EP0085080A1 - Control circuit for a pneumo-hydraulic pressure intensifier. - Google Patents
Control circuit for a pneumo-hydraulic pressure intensifier.Info
- Publication number
- EP0085080A1 EP0085080A1 EP82902371A EP82902371A EP0085080A1 EP 0085080 A1 EP0085080 A1 EP 0085080A1 EP 82902371 A EP82902371 A EP 82902371A EP 82902371 A EP82902371 A EP 82902371A EP 0085080 A1 EP0085080 A1 EP 0085080A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- hydraulic
- cylinder
- piston
- control 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
- F15B11/072—Combined pneumatic-hydraulic systems
- F15B11/0725—Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
- F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
- F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
Definitions
- the aim of the invention was to eliminate the deficiencies mentioned and to develop a uniform gate direction with which the most varied hydraulic work equipment can be operated in an operating mode determined by the work to be carried out, and which can be easily adapted to the new work equipment after the work equipment has been replaced can.
- the object of the invention was assigned to ensure the hydraulic operation with a suitable control.
- the air conditioner (cooling, decompression, oil lubrication) ensures the air supply to the pressure converter with the aim of being able to achieve a longer service life.
- the quantity valves 4, 5 determine the speed, while the quantity valves 6, 7 determine the time instead of it a time valve of any type can be used.
- the control option ensured by the four quantity valves 4, 5, 6, 7 mentioned enables a wide variety of operating modes.
- Pigur 2 represents some examples of these variations, in which so-called path-time diagrams are illustrated.
Abstract
Transducteur de pression à commande pneumatique servant à actionner des organes hydrauliques de travail et pourvu d'un cylindre moteur double; sur un de ses côtés il y a un cylindre actionné pneumatiquement, sur l'autre de ses côtés un cylindre à action hydraulique; il est aussi pourvu de moyens de travail hydrauliques raccordés au côté hydraulique. L'essentiel de l'invention consiste en la présence d'une soupape de commande reliée à la chambre primaire qui se trouve devant le piston du cylindre pneumatique du cylindre moteur, soupape qui est en liaison de manoeuvre avec une soupape de démarrage tout en étant reliée par une soupape d'étranglement de retenue avec une autre soupape, et d'autre part en étant reliée par l'entremise d'un clapet de drainage avec le réservoir hydraulique, respectivement par la soupape avec la chambre secondaire du cylindre pneumatique. Une autre caractéristique essentielle consiste en ce que la soupape de commande est reliée par la soupape d'étranglement de retenue du réservoir hydraulique avec le cylindre hydraulique du cylindre moteur double, pour permettre ainsi une obturation à l'aide du piston hydraulique. La conduite située entre la soupape et le cylindre se trouve en liaison de commande avec la soupape de commande par l'entremise d'une soupape d'étranglement de retenue supplémentaire. Le transducteur de pression selon l'invention représente un dispositif relativement bon marché à structure unitaire et simple, à l'aide duquel les organes hydrauliques de travail les plus divers peuvent être actionnés d'une façon qui est déterminée par les organes de travail appliqués ainsi que par le mode d'opération assujetti à la tâche à accomplir.Pneumatically operated pressure transducer for actuating hydraulic working members and provided with a double engine cylinder; on one of its sides there is a pneumatically actuated cylinder, on the other of its sides a hydraulic cylinder; it