GB694917A - Improvements relating to pump controls for hydraulic power hoists - Google Patents

Improvements relating to pump controls for hydraulic power hoists

Info

Publication number
GB694917A
GB694917A GB13555/51A GB1355551A GB694917A GB 694917 A GB694917 A GB 694917A GB 13555/51 A GB13555/51 A GB 13555/51A GB 1355551 A GB1355551 A GB 1355551A GB 694917 A GB694917 A GB 694917A
Authority
GB
United Kingdom
Prior art keywords
passage
pump
teves
vanes
piston
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
GB13555/51A
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.)
HEINZ TEVES
Continental Teves AG and Co oHG
Original Assignee
HEINZ TEVES
Alfred Teves GmbH
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 HEINZ TEVES, Alfred Teves GmbH filed Critical HEINZ TEVES
Publication of GB694917A publication Critical patent/GB694917A/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
    • 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
    • F04B1/0404—Details or component parts
    • F04B1/0413—Cams
    • 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
    • F04B1/08—Control regulated by delivery pressure
    • 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
    • F04B49/123—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 by changing the eccentricity of one element relative to another element
    • F04B49/128—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 by changing the eccentricity of one element relative to another element by changing the eccentricity of the cylinders, e.g. by moving a cylinder block
    • 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
    • F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft

Landscapes

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

Abstract

694,917. Rotary pumps. TEVES, A., TEVES, H., and TEVES, E. A., [trading as TEVES MASCHINENUND ARMATURENFABRIK KOMMANDIT-GES., A.] June 7, 1951 [June 7, 1950], No. 13555/51. Class 110(ii) [Also in Groups XXVIII and XXIX] The output of a combined sliding-vane and reciprocating-piston pump is controlled through displacement of the rotary pump casing 4, containing a ball-race, which varies the capacity of the latter pump and also the strokes of the vanes 3 which act as reciprocating pistons. The pump may be used in a hydraulic power hoist of. the type described in Specification 694,873, [Group XXIX]. the vane pump delivers liquid into a suction passage 8 leading to cylinders in a rotor 2 and the delivery from the undersides of vanes or pistons 3 passes to a passage 6 for use externally. When the passage 6 is throttled by partially closing a valve, pressure builds up and forces a piston 5 to the right to increase the size of the crescent-shaped chamber C and also the strokes of the vanes to increase the supply of liquid to the passage 6. An abutment 7 causes a pressure build-up in the crescent-shaped chamber, helping the piston 5, and also guides the liquid into the passage 8.
GB13555/51A 1950-06-07 1951-06-07 Improvements relating to pump controls for hydraulic power hoists Expired GB694917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE694917X 1950-06-07

Publications (1)

Publication Number Publication Date
GB694917A true GB694917A (en) 1953-07-29

Family

ID=6607187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13555/51A Expired GB694917A (en) 1950-06-07 1951-06-07 Improvements relating to pump controls for hydraulic power hoists

Country Status (1)

Country Link
GB (1) GB694917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333647A1 (en) * 1982-09-21 1984-05-24 Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden Variable lubricant pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333647A1 (en) * 1982-09-21 1984-05-24 Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden Variable lubricant pump

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