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GB282752A - Improvements in rotary machines for compressing and conveying liquids - Google Patents

Improvements in rotary machines for compressing and conveying liquids

Info

Publication number
GB282752A
GB282752A GB34369/27A GB3436927A GB282752A GB 282752 A GB282752 A GB 282752A GB 34369/27 A GB34369/27 A GB 34369/27A GB 3436927 A GB3436927 A GB 3436927A GB 282752 A GB282752 A GB 282752A
Authority
GB
United Kingdom
Prior art keywords
teeth
working space
casing
impellers
cylinder volume
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
GB34369/27A
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.)
JOSEF KOZOUSEK
Original Assignee
JOSEF KOZOUSEK
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 JOSEF KOZOUSEK filed Critical JOSEF KOZOUSEK
Publication of GB282752A publication Critical patent/GB282752A/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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/126—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Landscapes

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

Abstract

282,752. Kozousek, J. Dec. 30, 1926, [Convention date]. Movable-abutment type; compensating for irregularity of flow; back-pressure, reducing.-Rootsblower type pump impellers are so constructed that the maximum working space, for any given number of teeth or lobes is obtained and the impellers can be made by the rolling-off method. Fig. 5 is a diagram showing the volume of the working space as a percentage of the cylinder volume for different numbers of teeth z = 2, 3, 4, the teeth being of involute form with varying angles of engagement. For an impeller with two teeth, for example, a maximum working space 59.5 per cent of the cylinder volume is obtained with an angle of engagement 47‹ 40. With teeth of cycloidal form the generating circle should be half the pitch circle, the flanks of the teeth then being straight lines. -With two teeth the working space is 63 per cent of the cylinder volume. The teeth may be slightly truncated for sealing purposes and the impellers may be made with inclined teeth. To reduce back pressure at the meshing point a recess 8 may be provided in the casing or the roots of the teeth may be hollowed out at 9. To compensate for irregularity in flow, due to the sudden opening of a pocket to the delivery pressure, the casing is cut away at 1<1>, or a duct 10 leading to the delivery pipe is provided, or an air chamber 11 may be formed in the casing. The impeller shafts are connected by gear wheels which are adjustably fixed on the shafts by key members 14, Fig. 7, which are divided along an inclined line and adjusted by a nut 15.
GB34369/27A 1926-12-30 1927-12-19 Improvements in rotary machines for compressing and conveying liquids Expired GB282752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS282752X 1926-12-30

Publications (1)

Publication Number Publication Date
GB282752A true GB282752A (en) 1928-05-31

Family

ID=5451976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34369/27A Expired GB282752A (en) 1926-12-30 1927-12-19 Improvements in rotary machines for compressing and conveying liquids

Country Status (1)

Country Link
GB (1) GB282752A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463080A (en) * 1945-02-17 1949-03-01 Schwitzer Cummins Company Interengaging impeller fluid pump
US2523317A (en) * 1943-10-30 1950-09-26 Daniel F Mcgill Rotary type air compressor
US2897765A (en) * 1954-12-07 1959-08-04 Kitano Akitoshi Driving apparatus comprising modified elliptic gear wheels
US3089638A (en) * 1958-12-01 1963-05-14 Dresser Ind Impellers for fluid handling apparatus of the rotary positive displacement type
US3105634A (en) * 1960-12-27 1963-10-01 Polysius Gmbh Rotary piston for a roots blower
US3174274A (en) * 1961-12-13 1965-03-23 Reinhold A Frye Rotary engine
US3305167A (en) * 1964-12-04 1967-02-21 Nagata Shigeyoshi Tooth profiles of non-pulsating, rotary pistons which are non-circular, spurtoothed and provided with non-circular gears
GB2125485A (en) * 1982-08-10 1984-03-07 Paul William Nachtrieb Rotary positive-displacement fluid-machines
EP0225070A1 (en) * 1985-11-18 1987-06-10 Eaton Corporation Port arrangement for rotary positive displacement blower
GB2208174A (en) * 1987-07-07 1989-03-08 Fuji Heavy Ind Ltd Roots blower
US5090879A (en) * 1989-06-20 1992-02-25 Weinbrecht John F Recirculating rotary gas compressor
US5118268A (en) * 1991-06-19 1992-06-02 Eaton Corporation Trapped volume vent means with restricted flow passages for meshing lobes of roots-type supercharger
US5131829A (en) * 1991-06-19 1992-07-21 Eaton Corporation Trapped volume vent means for meshing lobes of roots-type supercharger
EP2085616A1 (en) * 2008-01-29 2009-08-05 Agusta S.p.A. Combined scavenging roots pump and feed pump
EP2264319A2 (en) 2009-05-28 2010-12-22 Hitachi Plant Technologies, Ltd. Oil free screw compressor
US9683521B2 (en) 2013-10-31 2017-06-20 Eaton Corporation Thermal abatement systems
CN107850071A (en) * 2015-08-11 2018-03-27 开利公司 Screw compressor economizer pumping chamber for reduction of pulsing
USD816717S1 (en) 2014-08-18 2018-05-01 Eaton Corporation Supercharger housing
CN111271284A (en) * 2020-03-16 2020-06-12 江阴全玉节能环保真空设备制造有限公司 Three-blade rotor assembly of roots vacuum pump
CN112555152A (en) * 2020-10-30 2021-03-26 西安交通大学 Twisted-blade Roots rotor and design method thereof, compressor and expander

