GB1256798A - - Google Patents
Info
- Publication number
- GB1256798A GB1256798A GB1256798DA GB1256798A GB 1256798 A GB1256798 A GB 1256798A GB 1256798D A GB1256798D A GB 1256798DA GB 1256798 A GB1256798 A GB 1256798A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- stages
- shaft
- casing
- angular displacement
- 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
- 238000006073 displacement reaction Methods 0.000 abstract 7
- 230000035939 shock Effects 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 239000006096 absorbing agent Substances 0.000 abstract 1
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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Motors (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1,256,798. Semi-rotary fluid-driven motors. CITROEN S.A. (AUTOMOBILES CITROEN, BERLIET, PANHARD). March 27, 1969 [March 29, 1968], No.16150/69. Heading F1F. A semi-rotary motor, or actuator, has a vertical shaft 4 extending through units, or "stages", A- -D coupled mechanically in series and hydraulically in parallel with one another, each stage comprising a casing 1 containing an abutment 3 and a sleeve 2 furnished with a vane 2a. The sleeve of the stage D is fixed to the shaft, the sleeves of the other stages being capable of angular displacement relative to the shaft and coupled to the casing of the stage thereabove. Whereas the casing of the stage A is fixed, the casings of the other stages are capable of angular displacement about the shaft, which can turn about its own axis relative to the casing of the stage A. Conduits 5, 6 in the casing of the stage A, conduits 7, 8 in each sleeve, bores 11, 12 in the shaft and annular channels 9, 10, 11a, 12a are provided for admission and discharge of the working fluid to and from chambers 1a, 1b in each stage. Angular displacement of the sleeves relative to the respective casings results in greater angular displacement of the shaft relative to the casing of the stage A, which displacement may exceed 360 degrees, depending upon the number of stages. A second embodiment, Figs. 4 and 5 (not shown), differs chiefly in that the motor is effectively inverted, the shaft (104) being fixed and the casing (101) of the uppermost stage (D 1 ) is coupled to an output gear-wheel (113). Each stage has two diametrically-opposed abutments (103) and two diametrically-opposed vanes (102a) on the sleeve (102). The stages can be actuated independently for one direction of angular displacement and either independently or simultaneously, for the other direction to which end one pair of chambers (101a) in each stage is connected to a respective bore (111) in the shaft and the other pair of chambers (101b) is connected to a common bore (112) in said shaft. The abutments in the various stages span different angles. At least one of the stages may serve as a shock absorber, its respective bore (111) being permanently pressurized. Since such a stage, or stages, can absorb shock in one direction of angular displacement only, one of the stages may be arranged to absorb shock in the other direction. A counter-pressure may be applied to the, or each, shock-absorbing stage through the bore (112) and adjustable valve (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR146488 | 1968-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1256798A true GB1256798A (en) | 1971-12-15 |
Family
ID=8648405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1256798D Expired GB1256798A (en) | 1968-03-29 | 1969-03-27 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3732786A (en) |
DE (1) | DE1915370A1 (en) |
FR (1) | FR1566787A (en) |
GB (1) | GB1256798A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2836647A1 (en) * | 1978-08-22 | 1980-03-06 | Helmut Mackfeld | Piston drive for crane or conveyor - has rotary vane formed radially on rotor ring to move in adjacent pressure space |
GB2119855A (en) * | 1982-04-12 | 1983-11-23 | Moog Inc | Fluid-pressure rotary actuator |
US4538639A (en) * | 1981-06-30 | 1985-09-03 | Fujitsu Fanuc Limited | Robot wrist of an industrial robot |
US4899637A (en) * | 1982-04-12 | 1990-02-13 | Moog Controls Inc. | Oscilatory hydraulic actuators with internal supply, return, and control passageways for multi-axis wrist actuator |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2496185A1 (en) * | 1980-12-16 | 1982-06-18 | Renault | ARTICULATION WITH HYDRAULIC MOTORIZATION |
US4759186A (en) * | 1985-12-26 | 1988-07-26 | Sundstrand Corporation | Self-powered rotary actuator utilizing rotation-generated centrifugal head |
FR2607200B1 (en) * | 1986-11-26 | 1991-09-06 | Applic Mach Motrices | ROTARY PALLET HYDRAULIC ACTUATOR DEVICE, IN PARTICULAR FOR DRIVING AN AIRCRAFT GOVERNOR |
SE508430C2 (en) * | 1995-03-31 | 1998-10-05 | Mecman Ab Rexroth | Storage at the actuator |
FI108076B (en) * | 1999-08-17 | 2001-11-15 | Esko Raikamo | Power unit for setting valves etc. in desired position |
EP2789862B1 (en) * | 2013-04-10 | 2015-11-04 | ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH | Oscillation exciter for construction machines |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2911956A (en) * | 1959-01-07 | 1959-11-10 | Bryant Grinder Corp | Shaft positioner |
US3289544A (en) * | 1964-03-04 | 1966-12-06 | Daniels Dennis | Rotary actuator |
-
1968
- 1968-03-29 FR FR146488A patent/FR1566787A/fr not_active Expired
-
1969
- 1969-03-26 DE DE19691915370 patent/DE1915370A1/en active Pending
- 1969-03-27 GB GB1256798D patent/GB1256798A/en not_active Expired
-
1971
- 1971-05-13 US US00143157A patent/US3732786A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2836647A1 (en) * | 1978-08-22 | 1980-03-06 | Helmut Mackfeld | Piston drive for crane or conveyor - has rotary vane formed radially on rotor ring to move in adjacent pressure space |
US4538639A (en) * | 1981-06-30 | 1985-09-03 | Fujitsu Fanuc Limited | Robot wrist of an industrial robot |
GB2119855A (en) * | 1982-04-12 | 1983-11-23 | Moog Inc | Fluid-pressure rotary actuator |
US4899637A (en) * | 1982-04-12 | 1990-02-13 | Moog Controls Inc. | Oscilatory hydraulic actuators with internal supply, return, and control passageways for multi-axis wrist actuator |
Also Published As
Publication number | Publication date |
---|---|
US3732786A (en) | 1973-05-15 |
FR1566787A (en) | 1969-05-09 |
DE1915370A1 (en) | 1969-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |