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GB1162993A - Improvements in or relating to Hydraulic Opposed Axial Piston Pumps and Motors - Google Patents

Improvements in or relating to Hydraulic Opposed Axial Piston Pumps and Motors

Info

Publication number
GB1162993A
GB1162993A GB37169/66A GB3716966A GB1162993A GB 1162993 A GB1162993 A GB 1162993A GB 37169/66 A GB37169/66 A GB 37169/66A GB 3716966 A GB3716966 A GB 3716966A GB 1162993 A GB1162993 A GB 1162993A
Authority
GB
United Kingdom
Prior art keywords
cylinder block
cam plate
axial piston
motors
face
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
GB37169/66A
Inventor
Oswald H Thoma
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.)
Unipat AG
Original Assignee
Unipat AG
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 Unipat AG filed Critical Unipat AG
Priority to GB37169/66A priority Critical patent/GB1162993A/en
Priority to US583673A priority patent/US3384028A/en
Publication of GB1162993A publication Critical patent/GB1162993A/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
    • F01B3/0082—Details
    • F01B3/0085—Pistons
    • 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
    • F01B3/0035—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
    • 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
    • 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
    • F01B3/10—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
    • 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
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • 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
    • F04B1/22—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 having two or more sets of cylinders or pistons
    • 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
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/005—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1,162,993. Axial piston pumps and motors. UNIPAT A.G. May 10, 1967 [Aug. 19, 1966], No. 37169/66. Heading F1A. In an axial piston pump or motor having a rotary cylinder block 17, 18, 21 and pairs of opposed pistons 28, 29, the piston pairs are constructed to telescope one within the other at their innermost positions within the cylinders 27. At their outermost positions the ratio of the length of the pistons within the cylinders and the length projecting therefrom is not more than 1:1. The cam plate 14 is of fixed inclination and the cam plate 15 is angularly adjustable by a control member 58, Fig. 3, (not shown), acting through a pivoted lever (55) carrying a pin (59) with a head (60) engaging a groove (61) in the cam plate surface. The cam plate 15 bears on a backing member 49 provided with strips 53 of bearing metal impregnated with P.T.F.E. The cylinder sleeves 27 are biased by the pressure therein to maintain the enlarged end portions 68 abutting the cylinder block. This bias on the cylinder block is balanced by bias produced at the face 67 of the cylinder block which co-operates with the face valve 76. The face valve 76 is carried by four tubes mounted in recesses in the end plate. A pintle valve may be provided.
GB37169/66A 1966-08-19 1966-08-19 Improvements in or relating to Hydraulic Opposed Axial Piston Pumps and Motors Expired GB1162993A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB37169/66A GB1162993A (en) 1966-08-19 1966-08-19 Improvements in or relating to Hydraulic Opposed Axial Piston Pumps and Motors
US583673A US3384028A (en) 1966-08-19 1966-10-03 Hydraulic pumps or motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37169/66A GB1162993A (en) 1966-08-19 1966-08-19 Improvements in or relating to Hydraulic Opposed Axial Piston Pumps and Motors

Publications (1)

Publication Number Publication Date
GB1162993A true GB1162993A (en) 1969-09-04

Family

ID=10394330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37169/66A Expired GB1162993A (en) 1966-08-19 1966-08-19 Improvements in or relating to Hydraulic Opposed Axial Piston Pumps and Motors

Country Status (2)

Country Link
US (1) US3384028A (en)
GB (1) GB1162993A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806280A (en) * 1970-08-03 1974-04-23 Oilgear Co Fluid device having interchangeable displacement control means
US3739691A (en) * 1970-08-03 1973-06-19 W Bobier Fluid device
USRE32403E (en) * 1970-08-03 1987-04-21 Dana Corporation Fluid device having interchangeable displacement control means
JPS50124202A (en) * 1974-03-19 1975-09-30
US4584926A (en) * 1984-12-11 1986-04-29 Sundstrand Corporation Swashplate leveling and holddown device
JPH02283870A (en) * 1989-04-05 1990-11-21 Zahnradfab Friedrichshafen Ag Axial-direction piston pump
US5466130A (en) * 1994-07-26 1995-11-14 Kobelt; Jacob Helm pump
US6655255B2 (en) 2001-07-10 2003-12-02 Caterpillar Inc. Swashplate arrangement for an axial piston pump
AT504984B1 (en) * 2007-03-09 2009-08-15 Rainer Dipl Ing Schildberg INJECTION AND OUTLET CONTROL FOR AN AXIAL PISTON MACHINE
US9856851B2 (en) 2013-03-29 2018-01-02 Kyb Corporation Opposed swash plate type fluid pressure rotating machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822064A (en) * 1930-06-23 1931-09-08 Clarence S Sorensen Compressor
US2273468A (en) * 1939-10-20 1942-02-17 Oilgear Co Hydrodynamic machine
US2431686A (en) * 1943-07-21 1947-12-02 Deschamps Fuel Injection Corp Variable capacity pump
US2577242A (en) * 1947-05-05 1951-12-04 Oilgear Co Axial type hydrodynamic machine
US2601830A (en) * 1949-05-14 1952-07-01 American Bosch Corp Pump
DE1156607B (en) * 1961-10-28 1963-10-31 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
US3169488A (en) * 1961-11-03 1965-02-16 New York Air Brake Co Rotary cylinder barrel and method of making same
FR1343916A (en) * 1962-11-23 1963-11-22 Maschfab Eisengiesserei Beien Improvements to hydraulic piston pumps
DE1289743B (en) * 1962-12-19 1969-02-20 Unipat Ag Control mirror arrangement in an axial piston machine
GB1002872A (en) * 1963-03-01 1965-09-02 Unipat Ag Axial piston hydraulic pump or motor

Also Published As

Publication number Publication date
US3384028A (en) 1968-05-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE Patent expired