GB1115744A - - Google Patents
Info
- Publication number
- GB1115744A GB1115744A GB1794165A GB1794165A GB1115744A GB 1115744 A GB1115744 A GB 1115744A GB 1794165 A GB1794165 A GB 1794165A GB 1794165 A GB1794165 A GB 1794165A GB 1115744 A GB1115744 A GB 1115744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- swash
- cylinders
- bores
- balancing
- 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
- 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
- F04B1/14—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 stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
- F04B1/148—Bearings therefor
-
- 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
- F04B1/14—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 stationary cylinders
-
- 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
- F04B1/14—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 stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
-
- 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
- F04B1/14—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 stationary cylinders
- F04B1/18—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 stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
1, 115, 744. Swash-plate pumps. R. LEDUC and G. LEDUC. April 28, 1965 [April 28, 1964; Aug.19, 1964; March 1, 1965], No.17941/65. Heading F1A. In a swash-plate pump the axial forces acting on the swash-plate 5 due to the discharge pressures in the cylinders 10 are balanced by means balancing pistons 21 subject to the discharge pressures in respective cylinders. Pairs of connecting balancing piston bores 20 are connected by conduits 26 to each cylinder 10 and the sum of the cross-sectional areas of the bores is equal to the cross-sectional area of the cylinder, the centre of area of the bores being on the axis of the cylinder. The supply of liquid to the cylinders is controlled by an arcuate recess 28 in the face 9 of the swash-plate connected to a recess 29 in the centre of the plate. In a further embodiment, Figs. 5 and 6 (not shown), slippers (33) are provided between the balancing pistons (31) and the rear face of the swash-plate. The rear face is slightly oblique and the balancing pistons provide additional delivery. Liquid is fed to bores (20) of the balancing pistons (31) through an auxiliary arcuate recess (34) in the rear face of the swash-plate communicating with the recess (28) in the front face. In another embodiment, Figs. 7 and 8 (not shown), there are equal numbers of pump plungers (11) and balancing pistons (31) and the plunger cylinders communicate with the piston bores through passages (46) extending through the swash-plate. In this embodiment six pump cylinders are provided and three communicate with one outlet (49) and three with a second outlet (50). Reference has been directed by the Comptroller to Specification 904, 272.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR972591A FR1409274A (en) | 1964-04-28 | 1964-04-28 | Improvements to hydraulic pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1115744A true GB1115744A (en) | 1968-05-29 |
Family
ID=8828852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1794165A Expired GB1115744A (en) | 1964-04-28 | 1965-04-28 |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1409274A (en) |
GB (1) | GB1115744A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51117203U (en) * | 1975-03-19 | 1976-09-22 | ||
EP0301229A2 (en) * | 1987-07-28 | 1989-02-01 | Hydromatik GmbH | Axial piston machine with a swash-plate with radial bearings |
WO1999014492A1 (en) * | 1997-09-15 | 1999-03-25 | INA Wälzlager Schaeffler oHG | Oscillating bearing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137013A (en) * | 1977-09-22 | 1979-01-30 | The Bendix Corporation | Variable displacement piston pump |
-
1964
- 1964-04-28 FR FR972591A patent/FR1409274A/en not_active Expired
-
1965
- 1965-04-28 GB GB1794165A patent/GB1115744A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51117203U (en) * | 1975-03-19 | 1976-09-22 | ||
EP0301229A2 (en) * | 1987-07-28 | 1989-02-01 | Hydromatik GmbH | Axial piston machine with a swash-plate with radial bearings |
EP0301229A3 (en) * | 1987-07-28 | 1989-08-30 | Hydromatik Gmbh | Axial piston machine with a swash-plate with radial bearings |
WO1999014492A1 (en) * | 1997-09-15 | 1999-03-25 | INA Wälzlager Schaeffler oHG | Oscillating bearing |
DE19881342C1 (en) * | 1997-09-15 | 2001-07-12 | Schaeffler Waelzlager Ohg | Swashplate bearing for plunger pump |
US6357336B1 (en) | 1997-09-15 | 2002-03-19 | Ina Walzlager Schaeffler Ohg | Oscillating bearing |
Also Published As
Publication number | Publication date |
---|---|
FR1409274A (en) | 1965-08-27 |
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