GB920265A - Improvements in hydraulic positive displacement machines - Google Patents

Improvements in hydraulic positive displacement machines

Info

Publication number
GB920265A
GB920265A GB462160A GB462160A GB920265A GB 920265 A GB920265 A GB 920265A GB 462160 A GB462160 A GB 462160A GB 462160 A GB462160 A GB 462160A GB 920265 A GB920265 A GB 920265A
Authority
GB
United Kingdom
Prior art keywords
ports
valve plate
port
communicate
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
GB462160A
Inventor
Donald Firth
Roger Harvey Yorke Hancock
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.)
Council of Scientific and Industrial Research CSIR
Original Assignee
Council of Scientific and Industrial Research CSIR
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 Council of Scientific and Industrial Research CSIR filed Critical Council of Scientific and Industrial Research CSIR
Priority to GB462160A priority Critical patent/GB920265A/en
Publication of GB920265A publication Critical patent/GB920265A/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
    • F01B3/0032—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
    • F01B3/104—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by turning the valve plate

Landscapes

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

Abstract

920,265. Reciprocating pumps. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Feb. 3, 1961 [Feb. 9, 1960], No. 4621/60. Class 102(1). [Also in Group XXIX] A stationary valve plate 22, for a rotating- cylinder block pump and having arcuate inlet and outlet ports 20, 21 with which each cylinder port 104 registers alternately during rotation, is provided with bleed ducts through which each cylinder port 104 communicates with the inlet port 20 before ceasing to communicate with the outlet port 21 and with the outlet port before ceasing to communicate with the inlet port. thereby reducing or eliminating the formation of shock waves. In the embodiment shown in Fig. 3, the bleed ducts 108, 109 are formed as tapered grooves at both ends of ports 20, 21. In another embodiment, Fig. 4, bleed ports 115, 117 are provided at both ends of ports 20, 21 and communicate with ports 20, 21 through passages 113, 116 respectively. In a swash-plate pump or motor construction, Fig..1, the valve plate 22 floats between bearing surfaces 18, 29 on the cylinder block 8 and an end housing 2 and is radially located through a peg 25 by a screw-threaded rod 23 movable by a captive nut to angularly adjust the valve plate relative to a tiltable swash-plate 12 to vary the timing. Hydraulic balancing of the bearing surfaces of the valve plate is employed and limited radial float of the valve plate is controlled hydrostatically. Specifications 893,848 and 906,553 are referred to.
GB462160A 1960-02-09 1960-02-09 Improvements in hydraulic positive displacement machines Expired GB920265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB462160A GB920265A (en) 1960-02-09 1960-02-09 Improvements in hydraulic positive displacement machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB462160A GB920265A (en) 1960-02-09 1960-02-09 Improvements in hydraulic positive displacement machines

Publications (1)

Publication Number Publication Date
GB920265A true GB920265A (en) 1963-03-06

Family

ID=9780621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB462160A Expired GB920265A (en) 1960-02-09 1960-02-09 Improvements in hydraulic positive displacement machines

Country Status (1)

Country Link
GB (1) GB920265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776021A (en) * 2014-01-10 2015-07-15 沃尔沃汽车公司 Displacement pump and a control ring for a displacement pump
US20170138195A1 (en) * 2013-03-12 2017-05-18 Dana Limited Enhanced waste heat recovery system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170138195A1 (en) * 2013-03-12 2017-05-18 Dana Limited Enhanced waste heat recovery system
CN104776021A (en) * 2014-01-10 2015-07-15 沃尔沃汽车公司 Displacement pump and a control ring for a displacement pump
EP2894295A1 (en) * 2014-01-10 2015-07-15 Volvo Car Corporation A control ring for a displacement pump and a displacement pump
CN104776021B (en) * 2014-01-10 2018-12-21 沃尔沃汽车公司 Piston pump and control ring for piston pump
US10167866B2 (en) 2014-01-10 2019-01-01 Volvo Car Corporation Displacement pump and a control ring for a displacement pump

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