FI821849A0 - Hydraulisk styrventil - Google Patents
Hydraulisk styrventilInfo
- Publication number
- FI821849A0 FI821849A0 FI821849A FI821849A FI821849A0 FI 821849 A0 FI821849 A0 FI 821849A0 FI 821849 A FI821849 A FI 821849A FI 821849 A FI821849 A FI 821849A FI 821849 A0 FI821849 A0 FI 821849A0
- Authority
- FI
- Finland
- Prior art keywords
- passage
- extension
- retraction
- open
- regenerative
- 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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
-
- 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
- F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
- F15B2011/0243—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits the regenerative circuit being activated or deactivated automatically
-
- 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
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/75—Control of speed of the output member
-
- 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
- Y10T137/2544—Supply and exhaust type
- Y10T137/2554—Reversing or 4-way valve systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Valve Device For Special Equipments (AREA)
- Compressor (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Control Of Presses (AREA)
- Actuator (AREA)
- External Artificial Organs (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26911081 | 1981-06-01 | ||
US06/269,110 US4397221A (en) | 1981-06-01 | 1981-06-01 | Regenerative valve |
Publications (3)
Publication Number | Publication Date |
---|---|
FI821849A0 true FI821849A0 (fi) | 1982-05-24 |
FI70302B FI70302B (fi) | 1986-02-28 |
FI70302C FI70302C (fi) | 1986-09-15 |
Family
ID=23025843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI821849A FI70302C (fi) | 1981-06-01 | 1982-05-24 | Hydraulisk styrventil |
Country Status (8)
Country | Link |
---|---|
US (1) | US4397221A (fi) |
EP (1) | EP0066274B1 (fi) |
AT (1) | ATE15253T1 (fi) |
CA (1) | CA1169742A (fi) |
DE (1) | DE3265820D1 (fi) |
ES (1) | ES512689A0 (fi) |
FI (1) | FI70302C (fi) |
ZA (1) | ZA823823B (fi) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4723476A (en) * | 1982-02-22 | 1988-02-09 | The Cessna Aircraft Company | Regenerative valve |
US5014734A (en) * | 1990-08-31 | 1991-05-14 | Caterpillar Inc. | Quick drop valve |
US5251705A (en) * | 1992-03-19 | 1993-10-12 | Deere & Company | Electrical trigger for quick drop valve |
US5233909A (en) * | 1992-07-21 | 1993-08-10 | Decatur Cylinder, Inc. | Integral regenerative fluid system |
US5226348A (en) * | 1992-12-14 | 1993-07-13 | Caterpillar Inc. | Electro-hydraulic quick drop circuit |
US5370038A (en) * | 1992-12-21 | 1994-12-06 | Caterpillar Inc. | Regeneration circuit for a hydraulic system |
FR2726343B1 (fr) * | 1994-10-28 | 1997-01-24 | Kuhn Sa | Valve a quatre orifices de raccordement et deux positions |
US6094910A (en) * | 1995-12-22 | 2000-08-01 | Maritime Hydraulics As | Apparatus and method for raising and lowering a piston in a piston cylinder arrangement in a derrick |
KR19990087371A (ko) * | 1996-02-28 | 1999-12-27 | 모서 다니엘 | 내하중 브레이크 밸브 |
US5682955A (en) * | 1996-09-06 | 1997-11-04 | Caterpillar Inc. | Blade control system for an earthmoving blade |
US5960814A (en) * | 1997-09-12 | 1999-10-05 | Ngt, Llc. | Counter balanced locking valve |
KR100611713B1 (ko) * | 2004-10-14 | 2006-08-11 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 재생기능을 구비한 유압제어밸브 |
US8262058B2 (en) * | 2008-08-28 | 2012-09-11 | Kot Norbert J | Balanced pilot operated check valve |
US20100090143A1 (en) * | 2008-08-28 | 2010-04-15 | Kot Norbert J | Dual locking valve |
WO2014171953A1 (en) * | 2013-04-19 | 2014-10-23 | Cascade Corporation | Clamping attachment with regenerative hydraulic circuit |
US9611871B2 (en) | 2013-09-13 | 2017-04-04 | Norbert J. Kot | Pneumatic valve assembly and method |
US11015624B2 (en) | 2016-05-19 | 2021-05-25 | Steven H. Marquardt | Methods and devices for conserving energy in fluid power production |
US10550863B1 (en) | 2016-05-19 | 2020-02-04 | Steven H. Marquardt | Direct link circuit |
