GB191415054A - Improvements in Hydraulic Pumps. - Google Patents

Improvements in Hydraulic Pumps.

Info

Publication number
GB191415054A
GB191415054A GB191415054DA GB191415054A GB 191415054 A GB191415054 A GB 191415054A GB 191415054D A GB191415054D A GB 191415054DA GB 191415054 A GB191415054 A GB 191415054A
Authority
GB
United Kingdom
Prior art keywords
plungers
springs
stroke
pressure
strokes
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
Inventor
Joseph Davidson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191415054A publication Critical patent/GB191415054A/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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/06—Control
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • F04B49/121—Lost-motion device in the driving mechanism

Abstract

15,054. Davidson, J. June 23. Stroke, varying.-A pump for producing a gradually increasing pressure and maintaining the pressure at a predetermined amount is provided with plungers which are positively actuated on their suction strokes and actuated through the medium of compression springs on their delivery strokes. The driving- shaft 17 carries eccentrics 16 operating rods 15, which reciprocate the frame 14, 31, 26. The pump cylinders are formed in pairs 6, 6 with oppositely-extending plungers 13, 32, which extend through the cross-heads 14, 26 and are provided with lock-nuts 22, 29. Collars 19, 30 are pressed against shoulders 21, 28 on the plungers by springs 20, 27, so that, on the suction strokes, the plungers are positively moved, and on the delivery strokes, are moved through the medium of the springs. The stroke of the plungers decreases gradually while the pressure increases, and at the maximum pressure, the plungers have no stroke, the full movement of the cross-heads being taken by the springs.
GB191415054D 1914-06-23 1914-06-23 Improvements in Hydraulic Pumps. Expired GB191415054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191415054T 1914-06-23

Publications (1)

Publication Number Publication Date
GB191415054A true GB191415054A (en) 1915-03-11

Family

ID=34360758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191415054D Expired GB191415054A (en) 1914-06-23 1914-06-23 Improvements in Hydraulic Pumps.

Country Status (1)

Country Link
GB (1) GB191415054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295264A1 (en) * 1974-12-20 1976-07-16 Mitsubishi Motors Corp DIAPHRAGM AIR PUMP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295264A1 (en) * 1974-12-20 1976-07-16 Mitsubishi Motors Corp DIAPHRAGM AIR PUMP

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