 21 penetrate. The bores 21 open on the end face 22 of the facing away from the valve body Unlocking piston 17. Cross bores 23 with a smaller diameter than that of the cross bores 20 open also in the bores 21. They are below the transverse bores 20, d. H. closer to the end face 22.
Im Betrieb strömt das Druckmittel durch Bohrungen 24 des Ventilkörpers 3 und Bohrung 25 der Hülse 2 in den Ablaufkanal 12 und weiter dem nicht dargestellten Verbraucher zu.In operation, the pressure medium flows through bores 24 of the valve body 3 and bore 25 of the sleeve 2 in the drainage channel 12 and further to the consumer, not shown.
Soll nun die Strömungsrichtung umgekehrt werden, so müssen Vor- und Hauptventil entsperrt werden,, damit das Druckmittel ungehindert vom Ab!aufkanal 12 zum Zulaufkanal 11 fließen kann. Zu diesem Zweck wird ein durch ein nicht dargestelltes Wegeventil freigegebener Druckmittelsteuerstrom über den Kanal 18 in den Ringraum 19 geleitet, dessen untere Begrenzungskante 27 die Querbohrungen 20 in der Ventilschließlage etwa zur Hälfte verdeckt Das nunmehr in die Bohrungen 21 gelangende und an der Stirnseite 22 austretende Druckmittel setzt den Entsperrkolben 17 anfänglich ■ langsam in Bewegung, bis die Querbohrungen 20 gpnz aufgesteuert sind. Dann wird der Kolben starkIf the direction of flow is to be reversed, the pilot valve and main valve must be unlocked. so that the pressure medium can flow unhindered from the outlet channel 12 to the inlet channel 11. To this end, will a pressure medium control flow released by a directional control valve, not shown, via the channel 18 into the Annular space 19 passed, the lower delimiting edge 27 of which the transverse bores 20 in the valve closed position, for example half covered The one now entering the bores 21 and exiting at the end face 22 Pressure medium sets the unlocking piston 17 initially ■ slowly in motion until the transverse bores 20 gpnz are steered up. Then the piston becomes strong
S beschleunigt, und zwar so lange, bis durch eine zweite Begrenzungkante 28 des Ringraums 19 die Querbohrungen 20 wieder zugesteuert sind. Im Verlauf dieser Bewegung, bei der der Kolben 17 noch nicht seine Endlage erreicht hat, werden die wesentlich kleineren Querbohrungen 23 aufgesteuert. Nachdem die Querbohrungen zugesteuert sind, kann das Druckmittel nur noch — durch die Querbohrungen 23 gedrosselt — in kleinen Mengen zuströmen, wodurch die Geschwindigkeit des Entsperrkolbens gedrosselt wird, so daß er weich auf das Ventilgehäuse auftreffen kann.S accelerates until the transverse bores through a second delimiting edge 28 of the annular space 19 20 are closed again. In the course of this movement, in which the piston 17 is not yet his Has reached the end position, the much smaller transverse bores 23 are opened. After the cross holes are closed, the pressure medium can only - throttled through the transverse bores 23 - in flow in small amounts, whereby the speed of the unlocking piston is throttled so that it can hit the valve housing softly.
Gefährliche Spitzendrücke nach Zusteuern der Querbohrungen 20 wie auch am Ende des Weges des Entsperrkolbens 17 werden durch diese Maßnahmen vermieden.Dangerous peak pressures after controlling the cross bores 20 as well as at the end of the path of the Unlocking piston 17 can be avoided by these measures.
