GB1395385A - Rotary positive-displacement pump having discharge baffle means - Google Patents

Rotary positive-displacement pump having discharge baffle means

Info

Publication number
GB1395385A
GB1395385A GB4269672A GB4269672A GB1395385A GB 1395385 A GB1395385 A GB 1395385A GB 4269672 A GB4269672 A GB 4269672A GB 4269672 A GB4269672 A GB 4269672A GB 1395385 A GB1395385 A GB 1395385A
Authority
GB
United Kingdom
Prior art keywords
outlet
pump
rotary positive
displacement pump
baffle means
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
GB4269672A
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.)
Improved Machinery Inc
Original Assignee
Improved Machinery Inc
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 Improved Machinery Inc filed Critical Improved Machinery Inc
Publication of GB1395385A publication Critical patent/GB1395385A/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
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F04C3/02—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged at an angle of 90 degrees
    • F04C3/04—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Eye Examination Apparatus (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1395385 Rotary positive-displacement fluid-machines IMPROVED MACHINERY Inc 14 Sept 1972 [6 Oct 1971] 42696/72 Heading F1F To reduce noise generated by a pump having intermeshing rotors 68, 70 with axially straight lobes 84 an outlet 76 defined by baffles 86 has central portions 94 that in a direction longitudinally of the pockets 80 between the lobes are smaller than the remainder of the outlet. In other embodiments, Figs. 7 and 8 (not shown), the outlet is either substantially lozenge shaped or cruciform. It is indicated that the pump may comprise a single rotor with axially straight or spiral pockets and one of said central portions on the leading side of the outlet only. A pump is also described that is basically the same as that disclosed in Specification 1336478, the outlet 34 adjacent the single screw-rotor 16 being shaped as shown in Fig. 2 or 3.
GB4269672A 1971-10-06 1972-09-14 Rotary positive-displacement pump having discharge baffle means Expired GB1395385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18686471A 1971-10-06 1971-10-06

Publications (1)

Publication Number Publication Date
GB1395385A true GB1395385A (en) 1975-05-29

Family

ID=22686579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4269672A Expired GB1395385A (en) 1971-10-06 1972-09-14 Rotary positive-displacement pump having discharge baffle means

Country Status (11)

Country Link
US (1) US3746482A (en)
JP (1) JPS4845908A (en)
BR (1) BR7206854D0 (en)
CA (1) CA964933A (en)
DE (1) DE2248490C2 (en)
FI (1) FI54534C (en)
FR (1) FR2155573A5 (en)
GB (1) GB1395385A (en)
IT (1) IT968641B (en)
NO (1) NO137213C (en)
SE (1) SE385315B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702240A (en) * 1995-05-05 1997-12-30 Tuthill Corporation Rotary positive displacement blower having a diverging outlet part
US8096288B2 (en) * 2008-10-07 2012-01-17 Eaton Corporation High efficiency supercharger outlet
CN104763639A (en) * 2014-01-04 2015-07-08 临安创投机械有限公司 Liquid pump used for extracting viscous liquid

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT37680B (en) * 1906-11-27 1909-06-25 Bruno Beier Power machine with a rotating piston, the working space of which is formed by a helical groove in the piston drum.
US1021180A (en) * 1911-01-19 1912-03-26 Archer E Clifton Construction of rotary blowers and pumps.
US1670681A (en) * 1925-03-30 1928-05-22 Haas Rudolf Rotary pump, motor, and meter
DE600971C (en) * 1932-01-20 1934-08-04 Maschf Augsburg Nuernberg Ag Capsule blower with blower blades that are completely rounded on their outer circumference
US2480818A (en) * 1943-05-11 1949-08-30 Joseph E Whitfield Helical rotary fluid handling device
US2531726A (en) * 1946-01-26 1950-11-28 Roper Corp Geo D Positive displacement rotary pump
DE925906C (en) * 1952-04-03 1955-03-31 Daimler Benz Ag Rotary piston blower, in particular Roots blower for internal combustion engines
US2871794A (en) * 1953-06-01 1959-02-03 Roper Ind Inc Gear pump or fluid motor
DE1264958B (en) * 1960-10-08 1968-03-28 Bosch Gmbh Robert Gear pump or motor

Also Published As

Publication number Publication date
US3746482A (en) 1973-07-17
DE2248490A1 (en) 1973-04-12
BR7206854D0 (en) 1973-08-21
FR2155573A5 (en) 1973-05-18
SE385315B (en) 1976-06-21
JPS4845908A (en) 1973-06-30
NO137213C (en) 1978-01-18
IT968641B (en) 1974-03-20
DE2248490C2 (en) 1984-03-22
FI54534B (en) 1978-08-31
NO137213B (en) 1977-10-10
FI54534C (en) 1978-12-11
CA964933A (en) 1975-03-25

Similar Documents

Publication Publication Date Title
GB1242192A (en) Improvements in or relating to rotary positive-displacement machines
GB1536317A (en) Rotary fluid-machine with labyrinth sealing
GB1365564A (en) Rotary piston compressors
CA961346A (en) Multistage centrifugal pump
ES440196A1 (en) Rotary compressor
GB1404782A (en) Seal member for a rotary piston engine
GB1284552A (en) Improvements in rotary-positive displacement fluid machines
GB1395385A (en) Rotary positive-displacement pump having discharge baffle means
GB1142156A (en) Improvements in or relating to rotary fluid pressure pumps and motors of the internally meshing n and n+1 tooth type
GB1419173A (en) Rotary positive displacement device
GB1464323A (en) Rotary positive-displacement pump or motor
GB1329947A (en) Hydraulic gear pumps
GB1155084A (en) Improvements relating to Rotary Fluid Pumps and Motors
GB1457514A (en) Gear pumps and motors
ES8407559A1 (en) Internal gear pump.
GB1378539A (en) Meshing screw-type compressors and motors
JPS6463682A (en) Scroll compressor
SE7501980L (en)
GB1301576A (en)
GB1238237A (en)
GB1438225A (en) Meshing screw rotor fluid-machine rotor
AU5912373A (en) Machines, including engines, compressors and pumps
GB1021000A (en) Rotary hydraulic pumps and motors
GB1294210A (en) Improvements in or relating to meshing screw-rotor machines for compressible fluids
GB1276181A (en) Improvements in or relating to fluid pumps and motors

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years