GB1222104A

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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