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523317A (en) * 1943-10-30 1950-09-26 Daniel F Mcgill Rotary type air compressor
US2463080A (en) * 1945-02-17 1949-03-01 Schwitzer Cummins Company Interengaging impeller fluid pump
US2897765A (en) * 1954-12-07 1959-08-04 Kitano Akitoshi Driving apparatus comprising modified elliptic gear wheels
US3089638A (en) * 1958-12-01 1963-05-14 Dresser Ind Impellers for fluid handling apparatus of the rotary positive displacement type
US3105634A (en) * 1960-12-27 1963-10-01 Polysius Gmbh Rotary piston for a roots blower
US3174274A (en) * 1961-12-13 1965-03-23 Reinhold A Frye Rotary engine
US3305167A (en) * 1964-12-04 1967-02-21 Nagata Shigeyoshi Tooth profiles of non-pulsating, rotary pistons which are non-circular, spurtoothed and provided with non-circular gears
GB2125485A (en) * 1982-08-10 1984-03-07 Paul William Nachtrieb Rotary positive-displacement fluid-machines
EP0225070A1 (en) * 1985-11-18 1987-06-10 Eaton Corporation Port arrangement for rotary positive displacement blower
GB2208174A (en) * 1987-07-07 1989-03-08 Fuji Heavy Ind Ltd Roots blower
US5090879A (en) * 1989-06-20 1992-02-25 Weinbrecht John F Recirculating rotary gas compressor
US5131829A (en) * 1991-06-19 1992-07-21 Eaton Corporation Trapped volume vent means for meshing lobes of roots-type supercharger
US5118268A (en) * 1991-06-19 1992-06-02 Eaton Corporation Trapped volume vent means with restricted flow passages for meshing lobes of roots-type supercharger
EP2085616A1 (en) * 2008-01-29 2009-08-05 Agusta S.p.A. Combined scavenging roots pump and feed pump
US8113803B2 (en) 2008-01-29 2012-02-14 Agusta S.P.A. Lubricating system for aircraft drive
EP2264319A2 (en) 2009-05-28 2010-12-22 Hitachi Plant Technologies, Ltd. Oil free screw compressor
US9683521B2 (en) 2013-10-31 2017-06-20 Eaton Corporation Thermal abatement systems
US11085403B2 (en) 2013-10-31 2021-08-10 Eaton Intelligent Power Limited Thermal abatement systems
USD816717S1 (en) 2014-08-18 2018-05-01 Eaton Corporation Supercharger housing
US20180156501A1 (en) * 2015-08-11 2018-06-07 Carrier Corporation Screw Compressor Economizer Plenum for Pulsation Reduction
US10808969B2 (en) * 2015-08-11 2020-10-20 Carrier Corporation Screw compressor economizer plenum for pulsation reduction
CN107850071B (en) * 2015-08-11 2021-01-22 开利公司 Screw compressor economizer plenum for pulsation reduction
CN107850071A (en) * 2015-08-11 2018-03-27 开利公司 Screw compressor economizer pumping chamber for reduction of pulsing
CN111271284A (en) * 2020-03-16 2020-06-12 江阴全玉节能环保真空设备制造有限公司 Three-blade rotor assembly of roots vacuum pump
CN112555152A (en) * 2020-10-30 2021-03-26 西安交通大学 Twisted-blade Roots rotor and design method thereof, compressor and expander

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