SE371259B - - Google Patents
Info
- Publication number
- SE371259B SE371259B SE7212892A SE1289272A SE371259B SE 371259 B SE371259 B SE 371259B SE 7212892 A SE7212892 A SE 7212892A SE 1289272 A SE1289272 A SE 1289272A SE 371259 B SE371259 B SE 371259B
- Authority
- SE
- Sweden
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/54—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
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- 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
-
- 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
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- 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
- F15B2211/30505—Non-return valves, i.e. check 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/3051—Cross-check 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
- F15B2211/30—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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- 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
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- 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
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
- F15B2211/50—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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7052—Single-acting output members
-
- 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
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- 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
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations
-
- 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
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2605—Pressure responsive
- Y10T137/2617—Bypass or relief valve biased open
-
- 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
- Y10T137/87169—Supply and exhaust
- Y10T137/87177—With bypass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Jib Cranes (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7212892A SE371259B (de) | 1972-10-05 | 1972-10-05 | |
US385269A US3922954A (en) | 1972-10-05 | 1973-08-03 | Load-sensing and pressure-limiting device with accelerated tripping |
AT750973A AT335669B (de) | 1972-10-05 | 1973-08-29 | Lasterfassungs- und druckbegrenzungsorgan mit beschleunigter auslosung |
DE2343832A DE2343832C3 (de) | 1972-10-05 | 1973-08-30 | Lästertassungs- und Druckbegrenzungsvorrichtung für druckmittelbetriebene Arbeitsgeräte |
FR7335805A FR2202236B1 (de) | 1972-10-05 | 1973-10-03 | |
JP48111895A JPS4971373A (de) | 1972-10-05 | 1973-10-05 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7212892A SE371259B (de) | 1972-10-05 | 1972-10-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE371259B true SE371259B (de) | 1974-11-11 |
Family
ID=20296479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7212892A SE371259B (de) | 1972-10-05 | 1972-10-05 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3922954A (de) |
JP (1) | JPS4971373A (de) |
AT (1) | AT335669B (de) |
DE (1) | DE2343832C3 (de) |
FR (1) | FR2202236B1 (de) |
SE (1) | SE371259B (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3991832A (en) * | 1975-07-14 | 1976-11-16 | Deere & Company | Hydraulically tiltable and anglable dozer blade and mounting therefor |
US4093092A (en) * | 1976-03-24 | 1978-06-06 | Caterpillar Tractor Co. | Load limiting device |
US4102250A (en) * | 1976-08-16 | 1978-07-25 | Caterpillar Tractor Co. | Load check and bypass valve |
US4157736A (en) * | 1978-01-11 | 1979-06-12 | Carbert Ralph E | Overload protection apparatus for hydraulic multi-function equipment |
US4222491A (en) * | 1978-08-02 | 1980-09-16 | Eaton Corporation | Crane operating aid and sensor arrangement therefor |
GB2050646B (en) * | 1979-06-15 | 1983-04-13 | Sperry Rand Corp | Hydraulic actuator controls |