is also provided with hydraulic working means connected to the hydraulic side. The essence of the invention consists in the presence of a control valve connected to the primary chamber which is located in front of the piston of the pneumatic cylinder of the engine cylinder, a valve which is in operating connection with a starting valve while being connected by a check valve with another valve, and on the other hand by being connected via a drain valve with the hydraulic tank, respectively by the valve with the secondary chamber of the pneumatic cylinder. Another essential characteristic is that the control valve is connected by the hydraulic tank check valve with the hydraulic cylinder of the double engine cylinder, thereby allowing closing using the hydraulic piston. The line between the valve and the cylinder is in control connection with the control valve by means of an additional check valve. The pressure transducer according to the invention represents a relatively inexpensive device with a unitary and simple structure, by means of which the most diverse hydraulic working members can be actuated in a manner which is determined by the working members thus applied. only by the mode of operation subject to the task at hand.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82902371T ATE19292T1 (en) | 1981-08-04 | 1982-08-04 | CONTROL CIRCUIT FOR A PNEUMATIC-HYDRAULIC PRESSURE CONVERTER. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU812257A HU185642B (en) | 1981-08-04 | 1981-08-04 | Penumatically controlled pressure converter for operating hydraulic work devices |
HU225781 | 1981-08-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0085080A1 true EP0085080A1 (en) | 1983-08-10 |
EP0085080A4 EP0085080A4 (en) | 1984-01-20 |
EP0085080B1 EP0085080B1 (en) | 1986-04-16 |
Family
ID=10958536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82902371A Expired EP0085080B1 (en) | 1981-08-04 | 1982-08-04 | Control circuit for a pneumo-hydraulic pressure intensifier |
Country Status (7)
Country | Link |
---|---|
US (1) | US4509330A (en) |
EP (1) | EP0085080B1 (en) |
JP (1) | JPS58501333A (en) |
DE (1) | DE3270622D1 (en) |
FI (1) | FI75214C (en) |
HU (1) | HU185642B (en) |
WO (1) | WO1983000540A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729224A (en) * | 1984-06-04 | 1988-03-08 | Mcateer James D | Installation, apparatus and method for actuating doors, gates and the like under extreme environmental conditions |
IT207878Z2 (en) * | 1986-03-06 | 1988-02-22 | Iveco Fiat | HYDRAULIC PNEUMO CONVERTER FOR DISC BRAKE CALIPERS |
DE3611438A1 (en) * | 1986-04-05 | 1987-10-08 | Medical Res & Dev Ag | Pneumatic/hydraulic converter |
US4879875A (en) * | 1988-03-22 | 1989-11-14 | The Boeing Company | Fastener driving tool |
DK171121B1 (en) * | 1989-08-15 | 1996-06-17 | Johannes Vagn Baatrup | Hydraulic pressure amplifier |
DE4221638B4 (en) * | 1992-07-02 | 2005-11-03 | Tox Pressotechnik Gmbh & Co. Kg | Method for a hydraulic pressure booster |
AT406984B (en) * | 1998-12-22 | 2000-11-27 | Joerg Thurner | DEVICE FOR CONVERTING ENERGY STORED IN COMPRESSED AIR IN MECHANICAL WORK |
US20110225961A1 (en) * | 2008-12-10 | 2011-09-22 | Numatics, Incorporated | Pressurized Air-Spring Return Cylinder and Pneumatic Intensifier System |
ITMO20100044A1 (en) * | 2010-02-26 | 2011-08-27 | De Hieronymis Carlo Maria Rozzi | HYDRAULIC STRENGTHENING INTENSIFIER WITH MAINTENANCE OF THE REACHED POSITION AND THE PUSHING STRENGTH OBTAINED DURING EVERY RESCUE PHASE |
TWM396335U (en) * | 2010-07-23 | 2011-01-11 | Chanto Air Hydraulics Co Ltd | Pressure-boosting cylinder capable of storing oil |
CN103586995A (en) * | 2013-11-12 | 2014-02-19 | 乐山市新联机械制造有限责任公司 | Gas-liquid pressurization device for discharge door of internal mixer |
