EP0203986A1 - Regulateur de debit a deux voies - Google Patents
Regulateur de debit a deux voiesInfo
- Publication number
- EP0203986A1 EP0203986A1 EP86900289A EP86900289A EP0203986A1 EP 0203986 A1 EP0203986 A1 EP 0203986A1 EP 86900289 A EP86900289 A EP 86900289A EP 86900289 A EP86900289 A EP 86900289A EP 0203986 A1 EP0203986 A1 EP 0203986A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current sensor
- control valve
- compensator
- sensor
- flow
- 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.)
- Withdrawn
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/005—Control of flow characterised by the use of auxiliary non-electric power combined with the use of electric means
-
- 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
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7759—Responsive to change in rate of fluid flow
-
- 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
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7761—Electrically actuated valve
Definitions
- the invention relates to a two-way flow control valve with a hydraulic compensator which can be displaced axially in a cylindrical housing for regulating the flow between an inlet opening and one or more radial outlet openings provided in the housing wall, a control valve for controlling the compensator position , a current sensor for detecting the flow rate, a displacement sensor for detecting the position of the current sensor and for
- valves are generally known and are used to detect and control the flow of a quantity of liquid in a line.
- the liquid is mostly oil, for example in hydraulic control devices, but the application is not limited to oil.
- the present invention has for its object to provide a novel valve of the type mentioned above, with a more compact construction than the conventional valves and which allows much faster switching times.
- the two-way flow control valve shown in the figure is provided in the knee of a hydraulic line 2 and is intended to determine the flow in the direction of the arrow to control.
- the two-way flow control valve is mounted with its housing 4 in such a way that its piston sleeve 6 sits coaxially in the inlet section 2a and vertically in the outlet section 2b.
- the base surface of the cylindrical piston sleeve 6 is designed as an inlet opening 8, while one or more radial outlet openings 10 are provided in the wall of the piston sleeve 6.
- the flow from inlet 8 in the direction of line section 2b is regulated by a hydraulic cylindrical compensator 12 which is arranged in the piston sleeve 6 and which is axially displaceable between a closed position (see figure and a more or less open position).
- the upper, narrower part of the compensator 12 forms with the inner wall of the piston sleeve 6 a cylindrical annular space 14 in which a helical spring 16 is arranged around the compensator 12. This spring is between the upper base surface of the piston sleeve 6 and a shoulder of the compensator
- the oil-filled annular space 14 is connected to a control valve 18 which controls the oil pressure in the annular space 14. The position of the compensator 12 and therefore the flow through the opening (s)
- a current sensor 20 designed as an axially displaceable piston is mounted coaxially in the interior of the compensator 12.
- the lower edge of the sensor 20 sits on the inner surface 22 of an insert 24 converging towards the opening 8 in the piston sleeve 6.
- the sensor 20 When the sensor 20 is lifted, it forms from this inner surface the changing annular gap between the sensor 20 and the conical inner surface is the measuring point for detecting the flow.
- the opposite end of the current sensor 20 is exposed to the action of a helical spring 26 which is supported on the one hand on the housing 4 and on the other hand on the current sensor 20 and presses it towards the closed position.
- the current sensor 20 is hydrostatically completely balanced by means of a longitudinal bore 28 and a plurality of transverse bores 30.
- the vertical position of the current sensor 20 is preferably determined electronically by a displacement sensor 32 known per se.
- This displacement sensor 32 which therefore detects the actual value of the flow in the direction of the arrow, is connected to the control valve 18 via a control unit 34 which determines the setpoint.
- the oil pressure in the annular chamber 14 is increased via the control valve 18 in order to shift the compensator 12 in the direction of a reduction in the outlet openings 10.
