GB1330470A - Oscillatory fluid-pressure-operable machines - Google Patents
Oscillatory fluid-pressure-operable machinesInfo
- Publication number
- GB1330470A GB1330470A GB1330470DA GB1330470A GB 1330470 A GB1330470 A GB 1330470A GB 1330470D A GB1330470D A GB 1330470DA GB 1330470 A GB1330470 A GB 1330470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- casing
- ring
- end wall
- vanes
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C9/00—Oscillating-piston machines or pumps
- F04C9/002—Oscillating-piston machines or pumps the piston oscillating around a fixed axis
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
- Hydraulic Motors (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1330470 Semi rotary actuators DOWTY HYDRAULIC UNITS Ltd 2 Dec 1970 [23 Dec 1969] 62544/69 Heading F1F An oscillatory hydraulic actuator comprising a cylindrical casing 11 through which a shaft 12 passes in bearing bores has one or more vanes 15 fixed to the casing and one or more vanes 16 fixed to the shaft to form chambers 28, 29. Each vane has rubber sealing strips 22, 23 housed in grooves 20, 21 backed up by members 24, 25; 26, 27 to form seals with the casing and shaft respectively and with the casing end wall where a steel sealing ring 36, Fig. 3 is provided to engage in a seating 32. The ring 36 has a small clearance on the shaft 12 and an annular recess 38 in its end wall engaging face 37 and while of similar crosssection to the seating 32 is of slightly larger crosssectional area so that the ring is axially pre-loaded. The arrangement is such that the pressure of the high pressure chamber forces the ring longitudinally of the shaft to form a seal against the end wall while in the low pressure chamber the clearance on the shaft is maintained allowing liquid to enter the zone aided by the recess 38 to spread round the shaft as a lubricant. These conditions apply at all positions of the movable vane.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6254469 | 1969-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1330470A true GB1330470A (en) | 1973-09-19 |
Family
ID=10488239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1330470D Expired GB1330470A (en) | 1969-12-23 | 1969-12-23 | Oscillatory fluid-pressure-operable machines |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4810723B1 (en) |
| DE (1) | DE2063306C3 (en) |
| FR (1) | FR2074152A5 (en) |
| GB (1) | GB1330470A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5336972A (en) * | 1976-09-16 | 1978-04-05 | Hitachi Ltd | Fully automatic washing machine |
-
1969
- 1969-12-23 GB GB1330470D patent/GB1330470A/en not_active Expired
-
1970
- 1970-12-22 DE DE19702063306 patent/DE2063306C3/en not_active Expired
- 1970-12-22 FR FR7046210A patent/FR2074152A5/fr not_active Expired
- 1970-12-23 JP JP11734370A patent/JPS4810723B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4810723B1 (en) | 1973-04-06 |
| FR2074152A5 (en) | 1971-10-01 |
| DE2063306B2 (en) | 1975-02-27 |
| DE2063306A1 (en) | 1971-07-01 |
| DE2063306C3 (en) | 1975-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |