GB1031735A - Improvements in or relating to hydraulic pumps and motors - Google Patents
Improvements in or relating to hydraulic pumps and motorsInfo
- Publication number
- GB1031735A GB1031735A GB5372965A GB5372965A GB1031735A GB 1031735 A GB1031735 A GB 1031735A GB 5372965 A GB5372965 A GB 5372965A GB 5372965 A GB5372965 A GB 5372965A GB 1031735 A GB1031735 A GB 1031735A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recesses
- valve plate
- cylinder block
- leakage
- grooves
- 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
-
- 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
- F01B3/0047—Particularities in the contacting area between cylinder barrel and valve plate
-
- 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
- F01B3/0052—Cylinder barrel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
1,031,735. Hydrostatic transmissions. C. VAN DER LELY N.V. Jan. 8, 1963 [Oct. 11, 1962], No. 53729/65. Divided out of 1,031,731. Heading F2C. [Also in Division F1 In a pump or motor for a hydrostatic transmission, comprising a relatively rotatable cylinder block and valve plate, recesses 75 to 81 are provided in the cylinder block face and cooperate with recesses in the valve plate face (Fig. 4, not shown), the valve plate recesses being supplied with liquid from the valve plate kidney ports to provide hydraulic balancing, and recesses 75 to 81 beng shaped as shown to reduce the risk of the recesses being brought into communication with each other in the event of scratching of the cylinder block surface. Arcuate leakage grooves are formed in the valve plate surface between the recesses and the kidney ports, the ends of the grooves being connected by straight, relatively narrow channels. A leakage-collecting recess is provided at the centre of the valve plate surface.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL284266 | 1962-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1031735A true GB1031735A (en) | 1966-06-02 |
Family
ID=19754166
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5373065A Expired GB1031736A (en) | 1962-10-11 | 1963-01-08 | Improvements in or relating to hydraulic pumps and motors |
GB5372965A Expired GB1031735A (en) | 1962-10-11 | 1963-01-08 | Improvements in or relating to hydraulic pumps and motors |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5373065A Expired GB1031736A (en) | 1962-10-11 | 1963-01-08 | Improvements in or relating to hydraulic pumps and motors |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1728354A1 (en) |
GB (2) | GB1031736A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2440155A (en) * | 2006-07-18 | 2008-01-23 | Agco Gmbh | An axial piston pump or machine of the swashplate or bent axis type |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5878649A (en) * | 1998-04-07 | 1999-03-09 | Caterpillar Inc. | Controlled porting for a pressure transformer |
-
1963
- 1963-01-08 GB GB5373065A patent/GB1031736A/en not_active Expired
- 1963-01-08 GB GB5372965A patent/GB1031735A/en not_active Expired
- 1963-01-09 DE DE19631728354 patent/DE1728354A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8128380B2 (en) | 2006-06-18 | 2012-03-06 | Agco Gmbh | Axial piston pump or motor of the swashplate or bent axis type |
GB2440155A (en) * | 2006-07-18 | 2008-01-23 | Agco Gmbh | An axial piston pump or machine of the swashplate or bent axis type |
Also Published As
Publication number | Publication date |
---|---|
DE1728354A1 (en) | 1971-01-21 |
GB1031736A (en) | 1966-06-02 |
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