GB1488161A – Variable reluctance electric motor
– Google Patents
GB1488161A – Variable reluctance electric motor
– Google Patents
Variable reluctance electric motor
Info
Publication number
GB1488161A
GB1488161A
GB2929/74A
GB292974A
GB1488161A
GB 1488161 A
GB1488161 A
GB 1488161A
GB 2929/74 A
GB2929/74 A
GB 2929/74A
GB 292974 A
GB292974 A
GB 292974A
GB 1488161 A
GB1488161 A
GB 1488161A
Authority
GB
United Kingdom
Prior art keywords
rotor
poles
laminations
pole
stator
Prior art date
1974-01-22
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
GB2929/74A
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.)
CAV Ltd
Original Assignee
CAV 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.)
1974-01-22
Filing date
1974-01-22
Publication date
1977-10-05
1974-01-22
Application filed by CAV Ltd
filed
Critical
CAV Ltd
1974-01-22
Priority to GB2929/74A
priority
Critical
patent/GB1488161A/en
1975-01-20
Priority to US05/542,383
priority
patent/US3959672A/en
1975-01-21
Priority to SE7500615A
priority
patent/SE398801B/en
1975-01-22
Priority to FR7501983A
priority
patent/FR2258732B1/fr
1975-01-22
Priority to JP50008805A
priority
patent/JPS50113710A/ja
1977-10-05
Publication of GB1488161A
publication
Critical
patent/GB1488161A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K19/00—Synchronous motors or generators
H02K19/02—Synchronous motors
H02K19/10—Synchronous motors for multi-phase current
H02K19/103—Motors having windings on the stator and a variable reluctance soft-iron rotor without windings
Abstract
1488161 Electric motors CAV Ltd 15 Jan 1975 [22 Jan 1974] 02929/74 Heading H2A In a variable reluctance electric motor having at least three pairs of diametrically opposed stator poles 12 sequentially energized at least in pairs to cause rotation of a rotor 13 having two poles 14, each rotor pole has an extension 15, 16 on each of its circumferentially opposite sides, each extension having a smaller cross-section than the rotor pole face and each extending beyond the circumferential edge of a stator pole when the rotor pole is aligned with that stator pole. As shown in Fig. 1, the extensions 15, 16 extend to the edges of the next adjacent stator poles. The motor is thus reversible. The rotor may comprise a stack of laminations 17, Fig. 2, alternate laminations being offset in opposite directions so as to form a solid centre piece including the poles 14, and lateral extensions 15, 16 each including only half the number of laminations in the centre piece. Alternatively, the rotor may comprise three abutting laminated sections, Fig. 3 (not shown), the sections being angularly staggered but overlapping to form the rotor poles. In a modification, Fig. 4 (not shown) avoiding abrupt changes in the rotor pole face outline, the rotor laminations are progressively staggered.
GB2929/74A
1974-01-22
1974-01-22
Variable reluctance electric motor
Expired
GB1488161A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
GB2929/74A
GB1488161A
(en)
1974-01-22
1974-01-22
Variable reluctance electric motor
US05/542,383
US3959672A
(en)
1974-01-22
1975-01-20
Electric machines
SE7500615A
SE398801B
(en)
1974-01-22
1975-01-21
VARIABLE RELUCTION ENGINE
FR7501983A
FR2258732B1
(en)
1974-01-22
1975-01-22
JP50008805A
JPS50113710A
(en)
1974-01-22
1975-01-22
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB2929/74A
GB1488161A
(en)
1974-01-22
1974-01-22
Variable reluctance electric motor
Publications (1)
Publication Number
Publication Date
GB1488161A
true
GB1488161A
(en)
1977-10-05
Family
ID=9748726
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2929/74A
Expired
GB1488161A
(en)
1974-01-22
1974-01-22
Variable reluctance electric motor
Country Status (5)
Country
Link
US
(1)
US3959672A
(en)
JP
(1)
JPS50113710A
(en)
FR
(1)
FR2258732B1
(en)
GB
(1)
GB1488161A
(en)
SE
(1)
SE398801B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2167910A
(en)
*
1984-10-19
1986-06-04
Kollmorgen Tech Corp
Reluctance motors
Families Citing this family (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2120463B
(en)
*
1982-05-13
1985-12-11
Racal Mesl Microwave
Improvements in and relating to rotary actuators
US4587971A
(en)
*
1984-11-29
1986-05-13
North American Philips Corporation
Ultrasonic scanning apparatus
DE3522993A1
(en)
*
1985-06-27
1987-01-08
Bosch Gmbh Robert
ROTARY ANCHOR OF AN ELECTRIC ACTUATOR
US4899073A
(en)
*
1987-07-24
1990-02-06
Nippondenso Co., Ltd.
