CA979786A - Power transmission - Google Patents
Power transmissionInfo
- Publication number
- CA979786A CA979786A CA166,460A CA166460A CA979786A CA 979786 A CA979786 A CA 979786A CA 166460 A CA166460 A CA 166460A CA 979786 A CA979786 A CA 979786A
- Authority
- CA
- Canada
- Prior art keywords
- power transmission
- transmission
- power
- 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
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/163—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation 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
- 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
- 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
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- F15B2211/3053—In combination with a pressure compensating valve
- F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- F15B2211/3053—In combination with a pressure compensating valve
- F15B2211/3055—In combination with a pressure compensating valve the pressure compensating valve is arranged between directional control valve and return line
-
- 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
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- 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
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
-
- 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
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a return line
-
- 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
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
-
- 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
- F15B2211/50—Pressure control
- F15B2211/57—Control of a differential pressure
-
- 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
-
- 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
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/8667—Reciprocating valve
- Y10T137/86694—Piston valve
- Y10T137/86702—With internal flow passage
-
- 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
- Y10T137/877—With flow control means for branched passages
- Y10T137/87829—Biased valve
- Y10T137/87837—Spring bias
- Y10T137/87845—For valve having a ball head
-
- 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
- Y10T137/877—With flow control means for branched passages
- Y10T137/87885—Sectional block structure
-
- 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
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/88054—Direct response normally closed valve limits direction of flow
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Multiple-Way Valves (AREA)
- Safety Valves (AREA)
- Valve Housings (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN2141/CAL/73A IN138725B (it) | 1973-03-20 | 1973-09-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24510372A | 1972-04-18 | 1972-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA979786A true CA979786A (en) | 1975-12-16 |
Family
ID=22925300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA166,460A Expired CA979786A (en) | 1972-04-18 | 1973-03-20 | Power transmission |
Country Status (9)
Country | Link |
---|---|
US (1) | US3774635A (it) |
JP (1) | JPS5316527B2 (it) |
AU (1) | AU476156B2 (it) |
CA (1) | CA979786A (it) |
DE (1) | DE2319018C3 (it) |
FR (1) | FR2180912B1 (it) |
GB (1) | GB1424574A (it) |
IT (1) | IT979832B (it) |
SE (1) | SE392750B (it) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3976098A (en) * | 1974-01-02 | 1976-08-24 | International Basic Economy Corporation | Hydraulic motor control apparatus |
US4187877A (en) * | 1975-01-13 | 1980-02-12 | Commercial Shearing Inc. | Compensated work port fluid valves |
US4087972A (en) * | 1976-08-02 | 1978-05-09 | The Weatherhead Company | Brake booster with spring type ratio changer |
DE2943256A1 (de) * | 1979-10-26 | 1981-05-07 | Erwin Hengstler Hydraulik GmbH, 7613 Hausach | Elektrohydraulische steuerung |
FI74333C (fi) * | 1980-11-27 | 1988-01-11 | Vapormatic Co Ltd | Vaeljarventilenhet foer hydraulsystemet i en lantbrukstraktor. |
US4555766A (en) * | 1981-10-09 | 1985-11-26 | General Signal Corporation | Brake control system for vehicles |
US4519419A (en) * | 1982-06-15 | 1985-05-28 | Commercial Shearing, Inc. | Hydraulic valves |
US4520841A (en) * | 1983-12-27 | 1985-06-04 | Glen Brand | Four-way valve |
FR2562632B1 (fr) * | 1984-04-18 | 1986-12-12 | Bennes Marrel | Distributeur hydraulique du type proportionnel, avec prise d'informations concernant les plus fortes pressions dans les circuits d'utilisation |
JPS62151403U (it) * | 1986-03-18 | 1987-09-25 | ||
US4724673A (en) * | 1986-06-30 | 1988-02-16 | Vickers, Incorporated | Power transmission |
US4679492A (en) * | 1986-07-21 | 1987-07-14 | Caterpillar Inc. | Compensated fluid flow control valve |
US4665801A (en) * | 1986-07-21 | 1987-05-19 | Caterpillar Inc. | Compensated fluid flow control valve |
US4688470A (en) * | 1986-07-21 | 1987-08-25 | Caterpillar Inc. | Compensated fluid flow control valve |
US4694731A (en) * | 1986-12-22 | 1987-09-22 | Caterpillar Inc. | Load compensated valve |
US4741248A (en) * | 1987-05-08 | 1988-05-03 | Caterpillar Inc. | Load responsive system having synchronizing systems between positive and negative load compensation |
EP0310454B1 (en) * | 1987-10-02 | 1994-08-24 | Applied Power Inc. | Compensated individual segment flow regulator |
DE3833999A1 (de) * | 1988-10-06 | 1990-04-12 | Bosch Gmbh Robert | Hydraulische steuereinrichtung |
EP0425684B1 (en) * | 1989-03-24 | 1994-12-14 | Hitachi Construction Machinery Co., Ltd. | Valve apparatus and hydraulic drive system |
FR2694964B1 (fr) * | 1992-08-21 | 1994-11-04 | Rexroth Sigma | Circuit hydraulique de commande d'un distributeur du type à division de débit indépendant de la charge. |
US6148856A (en) * | 1998-03-19 | 2000-11-21 | Linde Aktiengesellschaft | Control valve |
DE19829530B4 (de) * | 1998-07-02 | 2005-01-20 | Hoerbiger Micro Fluid Gmbh | Ventilanordnung |
FR2857704B1 (fr) * | 2003-07-16 | 2007-12-28 | Bosch Rexroth Dsi Sas | Distributeur hydraulique a fentes de couple |
JP4719450B2 (ja) * | 2004-11-08 | 2011-07-06 | 株式会社豊田自動織機 | 油圧制御装置、及び油圧回路 |
US20160201297A1 (en) * | 2013-08-13 | 2016-07-14 | Volvo Construction Equipment Ab | Flow control valve for construction equipment |
CN104197046B (zh) * | 2014-09-11 | 2016-10-05 | 宁波市博尔法液压有限公司 | 一种带卸荷保护的多路阀 |
CN110778555B (zh) * | 2019-10-31 | 2021-03-05 | 徐州阿马凯液压技术有限公司 | 一种嵌入式压力补偿阀杆 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2586932A (en) * | 1949-07-25 | 1952-02-26 | Vickers Inc | Power transmission |
US2980136A (en) * | 1959-06-25 | 1961-04-18 | Cessna Aircraft Co | Hydraulic flow control system and valve with anti-cavitation feature |
BE630251A (it) * | 1962-03-30 | 1900-01-01 | ||
US3266520A (en) * | 1964-07-15 | 1966-08-16 | Fluid Power Accessories Inc | Hydraulic valves |
FR1545439A (fr) * | 1966-12-13 | 1968-11-08 | Beringer Hydraulik Gmbh | Dispositif de commande pour installations fonctionnant par voie hydraulique |
US3506031A (en) * | 1967-10-06 | 1970-04-14 | Parker Hannifin Corp | Relief-makeup check assembly for directional control valves |
FR1585677A (it) * | 1968-09-10 | 1970-01-30 | ||
US3557824A (en) * | 1968-11-01 | 1971-01-26 | Cessna Aircraft Co | Spool control valve |
-
1972
- 1972-04-18 US US00245103A patent/US3774635A/en not_active Expired - Lifetime
-
1973
- 1973-03-07 AU AU53019/73A patent/AU476156B2/en not_active Expired
- 1973-03-13 IT IT48785/73A patent/IT979832B/it active
- 1973-03-20 CA CA166,460A patent/CA979786A/en not_active Expired
- 1973-03-30 JP JP3660273A patent/JPS5316527B2/ja not_active Expired
- 1973-04-14 DE DE2319018A patent/DE2319018C3/de not_active Expired
- 1973-04-16 GB GB1820673A patent/GB1424574A/en not_active Expired
- 1973-04-16 SE SE7305404A patent/SE392750B/xx unknown
- 1973-04-17 FR FR7313976A patent/FR2180912B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2319018B2 (de) | 1978-09-21 |
SE392750B (sv) | 1977-04-18 |
AU476156B2 (en) | 1976-09-16 |
DE2319018A1 (de) | 1973-10-25 |
IT979832B (it) | 1974-09-30 |
FR2180912B1 (it) | 1978-12-01 |
DE2319018C3 (de) | 1982-10-28 |
GB1424574A (en) | 1976-02-11 |
JPS5316527B2 (it) | 1978-06-01 |
AU5301973A (en) | 1974-09-12 |
FR2180912A1 (it) | 1973-11-30 |
JPS4919282A (it) | 1974-02-20 |
US3774635A (en) | 1973-11-27 |
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