GB1030458A - Improvements in or relating to rotary fluid compressors - Google Patents
Improvements in or relating to rotary fluid compressorsInfo
- Publication number
- GB1030458A GB1030458A GB14266/65A GB1426665A GB1030458A GB 1030458 A GB1030458 A GB 1030458A GB 14266/65 A GB14266/65 A GB 14266/65A GB 1426665 A GB1426665 A GB 1426665A GB 1030458 A GB1030458 A GB 1030458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diameter
- rolling
- rotors
- profile
- rotor
- 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
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
- 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)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
1,030,458. Rotary compressors. MIDLANDROSS CORPORATION. April 5, 1965 [April 6, 1964], No. 14266/65. Heading F1F. A rotary fluid compressor of the "Roots" blower type in which a pair of lobed rotors disposed within a chamber on spaced parallel axes are rotatable in unison in opposite directions comprises rotors wherein each lobe profile is epicycloidal and generated by a point on the circumference of a rolling circle of diameter not greater than A, Fig. 3, rolling on a portion of the exterior of a base circle of diameter B and each recess profile is hypocycloidal and generated by a rolling circle of a diameter not less than A rolling on an inside adjacent portion of the same base circle and wherein A=B/2N where N is equal to the number of lobes, usually two, and in which the spacing between the rotor axes equals B. To permit of a satisfactory working clearance between the rotors and between a rotor and the casing, which is of circular profile and of a diameter D=B+B/N the diameter of the lobe rolling circle equals A-C and the diameter of the recess rolling circle equals A+C where C is of the order of 0À001B. The rotors can be accurately manufactured in dies from sintered metal powders. To ensure accuracy, the rotor profile is produced 100 times actual size on plywood and reduced to actual size by a pantograph to produce a template for the die-maker. Longitudinal cooling fins are provided on the casing body and transverse cooling fins on an end cover.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US357561A US3275225A (en) | 1964-04-06 | 1964-04-06 | Fluid compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1030458A true GB1030458A (en) | 1966-05-25 |
Family
ID=23406111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14266/65A Expired GB1030458A (en) | 1964-04-06 | 1965-04-05 | Improvements in or relating to rotary fluid compressors |
Country Status (3)
Country | Link |
---|---|
US (1) | US3275225A (en) |
DE (1) | DE1503579C3 (en) |
GB (1) | GB1030458A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999063228A1 (en) * | 1998-05-29 | 1999-12-09 | Ballard Power Systems Inc. | Rotary piston blower |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1703849B1 (en) * | 1968-07-18 | 1971-07-29 | Maag Zahnraeder & Maschinen Ag | Toothing for gear pump with auxiliary gear |
US4595349A (en) * | 1983-06-20 | 1986-06-17 | Eaton Corp. | Supercharger rotor, shaft, and gear arrangement |
JPS6075793A (en) * | 1983-09-30 | 1985-04-30 | Aisin Seiki Co Ltd | Root's blower |
JPH0121192Y2 (en) * | 1985-06-07 | 1989-06-23 | ||
JPH0623753Y2 (en) * | 1985-07-26 | 1994-06-22 | トヨタ自動車株式会社 | Roots pump |
CH667492A5 (en) * | 1985-08-31 | 1988-10-14 | Wankel Felix | INNER AXIS ROTARY PISTON. |
US4797078A (en) * | 1986-06-11 | 1989-01-10 | Wankel Gmbh | Bearing arrangement of an external-axial rotary piston blower |
JP2761233B2 (en) * | 1989-02-17 | 1998-06-04 | 富士重工業株式会社 | Roots type blower |
EP0472751B1 (en) * | 1990-08-27 | 1994-05-18 | Leybold Aktiengesellschaft | Rotor for a lobe rotor type vacuum pump |
US5228837A (en) * | 1992-09-30 | 1993-07-20 | The United States Of America As Represented By The Secretary Of The Navy | High pressure pump for electro-rheological fluids |
JPH10152509A (en) * | 1996-05-14 | 1998-06-09 | Mitsui Chem Inc | Vapor-phase polymerization and vapor-phase polymerization apparatus and blower therefor |
JPH10266982A (en) * | 1997-03-21 | 1998-10-06 | Tochigi Fuji Ind Co Ltd | Roots type fluid machine |
US6138646A (en) | 1997-07-18 | 2000-10-31 | Hansen; Craig N. | Rotary fluid mover |
JP4613811B2 (en) * | 2005-12-09 | 2011-01-19 | 株式会社豊田自動織機 | Roots fluid machinery |
JP2018168714A (en) * | 2017-03-29 | 2018-11-01 | 株式会社豊田自動織機 | Hydrogen circulation pump for fuel cell |
CN108153937A (en) * | 2017-12-03 | 2018-06-12 | 长春黄金研究院 | The design of shape line and processing method of a kind of two blade profiles rotor profile |
JP7213423B2 (en) * | 2019-07-24 | 2023-01-27 | 株式会社豊田自動織機 | electric roots pump |
US11085298B1 (en) * | 2020-12-03 | 2021-08-10 | Marlin Harold Thompson | Rotary internal combustion engine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US166295A (en) * | 1875-08-03 | Improvement in rotary pressure-blowers | ||
US2547392A (en) * | 1946-04-02 | 1951-04-03 | Myron F Hill | Continuous contact internal rotor for engines |
US2666336A (en) * | 1950-06-10 | 1954-01-19 | Hill Myron Francis | Internal gear teeth |
US2994277A (en) * | 1957-02-11 | 1961-08-01 | Merritt Henry Edward | Form and methods of manufacture of rotors for fluid pumps |
US2965039A (en) * | 1957-03-31 | 1960-12-20 | Morita Yoshinori | Gear pump |
US2988065A (en) * | 1958-03-11 | 1961-06-13 | Nsu Motorenwerke Ag | Rotary internal combustion engine |
US3089638A (en) * | 1958-12-01 | 1963-05-14 | Dresser Ind | Impellers for fluid handling apparatus of the rotary positive displacement type |
US3106166A (en) * | 1960-01-20 | 1963-10-08 | Waterous Co | Pretimed three-lobed rotary pump |
US3105634A (en) * | 1960-12-27 | 1963-10-01 | Polysius Gmbh | Rotary piston for a roots blower |
-
1964
- 1964-04-06 US US357561A patent/US3275225A/en not_active Expired - Lifetime
-
1965
- 1965-04-01 DE DE1503579A patent/DE1503579C3/en not_active Expired
- 1965-04-05 GB GB14266/65A patent/GB1030458A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999063228A1 (en) * | 1998-05-29 | 1999-12-09 | Ballard Power Systems Inc. | Rotary piston blower |
US6284397B1 (en) | 1998-05-29 | 2001-09-04 | Ballard Power Systems Inc. | Rotary piston blower for supplying an oxidant stream to a fuel cell |
Also Published As
Publication number | Publication date |
---|---|
DE1503579C3 (en) | 1975-02-20 |
DE1503579A1 (en) | 1970-03-19 |
DE1503579B2 (en) | 1974-07-04 |
US3275225A (en) | 1966-09-27 |
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