Nach dem Entlasten des Zylinders 15, d. h. nach dem Abschalten des Druckmittelsteu·.:. Stroms, schiebt die Feder 9 die Ventiikörper 3,7 auf ihre ^iUe-, gleichzeitig werden der Stößel 14 und der Entsperrkolben 17 in ihre Ausgangslage zurückgeschoben. Der aus dem ZylinderAfter unloading the cylinder 15, i. H. after switching off the pressure medium control ·.:. Stroms, she pushes Spring 9 the valve bodies 3.7 on their ^ iUe-, at the same time the plunger 14 and the unlocking piston 17 are pushed back into their starting position. The one from the cylinder
15 verdrängte Steuerstrom fließt durch den Zulaufkanal 18 eisern nicht weiter dargestellten Behälter drucklos15 displaced control current flows through the inlet channel 18 iron container, not shown further, without pressure
zu.to.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1943693A DE1943693C3 (en) | 1969-08-28 | 1969-08-28 | Spring loaded check valve |
CH777170A CH501175A (en) | 1969-08-28 | 1970-05-26 | Spring-loaded check valve |
GB3257470A GB1275838A (en) | 1969-08-28 | 1970-07-06 | Spring loaded non-return valve |
AT735970A AT301974B (en) | 1969-08-28 | 1970-08-12 | Spring-loaded check valve |
US3631887D US3631887A (en) | 1969-08-28 | 1970-08-14 | Fluid-flow-regulating apparatus |
FR7031113A FR2062158A5 (en) | 1969-08-28 | 1970-08-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1943693A DE1943693C3 (en) | 1969-08-28 | 1969-08-28 | Spring loaded check valve |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1943693A1 DE1943693A1 (en) | 1971-03-11 |
DE1943693B2 DE1943693B2 (en) | 1977-03-10 |
DE1943693C3 true DE1943693C3 (en) | 1981-07-16 |
Family
ID=5743981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1943693A Expired DE1943693C3 (en) | 1969-08-28 | 1969-08-28 | Spring loaded check valve |
Country Status (6)
Country | Link |
---|---|
US (1) | US3631887A (en) |
AT (1) | AT301974B (en) |
CH (1) | CH501175A (en) |
DE (1) | DE1943693C3 (en) |
FR (1) | FR2062158A5 (en) |
GB (1) | GB1275838A (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2231910A1 (en) * | 1973-06-04 | 1974-12-27 | Griffet Ets M | Control valve for hydraulic jack of crane jib - has piston operated by low pressure oil to control main oil flow |
DE2410077C3 (en) * | 1974-03-02 | 1981-06-04 | Schloemann-Siemag AG, 4000 Düsseldorf | Device for setting the flow cross-section in hydraulic valves |
US3981479A (en) * | 1974-06-14 | 1976-09-21 | Snap-Tite, Inc. | Check valve |
US4009756A (en) * | 1975-09-24 | 1977-03-01 | Trw, Incorporated | Method and apparatus for flooding of oil-bearing formations by downward inter-zone pumping |
DE2728004C2 (en) * | 1977-06-22 | 1981-10-08 | Danfoss A/S, 6430 Nordborg | Hydraulic control device for a servomotor, in particular for vehicle steering |
US4391293A (en) * | 1980-12-18 | 1983-07-05 | General Signal Corp. | Packing for equalizing reservoir cut-out valve |
US4391296A (en) * | 1981-05-07 | 1983-07-05 | Abbott John D | By-pass pilot operated hydraulic check valve |
US4484726A (en) * | 1982-08-02 | 1984-11-27 | Dresser Industries, Inc. | Pulsation limiter for manually actuated hydraulic valve |
DE3247420A1 (en) * | 1982-12-22 | 1984-07-05 | Mannesmann Rexroth GmbH, 8770 Lohr | HYDRAULICALLY UNLOCKABLE CHECK VALVE |
USRE34218E (en) | 1983-09-02 | 1993-04-13 | Easily-cleanable filters | |
US5255705A (en) * | 1986-01-30 | 1993-10-26 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic pressure control system |
US4978450A (en) | 1986-02-11 | 1990-12-18 | Mordeki Drori | Filtering element |
US5030347A (en) * | 1987-07-30 | 1991-07-09 | Mordeki Drori | Multiple filter elements with movable flushing assembly |
US5013461A (en) | 1987-09-18 | 1991-05-07 | Mordeki Drori | Regeneration method of filter device having filter aid material and piston apparatus |
US5015379A (en) | 1988-03-16 | 1991-05-14 | Mordeki Drori | Coiled filter strip with upstream and downstream butt ends |
IL88940A0 (en) | 1989-01-12 | 1989-08-15 | Drori Mordeki | Filter apparatus |
US4947672A (en) * | 1989-04-03 | 1990-08-14 | Burndy Corporation | Hydraulic compression tool having an improved relief and release valve |
US4967791A (en) * | 1989-04-26 | 1990-11-06 | The Boeing Company | Pressure activated check valve |
US5022427A (en) * | 1990-03-02 | 1991-06-11 | Otis Engineering Corporation | Annular safety system for gas lift production |
US5255712A (en) * | 1992-10-28 | 1993-10-26 | Foster Raymond K | Check valve pull assembly |