DE2935949A1 (de) * | 1979-09-06 | 1981-03-26 | Alfred Teves GmbH, 60488 Frankfurt | Ventileinrichtung |
US4345435A (en) * | 1980-05-05 | 1982-08-24 | Sperry Corporation | Power transmission |
FR2489773A1 (fr) * | 1980-09-11 | 1982-03-12 | Connel Ltd F W | Systeme hydraulique utilisable dans la combinaison d'un engin de travail avec un vehicule en particulier de remorquage |
JPS57138583A (en) * | 1981-02-16 | 1982-08-26 | Toyama Machine Works | Controller for pressure for balance |
US4561824A (en) * | 1981-03-03 | 1985-12-31 | Hitachi, Ltd. | Hydraulic drive system for civil engineering and construction machinery |
US4609019A (en) * | 1982-09-30 | 1986-09-02 | Hutson James Henry | Hydraulic fed log debarker |
US4522242A (en) * | 1982-09-30 | 1985-06-11 | Hutson James Henry | Hydraulic fed log debarker |
US4569096A (en) * | 1982-09-30 | 1986-02-11 | Fmc Corporation | Sweeper with hydraulically driven components |
DE3433535C2 (de) * | 1984-09-12 | 1986-07-17 | Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München | Zweistellungs-Schaltventil mit hydraulischer Selbsthaltung |
US5918670A (en) * | 1991-08-31 | 1999-07-06 | Expro North Sea Limited | Multi-sensor relief valve well test system |
GB9118692D0 (en) * | 1991-08-31 | 1991-10-16 | Coutts Graeme F | Multi-sensor relief valve well test system |
DK167322B1 (da) * | 1991-10-28 | 1993-10-11 | Danfoss As | Hydraulisk kredsloeb |
DE4137856A1 (de) * | 1991-11-16 | 1993-05-19 | Claas Saulgau Gmbh | Hydraulische betaetigungseinrichtung fuer funktionselemente von landwirtschaftlichen maschinen, beispielsweise ladewagen |
US5244402A (en) * | 1992-12-18 | 1993-09-14 | International Business Machines Corporation | Socket for multiple types of telephone plugs |
DE19640100B4 (de) * | 1996-09-28 | 2005-07-14 | Sauer-Danfoss Holding Aps | Hydraulisches System |
DE10216119A1 (de) * | 2002-04-12 | 2003-10-23 | Bosch Rexroth Ag | Hydraulische Steueranordnung in Load-Sensing Technik |
US9835181B2 (en) * | 2013-04-22 | 2017-12-05 | Illinois Tool Works Inc. | Systems and methods for detecting a type of hydraulic device |
CN115806240B (zh) * | 2023-02-08 | 2023-04-25 | 河南省朝前建设工程有限公司 | 一种起重机载荷检测装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2239148A (en) * | 1938-06-10 | 1941-04-22 | Hydraulie Dev Corp Inc | Fluid pressure relief or unloading valve |
US2536663A (en) * | 1944-02-24 | 1951-01-02 | Sulzer Ag | Pressure regulating system for filters |
US2467576A (en) * | 1945-01-25 | 1949-04-19 | Zimmermann Lukas | Hydraulic system utilizing flow dividers |
US2420394A (en) * | 1945-12-10 | 1947-05-13 | Cread Engineering And Res Comp | Unloading valve for hydraulic circuits |
US2659206A (en) * | 1951-04-18 | 1953-11-17 | Goodman Mfg Co | Mining machine hydraulic control system and master safety valve therefor |
US2739607A (en) * | 1952-05-03 | 1956-03-27 | Gen Electric | Fluid pressure regulating device |
US3024732A (en) * | 1957-02-01 | 1962-03-13 | Sargent Engineering Corp | Regulating valve |
US3478646A (en) * | 1967-12-20 | 1969-11-18 | Tractor Co | Relief valve for hydraulic circuits |
-
1972
- 1972-10-05 SE SE7212892A patent/SE371259B/xx unknown
-
1973
- 1973-08-03 US US385269A patent/US3922954A/en not_active Expired - Lifetime
- 1973-08-29 AT AT750973A patent/AT335669B/de not_active IP Right Cessation
- 1973-08-30 DE DE2343832A patent/DE2343832C3/de not_active Expired
- 1973-10-03 FR FR7335805A patent/FR2202236B1/fr not_active Expired
- 1973-10-05 JP JP48111895A patent/JPS4971373A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ATA750973A (de) | 1976-07-15 |
AT335669B (de) | 1977-03-25 |
DE2343832C3 (de) | 1979-11-15 |
DE2343832A1 (de) | 1974-04-11 |
US3922954A (en) | 1975-12-02 |
JPS4971373A (de) | 1974-07-10 |
FR2202236B1 (de) | 1977-05-27 |
FR2202236A1 (de) | 1974-05-03 |
DE2343832B2 (de) | 1979-03-22 |