US3199771A - Multicell machine operating as a combination pressure-vacuum generator - Google Patents

Multicell machine operating as a combination pressure-vacuum generator Download PDF

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Publication number
US3199771A
US3199771A US230908A US23090862A US3199771A US 3199771 A US3199771 A US 3199771A US 230908 A US230908 A US 230908A US 23090862 A US23090862 A US 23090862A US 3199771 A US3199771 A US 3199771A
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United States
Prior art keywords
drum
cylinder
working space
chamber
pressure
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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 - Lifetime
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US230908A
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English (en)
Inventor
Becker Otto
Jeschke Gunter
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Gebr Becker GmbH
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Gebr Becker GmbH
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Publication date
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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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/122—Arrangements for supercharging the working space

Definitions

  • Combination pressure-vacuum generators are welllinown which are desi ned for the generation of a volume of compressed air as large as possible in the pressure chamber of the machine and with any desired vacuum in the suction chamber.
  • the cylinder is provided with a secondary suction adsorption arrangement through which after termination or" the suction process atmospheric air will enter the vacuum chamber, v "rich then will be compressed and delivered to the compressedair extraction place.
  • the invention provides a multicell machine operating as a combination pressure-vacuum generator, which cornprises in combination a cylinder, a piston drum arranged eccentrically in said cylinder so as to leave a substantially crescent-shaped working space connected with suction and pressure chambers, respectively, s ding pistons traversing independently or" each other in racial or tangential slots in the piston drum and subdividing the working space into chambers, the inside wall of said cylinder being curved in a section disposed within the vertex of said working space in accordance with a circular are curved concentrically to the s of rotation of said piston drum, while each end of said section is connected to a portion with the same tangents at the connection joints but wa ll ice with different radii of curvature, the centers of these circles being apart on a straig rt line which extends normal to the vertical central plane of said cylinder, and the free ends of said wall portions being joined by a connection piece curved according to a circle whose center is on a straight
  • the drawing shows a multicell machine 1 comprising a housing 2 with a cylinder 3.
  • the cylinder 3 is provided with an eccentrically arranged piston drum 4 so that the piston drum 4 contacts the inside wall 5 of the cylinder 3 at the running seal between a suction chamber 19 and a pressure chamber ill, the necessary tolerance being considered.
  • In radial or tangential slots 6 in the piston drum 4 there are sliding pistons 7 slidable transversely to the direction of the longitudinal axis of the piston drum and pressed against the inside wall 5 of the cylinder 3 through centrifugal force.
  • the ends of the cylinder 3 are closed by covers (not shown) which support the bearings of the piston drum Owing to the eccentric mounting of the piston drum 4 in the cylinder there exists a substantially crescent-shaped working space 8 which is subdivided into chambers h by the sliding pistons
  • eight sliding pistons '7 forming eight angles each of 45 are provided.
  • the running seal between the inside wall 5 of the cylinder 3 and the piston drum 4 is the separation between the suction chamber it? and the pressure chamber 31.
  • the inside Wall 5 of the cylinder 3 is not circular.
  • the inside wall 5 of the cylinder 3 in section A extends in an arc of a circle concentric to the axis of rotation of the piston drum 4.
  • the wall portions of the cylinder 3 adjoining both sides of section A have the same tangents at their zones of connection but different radii of curvature.
  • the centers of these two circles are distant from each other on a straight line G which extends normal to the vertical central plane of the cylinder 3.
  • the wall portions 12 are joined by a connecting piece 13 which is curved so as to extend in an arc of a circle having its center on the straight line H which extends in the vertical center plane of the cylinder 3, and which at the contacting places with the wall portions 12 has the same tangents.
  • the chambers 9 and 9 in the section A have the same cubic contents.
  • the effective part a of the sliding pistons 7 is constant Within the section A, for the sliding pistons '7 within this section do not vary their positions in the slots 6.
  • the wall of the cylinder 3 is provided with a narrow slot Li placing the Working space 8 in communication with the atmosphere.
  • the secondary suction a -sorption is through this slot 14.
  • the housing 2 of the machine 1 rests on a base 15.
  • the machine operates as follows:
  • the invention can also be used for multicell machines with dry-rotating piston drums, without having any noticeable reduction of compressed air.
  • a vane pump operating as pressure and vacuum pump, in combination, a cylinder having an inner peripheral surface and opposite closed ends; a circular cylindrical drum turnable in one direction about its axis and arranged in said cylinder eccentrically with respect thereto so as to form between said inner surface of said cylinder and the outer surface of said drum an arcuate Working space, said drum being formed with a plurality of slots angularly spaced from each other and extending through the whole length of said drum; a suction chamher and a pressure chamber respectively communicating with the interior of said cylinder in the region of opposite ends of said arcuate working space; a sliding vane in each slot and having an outer edge engaging said inner peripheral surface of said cylinder so as to divide said arcuate working space into a plurality of chambers, said arcuate working space extending over an angle greater than that enclosed by three adjacent vanes and the inner peripheral surface of said sylinder having at the region of the apex of said Working space a circular cylindrical surface portion having an axis coinciding with the a
  • a vane pump operating as pressure and vacuum ump
  • a cylinder having an inner peripheral surface and opposite closed ends
  • a circular cylindrical drum turnable in one direction about its axis and arranged in said cylinder eccentrically with respect thereto so as to engage said inner peripheral surface of said cylinder substantially along a line so as to form between said inner surface of said cylinder and the outer surface of said drum an arcuate working space
  • said drum being formed with a plurality of slots angularly spaced through equal angles from each other and extending through the whole length of said drum
  • a suction chamher and a pressure chamber respectively communicating with the interior of said cylinder in the region of opposite ends of said arcuate Working space
  • a sliding vane in each slot and having an outer edge engaging said inner peripheral surface of said cylinder so as to divide said arcuate working space into a plurality of chambers, said arcuate Working space extending over an angle greater than that enclosed by three adjacent vanes and; the inner peripheral surface of said cylinder having at the region of the apex of
  • a vane pump operating as pressure and vacuum pump, in combination, a cylinder having an inner peripheral surface and opposite closed ends; a circular cylindrical drum turnable in one direction about its axis and arranged in said cylinder eccentrically with respect thereto so as to engage said inner peripheral surface of said cylinder substantially along a line so as to form between said inner surface of said cylinder and the outer surface of said drum an arcuate working space, said drum being formed with a plurality of slots angularly spaced through equal angles from each other and extending through the whole length of said drum; a suction chamber and a pressure chamber respectively communicating with the interior of said cylinder in the region of opposite ends of said arcuate working space; a sliding vane in each slot and having an outer edge engaging said inner peripheral surface of said cylinder so as to divide said arcuate Working space into a plurality of chambers, said arcua-te working space extending over an angle greater than that enclosed by three adjacent vanes and the inner peripheral surface of said cylinder having at the region of the apex of said ar

