GB881192A - Improvements in variable displacement pumps or motors - Google Patents

Improvements in variable displacement pumps or motors

Info

Publication number
GB881192A
GB881192A GB2432057A GB2432057A GB881192A GB 881192 A GB881192 A GB 881192A GB 2432057 A GB2432057 A GB 2432057A GB 2432057 A GB2432057 A GB 2432057A GB 881192 A GB881192 A GB 881192A
Authority
GB
United Kingdom
Prior art keywords
bearing
yoke
swash
bearings
plate
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
GB2432057A
Inventor
Oswald Thoma
Peter Henry Brown
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
Dowty Hydraulic Units Ltd
Original Assignee
Unipat AG
Dowty Hydraulic Units Ltd
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, Dowty Hydraulic Units Ltd filed Critical Unipat AG
Priority to GB2432057A priority Critical patent/GB881192A/en
Publication of GB881192A publication Critical patent/GB881192A/en
Expired legal-status Critical Current

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
    • F04B1/20—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
    • F04B1/2014—Details or component parts
    • F04B1/2064—Housings
    • 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
    • F04B1/2014—Details or component parts
    • F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
    • F04B1/2028—Bearings

Landscapes

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

Abstract

881,192. Swash-plate pumps. DOWTY HYDRAULIC UNITS Ltd. and UNIPAT A. G. July 31, 1958 [July 31, 1957], No. 24320 /57. Class 102(1). [Also in Group XXIX] A swash-plate pump comprises a rotating cylinder block 1, Fig. 2, a swash-plate 3 integral with the driving shaft 7, and stationary valve member 2 secured to a yoke 5 pivoted about an axis 6 to vary the stroke of the pistons. A bearing housing 8 for the drive shaft and thrust plate carries disc like lugs 13 housed in a recess 14 of the yoke through trunnion bearings 15. The above parts form a unit which is mounted in a casing 54 by rotary bearings 21, 22 coaxial with the trunnion bearings and the housing 8 is prevented from transverse movement relative to the rotational axis by a bearing ring 11 engaging the easing. As shown in Fig. 3, each bearing, such as 22, is formed of hard steel and receives a spigot 31 of the yoke in a recess 33 and is secured to the spigot by screws 34. The bearings are mounted in holes 36, lined by a sleeve of hard steel 38 which is secured against rotation by dowel pins 39. Shims 57 are provided for correct assembly. Seals 46 are mounted in the bearing for conducting liquid through the bearing to and from passages in the yoke to supply and discharge pipes 51. Specification 824,945 is referred to.
GB2432057A 1957-07-31 1957-07-31 Improvements in variable displacement pumps or motors Expired GB881192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2432057A GB881192A (en) 1957-07-31 1957-07-31 Improvements in variable displacement pumps or motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2432057A GB881192A (en) 1957-07-31 1957-07-31 Improvements in variable displacement pumps or motors

Publications (1)

Publication Number Publication Date
GB881192A true GB881192A (en) 1961-11-01

Family

ID=10209843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2432057A Expired GB881192A (en) 1957-07-31 1957-07-31 Improvements in variable displacement pumps or motors

Country Status (1)

Country Link
GB (1) GB881192A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656409A (en) * 1969-03-05 1972-04-18 Jean Ulrich Thoma Tilting head axial piston hydraulic machines
FR2688044A1 (en) * 1992-02-27 1993-09-03 Linde Ag HYDROMECHANICAL GEARBOX, IN PARTICULAR ALSO A TRUCK DRIVE SYSTEM (MECHANICAL SHOVEL) AND WHEELS.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656409A (en) * 1969-03-05 1972-04-18 Jean Ulrich Thoma Tilting head axial piston hydraulic machines
FR2688044A1 (en) * 1992-02-27 1993-09-03 Linde Ag HYDROMECHANICAL GEARBOX, IN PARTICULAR ALSO A TRUCK DRIVE SYSTEM (MECHANICAL SHOVEL) AND WHEELS.

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