US10914322B1 (en) | 2016-05-19 | 2021-02-09 | Steven H. Marquardt | Energy saving accumulator circuit |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR694928A (fr) * | 1929-04-27 | 1930-12-09 | Waterbury Tool Co | Perfectionnements aux mécanismes de commande des machines-outils |
US2379180A (en) * | 1940-02-10 | 1945-06-26 | Vickers Inc | Hydraulic retractor control |
US2267284A (en) * | 1941-03-10 | 1941-12-23 | Livers Carlos Benjamin | By-pass valve |
US2367682A (en) * | 1943-04-09 | 1945-01-23 | Adel Prec Products Corp | Landing gear by-pass valve |
US2376519A (en) * | 1943-07-29 | 1945-05-22 | French Oil Mill Machinery | Valve control for presses and the like |
US2694384A (en) * | 1949-06-21 | 1954-11-16 | Carroil L Evans | Control mechanism for hydraulic rams with automatic and adjustable selfstopping mechanism |
US2590454A (en) * | 1949-09-13 | 1952-03-25 | John S Pilch | Hydraulic by-pass system and valve therefor |
US2628731A (en) * | 1949-09-17 | 1953-02-17 | Bucyrus Erie Co | Hydraulically operated tractor shovel |
US2646025A (en) * | 1951-02-07 | 1953-07-21 | Bendix Aviat Corp | By-pass valve for hydraulic motors |
US2890683A (en) * | 1952-02-06 | 1959-06-16 | John S Pilch | Fluid actuated control valve means for fluid motors |
US3237636A (en) * | 1962-01-22 | 1966-03-01 | Hough Co Frank | Controlled pressure by pass valve |
US3234957A (en) * | 1963-04-22 | 1966-02-15 | Fawick Corp | Adjustable, metered directional flow control arrangement |
US3319653A (en) * | 1963-11-21 | 1967-05-16 | Borg Warner | Flow control valves |
US3267961A (en) * | 1964-04-16 | 1966-08-23 | New York Air Brake Co | Valve |
US3335739A (en) * | 1964-12-03 | 1967-08-15 | New York Air Brake Co | Valve |
US3439583A (en) * | 1966-04-14 | 1969-04-22 | Parker Hannifin Corp | Flow control valve having a pressure limiting tubular valve member |
US3448685A (en) * | 1967-08-01 | 1969-06-10 | Caterpillar Tractor Co | Quick drop valve for bulldozer blade hydraulic controls |
US3465788A (en) * | 1967-09-01 | 1969-09-09 | Koehring Co | Hydraulic control valve with void prevention means |
US3474824A (en) * | 1968-01-17 | 1969-10-28 | Deere & Co | Dump valve for hydraulic control system |
US3474708A (en) * | 1968-01-17 | 1969-10-28 | Parker Hannifin Corp | Valve assembly for fluid motors and the like |
US3497032A (en) * | 1968-07-01 | 1970-02-24 | Allis Chalmers Mfg Co | Balanced hydraulic steering system |
US3568707A (en) * | 1968-12-16 | 1971-03-09 | Int Harvester Co | Quick drop valve |
US3654835A (en) * | 1970-05-25 | 1972-04-11 | Ato Inc | Regeneration valve |
US3795177A (en) * | 1971-11-04 | 1974-03-05 | Caterpillar Tractor Co | Fluid motor control circuit providing selective fast motion |
JPS5730483Y2 (fi) * | 1976-06-10 | 1982-07-05 | ||
DE2648608C3 (de) * | 1976-10-27 | 1979-11-29 | Walter Hunger Kg, 8770 Lohr | Steuereinrichtung für einen Differentialzylinder |
US4144947A (en) * | 1976-12-10 | 1979-03-20 | David Brown Tractors Limited | Power steering systems |
US4216702A (en) * | 1978-05-01 | 1980-08-12 | Eaton Yale Ltd. | Pressure sensing regenerative hydraulic system |
-
1981
- 1981-06-01 US US06/269,110 patent/US4397221A/en not_active Expired - Lifetime
-
1982
- 1982-05-10 CA CA000402602A patent/CA1169742A/en not_active Expired
- 1982-05-24 FI FI821849A patent/FI70302C/fi not_active IP Right Cessation
- 1982-05-28 EP EP82104683A patent/EP0066274B1/de not_active Expired
- 1982-05-28 DE DE8282104683T patent/DE3265820D1/de not_active Expired
- 1982-05-28 AT AT82104683T patent/ATE15253T1/de not_active IP Right Cessation
- 1982-05-31 ES ES512689A patent/ES512689A0/es active Granted
- 1982-06-01 ZA ZA823823A patent/ZA823823B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
EP0066274A1 (de) | 1982-12-08 |
FI70302B (fi) | 1986-02-28 |
CA1169742A (en) | 1984-06-26 |
ES8306235A1 (es) | 1983-05-01 |
US4397221A (en) | 1983-08-09 |
EP0066274B1 (de) | 1985-08-28 |
DE3265820D1 (en) | 1985-10-03 |
ZA823823B (en) | 1984-01-25 |
ES512689A0 (es) | 1983-05-01 |
ATE15253T1 (de) | 1985-09-15 |
FI70302C (fi) | 1986-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: DEERE & COMPANY |