FR1398439A - Perfectionnements aux circuits hydrauliques de vérins - Google Patents
Perfectionnements aux circuits hydrauliques de vérinsInfo
- Publication number
- FR1398439A FR1398439A FR977892A FR977892A FR1398439A FR 1398439 A FR1398439 A FR 1398439A FR 977892 A FR977892 A FR 977892A FR 977892 A FR977892 A FR 977892A FR 1398439 A FR1398439 A FR 1398439A
- Authority
- FR
- France
- Prior art keywords
- cylinders
- hydraulic circuits
- hydraulic
- circuits
- 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
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7609—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
- E02F3/7618—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers with the scraper blade adjustable relative to the pivoting arms about a horizontal axis
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
- E02F3/844—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US287424A US3184920A (en) | 1963-06-12 | 1963-06-12 | Leakage control for bulldozer pitch jack circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1398439A true FR1398439A (fr) | 1965-05-07 |
Family
ID=23102844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR977892A Expired FR1398439A (fr) | 1963-06-12 | 1964-06-11 | Perfectionnements aux circuits hydrauliques de vérins |
Country Status (3)
Country | Link |
---|---|
US (1) | US3184920A (fr) |
FR (1) | FR1398439A (fr) |
GB (1) | GB1010045A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2414593A1 (fr) * | 1978-01-13 | 1979-08-10 | Massey Ferguson Services Nv | Dispositif de reglage de la lame d'un engin de terrassement |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967532A (en) * | 1974-01-07 | 1976-07-06 | Caterpillar Tractor Co. | Forward-reverse valve for elevating scraper drive |
US4086843A (en) * | 1977-02-17 | 1978-05-02 | Caterpillar Tractor Co. | Tilt tip circuit with bypass valve |
DE3333688A1 (de) * | 1983-09-17 | 1985-03-28 | P.A. Rentrop Hubbert & Wagner Fahrzeugausstattungen GmbH & Co KG, 3060 Stadthagen | Hydraulisch betaetigbare druckzylinderanordnung |
GB2165815B (en) | 1984-10-19 | 1987-10-14 | Didsbury Engineering Co Ltd | Load-handling apparatus |
US4976336A (en) * | 1988-09-13 | 1990-12-11 | Derlan Manufacturing Inc. | Lifting apparatus and lifting arm assembly for use therein |
US5072649A (en) * | 1991-01-07 | 1991-12-17 | Laghi Aldo A | Double actuator with bypass lines for synchronized movement |
DE20106511U1 (de) * | 2001-04-14 | 2001-08-02 | Festo Ag & Co | Ventileinheit mit entsperrbarem Rückschlagventil und damit ausgestatteter fluidbetätigter Antrieb |
FR2864178B1 (fr) * | 2003-12-23 | 2006-02-17 | Giat Ind Sa | Dispositif de commande en position d'un actionneur hydraulique et plaque interface de servovalve mettant en oeuvre un tel dispositif |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573943A (en) * | 1948-04-10 | 1951-11-06 | Int Harvester Co | Telemeter type hydraulic power transmitting system |
GB745600A (en) * | 1953-11-17 | 1956-02-29 | Dowty Hydraulic Units Ltd | Improvements in manually operable hydraulic actuators |
-
1963
- 1963-06-12 US US287424A patent/US3184920A/en not_active Expired - Lifetime
-
1964
- 1964-06-02 GB GB22725/64A patent/GB1010045A/en not_active Expired
- 1964-06-11 FR FR977892A patent/FR1398439A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2414593A1 (fr) * | 1978-01-13 | 1979-08-10 | Massey Ferguson Services Nv | Dispositif de reglage de la lame d'un engin de terrassement |
Also Published As
Publication number | Publication date |
---|---|
US3184920A (en) | 1965-05-25 |
GB1010045A (en) | 1965-11-17 |
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