GB1386971A - Pressure compensated control valve - Google Patents
Pressure compensated control valveInfo
- Publication number
- GB1386971A GB1386971A GB812572A GB812572A GB1386971A GB 1386971 A GB1386971 A GB 1386971A GB 812572 A GB812572 A GB 812572A GB 812572 A GB812572 A GB 812572A GB 1386971 A GB1386971 A GB 1386971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- spool
- inlet
- fluid
- line
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- 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
- Y10T137/5109—Convertible
- Y10T137/5283—Units interchangeable between alternate locations
-
- 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
-
- 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
- Y10T137/87185—Controlled by supply or exhaust valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Safety Valves (AREA)
- Multiple-Way Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
1386971 Valves HYDRAULIC INDUSTRIES Inc 22 Feb 1972 [2 Nov 1971] 8125/72 Heading F2V A reversing valve comprising a spool 24 slidable in a bore for directing fluid from an inlet passage to one of two work ports 27, 28 is provided with a pressure regulating valve 26 in the inlet passage which is actuated by the pressure differential between the portions 31, 33 of the fluid passage from inlet to work port on either side of the spool valve and with an unloading valve 50 between the inlet and a return port which is open when the spool valve is in its neutral position and closes when the spool valve moves to an operating position. The unloading valve is held closed by the inlet fluid in the chamber 58 which is vented by the spool valve through line 65 when required to open. The separate unloading valve enables springs of more suitable strength to be used in the unloading and spool valves. A plurality of spool valves with corresponding pressure regulating valves are shown in Fig. 2 in series with one unloading valve. Lines are arranged such that adjacent flat sides of the various units provide the necessary interconnection. A check valve 34 is provided downstream of the portion 33 of each fluid passage. A line with a check valve may also be provided from the chamber 58 to the fluid passage ports on 31. In a particular "idling" position of the valve spool, the two motor ports may be connected with each other and with a low pressure passage L2 for return fluid. The plungers P in the pressure regulating valves shown in Fig. 2 are all of the priority type which can block fluid flow to the next unit. However, plungers of the parallel type which can never block the flow to the next unit can be used. In Fig. 2 the input line L1 eventually connects to the return line L2. However, the line L1 may be dead-ended. The spool (Fig. 11, not shown) may be provided with internal passages which provide the same connections as aforesaid to operate the valve. A valve 92 and a low pressure relief valve 87 are also provided in the assembly to connect the lines 16, L2 with the inlet 16 and a reservoir, respectively.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19482571A | 1971-11-02 | 1971-11-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1386971A true GB1386971A (en) | 1975-03-12 |
Family
ID=22719038
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3851274A Expired GB1386975A (en) | 1971-11-02 | 1972-02-22 | Hydraulic control valve |
GB550074A Expired GB1386974A (en) | 1971-11-02 | 1972-02-22 | Stop mechanism for fluid flow control valves |
GB812572A Expired GB1386971A (en) | 1971-11-02 | 1972-02-22 | Pressure compensated control valve |
GB549974A Expired GB1386973A (en) | 1971-11-02 | 1972-02-22 | Control valve mechanism |
GB539774A Expired GB1386972A (en) | 1971-11-02 | 1972-02-22 | Valves for controlling flow of pressure fluid |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3851274A Expired GB1386975A (en) | 1971-11-02 | 1972-02-22 | Hydraulic control valve |
