GB1010608A - Improvements in hydraulic motor or pump devices - Google Patents

Improvements in hydraulic motor or pump devices

Info

Publication number
GB1010608A
GB1010608A GB3484862A GB3484862A GB1010608A GB 1010608 A GB1010608 A GB 1010608A GB 3484862 A GB3484862 A GB 3484862A GB 3484862 A GB3484862 A GB 3484862A GB 1010608 A GB1010608 A GB 1010608A
Authority
GB
United Kingdom
Prior art keywords
cylinder block
inlet
pressure
ports
valve 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
GB3484862A
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.)
Sperry Corp
Original Assignee
Sperry Rand Corp
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
Priority claimed from US138046A external-priority patent/US3181476A/en
Priority claimed from US138156A external-priority patent/US3181477A/en
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1010608A publication Critical patent/GB1010608A/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
    • 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
    • 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
    • F01B3/0064—Machine housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1,010,608. Reciprocating motors and pumps. SPERRY RAND CORPORATION. Sept. 12, 1962 [Sept. 14, 1961(2)], No. 34848/62. Heading F1A. In a swash plate-type motor or pump, pressure balancing is effected by pressurizing a liquidfilled chamber 25, Fig. 6, surrounding the swash plate ends of the cylinders, at a pressure intermediate the inlet and delivery pressures, e.g. half the sum of the inlet and delivery pressures. This pressure may be provided by a stepped piston having faces at one end connected to the inlet and delivery ports, and a face at its other end connected to the casing, the areas of the faces being suitably proportioned. In a reversible motor embodiment, Figs. 6 and 8, controlled by a four-way servo valve, the valve plate 19 is fixed and has relieved portions 57, 58 adjacent the cylinder block connected to the low pressure side of the motor, to improve biasing of the cylinder block. To compensate for tilting of the cylinder block, the cylinder ports may be tapered axially. In a variable output pump embodiment Fig. 15, the valve plate 122 is angularly adjustable relative to the cylinder block by manual or hydraulic means. The stepped piston controlling the pressure in chamber 135 is housed in casing end 125. Valve plate 122 is balanced by grooves 138, 139, Fig. 18, connected to inlet and outlet ports 137, 136, respectively, by channels 143, 146, Fig. 19. Further balancing is effected by apertures 153, 154 connected to the outlet port and to an annular groove in the cylinder block face, and by radial grooves 147, 148, 149 and 150. Specification 938,596 is referred to.
GB3484862A 1961-09-14 1962-09-12 Improvements in hydraulic motor or pump devices Expired GB1010608A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US138046A US3181476A (en) 1961-09-14 1961-09-14 Power transmission
US138156A US3181477A (en) 1961-09-14 1961-09-14 Power transmission

Publications (1)

Publication Number Publication Date
GB1010608A true GB1010608A (en) 1965-11-24

Family

ID=26835819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3484862A Expired GB1010608A (en) 1961-09-14 1962-09-12 Improvements in hydraulic motor or pump devices

Country Status (3)

Country Link
CH (1) CH472578A (en)
DE (1) DE1453675C3 (en)
GB (1) GB1010608A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150110656A1 (en) * 2013-10-22 2015-04-23 Hydro Leduc Hydraulic piston pump having distribution through a bi-directional port plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150110656A1 (en) * 2013-10-22 2015-04-23 Hydro Leduc Hydraulic piston pump having distribution through a bi-directional port plate

Also Published As

Publication number Publication date
DE1453675C3 (en) 1974-11-28
DE1453675A1 (en) 1970-01-29
CH472578A (en) 1969-05-15
DE1453675B2 (en) 1974-04-25

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