SE8200996L - LOADING OR OVERCENT VALVE - Google Patents
LOADING OR OVERCENT VALVEInfo
- Publication number
- SE8200996L SE8200996L SE8200996A SE8200996A SE8200996L SE 8200996 L SE8200996 L SE 8200996L SE 8200996 A SE8200996 A SE 8200996A SE 8200996 A SE8200996 A SE 8200996A SE 8200996 L SE8200996 L SE 8200996L
- Authority
- SE
- Sweden
- Prior art keywords
- valve
- chamber
- control
- partition wall
- spring
- Prior art date
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
- F15B11/003—Systems with load-holding 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
- F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow 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
- F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The load-holding or overcentre valve for hydraulic systems comprises a valve housing (30) which contains a valve chamber (75) and a control chamber (54). The valve chamber (75) has a first (76) and a second connection opening (35), between which a spring-loaded non-return valve (37, 38) and a spring-loaded pressure relief valve (41, 42, 43) are arranged. The control chamber (54) is separated from the valve chamber (75) by a partition wall (47) and supplied with control pressure via a third connection opening (50). This pressure acts via a control piston guided displaceably in the control chamber (54) and via a tappet pin (58) guided freely displaceably in a bore (57) in the partition wall (47) on the pressure relief valve (41, 42, 43). On the valve chamber (75) side, the tappet pin (58) has a head (59) which can be pressed into sealing contact with the partition wall (47). <IMAGE>
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8200996A SE442765B (en) | 1982-02-18 | 1982-02-18 | LAST pouring VALVE |
DE19833305282 DE3305282A1 (en) | 1982-02-18 | 1983-02-16 | Load-holding valve or overcentre valve for hydraulic systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8200996A SE442765B (en) | 1982-02-18 | 1982-02-18 | LAST pouring VALVE |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8200996L true SE8200996L (en) | 1983-08-19 |
SE442765B SE442765B (en) | 1986-01-27 |
Family
ID=20346039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8200996A SE442765B (en) | 1982-02-18 | 1982-02-18 | LAST pouring VALVE |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3305282A1 (en) |
SE (1) | SE442765B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4109680A1 (en) * | 1991-03-23 | 1992-09-24 | Fluidtech Gmbh | VALVE WITH PRESETABLE CONSTANT CLOSING FORCE |
DE4221213A1 (en) * | 1992-06-27 | 1994-01-05 | Rexroth Mannesmann Gmbh | Pressure limiting valve for hydraulic equipment - has pair of stops to limit movement range of a control piston plunger. |
DE19627306A1 (en) * | 1996-07-06 | 1998-01-08 | Bosch Gmbh Robert | Stop valve with pressure limitation |
DE19750253C2 (en) * | 1997-11-13 | 2002-01-17 | Wessel Hydraulik | Load-holding valve arrangement |
DE10336684A1 (en) * | 2003-08-09 | 2005-03-03 | Deere & Company, Moline | Hydraulic control arrangement for a mobile work machine |
US9273702B2 (en) | 2011-10-21 | 2016-03-01 | Sun Hydraulics Corporation | Dynamically adjusting counterbalance valve |
CN109058216B (en) * | 2018-09-21 | 2020-05-22 | 浙江奥诗柯流体控制股份有限公司 | Balance valve |
CN108999824B (en) * | 2018-09-21 | 2020-04-17 | 玉环信得利阀业股份有限公司 | Energy-saving balance valve |
DE102019218401B3 (en) * | 2019-11-27 | 2021-04-01 | Hawe Hydraulik Se | Load holding valve, load holding valve set and method for assembling a load holding valve |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2211404A1 (en) * | 1972-03-09 | 1973-09-13 | Rexroth Gmbh G L | UNLOCKABLE NON-RETURN VALVE |
DE2559029C2 (en) * | 1975-12-29 | 1985-10-31 | Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München | Brake valve |
IT1118648B (en) * | 1979-05-18 | 1986-03-03 | Chs Cinotto Giuseppe Hydraulic | SAFETY DEVICE FOR HYDRAULIC CIRCUITS, ESPECIALLY OF LIFT AND SIMILAR EXCAVATORS |
-
1982
- 1982-02-18 SE SE8200996A patent/SE442765B/en not_active IP Right Cessation
-
1983
- 1983-02-16 DE DE19833305282 patent/DE3305282A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE3305282A1 (en) | 1983-08-25 |
SE442765B (en) | 1986-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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