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
US230908A 1961-10-19 1962-10-16 Multicell machine operating as a combination pressure-vacuum generator Expired - Lifetime US3199771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961B0064428 DE1287729B (enrdf_load_stackoverflow) 1961-10-19 1961-10-19

Publications (1)

Publication Number Publication Date
US3199771A true US3199771A (en) 1965-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US230908A Expired - Lifetime US3199771A (en) 1961-10-19 1962-10-16 Multicell machine operating as a combination pressure-vacuum generator

Country Status (3)

Country Link
US (1) US3199771A (enrdf_load_stackoverflow)
DE (1) DE1287729B (enrdf_load_stackoverflow)
GB (1) GB993874A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295804A (en) * 1978-11-07 1981-10-20 Adriano Pezzot Intermediately cooled air vacuum pump with balancing of the pressures
FR2517755A1 (fr) * 1981-12-09 1983-06-10 Boc Group Plc Pompe mecanique perfectionnee a vide pousse
US4544337A (en) * 1981-11-11 1985-10-01 Teruo Maruyama Rotary compressor with two or more suction parts
US4826407A (en) * 1986-10-22 1989-05-02 The Utile Engineering Co. Ltd. Rotary vane pump with ballast port
WO1999057439A1 (de) * 1998-04-30 1999-11-11 Werner Rietschle Gmbh + Co. Kg Vacuumpumpe
US20150132155A1 (en) * 2013-11-07 2015-05-14 Joma-Polytec Gmbh Pump device with a vacuum pump and a lubrication pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785758A (en) * 1972-04-24 1974-01-15 Abex Corp Vane pump with ramp on minor diameter
IT1135031B (it) * 1981-01-14 1986-08-20 Generalvacuum Spa Perfezionamenti nelle o relativi alle pompe a capsulismo
US4410305A (en) 1981-06-08 1983-10-18 Rovac Corporation Vane type compressor having elliptical stator with doubly-offset rotor