DE19813909B4 (en) * | 1998-03-28 | 2007-02-15 | Dbt Gmbh | Hydraulically actuated non-return valve for the removal hydraulics in mining underground operations |
DE10042716A1 (en) * | 2000-08-31 | 2002-03-14 | Mannesmann Rexroth Ag | Unlockable check valve for very high system pressures |
CZ2006234A3 (en) * | 2006-04-06 | 2007-10-17 | Zaalex S. R. O. | Hydraulically controlled check valve |
DE102006045448A1 (en) * | 2006-09-19 | 2008-03-27 | Lechler Gmbh | Check valve for injection device i.e. field syringe, has valve body designed and arranged in housing such that contact surface aligned in its position closing for free cross-section is null for counter pressure in counter pressure area |
TWM315185U (en) * | 2006-12-15 | 2007-07-11 | Wei-Te Hsu | Vehicular hydraulic tank reverse safety device |
ITMI20112217A1 (en) * | 2011-12-05 | 2013-06-06 | Clippers S R L | ANTI-THEFT DEVICE FOR VEHICLES |
US9714556B2 (en) * | 2013-11-08 | 2017-07-25 | Baker Hughes Incorporated | Shear seal check valve for use in wellbore fluid |
RU2689956C1 (en) * | 2018-03-27 | 2019-05-29 | федеральное государственное автономное образовательное учреждение высшего образования "Северо-Кавказский федеральный университет" | Automatic throttle |
CN108644168A (en) * | 2018-05-14 | 2018-10-12 | 江苏理工学院 | Inside let out balanced type hydraulic control one-way valve |
NO345243B1 (en) * | 2019-07-03 | 2020-11-16 | Petroleum Technology Co As | A valve arrangement |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US885459A (en) * | 1907-05-22 | 1908-04-21 | William B Engler | Valve for gas-engines. |
CH201066A (en) * | 1937-10-26 | 1938-11-15 | Escher Wyss Maschf Ag | Hydraulic servo motor for actuating rotating closing elements. |
US2810370A (en) * | 1954-01-18 | 1957-10-22 | Pathon Mfg Company | Combined power cylinder and valve construction |
DE1913154U (en) * | 1964-08-31 | 1965-04-01 | Bosch Gmbh Robert | LOCKING BLOCK. |
-
1969
- 1969-08-28 DE DE1943693A patent/DE1943693C3/en not_active Expired
-
1970
- 1970-05-26 CH CH777170A patent/CH501175A/en not_active IP Right Cessation
- 1970-07-06 GB GB3257470A patent/GB1275838A/en not_active Expired
- 1970-08-12 AT AT735970A patent/AT301974B/en not_active IP Right Cessation
- 1970-08-14 US US3631887D patent/US3631887A/en not_active Expired - Lifetime
- 1970-08-25 FR FR7031113A patent/FR2062158A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3631887A (en) | 1972-01-04 |
FR2062158A5 (en) | 1971-06-25 |
DE1943693A1 (en) | 1971-03-11 |
CH501175A (en) | 1970-12-31 |
GB1275838A (en) | 1972-05-24 |
DE1943693B2 (en) | 1977-03-10 |
AT301974B (en) | 1972-09-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1943693C3 (en) | Spring loaded check valve | |
DE69524725T2 (en) | pneumatic cylinder | |
DE4328571C1 (en) | Stand for holding a wing in various opening positions relative to its frame | |
DE102005045267B3 (en) | Damper with adjustable damping force for damping vibrations has bypass channel hydraulically parallel to flow connection | |
EP0565982A1 (en) | Valve arrangement | |
DE3855394T2 (en) | Valve control device for internal combustion engines | |
DE3808962C2 (en) | ||
DE10123914A1 (en) | Fuel injector system for internal combustion engine has pressure converter, and includes valve with sliding plug which connects high pressure- and rear chambers with top chamber | |
EP0902194B1 (en) | Load-holding valve | |
EP3751153B1 (en) | Discharge pressure compensating valve and lifting-lowering device having a pressure compensating valve of this type | |
DD129984B1 (en) | BRAKE VALVE HIGH CONTROL UNIT | |
DE1475898B1 (en) | Pilot operated pressure reducing valve | |
DE1751703B2 (en) | CONTROL DEVICE IN THE WORKING PISTON OF AN COMBUSTION MACHINE FOR CHANGING THE COMPRESSION | |
DE2254263A1 (en) | SAFETY VALVE | |
DE2929232C2 (en) | ||
DE2716694C2 (en) | ||
DE1045755B (en) | Shut-off and control valve actuated by the pressure medium flowing through and control by an auxiliary slide | |
DE1813167A1 (en) | Pressure relief valve | |
DE1941676C3 (en) | Flow regulator for hydraulic systems | |
DE29613700U1 (en) | Pressure ratio valve | |
DE1182921B (en) | Pilot operated safety valve | |
DE4402456C2 (en) | Start of funding adjustment facility | |
DE3540061A1 (en) | Multi-way valve with pressure balance | |
CH364671A (en) | Pilot operated safety valve | |
EP1063431B1 (en) | Hydraulic loadholding valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BF | Willingness to grant licences | ||
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |