GB543819A - Improvements in and relating to power transmissions - Google Patents
Improvements in and relating to power transmissionsInfo
- Publication number
- GB543819A GB543819A GB4169/41A GB416941A GB543819A GB 543819 A GB543819 A GB 543819A GB 4169/41 A GB4169/41 A GB 4169/41A GB 416941 A GB416941 A GB 416941A GB 543819 A GB543819 A GB 543819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- barrel
- chambers
- fluid
- balance
- 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
- 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
- F01B3/0055—Valve means, e.g. valve plate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
543,819. Reciprocating pumps for liquids. ARMSTRONG, J. J. V. (Vickers, H. F.). March 28, 1941, No. 4169. [Class 102 (i)] [Also in Group XXIX] In a hydraulic transmission device of tne kind comprising a pump and a motor of the reciprocating piston and rotary valve type an auxiliary bearing surface is provided in connection with the valve which controls the flow of fluid to or from the cylinders of the pistons 24 which are actuated by an adjustable swashplate device. As shown, the pump cylinder barrel 44 is mounted in a yoke 32 adjustable about trunnions 38 forming part of the fluid inlet and outlet, and the barrel is driven from a shaft 16 by means of a rod 52 connected by universal joints 54 to a socket flange 18 and to the barrel the flange being fitted with ball sockets 20 for receiving connecting-rods 22 attached to the pistons 24. The barrel 44 has outlets 50 which register with a pair of segmental inlet and outlet grooves 48 in the valve plate 34 forming part of the yoke 32. The barrel is pressed by a spring plunger into contact with the valve and the structure is designed to constitute a hydraulic balance. To prevent errors due to inaccurate machining which would upset this balance an auxiliary bearing is provided between the face 40 ot the valve and the face of the barrel 44 having the form of a number of segmental pads 56 let into the valve face and formed with depressed parts or chambers 58 forming liquid receiving chambers which are supplied with fluid by a metering device comprising a chamber 70 connected by passages 72, 74, 62, 60 to the chambers 58 and supplied with fluid by a valve 78 controlled by a spring piston 80 connected at one end by a passage 88 to the end of the restrictor passage 72 and at the other end by a passage 86 to the chamber 70. A constant pressure drop is maintained across the restrictor 72 and oil is delivered at a constant minute rate to the chambers 58. The oil has to escape between the surfaces of the valve and barrel and so ensures a constant slight clearance between them which can be adjusted to ensure a hydraulic balance which is restored automatically if upset. The chambers 58 may be fed individually by separate devices, and the invention may balance thrusts in other situations, e.g. between the flange 18 and the thrust bearings 14. The invention may be applied in reversible machines where either port 30 may be the pressure port. Specification 538,746 is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US292563A US2298850A (en) | 1939-08-30 | 1939-08-30 | Pump or motor |
GB4169/41A GB543819A (en) | 1939-08-30 | 1941-03-28 | Improvements in and relating to power transmissions |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US292563A US2298850A (en) | 1939-08-30 | 1939-08-30 | Pump or motor |
GB4169/41A GB543819A (en) | 1939-08-30 | 1941-03-28 | Improvements in and relating to power transmissions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB543819A true GB543819A (en) | 1942-03-13 |
Family
ID=63721121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4169/41A Expired GB543819A (en) | 1939-08-30 | 1941-03-28 | Improvements in and relating to power transmissions |
Country Status (2)
Country | Link |
---|---|
US (1) | US2298850A (en) |
GB (1) | GB543819A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735407A (en) * | 1956-02-21 | Hydraulic motor |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126835A (en) * | 1964-03-31 | Fluid pump | ||
US2733665A (en) * | 1956-02-07 | Klopp | ||
US2465954A (en) * | 1942-11-20 | 1949-03-29 | Denison Eng Co | Hydraulic apparatus |
US2421846A (en) * | 1943-09-27 | 1947-06-10 | Alfons H Neuland | Fluid pressure engine |
US2508309A (en) * | 1945-11-15 | 1950-05-16 | Vickers Inc | Compressor |
US2487617A (en) * | 1946-03-29 | 1949-11-08 | Vickers Inc | Power transmission |
US2640433A (en) * | 1947-06-26 | 1953-06-02 | Ex Cell O Corp | Swash plate pump |
US2834297A (en) * | 1953-02-12 | 1958-05-13 | Vickers Inc | Power transmission |
FR1079367A (en) * | 1954-04-15 | 1954-11-29 | Hydromatic G M B H | Device for throttling the oil between the sliding surfaces of oil actuating mechanisms, in particular between the distribution surfaces of axial and rotary piston actuating mechanisms |
US3073253A (en) * | 1955-03-14 | 1963-01-15 | Daimler Benz Ag | Lubrication system |
US3040672A (en) * | 1955-10-05 | 1962-06-26 | Daimler Benz Ag | Lubricating system for control surfaces of a hydrostatic transmission |
US2972962A (en) * | 1956-07-16 | 1961-02-28 | Oilgear Co | Hydraulic thrust bearing |
US3026814A (en) * | 1956-10-29 | 1962-03-27 | Binhack Josef | Swash-plate pump or motor |
US3046906A (en) * | 1957-05-31 | 1962-07-31 | New York Air Brake Co | Means for counteracting centrifugal force moments in rotary cylinder barrel engines |
US3051093A (en) * | 1957-08-12 | 1962-08-28 | New York Air Brake Co | Valve plate for engine |
US3075778A (en) * | 1958-02-26 | 1963-01-29 | Dowty Hydranlic Units Ltd | High pressure hydraulic pumps or motors |
US3181477A (en) * | 1961-09-14 | 1965-05-04 | Sperry Rand Corp | Power transmission |
US3233555A (en) * | 1962-08-16 | 1966-02-08 | Gunnar A Wahlmark | Variable displacement fluid device |
GB1074386A (en) * | 1964-08-19 | 1967-07-05 | Dowty Technical Dev Ltd | Hydraulic axial piston pumps and motors |
US3371616A (en) * | 1965-06-18 | 1968-03-05 | Gunnar A. Wahlmark | Fluid device |
US3457873A (en) * | 1967-03-20 | 1969-07-29 | Sperry Rand Corp | Pumping chamber decompression |
US3481277A (en) * | 1967-09-28 | 1969-12-02 | Sperry Rand Corp | Power transmission |
US3635126A (en) * | 1969-01-17 | 1972-01-18 | Caterpillar Tractor Co | Hydrostatic button bearings for pumps and motors |
FR2049526A5 (en) * | 1969-06-12 | 1971-03-26 | Peugeot & Renault | |
DE1952472B1 (en) * | 1969-10-17 | 1971-02-11 | Rauch Fa Constantin | Bearing of the drive shaft of hydraulic swiveling drum axial piston machines |
US3726609A (en) * | 1970-01-30 | 1973-04-10 | Applied Power Ind Inc | Load controller |
US3702576A (en) * | 1970-06-02 | 1972-11-14 | Renault | High-pressure multi-cylinder hydraulic machines |
US3739691A (en) * | 1970-08-03 | 1973-06-19 | W Bobier | Fluid device |
FR2135776A5 (en) * | 1971-04-28 | 1972-12-22 | Renault | |
US3779137A (en) * | 1971-09-27 | 1973-12-18 | Gen Motors Corp | Hydrostatic tilt box bearing |
US3980003A (en) * | 1975-02-07 | 1976-09-14 | Caterpillar Tractor Co. | Variable hydrostatic bearing between barrel and head of axial piston units |
US5205124A (en) * | 1992-01-16 | 1993-04-27 | Caterpillar Inc. | Piston motor with starting charge device |
US6196109B1 (en) | 1998-11-16 | 2001-03-06 | Eaton Corporation | Axial piston pump and improved valve plate design therefor |
FI112528B (en) * | 2001-11-05 | 2003-12-15 | Ideachip Oy | Method and apparatus for recirculating leakage oil |
-
1939
- 1939-08-30 US US292563A patent/US2298850A/en not_active Expired - Lifetime
-
1941
- 1941-03-28 GB GB4169/41A patent/GB543819A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735407A (en) * | 1956-02-21 | Hydraulic motor |
Also Published As
Publication number | Publication date |
---|---|
US2298850A (en) | 1942-10-13 |
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