GB1292162A – Improvements in and relating to the electro-hydraulic remote control of hydraulic multi-position valves
– Google Patents
GB1292162A – Improvements in and relating to the electro-hydraulic remote control of hydraulic multi-position valves
– Google Patents
Improvements in and relating to the electro-hydraulic remote control of hydraulic multi-position valves
Info
Publication number
GB1292162A
GB1292162A
GB54371/69A
GB5437169A
GB1292162A
GB 1292162 A
GB1292162 A
GB 1292162A
GB 54371/69 A
GB54371/69 A
GB 54371/69A
GB 5437169 A
GB5437169 A
GB 5437169A
GB 1292162 A
GB1292162 A
GB 1292162A
Authority
GB
United Kingdom
Prior art keywords
valve
control
pump
slide
signal
Prior art date
1968-11-06
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
GB54371/69A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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.)
1968-11-06
Filing date
1969-11-06
Publication date
1972-10-11
1969-11-06
Application filed by Robert Bosch GmbH
filed
Critical
Robert Bosch GmbH
1972-10-11
Publication of GB1292162A
publication
Critical
patent/GB1292162A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
F15B21/08—Servomotor systems incorporating electrically operated control means
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
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S60/00—Power plants
Y10S60/911—Fluid motor system incorporating electrical system
Abstract
1292162 Controlling fluid-flow electrically ROBERT BOSCH GmbH 6 Nov 1969 [6 Nov 1968] 54371/69 Heading G1N In an arrangement for controlling the flow of pressure medium from a variable stroke pump 11 to a load or loads by electro-hydraulically remotely controlled multiposition valves 13, 14, 15 an error signal derived from the comparison in electrical control device 17 of a signal from generators 22, 23, 24, whose magnitude corresponds to the displacement of the respective control lever 18, 19, 21, with a signal from generator 49, whose magnitude is dependent upon the position of a respective control slide 31 of the valve, is applied to an electrohydraulic setting device on the valve to move the control slide 31 to balance the signals. The control device 17 is in operative connection with a second electrohydraulic setting device 12 arranged to control the pump stroke of the adjustable pump 11 in dependence upon the displacement of the control lever 18, 19, 21. In the neutral position of levers 18, 19, 21 solenoid valve 63 is open and the almost zero delivery from pump 11 flows through changeover valve 61 to return line 52. When any of the levers 18, 19, 21 are displaced an associated cam 25, 26, 27 operates common lever 28 to produce an appropriate signal from generator 29 which via control device 17 closes, solenoid 63 and hence valve 61 so as to build up control pressure in passage 59. At the same time the signal from 29 is compared with the signal from generator 69 on the pump 11 representative of pump stroke and if the lever 18 is moved to the left an error signal is applied from device 17 to open solenoid valve 57 to result in an increase of pump stroke until the signal from 69 balances that from 29. Simultaneously the error signal from device 17 to valve 13 opens solenoid valve 47 and control slide 31 moves to the right to connect the load chamber 32 to inlet chamber 34 and load chamber 33 to return chamber 36. When the signals from generators 49 and 22 balance solenoid valve 47 closes and the slide is locked in the final position. When the lever is moved back towards the neutral position solenoid valves 55 and 45 are opened to decrease the pump stroke and move the slide 31 back to its neutral position, and at the neutral position change-over valve 61 is again opened. The slide 31 can be moved to the left in a similar manner by moving control lever 18 to the left. All the solenoid valves open if the electrical system fails and return device 37 moves slide 31 to its neutral position. In the arrangement of Fig. 2 (not shown) a feed pump is included to supply the control pressure to the setting device and in the arrangement of Fig. 3 (not shown) the control pressure medium is conducted to return line 52 directly by way of the solenoid valves 55, 57 and the change-over valve is omitted.
GB54371/69A
1968-11-06
1969-11-06
Improvements in and relating to the electro-hydraulic remote control of hydraulic multi-position valves
Expired
GB1292162A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19681807171
DE1807171A1
(en)
1968-11-06
1968-11-06
Device for the electro-hydraulic remote control of hydraulic directional control valves
Publications (1)
Publication Number
Publication Date
GB1292162A
true
GB1292162A
(en)
1972-10-11
Family
ID=5712466
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB54371/69A
Expired
GB1292162A
(en)
1968-11-06
1969-11-06
Improvements in and relating to the electro-hydraulic remote control of hydraulic multi-position valves
Country Status (5)
Country
Link
US
(1)
US3589130A
(en)
DE
(1)
DE1807171A1
(en)
FR
(1)
FR2022689A1
(en)
GB
(1)
GB1292162A
(en)
SE
(1)
SE344352B
(en)
Families Citing this family (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2112813C3
(en)
*
1971-03-17
1981-04-30
Robert Bosch Gmbh, 7000 Stuttgart
Electro-hydraulic control device
FR2135038B1
(en)
*
1971-05-03
1976-05-28
Int Harvester Co
DE2343662C2
(en)
*
1973-08-30
1986-04-30
Robert Bosch Gmbh, 7000 Stuttgart
Hydraulic control device
US3962871A
(en)
*
1975-04-30
1976-06-15
Towmotor Corporation
Control means adjustably synchronizing operation of a single pump with a plurality of control valves
JPS5689491A
(en)
*
1979-12-14
1981-07-20
Kobe Steel Ltd
Master slave device
DE3232350A1
(en)
*
1982-04-21
1984-03-01
Mannesmann Rexroth GmbH, 8770 Lohr
Device for actuating a sliding body, in particular the piston-type slide of a directional control valve
DE3214845A1
(en)
*
1982-04-21
1983-11-03
Mannesmann Rexroth GmbH, 8770 Lohr
DEVICE FOR ACTUATING A SLIDING BODY, IN PARTICULAR THE PISTON SLIDER OF A DIRECTIONAL VALVE
DE3447709C1
(en)
*
1984-12-28
1986-04-30
Karl 7298 Loßburg Hehl
Control device for the hydraulic circuit of a plastic injection molding machine
US4738104A
(en)
*
1985-03-23
1988-04-19
Barmag Ag
Hydraulic power system
DE3521815A1
(en)
*
1985-06-19
1987-01-02
Bosch Gmbh Robert
CONTROL DEVICE FOR HYDRAULIC WORKING MACHINES
US4712376A
(en)
*
1986-10-22
1987-12-15
Caterpillar Inc.
Proportional valve control apparatus for fluid systems
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2243364A
(en)
*
1939-10-19
1941-05-27
Bendix Aviat Corp
Liquid pressure remote control system
US2316926A
(en)
*
1941-03-11
1943-04-20
Vickers Inc
Power transmission
US2838908A
(en)
*
1953-06-18
1958-06-17
Daimler Benz Ag
Starting and control system for a power plant
US2977765A
(en)
*
1959-12-23
1961-04-04
Honeywell Regulator Co
Servo motor control apparatus
1968
1968-11-06
DE
DE19681807171
patent/DE1807171A1/en
active
Pending
1969
1969-10-30
US
US872673A
patent/US3589130A/en
not_active
Expired – Lifetime
1969-11-04
FR
FR6937889A
patent/FR2022689A1/fr
not_active
Withdrawn
1969-11-05
SE
SE15173/69A
patent/SE344352B/xx
unknown
1969-11-06
GB
GB54371/69A
patent/GB1292162A/en
not_active
Expired
Also Published As
Publication number
Publication date
SE344352B
(en)
1972-04-10
US3589130A
(en)
1971-06-29
DE1807171A1
(en)
1970-06-18
FR2022689A1
(en)
1970-08-07
Similar Documents
Publication
Publication Date
Title
US3954046A
(en)
1976-05-04
Valve arrangement for controlling a reversible hydraulically operated device
US4066006A
(en)
1978-01-03
Flow regulating system
GB1160619A
(en)
1969-08-06
Adjustable, Metered, Directional Flow Control Arrangement
GB1292162A
(en)
1972-10-11
Improvements in and relating to the electro-hydraulic remote control of hydraulic multi-position valves
US5873244A
(en)
1999-02-23
Positive flow control system
GB1306886A
(en)
1973-02-14
Hydraulic motor control circuit
US4362084A
(en)
1982-12-07
Hydraulic actuator controls
US3191382A
(en)
1965-06-29
Hydraulic system
GB1291888A
(en)
1972-10-04
Improvements in or relating to the electrohydraulic remote control of hydraulic control valves
US3772889A
(en)
1973-11-20
Servo pump having throttled input
GB1396926A
(en)
1975-06-11
Control device for load-independent regulation of hydraulic consumers
US3713291A
(en)
1973-01-30
Multiple pressure fluid system
GB1140221A
(en)
1969-01-15
Improvements in or relating to fluid flow control
US4214506A
(en)
1980-07-29
Hydraulic control arrangement with at least one multiple position valve
GB1273806A
(en)
1972-05-10
Improvements in or relating to the control of water turbines
US3290996A
(en)
1966-12-13
Remote control of fluid valves
GB1182055A
(en)
1970-02-25
Fluid Flow Control Device
GB1070924A
(en)
1967-06-07
Improvements in or relating to fluid controlled safety devices for selector valves
GB1291887A
(en)
1972-10-04
Improvements in or relating to the electrohydraulic remote control of hydraulic valves
US2941515A
(en)
1960-06-21
Dual input servo valve
GB1114810A
(en)
1968-05-22
An improved control valve device for an hydraulic work circuit
US3590577A
(en)
1971-07-06
Transmission creep speed control valve
GB1299386A
(en)
1972-12-13
Hydraulic valve
GB1283994A
(en)
1972-08-02
Electrohydraulic control device for hydraulic operators or loads
GB1180189A
(en)
1970-02-04
Improvements in Fluid-pressure Servo Adjusting Devices
Legal Events
Date
Code
Title
Description
1973-02-21
PS
Patent sealed [section 19, patents act 1949]
1979-06-06
PCNP
Patent ceased through non-payment of renewal fee
