GB1222104A – A control system for hydraulic alloy operated appliances
– Google Patents
GB1222104A – A control system for hydraulic alloy operated appliances
– Google Patents
A control system for hydraulic alloy operated appliances
Info
Publication number
GB1222104A
GB1222104A
GB00912/68A
GB1091268A
GB1222104A
GB 1222104 A
GB1222104 A
GB 1222104A
GB 00912/68 A
GB00912/68 A
GB 00912/68A
GB 1091268 A
GB1091268 A
GB 1091268A
GB 1222104 A
GB1222104 A
GB 1222104A
Authority
GB
United Kingdom
Prior art keywords
valves
valve
actuator
pumps
neutral
Prior art date
1967-03-10
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.)
Expired
Application number
GB00912/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orenstein Koppel und Luebecker Maschinenbau AG
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
Orenstein Koppel und Luebecker Maschinenbau AG
Priority date (The priority date 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 date listed.)
1967-03-10
Filing date
1968-03-06
Publication date
1971-02-10
1968-03-06
Application filed by O&K Orenstein and Koppel GmbH, Orenstein Koppel und Luebecker Maschinenbau AG
filed
Critical
O&K Orenstein and Koppel GmbH
1971-02-10
Publication of GB1222104A
publication
Critical
patent/GB1222104A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
E—FIXED CONSTRUCTIONS
E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
E02F—DREDGING; SOIL-SHIFTING
E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 – E02F7/00
E02F9/20—Drives; Control devices
E02F9/22—Hydraulic or pneumatic drives
E02F9/2221—Control of flow rate; Load sensing arrangements
E—FIXED CONSTRUCTIONS
E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
E02F—DREDGING; SOIL-SHIFTING
E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 – E02F7/00
E02F9/20—Drives; Control devices
E02F9/22—Hydraulic or pneumatic drives
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
F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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
F15B2211/20546—Type of pump variable 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
F15B2211/31—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
F15B2211/70—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
F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
F15B2211/7058—Rotary 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
F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
Abstract
1,222,104. Excavators. ORENSTEIN-KOPPEL UND LUBECKER MASGHINENBAU A.G. 6 March, 1968 [10 March, 1967], No. 10912/68. Heading E1F. [Also in Division F1] A control system for an excavator (not shown) comprises two pumps 1, 2 each connected to an associated pre-set relief valve 16, 15 which delivers pressure-relieved hydraulic fluid through a check valve 17, 19 and through lines 18, 20 neutral-positioned slide valves 9, 10 controlling associated motors 3, 4, 5 to a common line 21 which passes successively through neutral-positioned slide valves 12, 14, 13 for controlling associated actuators 6, 8, 7 whereby on opening any of one of valves 12, 14, 13 the pressure-relieved output of both pumps becomes blocked resulting in closure of both relief valves 15, 16 thereby rendering the output pressure of both pumps available to a selected actuators 12, 13 or 14. Motors 3, 4 propel the excavator, motor 5 pivots it and actuators 6, 7, 8 serve to operate a jib, dip arm and grab respectively. In operation and with valves 9, 10, 11, 13, 14 in neutral operation of any one of valves 12, 13, 14 say valve 12 in either direction, e.g. to the left connects the pressure delivery line 26 of pump 1 through a branch line 27 to the upper end of actuator 6 the lower end of which is connected to reservoir 25. At the same time the delivery of pump 2 passes along lines 28, 29, 30, 31, check valve 32 and 33 and is added to the delivery of pump 1 to assist in supplying the actuator 6. If now valve 13 is also displaced in either direction, e.g. ito the left pump 2 instead of delivering to actuator 6 delivers to the underside of actuator 7. Similarly with valve 12, 14 in neutral and valve 13 open both pumps supply actuator 7 and with valves 12, 13 in neutral and valve 14 open both pumps supply actuator 8. Only two of the three actuators can operate together and even though all three valves 12, 13, 14 may be operated valves 12, 13 are connected to their respeotve pumps whilst valve 14 is starved.
GB00912/68A
1967-03-10
1968-03-06
A control system for hydraulic alloy operated appliances
Expired
GB1222104A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE1634915A
DE1634915C3
(en)
1967-03-10
1967-03-10
Circuit for hydraulic excavator
Publications (1)
Publication Number
Publication Date
GB1222104A
true
GB1222104A
(en)
1971-02-10
Family
ID=7352746
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB00912/68A
Expired
GB1222104A
(en)
1967-03-10
1968-03-06
A control system for hydraulic alloy operated appliances
Country Status (11)
Country
Link
US
(1)
US3478647A
(en)
JP
(1)
JPS5345475B1
(en)
AT
(1)
AT284018B
(en)
BE
(1)
BE711290A
(en)
CH
(1)
CH481279A
(en)
DE
(1)
DE1634915C3
(en)
FI
(1)
FI47676C
(en)
FR
(1)
FR1555395A
(en)
GB
(1)
GB1222104A
(en)
NL
(1)
NL6802984A
(en)
SE
(1)
SE334129B
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS4846769A
(en)
*
1971-10-20
1973-07-03
GB2243879A
(en)
*
1990-03-09
1991-11-13
Kubota Kk
Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
US5701795A
(en)
*
1992-12-11
1997-12-30
Danfoss A/S
Hydraulic system
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
BE792617A
(en)
*
1971-12-13
1973-06-12
Caterpillar Tractor Co
Hydraulic circuit for an excavator.