WO2020178832A1 (en) * | 2019-03-05 | 2020-09-10 | Dan Davidian | System and method for hydraulic-pneumatic drive with energy storage for elevators |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3748860A (en) * | 1971-02-05 | 1973-07-31 | Altec Mfg Co Inc | Hydraulic booster |
FR2229876A1 (en) * | 1973-05-14 | 1974-12-13 | Beneteau Donald | |
FR2231868A2 (en) * | 1973-05-29 | 1974-12-27 | Bendix Corp |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1940304A (en) * | 1932-02-23 | 1933-12-19 | Bergue S Patents Ltd De | Machine for riveting, punching, pressing, stamping, and like operations |
US2169423A (en) * | 1936-08-04 | 1939-08-15 | Midland Steel Prod Co | Riveter |
US3407601A (en) * | 1965-07-26 | 1968-10-29 | Martin Tool Works Inc | Air-hydraulic system and apparatus |
US3638532A (en) * | 1969-06-30 | 1972-02-01 | Fastener Corp | Fastener driving tool |
SU767410A1 (en) * | 1978-07-03 | 1980-09-30 | Центральное проектно-конструкторское технологическое бюро "Автоспецоборудование" | Reciprocatory air drive with automatic reverse |
US4288987A (en) * | 1978-11-11 | 1981-09-15 | Eugen Rapp | Pneumo-hydraulic booster with rapid-traverse feature |
SU907319A1 (en) * | 1980-06-30 | 1982-02-23 | Московский автомобильный завод им.И.А.Лихачева | Reciprocation-motion pneumohydraulic drive |
DE3032430A1 (en) * | 1980-08-28 | 1982-03-04 | F.E. Schulte Strathaus Kg, 4750 Unna | Fluid control valve pressure intensifier - uses four-two way valve connected to three-two way delay valves which provide reversal at preset pressure |
-
1981
- 1981-08-04 HU HU812257A patent/HU185642B/en not_active IP Right Cessation
-
1982
- 1982-08-04 WO PCT/HU1982/000037 patent/WO1983000540A1/en active IP Right Grant
- 1982-08-04 US US06/483,949 patent/US4509330A/en not_active Expired - Fee Related
- 1982-08-04 EP EP82902371A patent/EP0085080B1/en not_active Expired
- 1982-08-04 DE DE8282902371T patent/DE3270622D1/en not_active Expired
- 1982-08-04 JP JP57502416A patent/JPS58501333A/en active Pending
-
1983
- 1983-03-30 FI FI831086A patent/FI75214C/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3748860A (en) * | 1971-02-05 | 1973-07-31 | Altec Mfg Co Inc | Hydraulic booster |
FR2229876A1 (en) * | 1973-05-14 | 1974-12-13 | Beneteau Donald | |
FR2231868A2 (en) * | 1973-05-29 | 1974-12-27 | Bendix Corp |
Non-Patent Citations (9)
Title |
---|
DESIGN ENGINEERING, Band 39, Dezember 1974 LONDEN (GB) * |
DESIGN ENGINEERING, Band 39, Dezember 1974 LONDEN (GB) "Applications of dashpot cylinders and check-units in hydro-pneumatic techniques", Seiten 29,31-35. * |
ENGINEERS DIGEST, Band 34, Nr. 8, August 1973 LONDEN (GB) * |
ENGINEERS DIGEST, Band 34, nr. 8, August 1973 LONDON (GB) "Low-Cost Pneumatic Time-Delay Systems", Seiten 29-31. * |
ÖLHYDRAULIK UND PNEUMATIK, Band 15, Nr. 1, Januar 1971 MAINZ (DE) * |
ÖLHYDRAULIK UND PNEUMATIK, Band 15, Nr. 1, Januar 1971 MAINZ (DE) K.-H. MUTH: "Pneumatisch verzögerte Steuerung von Druckluft-Wegeventilen", Seiten 36,37 * |
PRODUCT ENGINEERING, Band 40, Nr. 12, 16. Juni 1969 NEW YORK (US) * |
PRODUCT ENGINEERING, Band 40, Nr. 12, 16. Juni 1969 NEW YORK (US) "Intensifier powered by shop air delivers 200,000-psi oil pressure", Seiten 115,116 * |
See also references of WO8300540A1 * |
Also Published As
Publication number | Publication date |
---|---|
FI831086L (en) | 1983-03-30 |
JPS58501333A (en) | 1983-08-11 |
HU185642B (en) | 1985-03-28 |
US4509330A (en) | 1985-04-09 |
FI75214B (en) | 1988-01-29 |
FI75214C (en) | 1988-05-09 |
EP0085080A4 (en) | 1984-01-20 |
DE3270622D1 (en) | 1986-05-22 |
WO1983000540A1 (en) | 1983-02-17 |
EP0085080B1 (en) | 1986-04-16 |
FI831086A0 (en) | 1983-03-30 |
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