SE411566B - Ventilblock for hydraulisk grevmaskiner - Google Patents

Ventilblock for hydraulisk grevmaskiner

Info

Publication number
SE411566B
SE411566B SE7807214A SE7807214A SE411566B SE 411566 B SE411566 B SE 411566B SE 7807214 A SE7807214 A SE 7807214A SE 7807214 A SE7807214 A SE 7807214A SE 411566 B SE411566 B SE 411566B
Authority
SE
Sweden
Prior art keywords
valve
hydraulic
valves
movement
pump
Prior art date
Application number
SE7807214A
Other languages
English (en)
Swedish (sv)
Inventor
B S Ripa
Original Assignee
Akermans Verkstad Ab
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 Akermans Verkstad Ab filed Critical Akermans Verkstad Ab
Priority to SE7807214A priority Critical patent/SE411566B/sv
Priority to DE19792920235 priority patent/DE2920235A1/de
Priority to GB7920596A priority patent/GB2024953B/en
Priority to NL7904804A priority patent/NL7904804A/xx
Priority to NO792076A priority patent/NO148717C/no
Priority to FI792024A priority patent/FI61933C/fi
Priority to DK270379A priority patent/DK147472C/da
Publication of SE411566B publication Critical patent/SE411566B/sv

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
SE7807214A 1978-06-26 1978-06-26 Ventilblock for hydraulisk grevmaskiner SE411566B (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE7807214A SE411566B (sv) 1978-06-26 1978-06-26 Ventilblock for hydraulisk grevmaskiner
DE19792920235 DE2920235A1 (de) 1978-06-26 1979-05-18 Ventilblock, insbesondere fuer hydro-bagger
GB7920596A GB2024953B (en) 1978-06-26 1979-06-13 Valve block for hydraulic excavators
NL7904804A NL7904804A (nl) 1978-06-26 1979-06-19 Kleppenkast, in het bijzonder voor een hydraulische graafmachine.
NO792076A NO148717C (no) 1978-06-26 1979-06-20 Ventilblokk for hydrauliske gravemaskiner
FI792024A FI61933C (fi) 1978-06-26 1979-06-26 Ventilblock saerskilt foer hydrauliska graevmaskiner
DK270379A DK147472C (da) 1978-06-26 1979-06-26 Ventilblok til hydrauliske maskiner, navnlig til gravemaskiner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7807214A SE411566B (sv) 1978-06-26 1978-06-26 Ventilblock for hydraulisk grevmaskiner

Publications (1)

Publication Number Publication Date
SE411566B true SE411566B (sv) 1980-01-14

Family

ID=20335311

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7807214A SE411566B (sv) 1978-06-26 1978-06-26 Ventilblock for hydraulisk grevmaskiner

Country Status (7)

Country Link
DE (1) DE2920235A1 (da)
DK (1) DK147472C (da)
FI (1) FI61933C (da)
GB (1) GB2024953B (da)
NL (1) NL7904804A (da)
NO (1) NO148717C (da)
SE (1) SE411566B (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205780B1 (en) 1996-01-10 2001-03-27 Aeroquip-Vickers International Gmbh Low-loss drive system for a plurality of hydraulic actuators

Also Published As

Publication number Publication date
NL7904804A (nl) 1979-12-28
DE2920235A1 (de) 1980-01-03
FI792024A (fi) 1979-12-27
NO148717B (no) 1983-08-22
NO792076L (no) 1979-12-28
FI61933C (fi) 1982-10-11
DK270379A (da) 1979-12-27
DK147472B (da) 1984-08-20
GB2024953A (en) 1980-01-16
DK147472C (da) 1985-02-25
GB2024953B (en) 1982-06-30
FI61933B (fi) 1982-06-30
NO148717C (no) 1983-11-30

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