US3792836A
(en)
*
1972-03-06
1974-02-19
E Bender
Simplified well rig
DE2364282C3
(en)
*
1973-12-22
1983-01-13
O & K Orenstein & Koppel Ag, 1000 Berlin
Circuit arrangement for hydraulic motors
CA1278978C
(en)
*
1987-02-19
1991-01-15
Lary Lynn Williams
Hydraulic system for an industrial machine
JPS63308821A
(en)
*
1987-06-10
1988-12-16
Matsushita Electric Ind Co Ltd
Movable electronic parts
JPH078601Y2
(en)
*
1987-11-10
1995-03-01
株式会社クボタ
Backhoe hydraulic circuit
JPH02101440U
(en)
*
1989-01-27
1990-08-13
US5469797A
(en)
*
1994-02-07
1995-11-28
Hearne, Jr.; David C.
Sugar cane planter
DE19744327C1
(en)
*
1997-10-08
1998-10-22
Walterscheid Gmbh Gkn
Apparatus for stabilising guide rods of a tractor
DE19911440C2
(en)
*
1999-03-04
2002-09-19
Komatsu Mining Germany Gmbh
Device and method for controlling a hydraulic system of a construction machine, in particular a hydraulic excavator
CN109944835A
(en)
*
2019-04-02
2019-06-28
重庆平山矿山机电设备有限公司
A kind of hydraulic system and drilling machine of drilling machine
CN110482084B
(en)
*
2019-08-20
2021-11-19
长沙中联重科环境产业有限公司
Garbage compactor
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2319551A
(en)
*
1937-08-09
1943-05-18
Fosdick Machine Tool Co
Hydraulic operating and control mechanism for machine tools
US2244213A
(en)
*
1939-01-12
1941-06-03
Hydraulic Control Engineering
Valve structure
US3156098A
(en)
*
1959-11-20
1964-11-10
Ford Motor Co
Hydraulic power system
US3146593A
(en)
*
1960-04-18
1964-09-01
Parker Hannifin Corp
Dual pump system and control valve assembly therefor
1967
1967-03-10
DE
DE1634915A
patent/DE1634915C3/en
not_active
Expired
1968
1968-02-09
AT
AT124368A
patent/AT284018B/en
not_active
IP Right Cessation
1968-02-14
FI
FI680385A
patent/FI47676C/en
active
1968-02-26
BE
BE711290D
patent/BE711290A/xx
not_active
Expired
1968-03-01
NL
NL6802984A
patent/NL6802984A/xx
unknown
1968-03-01
SE
SE02686/68A
patent/SE334129B/xx
unknown
1968-03-05
CH
CH323368A
patent/CH481279A/en
not_active
IP Right Cessation
1968-03-06
GB
GB00912/68A
patent/GB1222104A/en
not_active
Expired
1968-03-08
FR
FR1555395D
patent/FR1555395A/fr
not_active
Expired
1968-03-09
JP
JP6815169A
patent/JPS5345475B1/ja
active
Pending
1968-03-11
US
US712189A
patent/US3478647A/en
not_active
Expired – Lifetime
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS4846769A
(en)
*
1971-10-20
1973-07-03
JPS5148231B2
(en)
*
1971-10-20
1976-12-20
GB2243879A
(en)
*
1990-03-09
1991-11-13
Kubota Kk
Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
GB2243879B
(en)
*
1990-03-09
1993-12-08
Kubota Kk
Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
US5289680A
(en)
*
1990-03-09
1994-03-01
Kubota Corporation
Two pump hydraulic system with relief valves having different relief pressures
US5701795A
(en)
*
1992-12-11
1997-12-30
Danfoss A/S
Hydraulic system
Also Published As
Publication number
Publication date
CH481279A
(en)
1969-11-15
FI47676C
(en)
1974-02-11
FI47676B
(en)
1973-10-31
BE711290A
(en)
1968-07-01
FR1555395A
(en)
1969-01-24
JPS5345475B1
(en)
1978-12-06
DE1634915B2
(en)
1977-09-08
US3478647A
(en)
1969-11-18
DE1634915C3
(en)
1981-02-12
SE334129B
(en)
1971-04-05
AT284018B
(en)
1970-08-25
DE1634915A1
(en)
1970-10-29
NL6802984A
(en)
1968-09-11
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