GB799337A - Improvements in rotary motors of the roots blower type - Google Patents

Improvements in rotary motors of the roots blower type

Info

Publication number
GB799337A
GB799337A GB112056A GB112056A GB799337A GB 799337 A GB799337 A GB 799337A GB 112056 A GB112056 A GB 112056A GB 112056 A GB112056 A GB 112056A GB 799337 A GB799337 A GB 799337A
Authority
GB
United Kingdom
Prior art keywords
rotor
laminations
reduce
roots blower
rotors
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
GB112056A
Inventor
Costin Lane Densham
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.)
WADE ENGINEERING Ltd
Original Assignee
WADE ENGINEERING Ltd
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 WADE ENGINEERING Ltd filed Critical WADE ENGINEERING Ltd
Priority to GB112056A priority Critical patent/GB799337A/en
Publication of GB799337A publication Critical patent/GB799337A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons

Abstract

799,337. Rotary engines. WADE ENGINEERING, Ltd. Jan. 14, 1957 [Jan. 12, 1956], No. 1120/56. Class 110 (2). In a Roots blower or motor the heat capacity of the rotors 2 is reduced by building them up from laminations of sintered metal placed face to face along the axis of the rotor. The object is to reduce the maximum temperature reached by the shafts and bearings when the unit is stationary after a period of running. The laminations are each pierced by openings 12 to further reduce the volume of metal in the rotors which are driven from the shaft 8 by the keys 14, there being a number of keyways 16 in the rotor to reduce the area of contact and hence the heat transfer between the rotor and the shaft. In a modification the rotor is built of from plain flat laminations and in a further modification the laminations are shaped as a thin web with a thickening around a central hole and around the rim.
GB112056A 1956-01-12 1956-01-12 Improvements in rotary motors of the roots blower type Expired GB799337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB112056A GB799337A (en) 1956-01-12 1956-01-12 Improvements in rotary motors of the roots blower type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB112056A GB799337A (en) 1956-01-12 1956-01-12 Improvements in rotary motors of the roots blower type

Publications (1)

Publication Number Publication Date
GB799337A true GB799337A (en) 1958-08-06

Family

ID=9716506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB112056A Expired GB799337A (en) 1956-01-12 1956-01-12 Improvements in rotary motors of the roots blower type

Country Status (1)

Country Link
GB (1) GB799337A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944714A1 (en) * 1979-11-06 1981-05-14 Helmut 1000 Berlin Karl Helical rotor pump or compressor - has rotors and stator assembled from series of discs to give required profile
GB2208174A (en) * 1987-07-07 1989-03-08 Fuji Heavy Ind Ltd Roots blower
EP0477601A1 (en) * 1990-09-28 1992-04-01 Leybold Aktiengesellschaft Method of making a rotor for a vacuum pump and rotor made according to this method
GB2292421A (en) * 1994-08-16 1996-02-21 Concentric Pumps Ltd Gerotor pumps
DE10338180B3 (en) * 2003-08-17 2005-04-28 Erich Roos Extruder screw manufacture involves assembling a stack of contored metal plates with spacers between on a screw shaft
US20170101989A1 (en) * 2014-03-12 2017-04-13 Eaton Corporation Methods for making a low inertia laminated rotor
US10208656B2 (en) 2012-11-20 2019-02-19 Eaton Intelligent Power Limited Composite supercharger rotors and methods of construction thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944714A1 (en) * 1979-11-06 1981-05-14 Helmut 1000 Berlin Karl Helical rotor pump or compressor - has rotors and stator assembled from series of discs to give required profile
GB2208174A (en) * 1987-07-07 1989-03-08 Fuji Heavy Ind Ltd Roots blower
EP0477601A1 (en) * 1990-09-28 1992-04-01 Leybold Aktiengesellschaft Method of making a rotor for a vacuum pump and rotor made according to this method
GB2292421A (en) * 1994-08-16 1996-02-21 Concentric Pumps Ltd Gerotor pumps
GB2292421B (en) * 1994-08-16 1998-04-22 Concentric Pumps Ltd Gerotor pumps
DE10338180B3 (en) * 2003-08-17 2005-04-28 Erich Roos Extruder screw manufacture involves assembling a stack of contored metal plates with spacers between on a screw shaft
US10208656B2 (en) 2012-11-20 2019-02-19 Eaton Intelligent Power Limited Composite supercharger rotors and methods of construction thereof
US20170101989A1 (en) * 2014-03-12 2017-04-13 Eaton Corporation Methods for making a low inertia laminated rotor

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