GB1232215A - - Google Patents
Info
- Publication number
- GB1232215A GB1232215A GB1232215DA GB1232215A GB 1232215 A GB1232215 A GB 1232215A GB 1232215D A GB1232215D A GB 1232215DA GB 1232215 A GB1232215 A GB 1232215A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- oil
- unit
- stater
- rotor
- 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
- 230000002706 hydrostatic effect Effects 0.000 abstract 3
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
- F01B3/007—Swash plate
- F01B3/0073—Swash plate swash plate bearing means or driving or driven axis bearing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
- F04B1/2085—Bearings for swash plates or driving axles
Abstract
1232215 Hydraulic reciprocating motors and pumps VON ROLL AG 5 July 1968 [7 July 1967] 32321/68 Heading F1A In a tilted or tilting head hydraulic pump or motor the drive plate is supported by a thrust bearing comprising a roller bearing and a hydrostatic bearing, the hydrostatic bearing being operative when the unit is working at highpressure. As shown in Fig.1, the hydrostatic bearing is formed by oil introduced for the cylinders (not shown) between a stater 14 and a rotor ring 13 by means of a throttle device, Fig. 5, duct 15, and an annular groove 16; the roller bearings 12 are dispersed between rotor rings 13 and 11. When the unit is operating at lowpressure the shear force of the oil exceeds the frictional force of the roller bearings and rotor ring 11 rotates relative to ring 13; at higherpressures, the frictional forces are reversed and ring 11 remains stationary while ring 13 rotates. In a variable unit Fig.2 (not shown) a stater is in the form of a bowl and supports a rotor ring, oil is introduced between their adjacent surfaces via bores having non-return valves, and channels from the external surface of the stater. The throttle device, Fig. 5, comprises a hollow piston 28; having a tapered portion 28, urged towards an infeed 30 by a spring 29. At low operating pressure oil flows into compartment 35 by means of a channel 32, compartment 33, and throughbored unit 34 with little throttling; at higher-pressures the oil undergoes more throttling. A measuring piston Fig.6 (not shown) may be arranged before the piston to reduce the size of spring 29.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH980667A CH461277A (en) | 1967-07-07 | 1967-07-07 | Axial piston unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1232215A true GB1232215A (en) | 1971-05-19 |
Family
ID=4355844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1232215D Expired GB1232215A (en) | 1967-07-07 | 1968-07-05 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3554095A (en) |
| JP (1) | JPS4937205B1 (en) |
| AT (1) | AT298922B (en) |
| CH (1) | CH461277A (en) |
| DE (1) | DE1703538A1 (en) |
| FR (1) | FR1573366A (en) |
| GB (1) | GB1232215A (en) |
| NL (1) | NL6809587A (en) |
| SE (1) | SE344349B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249732A (en) * | 1968-02-05 | 1971-10-13 | Hitachi Ltd | Radial piston type hydraulic pump or motor |
| DE2264909C2 (en) * | 1972-08-16 | 1983-06-23 | Hydromatik Gmbh, 7900 Ulm | Hydrostatically supported slide bearing of the drive flange shaft of a hydrostatic axial piston machine |
| DE2412619A1 (en) * | 1974-03-15 | 1975-09-25 | Linde Ag | BEARING FOR THE DRIVE FLANGE OF AN AXIAL PISTON MACHINE |
| SE461292B (en) * | 1988-11-30 | 1990-01-29 | Volvo Hydraulik Ab | HYDROSTATIC AXIAL PISTON MACHINE |
| JPH0420094U (en) * | 1990-06-12 | 1992-02-19 | ||
| US6288848B1 (en) * | 1996-01-08 | 2001-09-11 | Canon Kabushiki Kaisha | Lens barrel and optical equipment |
| US20100227797A1 (en) * | 2006-02-24 | 2010-09-09 | Axelar Ab | Use of cyclolignans for the treatment of type 2 diabetes and as contraceptives |
| DE102006037690A1 (en) * | 2006-08-11 | 2008-02-14 | Robert Bosch Gmbh | axial piston |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2155455A (en) * | 1932-11-24 | 1939-04-25 | Thoma Hans | Hydraulic motor and pump |
| US2064299A (en) * | 1933-08-09 | 1936-12-15 | Oilgear Co | Pump or motor |
| GB625655A (en) * | 1944-10-30 | 1949-07-01 | Hans Orell | Improvements in or relating to revolving axial piston pumps and liquid pressure engines |
| US2623353A (en) * | 1950-02-01 | 1952-12-30 | Gerard Paul | Combined fluid pressure and mechanical bearing for gas turbine engines |
| US2781775A (en) * | 1950-09-01 | 1957-02-19 | Oilgear Co | Limited capacity check valve |
| FR1142912A (en) * | 1954-01-07 | 1957-09-24 | Vyzk Ustav Obrabecich Stroju | Fluid bearing for guides |
| US2941853A (en) * | 1955-04-22 | 1960-06-21 | Daimler Benz Ag | Thrust bearing |
| GB791992A (en) * | 1955-09-19 | 1958-03-19 | Sundstrand Machine Tool Co | Improvements in or relating to hydraulic pump or motor |
| US2871798A (en) * | 1955-12-07 | 1959-02-03 | Thoma Hans Johannes | Hydraulic power transmissions |
| US3137243A (en) * | 1959-06-05 | 1964-06-16 | Dowty Hydraulic Units Ltd | Hydraulic pumps or motors |
| US3253551A (en) * | 1963-08-16 | 1966-05-31 | Thoma Hans | Axial piston unit |
| US3208395A (en) * | 1963-08-30 | 1965-09-28 | Budzich Tadeusz | Cylinder barrel suspension for fluid pressure energy translating device |
-
1967
- 1967-07-07 CH CH980667A patent/CH461277A/en unknown
-
1968
- 1968-06-06 DE DE19681703538 patent/DE1703538A1/en active Pending
- 1968-06-12 AT AT560268A patent/AT298922B/en not_active IP Right Cessation
- 1968-06-12 SE SE7900/68A patent/SE344349B/xx unknown
- 1968-06-20 JP JP43042861A patent/JPS4937205B1/ja active Pending
- 1968-06-26 FR FR1573366D patent/FR1573366A/fr not_active Expired
- 1968-07-03 US US742396A patent/US3554095A/en not_active Expired - Lifetime
- 1968-07-05 GB GB1232215D patent/GB1232215A/en not_active Expired
- 1968-07-05 NL NL6809587A patent/NL6809587A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT298922B (en) | 1972-05-25 |
| FR1573366A (en) | 1969-07-04 |
| CH461277A (en) | 1968-08-15 |
| SE344349B (en) | 1972-04-10 |
| DE1703538A1 (en) | 1972-01-27 |
| JPS4937205B1 (en) | 1974-10-07 |
| US3554095A (en) | 1971-01-12 |
| NL6809587A (en) | 1969-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |