GB1031731A - Improvements in or relating to hydraulic pumps and motors - Google Patents

Improvements in or relating to hydraulic pumps and motors

Info

Publication number
GB1031731A
GB1031731A GB89163A GB89163A GB1031731A GB 1031731 A GB1031731 A GB 1031731A GB 89163 A GB89163 A GB 89163A GB 89163 A GB89163 A GB 89163A GB 1031731 A GB1031731 A GB 1031731A
Authority
GB
United Kingdom
Prior art keywords
valve
valve plate
valve plates
jan
pump
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
Application number
GB89163A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C Van der Lely NV
Original Assignee
C Van der Lely NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by C Van der Lely NV filed Critical C Van der Lely NV
Publication of GB1031731A publication Critical patent/GB1031731A/en
Expired legal-status Critical Current

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
    • F01B3/10—Control of working-fluid admission or discharge peculiar thereto
    • F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
    • F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate
    • F01B3/107—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate using wedges
    • 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
    • F01B3/0041—Arrangements for pressing the cylinder barrel against the valve plate, e.g. fluid pressure
    • 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
    • F01B3/0055—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
    • F01B3/007—Swash plate
    • F01B3/0073—Swash plate swash plate bearing means or driving or driven axis bearing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

1,031,731. Hydrostatic transmissions. C. VAN DER LELY N.V. Jan. 8, 1963 [Jan. 26, 1962; Oct. 11, 1962], No. 891/63. Heading F2C. [Also in Division F1] In a hydrostatic transmission comprising a swash-plate pump and motor, the pump and motor valve plates 19, 71 are arranged back-toback. The areas of the back surfaces of the valve plates exposed to inlet and delivery pressure are dimensioned to provide specified force distributions between the valve plates, cylinder blocks and the support frame. Valve plate 19 is biased towards block 3 by sprngs 79 and held against rotation by a pin 78 permitting slight axial or tilting movement. Lubrication and hydraulic balancing of the valve plate face is effected by arcuate grooves 34, 35 (Fig. 4, not shown), connected to high pressure port 31, and grooves 36, 37 connected to low pressure port 32, the connections incorporating filters and capillary ducts which reduce the pressure by approximately half. A leakage-collecting recess 39 and groove 38 drain to the valve plate periphery. The cylinders may be parallel or inclined to the axis.
GB89163A 1962-01-26 1963-01-08 Improvements in or relating to hydraulic pumps and motors Expired GB1031731A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL274075 1962-01-26
NL284266 1962-10-11

Publications (1)

Publication Number Publication Date
GB1031731A true GB1031731A (en) 1966-06-02

Family

ID=26641821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB89163A Expired GB1031731A (en) 1962-01-26 1963-01-08 Improvements in or relating to hydraulic pumps and motors

Country Status (2)

Country Link
DE (1) DE1453554A1 (en)
GB (1) GB1031731A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233484A2 (en) * 1986-02-19 1987-08-26 Robert Bosch Gmbh Axial piston machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223564A1 (en) 2014-11-19 2016-05-19 Robert Bosch Gmbh Hydrostatic axial piston machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233484A2 (en) * 1986-02-19 1987-08-26 Robert Bosch Gmbh Axial piston machine
EP0233484A3 (en) * 1986-02-19 1988-09-21 Robert Bosch Gmbh Axial piston machine

Also Published As

Publication number Publication date
DE1453554A1 (en) 1969-11-20
DE1528471A1 (en) 1970-01-29
DE1528471B2 (en) 1973-02-15

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