IT1004305B - Perfezionamento nelle valvole di controllo idraulico - Google Patents
Perfezionamento nelle valvole di controllo idraulicoInfo
- Publication number
- IT1004305B IT1004305B IT48016/74A IT4801674A IT1004305B IT 1004305 B IT1004305 B IT 1004305B IT 48016/74 A IT48016/74 A IT 48016/74A IT 4801674 A IT4801674 A IT 4801674A IT 1004305 B IT1004305 B IT 1004305B
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- hydraulic control
- control valves
- valves
- hydraulic
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
- B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
- B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
-
- 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
- Y10T137/86493—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]
-
- 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
- Y10T137/86718—Dividing into parallel flow paths with recombining
- Y10T137/86734—With metering feature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32876073A | 1973-02-01 | 1973-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1004305B true IT1004305B (it) | 1976-07-10 |
Family
ID=23282322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT48016/74A IT1004305B (it) | 1973-02-01 | 1974-01-29 | Perfezionamento nelle valvole di controllo idraulico |
Country Status (9)
Country | Link |
---|---|
US (1) | US3765454A (it) |
JP (1) | JPS49106028A (it) |
BR (1) | BR7400746D0 (it) |
CA (1) | CA991951A (it) |
DE (1) | DE2403430A1 (it) |
ES (1) | ES422788A1 (it) |
FR (1) | FR2216495B1 (it) |
IT (1) | IT1004305B (it) |
SE (1) | SE403398B (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4122867A (en) * | 1975-01-06 | 1978-10-31 | International Harvester Company | Hydraulic valve with open center metering notches |
DE2604108A1 (de) * | 1975-02-04 | 1976-08-05 | Caterpillar Tractor Co | Drosselschlitz fuer einen ventilkolben |
US4230152A (en) * | 1978-01-16 | 1980-10-28 | Fiat-Allis Construction Machinery, Inc. | Multi-function control valve |
JPS5825179B2 (ja) * | 1978-02-17 | 1983-05-26 | トヨタ自動車株式会社 | 絞り制御弁 |
WO1980001940A1 (en) * | 1979-03-05 | 1980-09-18 | Mcwilliams O | Balanced spool valve |
HU180152B (en) * | 1980-07-03 | 1983-02-28 | Danuvia Koezponti Szeszam Es K | Hidraulic apparatus for controlling energy flow |
GB8303407D0 (en) * | 1983-02-08 | 1983-03-16 | Tectron Eng Ltd | Fuel injectors |
US4676351A (en) * | 1986-01-09 | 1987-06-30 | Fiatallis Europe, S.P.A. | Hydraulic operated control system to apply vehicle brakes |
CN104047972B (zh) * | 2014-06-19 | 2017-01-18 | 第一拖拉机股份有限公司 | 轮式拖拉机压力控制阀 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2986165A (en) * | 1956-01-23 | 1961-05-30 | Cleveland Pneumatic Ind Inc | Balanced slide valve |
US3004555A (en) * | 1957-02-19 | 1961-10-17 | Borg Warner | Valves |
DE1120230B (de) * | 1958-05-16 | 1961-12-21 | Karl Marx Stadt Maschf | Steuerschieber mit drehbarem Kolben zur Feinregulierung insbesondere der Bewegung von Arbeitskolben |
US2971536A (en) * | 1958-06-26 | 1961-02-14 | Caterpillar Tractor Co | Hydraulic control valve throttling mechanism |
US3148703A (en) * | 1961-12-15 | 1964-09-15 | Robertshaw Controls Co | Rotary pneumatic pressure divider |
US3176722A (en) * | 1962-08-06 | 1965-04-06 | Borg Warner | Hydraulic valve device |
GB1130898A (en) * | 1964-11-21 | 1968-10-16 | Dowty Hydraulic Units Ltd | Slide valves |
US3507303A (en) * | 1967-07-24 | 1970-04-21 | Sanders Associates Inc | Linear pressure differential valve |
US3556155A (en) * | 1969-01-24 | 1971-01-19 | Caterpillar Tractor Co | Variable flow-modulated valve |
BE759150A (fr) * | 1969-11-19 | 1971-04-30 | Fujitsu Ltd | Soupape pilote rotative |
-
1973
- 1973-02-01 US US00328760A patent/US3765454A/en not_active Expired - Lifetime
- 1973-08-14 CA CA178,776A patent/CA991951A/en not_active Expired
-
1974
- 1974-01-24 DE DE2403430A patent/DE2403430A1/de not_active Withdrawn
- 1974-01-29 IT IT48016/74A patent/IT1004305B/it active
- 1974-01-30 ES ES422788A patent/ES422788A1/es not_active Expired
- 1974-01-31 SE SE7401267A patent/SE403398B/xx unknown
- 1974-01-31 FR FR7403340A patent/FR2216495B1/fr not_active Expired
- 1974-02-01 BR BR746/74A patent/BR7400746D0/pt unknown
- 1974-02-01 JP JP49013575A patent/JPS49106028A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA991951A (en) | 1976-06-29 |
DE2403430A1 (de) | 1974-08-08 |
JPS49106028A (it) | 1974-10-08 |
ES422788A1 (es) | 1976-05-01 |
FR2216495B1 (it) | 1979-10-19 |
BR7400746D0 (pt) | 1974-10-29 |
SE403398B (sv) | 1978-08-14 |
US3765454A (en) | 1973-10-16 |
FR2216495A1 (it) | 1974-08-30 |
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