IT1085242B - Valvola di controllo per pompe o motori a volume variabile - Google Patents
Valvola di controllo per pompe o motori a volume variabileInfo
- Publication number
- IT1085242B IT1085242B IT2482677A IT2482677A IT1085242B IT 1085242 B IT1085242 B IT 1085242B IT 2482677 A IT2482677 A IT 2482677A IT 2482677 A IT2482677 A IT 2482677A IT 1085242 B IT1085242 B IT 1085242B
- Authority
- IT
- Italy
- Prior art keywords
- motors
- control valve
- variable volume
- volume pumps
- pumps
- Prior art date
Links
Classifications
-
- 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
- F16K11/0708—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 comprising means to avoid jamming of the slide or means to modify the flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/002—Hydraulic systems to change the pump delivery
-
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
- F16H61/439—Control of the neutral position, e.g. by zero tilt rotation holding 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
- 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
-
- 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
- Y10T137/8671—With annular passage [e.g., spool]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
- Control Of Fluid Gearings (AREA)
- Servomotors (AREA)
- Multiple-Way Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/730,558 US4050247A (en) | 1976-10-07 | 1976-10-07 | Control valve for variable displacement pump or motor |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1085242B true IT1085242B (it) | 1985-05-28 |
Family
ID=24935843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2482677A IT1085242B (it) | 1976-10-07 | 1977-06-17 | Valvola di controllo per pompe o motori a volume variabile |
Country Status (8)
Country | Link |
---|---|
US (1) | US4050247A (it) |
JP (1) | JPS5346592A (it) |
AR (1) | AR212477A1 (it) |
BR (1) | BR7704327A (it) |
DE (1) | DE2729404A1 (it) |
FR (1) | FR2367200A1 (it) |
GB (1) | GB1530578A (it) |
IT (1) | IT1085242B (it) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4274257A (en) * | 1979-01-08 | 1981-06-23 | Eaton Corporation | Anti-stall controller |
DE2904111C2 (de) * | 1979-02-03 | 1983-03-31 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hydrostatische Lenkeinrichtung |
EP0020063A1 (en) * | 1979-06-04 | 1980-12-10 | Eaton Corporation | Hydrostatic transmission control system and control valve |
US4381702A (en) * | 1980-11-21 | 1983-05-03 | Sundstrand Corporation | Displacement control for a hydraulic pump or motor with failure override |
US4483663A (en) * | 1982-08-23 | 1984-11-20 | Sundstrand Corporation | Output speed droop compensating pump control |
US4745746A (en) * | 1986-08-22 | 1988-05-24 | Sundstrand Corporation | Power control for a hydrostatic transmission |
JP2840671B2 (ja) * | 1987-02-28 | 1998-12-24 | 株式会社島津製作所 | 走行車両用液圧式伝導装置 |
US4845949A (en) * | 1987-11-18 | 1989-07-11 | Shivvers, Inc. | Parking brake for integrated transmission |
US4896506A (en) * | 1987-11-18 | 1990-01-30 | Shivvers, Inc. | Transmission with integrated gear reduction |
US4843817A (en) * | 1987-11-18 | 1989-07-04 | Shivvers, Inc. | Integrated hydraulic transmission |
GB2240609B (en) * | 1990-02-02 | 1993-11-24 | Ferranti Int Plc | Fluid control valve |
US5108267A (en) * | 1991-06-17 | 1992-04-28 | Eaton Corporation | Dual-mode control for hydrostatic transmission |
EP0796999B1 (en) * | 1996-03-19 | 2001-09-26 | Eaton Corporation | Variable displacement pump and remote control system therefor |
US6158969A (en) * | 1999-09-16 | 2000-12-12 | Eaton Corporation | Hydrostatic pump and disable control therefor |
US8647075B2 (en) * | 2009-03-18 | 2014-02-11 | Eaton Corporation | Control valve for a variable displacement pump |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB925060A (en) * | 1960-08-30 | 1963-05-01 | Bendix Corp | Improved servo controlled constant-pressure pump |
US3166891A (en) * | 1963-07-08 | 1965-01-26 | New York Air Brake Co | Hydrostatic transmission |
US3236049A (en) * | 1963-10-24 | 1966-02-22 | Sundstrand Corp | Hydrostatic transmission |
US3359727A (en) * | 1966-04-06 | 1967-12-26 | Sundstrand Corp | Hydrostatic transmission |
FR1528300A (fr) * | 1967-06-20 | 1968-06-07 | Sperry Rand Corp | Soupape distributrice à maintien hydrostatique du tiroir en position concentrique |
US3556155A (en) * | 1969-01-24 | 1971-01-19 | Caterpillar Tractor Co | Variable flow-modulated valve |
US3585797A (en) * | 1969-06-09 | 1971-06-22 | Sundstrand Corp | Hydrostatic transmission displacement control |
DE2047977C3 (de) * | 1970-09-30 | 1974-04-04 | Gebr. Claas Maschinenfabrik Gmbh, 4834 Harsewinkel | Anordnung zum Steuern von regelbaren Hydraulikpumpen |
-
1976
- 1976-10-07 US US05/730,558 patent/US4050247A/en not_active Expired - Lifetime
-
1977
- 1977-06-17 IT IT2482677A patent/IT1085242B/it active
- 1977-06-28 FR FR7719776A patent/FR2367200A1/fr active Granted
- 1977-06-28 AR AR26821577A patent/AR212477A1/es active
- 1977-06-28 GB GB2701977A patent/GB1530578A/en not_active Expired
- 1977-06-29 DE DE19772729404 patent/DE2729404A1/de active Granted
- 1977-06-30 BR BR7704327A patent/BR7704327A/pt unknown
- 1977-06-30 JP JP7724977A patent/JPS5346592A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5346592A (en) | 1978-04-26 |
FR2367200B1 (it) | 1983-04-29 |
GB1530578A (en) | 1978-11-01 |
JPS631467B2 (it) | 1988-01-12 |
FR2367200A1 (fr) | 1978-05-05 |
US4050247A (en) | 1977-09-27 |
DE2729404C2 (it) | 1989-08-24 |
AR212477A1 (es) | 1978-07-14 |
BR7704327A (pt) | 1978-04-25 |
DE2729404A1 (de) | 1978-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950630 |