WO1995022001A3 - Water pressure pumps and motors - Google Patents
Water pressure pumps and motors Download PDFInfo
- Publication number
- WO1995022001A3 WO1995022001A3 PCT/GB1995/000292 GB9500292W WO9522001A3 WO 1995022001 A3 WO1995022001 A3 WO 1995022001A3 GB 9500292 W GB9500292 W GB 9500292W WO 9522001 A3 WO9522001 A3 WO 9522001A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder block
- outer casing
- output shaft
- drive
- piston
- Prior art date
Links
Classifications
-
- 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
- F04B1/2035—Cylinder barrels
-
- 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
-
- 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
- F04B1/2064—Housings
- F04B1/2071—Bearings for cylinder barrels
Abstract
A water pump or motor comprises an outer casing (1, 2, 3), and a cylinder block (5) which is rotatably mounted within the outer casing (1, 2, 3). A drive/output shaft (4) is connected to the cylinder block (5), and a plurality of piston assemblies (13), each comprising a piston body and a slipper are mounted within respective piston bores in the cylinder block (5). An angled swash plate (8) is fixed relative to the rotatable cylinder block (5) against which the slippers are pre-loaded, and a port plate controls the flow of water to and from each of the piston bores. The cylinder block (5) is connected to the drive/output shaft (4) by de-coupling means (27) so as to enable the cylinder block (5) to float within the outer casing (1, 2, 3) relative to the drive/output shaft (4). A gap or pocket (53) is provided between the outer casing or the cylinder bearing (17) supporting the cylinder block (5) and the cylinder block (5), which pocket (53) is adapted to receive water under pressure. The rubbing surfaces of at least the principal relatively moving components of the pump/motor are comprised, respectively, of hard and soft materials, the soft materials being polymeric materials.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU15878/95A AU1587895A (en) | 1994-02-12 | 1995-02-13 | Water pressure pumps and motors |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9402743.0 | 1994-02-12 | ||
GB9402743A GB9402743D0 (en) | 1994-02-12 | 1994-02-12 | Water pressure pumps and motors |
GB9403232A GB9403232D0 (en) | 1994-02-19 | 1994-02-19 | Water pressure pumps and motors |
GB9403232.3 | 1994-02-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1995022001A2 WO1995022001A2 (en) | 1995-08-17 |
WO1995022001A3 true WO1995022001A3 (en) | 1995-10-12 |
Family
ID=26304319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1995/000292 WO1995022001A2 (en) | 1994-02-12 | 1995-02-13 | Water pressure pumps and motors |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU1587895A (en) |
WO (1) | WO1995022001A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19523828C1 (en) * | 1995-06-30 | 1997-01-16 | Danfoss As | Hydraulic axial piston machine |
JP2000033360A (en) * | 1998-07-17 | 2000-02-02 | Sumitomo Electric Ind Ltd | Method for reusing ceramic parts |
US10309380B2 (en) * | 2011-11-16 | 2019-06-04 | Ocean Pacific Technologies | Rotary axial piston pump |
US10094364B2 (en) | 2015-03-24 | 2018-10-09 | Ocean Pacific Technologies | Banded ceramic valve and/or port plate |
US10138729B2 (en) * | 2016-10-20 | 2018-11-27 | Deere & Company | Drive assembly with pressure force aggregating piston arrangement for hydraulic motor speed/torque selector |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847984A (en) * | 1955-11-07 | 1958-08-19 | Gen Motors Corp | Hydraulic engine-starting device |
US3126835A (en) * | 1964-03-31 | Fluid pump | ||
US3256834A (en) * | 1964-03-16 | 1966-06-21 | Budzich Tadeusz | Piston shoe assemblies |
GB1089818A (en) * | 1963-12-10 | 1967-11-08 | Serck R & D Ltd | Hydraulic machines having reciprocatory pistons |
FR2359997A1 (en) * | 1976-07-26 | 1978-02-24 | Secretary Industry Brit | HYDRAULIC MACHINE WITH AXIAL PISTONS |
WO1993010349A1 (en) * | 1991-11-21 | 1993-05-27 | J.H. Fenner & Co. Limited | Water pumps and motors |
-
1995
- 1995-02-13 WO PCT/GB1995/000292 patent/WO1995022001A2/en active Application Filing
- 1995-02-13 AU AU15878/95A patent/AU1587895A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126835A (en) * | 1964-03-31 | Fluid pump | ||
US2847984A (en) * | 1955-11-07 | 1958-08-19 | Gen Motors Corp | Hydraulic engine-starting device |
GB1089818A (en) * | 1963-12-10 | 1967-11-08 | Serck R & D Ltd | Hydraulic machines having reciprocatory pistons |
US3256834A (en) * | 1964-03-16 | 1966-06-21 | Budzich Tadeusz | Piston shoe assemblies |
FR2359997A1 (en) * | 1976-07-26 | 1978-02-24 | Secretary Industry Brit | HYDRAULIC MACHINE WITH AXIAL PISTONS |
WO1993010349A1 (en) * | 1991-11-21 | 1993-05-27 | J.H. Fenner & Co. Limited | Water pumps and motors |
Also Published As
Publication number | Publication date |
---|---|
WO1995022001A2 (en) | 1995-08-17 |
AU1587895A (en) | 1995-08-29 |
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