GB1394594A - Double-flow hydraulic operating system - Google Patents
Double-flow hydraulic operating systemInfo
- Publication number
- GB1394594A GB1394594A GB4822172A GB4822172A GB1394594A GB 1394594 A GB1394594 A GB 1394594A GB 4822172 A GB4822172 A GB 4822172A GB 4822172 A GB4822172 A GB 4822172A GB 1394594 A GB1394594 A GB 1394594A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- oil
- pump
- conduit
- passes
- Prior art date
- 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
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
- F15B11/16—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1394594 Hydraulic control circuits EATON GmbH 19 Oct 1972 [27 Nov 1971] 48221/72 Heading F1P With valves 17, 21, as shown in Fig. 1, oil from a pump 2 flows through a connection 9 in a valve block 10 and back to a reservoir 6 through a by-pass valve and a line 16, whilst oil from a pump 3 passes through a shift valve 12 via ports 11, 13 and an annular channel 30 and back to the reservoir through a line 14. If the valve 17 is moved to permit a small flow of oil from the pump 2 to a ram 20 via a conduit 19, a slide 29 of valve 12 does not move against the force of a spring 28. An increased flow moves the slide 29 to the Fig. 2, position in which the flow between ports 11, 13 of oil from the pump 3 is blocked. A check valve 8 now opens and oil from the pump 3 passes through the valve 17 and conduit 19 to the valve 12. Depending on the pressure, the oil flows either through an orifice 37 of a throttle valve 36 and then through the conduit 19, or, the valve 36 is moved off its seat against a spring 35 and the oil passes mainly through an annular passage 31 and holes 38 to the conduit 19.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2158870 | 1971-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1394594A true GB1394594A (en) | 1975-05-21 |
Family
ID=5826318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4822172A Expired GB1394594A (en) | 1971-11-27 | 1972-10-19 | Double-flow hydraulic operating system |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4859270A (en) |
DE (1) | DE2158870C2 (en) |
FR (1) | FR2160838B1 (en) |
GB (1) | GB1394594A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2214988A (en) * | 1988-02-13 | 1989-09-13 | Gullick Dobson Ltd | Control system for hydraulic mine roof support |
GB2215700A (en) * | 1988-03-16 | 1989-09-27 | Massey Ferguson Mfg | Hydraulic circuits |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2329328C2 (en) * | 1973-06-08 | 1985-03-28 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Automatic sequence valve |
DE2364282C3 (en) * | 1973-12-22 | 1983-01-13 | O & K Orenstein & Koppel Ag, 1000 Berlin | Circuit arrangement for hydraulic motors |
DE2500863A1 (en) * | 1975-01-10 | 1976-07-15 | Eaton Gmbh | HYDRAULIC SERVO SYSTEM FOR MOBILE WORK MACHINES, IN PARTICULAR PULL-LOADERS |
US4192346A (en) * | 1976-08-25 | 1980-03-11 | Shoketsu Kinzoku Kogyo Kabushiki Kaisha | Control valve |
DE2825578C2 (en) * | 1978-06-10 | 1984-01-26 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Automatic sequence valve for hydraulic systems |
DE3222106A1 (en) * | 1982-06-11 | 1983-12-15 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulic control arrangement |
DE4228599B4 (en) * | 1991-09-11 | 2004-08-19 | Bosch Rexroth Ag | Hydraulic circuit for the supply of several, serially operated consumers of a hydraulically controlled system |
DE19930562A1 (en) * | 1999-07-02 | 2001-01-04 | Still Gmbh | Hydraulic system for an industrial truck |
CN108502816B (en) * | 2018-05-08 | 2023-07-14 | 安徽合力股份有限公司 | Bypass type energy regeneration forklift hydraulic system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US540218A (en) * | 1895-05-28 | Territory |
-
1971
- 1971-11-27 DE DE19712158870D patent/DE2158870C2/en not_active Expired
-
1972
- 1972-10-19 GB GB4822172A patent/GB1394594A/en not_active Expired
- 1972-11-07 FR FR7239291A patent/FR2160838B1/fr not_active Expired
- 1972-11-22 JP JP11668172A patent/JPS4859270A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2214988A (en) * | 1988-02-13 | 1989-09-13 | Gullick Dobson Ltd | Control system for hydraulic mine roof support |
GB2215700A (en) * | 1988-03-16 | 1989-09-27 | Massey Ferguson Mfg | Hydraulic circuits |
Also Published As
Publication number | Publication date |
---|---|
JPS4859270A (en) | 1973-08-20 |
DE2158870C2 (en) | 1973-09-27 |
FR2160838A1 (en) | 1973-07-06 |
FR2160838B1 (en) | 1976-06-04 |
DE2158870B1 (en) | 1973-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1126873A (en) | Improvements in hydraulic supply and control systems | |
GB1400057A (en) | Fluid flow control valve having fluid pressure actuated sealing members | |
GB1488530A (en) | Hydraulic control apparatus | |
GB925689A (en) | Fluid flow divider | |
GB1306886A (en) | Hydraulic motor control circuit | |
GB1387773A (en) | Fluid valve assemblies | |
GB1380226A (en) | Fluid supply apparatus | |
GB1394594A (en) | Double-flow hydraulic operating system | |
GB1233328A (en) | ||
GB929481A (en) | Hydraulic mechanism | |
GB1313876A (en) | Pressure controlled directional systems for fluid motors | |
GB1462921A (en) | Flow-divider valve | |
GB1265544A (en) | ||
GB1427503A (en) | Control system for fluid-driven motors | |
GB1387367A (en) | Control device for an hydraulically actuated implement | |
GB1397700A (en) | Fuel injection system | |
US3227179A (en) | Cartridge valves | |
GB1427466A (en) | Multi-way fluid control valve | |
GB1299658A (en) | Hydraulic flow-operated shut-off device | |
GB1534921A (en) | Flow control device | |
GB971821A (en) | Improvements in or relating to hydraulic control valves | |
ES403323A1 (en) | Hydraulic flow control valve assemblies | |
GB1465714A (en) | Motor vehicle open centre series hydraulic circuit | |
GB1171840A (en) | Control Valve with Lock Out Element. | |
GB1234924A (en) | A control system for a hydraulic control device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |