GB1071299A - Hydraulic jack - Google Patents
Hydraulic jackInfo
- Publication number
- GB1071299A GB1071299A GB1909/66A GB190966A GB1071299A GB 1071299 A GB1071299 A GB 1071299A GB 1909/66 A GB1909/66 A GB 1909/66A GB 190966 A GB190966 A GB 190966A GB 1071299 A GB1071299 A GB 1071299A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- passages
- chamber
- rod
- jan
- 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
- 239000012530 fluid Substances 0.000 abstract 2
- 230000007935 neutral effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
-
- 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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
- F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same 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
- Y10T137/86919—Sequentially closing and opening alternately seating flow controllers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Manipulator (AREA)
Abstract
1,071,299. Fluid pressure servomotor systems. RECHERCHES ETUDES PRODUCTION R.E.P. Jan. 14, 1966 [Jan. 19, 1965], No. 1909/66. Heading G3P. A hydraulic jack comprises a fixed piston 2 and a movable cylinder 1, the latter housing a hollow spool valve T which is slidable on a guide rod 5 under the control of a manual operating lever 4. In the neutral position shown, jack chambers 17, 19 communicate with exhaust port 24 via passages &c. 16, 14, 20 and 22 and 18, 15, 21 and 23 respectively. When valve T is moved to the right, grooves 15, 21 are cut off from each other and a shoulder 25 on rod 5 unseats a valve 12 which is one of a pair of such valves 11, 12 located in a chamber 8 in valve T, thereby admitting fluid from an inlet 10 to chamber 19 via chamber 8 and passages 7, 18. Consequent rightward movement of cylinder 1 reseats valve 12 and brings grooves 15, 21 back into communication with each other. A similar sequence occurs when valve T is moved to the left. A shoulder defined by diameters d2, d3 is provided at each end of rod 5 and the spaces 27, 28 there around communicate with passages 6, 7 via longitudinal passages 29, 30. These shoulders provide "feel" for the operator. A force providing "feel" is also generated on valves 11, 12.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2464A FR1433397A (en) | 1965-01-19 | 1965-01-19 | Hydraulic servo control |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1071299A true GB1071299A (en) | 1967-06-07 |
Family
ID=8568654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1909/66A Expired GB1071299A (en) | 1965-01-19 | 1966-01-14 | Hydraulic jack |
Country Status (4)
Country | Link |
---|---|
US (1) | US3352210A (en) |
DE (1) | DE1576146B1 (en) |
FR (1) | FR1433397A (en) |
GB (1) | GB1071299A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561731A (en) * | 1969-01-24 | 1971-02-09 | William A Rogers | Valve with improved seal assembly |
DE2025664B2 (en) * | 1970-05-26 | 1975-08-21 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Hydraulic booster control |
DE2223995B2 (en) * | 1972-05-17 | 1981-05-14 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulic ram proportional control system - has variable throttle adjusted by ram piston |
JPS5383234A (en) * | 1976-12-28 | 1978-07-22 | Atsugi Motor Parts Co Ltd | Servo valve for booster of power steering system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR758143A (en) * | 1933-07-07 | 1934-01-11 | Freins Jourdain Monneret | Power steering intended in particular for heavy motor vehicles |
US2919681A (en) * | 1955-06-13 | 1960-01-05 | Bendix Aviat Corp | Reaction limit control valve |
DE1074421B (en) * | 1956-07-18 | 1960-01-28 | Bendix Aviation Corporation New York N Y (V St A) | Distribution valve for a hydraulic servo system, especially for the steering of a motor vehicle |
US2985146A (en) * | 1957-01-03 | 1961-05-23 | Hamill Markus Ind Inc | Control valve adapted for vacuumpower steering use |
FR1295534A (en) * | 1961-04-27 | 1962-06-08 | Rech Etudes Prod | Hydraulic servo control |
US3152610A (en) * | 1961-09-11 | 1964-10-13 | New York Air Brake Co | Hydraulic device |
-
1965
- 1965-01-19 FR FR2464A patent/FR1433397A/en not_active Expired
- 1965-04-29 DE DE19651576146 patent/DE1576146B1/en active Pending
-
1966
- 1966-01-12 US US520176A patent/US3352210A/en not_active Expired - Lifetime
- 1966-01-14 GB GB1909/66A patent/GB1071299A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1576146B1 (en) | 1970-09-10 |
US3352210A (en) | 1967-11-14 |
FR1433397A (en) | 1966-04-01 |
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