GB124007A - Improvements in Fluid Motors and Pumps. - Google Patents

Improvements in Fluid Motors and Pumps.

Info

Publication number
GB124007A
GB124007A GB47118A GB47118A GB124007A GB 124007 A GB124007 A GB 124007A GB 47118 A GB47118 A GB 47118A GB 47118 A GB47118 A GB 47118A GB 124007 A GB124007 A GB 124007A
Authority
GB
United Kingdom
Prior art keywords
eccentric
valve
shaft
rod
pump
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
GB47118A
Inventor
August Sundh
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
Priority to GB47118A priority Critical patent/GB124007A/en
Priority to FR488498D priority patent/FR488498A/en
Publication of GB124007A publication Critical patent/GB124007A/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
    • F04B49/22—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 means of valves
    • F04B49/24—Bypassing
    • 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
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/062—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement the connection of the pistons with an actuating or actuated element being at the inner ends of the cylinders
    • F01B1/0624—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement the connection of the pistons with an actuating or actuated element being at the inner ends of the cylinders with cam-actuated distribution member(s)
    • 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
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/0641—Details, component parts specially adapted for such machines
    • F01B1/0658—Arrangements for pressing or connecting the pistons against the actuating or actuated cam
    • 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
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/0675—Controlling
    • F01B1/0686—Controlling by changing the effective piston stroke
    • F01B1/0689—Controlling by changing the effective piston stroke by changing the excentricity of one element relative to another element

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Reciprocating Pumps (AREA)

Abstract

124,007. Sundh, A. Jan. 8, 1918. Eccentric-actuated pumps; multiple-acting piston pumps; balancing parts; regulating delivery by by-passes; relief devices; springs; stroke, varying; valves, arrangement of.-In an eccentricactuated pump, the eccentric 26 is adjusted transversely of the driving shaft 4 bv means of fluid pressure for the purpose of varying the stroke of the plungers 5. The shaft is bored to form a chamber 32 in which a piston 31 is moved by the fluid pressure admitted to either end of the chamber by ports 34. The piston carries a rod 30 engaging opposite sides of the eccentric, so that, when the piston is moved, the eccentric is moved in the same direction. The pressure-fluid is admitted to the chamber 32 from an accumulator 95 by means of a hunting-valve 71 controlling ports 89, 90 connected by pipes to annular chambers 42, 43 communicating with the ports 34 by means of passages 35, 36 in the shaft. The eccentric 26 is balanced by means of a weighted member 46 slidably mounted on the shaft and adapted to be moved in the opposite direction to the concentric by means of a rack-and-pinion connexion between it and the eccentric. Two springs 50, 51 enclosed between the opposite faces of the member 46 and the shaft resist the centrifugal movement of the member 46, and two springs 65 in a casing attached to the eccentric resist the centrifugal movement of the eccentric. A rod 53 engaging opposite faces of the member 46 has a wedge surface 55 engaged by a rod 56, which is forced against it by a spring, so that, when the member 46 moves across the shaft, the rod 56 is moved axially and actuates a yoke 77 connected by links 80, 81 to the rod of the valve 71. This movement returns the valve to the closed position. The valve is opened to adjust the eccentric by means of two sets of electro magnets 86, 87 for moving the valve in opposite directions. The magnets in each set are energized successively by means of a multiplecontact switch so as to exert an increasing turning movement on a spindle 84 carrying a lever 83 connected to the valve-rod by links 82, 81. The accumulator 95 is fed by a pump 101 actuated by an eccentric on the shaft 4 and mounted in a sump in the pump casing. When the level of liquid in the sump is high, a float opens a switch of an electro-magnet holding a by-pass valve open, thereby closing the by-pass valve and allowing the pump to force fluid to the accumulator. When the level falls, the float closes the switch and thereby opens the by-pass. Each pump chamber 7 communicates alternately with annular inlet and delivery chambers 11, 13 in the head of the pump casing. The inlet and delivery are controlled by a piston valve 10 actuated by an eccentric 19 on the shaft 4. Relief valves are arranged between the chambers' 11, 13. The invention is applicable to motors of the same type.
GB47118A 1918-01-08 1918-01-08 Improvements in Fluid Motors and Pumps. Expired GB124007A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB47118A GB124007A (en) 1918-01-08 1918-01-08 Improvements in Fluid Motors and Pumps.
FR488498D FR488498A (en) 1918-01-08 1918-01-19 Improvements in motors and fluid pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47118A GB124007A (en) 1918-01-08 1918-01-08 Improvements in Fluid Motors and Pumps.

Publications (1)

Publication Number Publication Date
GB124007A true GB124007A (en) 1919-03-20

Family

ID=32340200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47118A Expired GB124007A (en) 1918-01-08 1918-01-08 Improvements in Fluid Motors and Pumps.

Country Status (2)

Country Link
FR (1) FR488498A (en)
GB (1) GB124007A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2654526C3 (en) * 1976-12-02 1982-09-30 G. Düsterloh GmbH, 4322 Sprockhövel Hydrostatic radial piston machine

Also Published As

Publication number Publication date
FR488498A (en) 1918-10-15

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