- the position of the current sensor 20 adapts to the reduction in the flow under the action of the spring 26. This process continues until the actual value of the flow is equal to the setpoint. If the flow is too small, which is determined by the “sensor” position being too “low”, then the oil pressure in the annular space 14 is reduced via the control valve 18, which has the consequence that the compensator 12 is under the effect of the pressure in the line section 2a moved upwards and the outlet openings 10 enlarged.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Flow Control (AREA)
- Safety Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Un régulateur de débit à deux voies avec un compensateur (120) hydraulique axialement mobile dans un boîtier cylindrique sert à régler l'écoulement entre un orifice d'admission et un ou plusieurs orifices d'évacuation (10) radialement disposés dans la paroi du boîtier. Une soupape régulatrice (18) commande la position du compensateur, un senseur de débit (20) détecte le débit de passage et un capteur de déplacement (32) détecte la position du senseur et commande la soupape régulatrice (18) en fonction de la position du senseur. On obtient une construction compacte en donnant au senseur (20) la forme d'un piston axialement mobile et coaxialement agencé dans le compensateur (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU85707A LU85707A1 (de) | 1984-12-21 | 1984-12-21 | Zweiwege-stromregelventil |
LU85707 | 1984-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0203986A1 true EP0203986A1 (fr) | 1986-12-10 |
Family
ID=19730380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86900289A Withdrawn EP0203986A1 (fr) | 1984-12-21 | 1985-12-19 | Regulateur de debit a deux voies |
Country Status (7)
Country | Link |
---|---|
US (1) | US4724864A (fr) |
EP (1) | EP0203986A1 (fr) |
JP (1) | JPS62501657A (fr) |
CA (1) | CA1280335C (fr) |
FI (1) | FI89637C (fr) |
LU (1) | LU85707A1 (fr) |
WO (1) | WO1986003855A1 (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054650A (en) * | 1986-10-30 | 1991-10-08 | Nordson Corporation | Method of compensating for changes in the flow characteristics of a dispensed fluid to maintain the volume of dispensed fluid at a setpoint |
US4988015A (en) * | 1986-10-30 | 1991-01-29 | Nordson Corporation | Method for dispensing fluid materials |
US4922852A (en) * | 1986-10-30 | 1990-05-08 | Nordson Corporation | Apparatus for dispensing fluid materials |
US4842162A (en) * | 1987-03-27 | 1989-06-27 | Nordson Corporation | Apparatus and method for dispensing fluid materials using position-dependent velocity feedback |
US4813447A (en) * | 1987-05-14 | 1989-03-21 | Hitachi Construction Machinery Co., Ltd. | Flow control valve apparatus |
DE3876201D1 (de) * | 1987-09-28 | 1993-01-07 | Landis & Gyr Betriebs Ag | Stellglied zur beeinflussung der durchflussmenge eines gasfoermigen oder fluessigen mediums. |
LU87831A1 (de) * | 1990-10-31 | 1991-02-18 | Hydrolux Sarl | Einstellbares proportional-drosselventil mit rueckfuehrung |
US6035878A (en) * | 1997-09-22 | 2000-03-14 | Fisher Controls International, Inc. | Diagnostic device and method for pressure regulator |
JP4212187B2 (ja) * | 1999-06-25 | 2009-01-21 | アドバンスド エナジー ジャパン株式会社 | 排気装置の圧力制御システム |
US6619139B2 (en) * | 2001-02-16 | 2003-09-16 | Enginuity, Llc | Gas flow sensor and high pressure gaseous fuel injection system |
US6725876B2 (en) * | 2001-10-15 | 2004-04-27 | Woodward Governor Company | Control valve with integrated electro-hydraulic actuator |
US7080656B2 (en) * | 2003-09-11 | 2006-07-25 | Fisher Controls International Llc. | Variable vent diffuser |
US7921867B2 (en) | 2006-09-06 | 2011-04-12 | Olmsted Products Co. | Elbow plug external sleeve valve |
US20110114202A1 (en) * | 2009-11-13 | 2011-05-19 | John Goseco | Water Flow Monitor |
US9297467B1 (en) | 2014-01-23 | 2016-03-29 | John O. Goseco | Fluid leak detector apparatus |
NL2020053B1 (nl) * | 2017-12-11 | 2019-06-19 | N V Nederlandsche Apparatenfabriek Nedap | Melkmeter |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2388672A (en) * | 1943-08-13 | 1945-11-13 | Fischer & Porter Co | Flow measuring device |
US3182500A (en) * | 1961-03-06 | 1965-05-11 | Yokogawa Electric Corp | Rotameter transmitter |
DE2722239B2 (de) * | 1977-05-17 | 1980-12-18 | G.L. Rexroth Gmbh, 8770 Lohr | Durchflußmeßgerät |
DE3015724A1 (de) * | 1977-05-17 | 1981-10-29 | G.L. Rexroth Gmbh, 8770 Lohr | Durchflussregelgeraet |
DE3040521A1 (de) * | 1980-10-28 | 1982-05-27 | Robert Bosch Gmbh, 7000 Stuttgart | Vorgesteuerte vorrichtung zur lastunabbhaengigen regelung wenigstens eines volumenstromes proportional zu einem eingangssignal |
ZA828528B (en) * | 1981-12-09 | 1983-09-28 | Sperry Corp | Flow sensor with extended low flow range |
-
1984
- 1984-12-21 LU LU85707A patent/LU85707A1/de unknown
-
1985
- 1985-12-19 EP EP86900289A patent/EP0203986A1/fr not_active Withdrawn
- 1985-12-19 US US06/908,706 patent/US4724864A/en not_active Expired - Fee Related
- 1985-12-19 JP JP61500087A patent/JPS62501657A/ja active Pending
- 1985-12-19 WO PCT/LU1985/000002 patent/WO1986003855A1/fr active IP Right Grant
- 1985-12-23 CA CA000498512A patent/CA1280335C/fr not_active Expired - Fee Related
-
1986
- 1986-08-20 FI FI863373A patent/FI89637C/fi not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8603855A1 * |
Also Published As
Publication number | Publication date |
---|---|
FI89637C (fi) | 1993-10-25 |
LU85707A1 (de) | 1985-07-24 |
FI863373A (fi) | 1986-08-20 |
FI863373A0 (fi) | 1986-08-20 |
CA1280335C (fr) | 1991-02-19 |
FI89637B (fi) | 1993-07-15 |
US4724864A (en) | 1988-02-16 |
WO1986003855A1 (fr) | 1986-07-03 |
JPS62501657A (ja) | 1987-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19861218 |
|
17Q | First examination report despatched |
Effective date: 19880414 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19880826 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHWELM, HANS |