GB970993A - Improvement in rotary pistons and machines incorporating them - Google Patents

Improvement in rotary pistons and machines incorporating them

Info

Publication number
GB970993A
GB970993A GB749761A GB749761A GB970993A GB 970993 A GB970993 A GB 970993A GB 749761 A GB749761 A GB 749761A GB 749761 A GB749761 A GB 749761A GB 970993 A GB970993 A GB 970993A
Authority
GB
United Kingdom
Prior art keywords
pistons
rotary
arrows
rotation
walls
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
GB749761A
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.)
Bopp and Reuther GmbH
Original Assignee
Bopp and Reuther 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 Bopp and Reuther GmbH filed Critical Bopp and Reuther GmbH
Publication of GB970993A publication Critical patent/GB970993A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/04—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls
    • G01F3/06—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing
    • G01F3/10—Geared or lobed impeller meters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Hydraulic Motors (AREA)

Abstract

970,993. Rotary pumps, motors and meters. BOPP & REUTHER G.m.b.H. March 1, 1961 [July 23, 1960], No. 7497/61. Heading F1F. A rotary piston machine such as a pump, engine or volumetric measuring appliance, comprising a pair of positively coupled rotary pistons 1, 2, Fig. 1, as shown, of oval shape with peripheral engaging teeth 3, includes wedge-shaped recesses 5, Fig. 2, on each side face of the pistons closely adjacent the walls of a chamber 7 housing the pistons. Rotation of the pistons in the direction of the arrows 4 sets up a pressure rise in the direction of the arrows 6 in the wedge-shaped recesses to produce fluid pressure forces urging the pistons away from the chamber walls to reduce mechanical friction whilst maintaining an effective seal between the pistons and the chamber walls and also maintain the pistons in a central position. The wedges may be arranged symmetrically with respect to the semi-axes of the pistons so that they are effective in either direction of rotation of the pistons.
GB749761A 1960-07-23 1961-03-01 Improvement in rotary pistons and machines incorporating them Expired GB970993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0058712 1960-07-23

Publications (1)

Publication Number Publication Date
GB970993A true GB970993A (en) 1964-09-23

Family

ID=6972178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB749761A Expired GB970993A (en) 1960-07-23 1961-03-01 Improvement in rotary pistons and machines incorporating them

Country Status (1)

Country Link
GB (1) GB970993A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470777A (en) * 1981-06-17 1984-09-11 Bernard Zimmern Volumetric machine with screw and pinion-wheels
US4492542A (en) * 1981-06-17 1985-01-08 Bernard Zimmern Global worm machine with seizure-preventing cells

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470777A (en) * 1981-06-17 1984-09-11 Bernard Zimmern Volumetric machine with screw and pinion-wheels
US4492542A (en) * 1981-06-17 1985-01-08 Bernard Zimmern Global worm machine with seizure-preventing cells

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