GB343367A - Improvements relating to hydraulically operated drilling and other machines - Google Patents

Improvements relating to hydraulically operated drilling and other machines

Info

Publication number
GB343367A
GB343367A GB10301/30A GB1030130A GB343367A GB 343367 A GB343367 A GB 343367A GB 10301/30 A GB10301/30 A GB 10301/30A GB 1030130 A GB1030130 A GB 1030130A GB 343367 A GB343367 A GB 343367A
Authority
GB
United Kingdom
Prior art keywords
pump
cylinder
discharges
valves
machine
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
GB10301/30A
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.)
James Archdale and Co Ltd
Original Assignee
James Archdale and Co 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 James Archdale and Co Ltd filed Critical James Archdale and Co Ltd
Priority to GB10301/30A priority Critical patent/GB343367A/en
Publication of GB343367A publication Critical patent/GB343367A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable 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
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31582—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having multiple pressure sources and a single output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

343,367. Hydraulic transmission of power. ARCHDALE & CO., Ltd., J. and JEWSBURY, J., Ledsam Street, Birmingham. April 1, 1930, No. 10301. [Class 69 (ii)]. Hydraulically operated drilling and other machines comprise a reservoir e, Fig. 1, a constant capacity pump c, a variable capacity pump d and a controlling valve or valves, the working cycle being as follows, viz. (1) when the machine is at rest, the pump c discharges directly into the reservoir, and the pump d discharges through the cylinder b or a channel connected thereto, (2) during the working stroke, the pump d discharges into one end of the cylinder, and the pump c into the exhaust g, Fig. 3, from the other end, and (3) during the return stroke, the pump c discharges into the cylinder and the pump d to exhaust as shown in Fig. 4. The initial part of the working stroke may be effected rapidly by causing both pumps to deliver into one end of the cylinder as shown in Fig. 2. The control may be effected by a pair of valves i, k, Fig. 5, which are shown in the position requisite for effecting the mode of operation shown in Fig. 2. These valves are operated by liquid supplied from a pump l under the control of a valve j which may be operated manually or from a moving part of the machine, and liquid from the pump l may be used to operate a clutch or other part of the machine.
GB10301/30A 1930-04-01 1930-04-01 Improvements relating to hydraulically operated drilling and other machines Expired GB343367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10301/30A GB343367A (en) 1930-04-01 1930-04-01 Improvements relating to hydraulically operated drilling and other machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10301/30A GB343367A (en) 1930-04-01 1930-04-01 Improvements relating to hydraulically operated drilling and other machines

Publications (1)

Publication Number Publication Date
GB343367A true GB343367A (en) 1931-02-19

Family

ID=9965334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10301/30A Expired GB343367A (en) 1930-04-01 1930-04-01 Improvements relating to hydraulically operated drilling and other machines

Country Status (1)

Country Link
GB (1) GB343367A (en)

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