GB550074A Expired GB1386974A (en) | 1971-11-02 | 1972-02-22 | Stop mechanism for fluid flow control valves |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB549974A Expired GB1386973A (en) | 1971-11-02 | 1972-02-22 | Control valve mechanism |
GB539774A Expired GB1386972A (en) | 1971-11-02 | 1972-02-22 | Valves for controlling flow of pressure fluid |
Country Status (4)
Country | Link |
---|---|
US (1) | US3722543A (en) |
JP (3) | JPS587844B2 (en) |
DE (1) | DE2252772A1 (en) |
GB (5) | GB1386975A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108953684A (en) * | 2018-07-16 | 2018-12-07 | 中国科学院力学研究所 | A kind of more valve positions of hydraulic control and multithread to controllable triple valve |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818936A (en) * | 1972-06-15 | 1974-06-25 | Monarch Road Machinery Co | Hydraulic control valve |
DE2303286C2 (en) * | 1973-01-24 | 1982-03-11 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulic control device |
US3991787A (en) * | 1973-02-21 | 1976-11-16 | Caterpillar Tractor Co. | Modulation control valve for hydraulically operated winch |
JPS5642763B2 (en) * | 1973-04-11 | 1981-10-07 | ||
US3874405A (en) * | 1973-08-24 | 1975-04-01 | Moog Inc | Multiple tow-stage electrohydraulic servovalve apparatus |
US3878679A (en) * | 1973-08-30 | 1975-04-22 | Gen Signal Corp | Compensated multi-function hydraulic system |
US3934742A (en) * | 1973-12-26 | 1976-01-27 | Hydraulic Industries, Inc. | Valve mechanism for automatic control of a number of fluid motors |
US4062374A (en) * | 1974-05-08 | 1977-12-13 | Sperry Rand Limited | Hydraulic valves and hydraulic systems |
US3937129A (en) * | 1974-10-23 | 1976-02-10 | The Scott & Fetzer Company | Load responsive system with area change flow extender |
US3980095A (en) * | 1975-02-10 | 1976-09-14 | Mcavoy Dennis J | Power transmission |
DE2506923C3 (en) * | 1975-02-19 | 1983-01-27 | Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München | Valve device |
US4122677A (en) * | 1975-03-19 | 1978-10-31 | Tadeusz Budzich | Load responsive valve assemblies |
US4058140A (en) * | 1975-03-19 | 1977-11-15 | Tadeusz Budzich | Load responsive fluid control valves |
US3989062A (en) * | 1975-05-09 | 1976-11-02 | Hydraulic Industries, Inc. | Source fluid supply and pressure control system for hydraulic motors |
US4036245A (en) * | 1975-12-29 | 1977-07-19 | Sundstrand Corporation | Pressure compensated hydraulic control valve |
FR2346582A1 (en) * | 1976-04-02 | 1977-10-28 | Bouteille Daniel | PERFECTED DISTRIBUTION DEVICE FOR PNEUMATIC INSTALLATION |
US4022022A (en) * | 1976-04-26 | 1977-05-10 | Parker-Hannifin Corporation | Hydraulic system and control valve assembly therefor |
US4165761A (en) * | 1976-07-27 | 1979-08-28 | Tadeusz Budzich | Load responsive fluid control valves |
US4147178A (en) * | 1976-08-20 | 1979-04-03 | Tadeusz Budzich | Load responsive valve assemblies |
DE2701509C2 (en) * | 1977-01-15 | 1985-10-31 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulic control device for at least two hydraulic consumers |
US4215720A (en) * | 1978-10-02 | 1980-08-05 | General Signal Corporation | Fluid control valve system |
DE3308576A1 (en) * | 1983-03-10 | 1984-09-13 | Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München | CONTROL VALVE DEVICE |
DE3461554D1 (en) * | 1983-09-20 | 1987-01-15 | Heilmeier & Weinlein | Hydraulic device |
JPS6129170U (en) * | 1984-07-25 | 1986-02-21 | 内田油圧機器工業株式会社 | Pressure selection device in multiple valves |
JPS6129171U (en) * | 1984-07-25 | 1986-02-21 | 内田油圧機器工業株式会社 | Pressure selection device in multiple valves |
US4694858A (en) * | 1984-12-19 | 1987-09-22 | General Signal Corporation | Hydraulic control valve |
DE3505623A1 (en) * | 1985-02-19 | 1986-08-21 | Robert Bosch Gmbh, 7000 Stuttgart | HYDRAULIC DIRECTION VALVE FOR A LOAD PRESSURE COMPENSATED CONTROL |
DE3603811C2 (en) * | 1986-02-07 | 1995-12-21 | Bosch Gmbh Robert | Hydraulic directional valve |
DE3634728A1 (en) * | 1986-10-11 | 1988-04-21 | Rexroth Mannesmann Gmbh | VALVE ARRANGEMENT FOR LOAD-INDEPENDENT CONTROL OF SEVERAL SIMPLY ACTUATED HYDRAULIC CONSUMERS |
US5368061A (en) * | 1987-01-29 | 1994-11-29 | Mollo; James R. | Load sensed variable discharge fixed displacement pump control with low unload features |
US5487403A (en) * | 1987-01-29 | 1996-01-30 | Mollo; James R. | Variable discharge pump with low unload to secondary |
US5515879A (en) * | 1987-01-29 | 1996-05-14 | Mollo; James R. | Load sensed multi-purpose pressure control valve |
US4757685A (en) * | 1987-08-24 | 1988-07-19 | Caterpillar Inc. | Pressure responsive hydraulic control circuit |
US4889161A (en) * | 1987-10-02 | 1989-12-26 | Applied Power Inc. | Compensated individual segment flow regulator |
EP0433665B1 (en) * | 1989-12-19 | 1994-02-23 | Robert Bosch Gmbh | Hydraulic control valve |
DE4133892C1 (en) * | 1991-10-12 | 1992-12-24 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
KR950704617A (en) * | 1992-10-23 | 1995-11-20 | 가따다 데쯔야 | Pressurized fluid supply system |
JP3534319B2 (en) * | 1993-12-22 | 2004-06-07 | 株式会社小松製作所 | Unloading device used for hydraulic circuit |
US6209580B1 (en) * | 1999-12-14 | 2001-04-03 | Raymond Keith Foster | Multifunction valve assembly |
US6868672B2 (en) * | 2003-05-13 | 2005-03-22 | Sauer-Danfoss, Inc. | Method of controlling a swinging boom and apparatus for controlling the same |
US7059126B2 (en) * | 2003-10-16 | 2006-06-13 | Caterpillar Inc. | System for preventing swing wag for a work machine with a boom assembly |
EP1860327B1 (en) * | 2006-05-26 | 2009-12-02 | Hydrocontrol S.p.A. | Pressure-compensating directional control valve |
JP5498858B2 (en) * | 2010-05-27 | 2014-05-21 | 日立建機株式会社 | Wheel loader |
US9410560B2 (en) | 2012-06-01 | 2016-08-09 | Clark Equipment Company | Control valve assembly |
JP6338428B2 (en) * | 2014-04-11 | 2018-06-06 | Kyb株式会社 | Valve structure |
DE102014216033A1 (en) * | 2014-08-13 | 2016-02-18 | Robert Bosch Gmbh | Adjustable valve end stop with fluid channel during operation |
CN104265712B (en) * | 2014-09-23 | 2016-04-27 | 徐州重型机械有限公司 | A kind of wheeled crane and single cylinder bolt system extension and contraction control valve thereof |
JP6643913B2 (en) * | 2016-02-16 | 2020-02-12 | 株式会社クボタ | Hydraulic block |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3455210A (en) * | 1966-10-26 | 1969-07-15 | Eaton Yale & Towne | Adjustable,metered,directional flow control arrangement |
-
1971
- 1971-11-02 US US00194825A patent/US3722543A/en not_active Expired - Lifetime
-
1972
- 1972-02-22 GB GB3851274A patent/GB1386975A/en not_active Expired
- 1972-02-22 GB GB550074A patent/GB1386974A/en not_active Expired
- 1972-02-22 GB GB812572A patent/GB1386971A/en not_active Expired
- 1972-02-22 GB GB549974A patent/GB1386973A/en not_active Expired
- 1972-02-22 GB GB539774A patent/GB1386972A/en not_active Expired
- 1972-07-07 JP JP47067605A patent/JPS587844B2/en not_active Expired
- 1972-10-27 DE DE2252772A patent/DE2252772A1/en not_active Ceased
-
1977
- 1977-09-06 JP JP10638777A patent/JPS53112381A/en active Pending
- 1977-09-06 JP JP10638877A patent/JPS53112382A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108953684A (en) * | 2018-07-16 | 2018-12-07 | 中国科学院力学研究所 | A kind of more valve positions of hydraulic control and multithread to controllable triple valve |
CN108953684B (en) * | 2018-07-16 | 2020-06-05 | 中国科学院力学研究所 | Controllable three-way valve with multiple hydraulically-controlled valve positions and multiple flow directions |
Also Published As
Publication number | Publication date |
---|---|
GB1386973A (en) | 1975-03-12 |
GB1386974A (en) | 1975-03-12 |
JPS587844B2 (en) | 1983-02-12 |
GB1386975A (en) | 1975-03-12 |
JPS53112381A (en) | 1978-09-30 |
GB1386972A (en) | 1975-03-12 |
US3722543A (en) | 1973-03-27 |
DE2252772A1 (en) | 1973-05-10 |
JPS4853320A (en) | 1973-07-26 |
JPS53112382A (en) | 1978-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |