IT1164572B - Perfezionamento nelle valvole idrauliche - Google Patents
Perfezionamento nelle valvole idraulicheInfo
- Publication number
- IT1164572B IT1164572B IT47576/83A IT4757683A IT1164572B IT 1164572 B IT1164572 B IT 1164572B IT 47576/83 A IT47576/83 A IT 47576/83A IT 4757683 A IT4757683 A IT 4757683A IT 1164572 B IT1164572 B IT 1164572B
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- hydraulic valves
- valves
- hydraulic
- Prior art date
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
- 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
- F15B11/162—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
-
- 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
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6052—Load sensing circuits having valve means between output member and the load sensing circuit using check valves
-
- 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
-
- 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
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/388,723 US4519419A (en) | 1982-06-15 | 1982-06-15 | Hydraulic valves |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8347576A0 IT8347576A0 (it) | 1983-01-19 |
IT1164572B true IT1164572B (it) | 1987-04-15 |
Family
ID=23535237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT47576/83A IT1164572B (it) | 1982-06-15 | 1983-01-19 | Perfezionamento nelle valvole idrauliche |
Country Status (10)
Country | Link |
---|---|
US (1) | US4519419A (it) |
JP (1) | JPS58221079A (it) |
AU (1) | AU551975B2 (it) |
BR (1) | BR8207440A (it) |
CA (1) | CA1175730A (it) |
DE (1) | DE3240038A1 (it) |
FR (1) | FR2528518B1 (it) |
GB (1) | GB2121923B (it) |
IT (1) | IT1164572B (it) |
ZA (1) | ZA827447B (it) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60107404U (ja) * | 1983-12-23 | 1985-07-22 | 株式会社 興洋 | 液圧駆動装置における制御装置 |
US4693272A (en) * | 1984-02-13 | 1987-09-15 | Husco International, Inc. | Post pressure compensated unitary hydraulic 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 |
DE3622925C2 (de) * | 1985-07-10 | 1996-09-19 | Linde Ag | Kombiniertes Umschalt- und Druckbegrenzungsventil |
US4709724A (en) * | 1986-01-17 | 1987-12-01 | Commercial Shearing, Inc. | Fluid valve structures |
US4889161A (en) * | 1987-10-02 | 1989-12-26 | Applied Power Inc. | Compensated individual segment flow regulator |
DE3908721A1 (de) * | 1989-03-16 | 1990-09-27 | Heilmeier & Weinlein | Druckwaage |
DE3918926A1 (de) * | 1989-06-09 | 1991-02-14 | Heilmeier & Weinlein | Stromregelventil |
DE59004683D1 (de) * | 1989-12-19 | 1994-03-31 | Bosch Gmbh Robert | Hydraulisches Wegeventil. |
JP3505869B2 (ja) * | 1995-09-14 | 2004-03-15 | 株式会社島津製作所 | 流体制御弁 |
FR2788817B1 (fr) * | 1999-01-26 | 2001-04-06 | Mannesmann Rexroth Sa | Distributeur hydraulique |
EP1069317B1 (de) * | 1999-07-10 | 2003-08-13 | Bosch Rexroth AG | Wegeventilscheibe, insbesondere für ein mobiles Arbeitsgerät |
DE10027382A1 (de) * | 2000-06-02 | 2001-12-06 | Bosch Gmbh Robert | Hydraulische Steuereinrichtung |
US6505645B1 (en) * | 2001-10-08 | 2003-01-14 | Husco International, Inc. | Multiple hydraulic valve assembly with a monolithic block |
US10072765B2 (en) | 2015-07-02 | 2018-09-11 | Caterpillar Inc. | Valve having spool assembly with insert divider |
US9915355B2 (en) | 2015-10-06 | 2018-03-13 | Caterpillar Inc. | Valve having open-center spool with separated inserts |
CN114087410B (zh) * | 2021-12-27 | 2024-04-12 | 利恩(海宁)科技有限公司 | 一种轻量化换向阀阀体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7334274U (de) * | 1973-12-20 | Hoerbiger Hydraulik Kg | Hydraulisches Bauelement | |
US3237531A (en) * | 1964-11-12 | 1966-03-01 | Parker Hannifin Corp | Fluid system and valve assembly therefor |
US3534774A (en) * | 1968-11-14 | 1970-10-20 | Koehring Co | Pressure compensated control valve |
US3774635A (en) * | 1972-04-18 | 1973-11-27 | Sperry Rand Corp | Power transmission |
US3995532A (en) * | 1974-07-15 | 1976-12-07 | Caterpillar Tractor Co. | Proportional control valve with preconditioned inlet modulating relief valve |
DE2556708C2 (de) * | 1975-12-17 | 1983-12-08 | Robert Bosch Gmbh, 7000 Stuttgart | Für die Blockbauweise vorgesehenes Hydrowegeventil |
GB2050574B (en) * | 1979-04-12 | 1983-04-13 | Rubery Owen Hydraulics Ltd | Hydraulic control valves |
US4361169A (en) * | 1979-11-13 | 1982-11-30 | Commercial Shearing, Inc. | Pressure compensated control valves |
US4352375A (en) * | 1980-04-14 | 1982-10-05 | Commercial Shearing, Inc. | Control valves |
-
1982
- 1982-06-15 US US06/388,723 patent/US4519419A/en not_active Expired - Lifetime
- 1982-10-12 ZA ZA827447A patent/ZA827447B/xx unknown
- 1982-10-28 DE DE19823240038 patent/DE3240038A1/de not_active Ceased
- 1982-11-03 CA CA000414739A patent/CA1175730A/en not_active Expired
- 1982-11-15 FR FR8219066A patent/FR2528518B1/fr not_active Expired
- 1982-12-01 GB GB08234208A patent/GB2121923B/en not_active Expired
- 1982-12-22 BR BR8207440A patent/BR8207440A/pt unknown
- 1982-12-31 AU AU91996/82A patent/AU551975B2/en not_active Ceased
-
1983
- 1983-01-19 IT IT47576/83A patent/IT1164572B/it active
- 1983-03-15 JP JP58044022A patent/JPS58221079A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2121923A (en) | 1984-01-04 |
FR2528518B1 (fr) | 1987-03-20 |
US4519419A (en) | 1985-05-28 |
JPH0210282B2 (it) | 1990-03-07 |
IT8347576A0 (it) | 1983-01-19 |
ZA827447B (en) | 1983-09-28 |
BR8207440A (pt) | 1984-04-17 |
AU551975B2 (en) | 1986-05-15 |
FR2528518A1 (fr) | 1983-12-16 |
GB2121923B (en) | 1985-07-31 |
JPS58221079A (ja) | 1983-12-22 |
AU9199682A (en) | 1983-12-22 |
DE3240038A1 (de) | 1983-12-15 |
CA1175730A (en) | 1984-10-09 |
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