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US720834A (en) * 1901-08-21 1903-02-17 Adolph Michael Rotary engine.
US1237668A (en) * 1913-11-14 1917-08-21 Fritz W Machlet Pump, &c.
US1804604A (en) * 1927-08-04 1931-05-12 Silent Glow Oil Burner Corp Pump
GB433488A (en) * 1934-04-26 1935-08-15 Frederick Llewellyn Smith Improvements in rotary pumps, engines, compressors or exhausters
US2191345A (en) * 1935-12-21 1940-02-20 Leybold S Nachfolger Kommandit Method of and apparatus for drawing gaseous fluids from receptacles
US2523317A (en) * 1943-10-30 1950-09-26 Daniel F Mcgill Rotary type air compressor
US2639855A (en) * 1948-02-06 1953-05-26 William T Daniels Variable vacuum and pressure rotary pump
FR1116643A (fr) * 1954-01-12 1956-05-09 Teves Kg Alfred Pompes à palettes tournantes
GB754427A (en) * 1953-12-17 1956-08-08 Heinz Teves Rotary vane pump with disc-shaped rotor
US2832199A (en) * 1953-04-30 1958-04-29 American Brake Shoe Co Vane pump
US2977888A (en) * 1955-02-24 1961-04-04 William T Livermore Hydraulic pump and control valve assembly
US2983226A (en) * 1953-01-16 1961-05-09 William T Livermore Injection filled liquid pump
US3003423A (en) * 1957-07-11 1961-10-10 Thompson Ramo Wooldridge Inc Pressure control valve

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US720834A (en) * 1901-08-21 1903-02-17 Adolph Michael Rotary engine.
US1237668A (en) * 1913-11-14 1917-08-21 Fritz W Machlet Pump, &c.
US1804604A (en) * 1927-08-04 1931-05-12 Silent Glow Oil Burner Corp Pump
GB433488A (en) * 1934-04-26 1935-08-15 Frederick Llewellyn Smith Improvements in rotary pumps, engines, compressors or exhausters
US2191345A (en) * 1935-12-21 1940-02-20 Leybold S Nachfolger Kommandit Method of and apparatus for drawing gaseous fluids from receptacles
US2523317A (en) * 1943-10-30 1950-09-26 Daniel F Mcgill Rotary type air compressor
US2639855A (en) * 1948-02-06 1953-05-26 William T Daniels Variable vacuum and pressure rotary pump
US2983226A (en) * 1953-01-16 1961-05-09 William T Livermore Injection filled liquid pump
US2832199A (en) * 1953-04-30 1958-04-29 American Brake Shoe Co Vane pump
GB754427A (en) * 1953-12-17 1956-08-08 Heinz Teves Rotary vane pump with disc-shaped rotor
FR1116643A (fr) * 1954-01-12 1956-05-09 Teves Kg Alfred Pompes à palettes tournantes
US2977888A (en) * 1955-02-24 1961-04-04 William T Livermore Hydraulic pump and control valve assembly
US3003423A (en) * 1957-07-11 1961-10-10 Thompson Ramo Wooldridge Inc Pressure control valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295804A (en) * 1978-11-07 1981-10-20 Adriano Pezzot Intermediately cooled air vacuum pump with balancing of the pressures
US4544337A (en) * 1981-11-11 1985-10-01 Teruo Maruyama Rotary compressor with two or more suction parts
FR2517755A1 (fr) * 1981-12-09 1983-06-10 Boc Group Plc Pompe mecanique perfectionnee a vide pousse
US4826407A (en) * 1986-10-22 1989-05-02 The Utile Engineering Co. Ltd. Rotary vane pump with ballast port
WO1999057439A1 (de) * 1998-04-30 1999-11-11 Werner Rietschle Gmbh + Co. Kg Vacuumpumpe
WO1999057419A1 (de) * 1998-04-30 1999-11-11 Werner Rietschle Gmbh + Co. Kg Drehkolbenmaschine mit dreiflügeligen rotoren
US6364642B1 (en) 1998-04-30 2002-04-02 Werner Rietschle Gmbh & Co., Kg Rotary piston machine with three-blade rotors
US6439865B1 (en) 1998-04-30 2002-08-27 Werner Rietschle Gmbh & Co. Kg Vacuum pump
CN1128935C (zh) * 1998-04-30 2003-11-26 维尔纳·里彻尔两合公司 同时产生压力和负压的泵
US20150132155A1 (en) * 2013-11-07 2015-05-14 Joma-Polytec Gmbh Pump device with a vacuum pump and a lubrication pump
US10119541B2 (en) * 2013-11-07 2018-11-06 Joma-Polytec Gmbh Pump device with a vacuum pump and a lubrication pump

Also Published As

Publication number Publication date
DE1287729B (enrdf_load_stackoverflow) 1969-01-23
GB993874A (en) 1965-06-02

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