3-position rotational actuator
DE3736519A1
(en)
*
1987-10-28
1989-05-11
Standard Elektrik Lorenz Ag
DC GENERATOR WITH PERMANENT MAGNETIC STAND
NL8803148A
(en)
*
1988-12-23
1990-07-16
Philips Corp
DEVICE WITH AN ACTUATOR, A METHOD FOR APPLICATION IN THE DEVICE, AND A SYSTEM FOR CONTROLLING A GAS OR LIQUID FLOW, INCLUDING THE DEVICE.
FR2734963B1
(en)
*
1995-05-31
1997-08-01
Sonceboz Sa
ELECTROMAGNETIC ACTUATOR HAVING AT LEAST TWO STABLE POSITIONS BY MAGNETIC LOCKING
US6232693B1
(en)
1997-05-13
2001-05-15
Emerson Electric Co.
Switched reluctance motor having stator inserts for noise reduction, magnet positioning, and coil retention
US6198194B1
(en)
*
1999-09-17
2001-03-06
Trw Inc.
Segmented rotor for an electric machine
KR100408052B1
(en)
*
2001-01-22
2003-12-01
엘지전자 주식회사
Resonance type magnet motor
US7135947B2
(en)
*
2004-01-29
2006-11-14
Com Dev Ltd.
Hybrid microwave T-switch actuator
WO2009090744A1
(en)
*
2008-01-17
2009-07-23
Mitsubishi Electric Corporation
Three stable oscillating electromagnetic actuator
DE102013207017A1
(en)
2012-09-03
2014-03-06
Siemens Aktiengesellschaft
Non-salient pole rotor for electromotor for e.g. mill drive, has circle segments exhibiting segment height equal to half difference, and metal sheets laminated such that metal sheets are rotated relative to adjacent metal sheet at angle
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2108662A
(en)
*
1938-02-15
Gen Electric
Inductor dynamo-electric machine
US2767357A
(en)
*
1952-09-10
1956-10-16
Molyneux & Aspinwall Inc
Electromagnetic actuator
FR82903E
(en)
*
1962-02-05
1964-05-08
Improvements made to electric machines of the variable reluctance type
US3183387A
(en)
*
1962-06-05
1965-05-11
Barnes & Reinecke Inc
Generator
US3389281A
(en)
*
1965-08-23
1968-06-18
Lear Siegler Inc
Rotor for inductor alternator
1974
1974-01-22
GB
GB2929/74A
patent/GB1488161A/en
not_active
Expired
1975
1975-01-20
US
US05/542,383
patent/US3959672A/en
not_active
Expired – Lifetime
1975-01-21
SE
SE7500615A
patent/SE398801B/en
unknown
1975-01-22
FR
FR7501983A
patent/FR2258732B1/fr
not_active
Expired
1975-01-22
JP
JP50008805A
patent/JPS50113710A/ja
active
Pending
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2167910A
(en)
*
1984-10-19
1986-06-04
Kollmorgen Tech Corp
Reluctance motors
US4670696A
(en)
*
1984-10-19
1987-06-02
Kollmorgen Technologies Corporation
Variable speed variable reluctance electrical machines
GB2167910B
(en)
*
1984-10-19
1989-06-01
Kollmorgen Tech Corp
Variable speed variable reluctance electrical machines
Also Published As
Publication number
Publication date
SE7500615L
(en)
1975-07-23
SE398801B
(en)
1978-01-16
US3959672A
(en)
1976-05-25
FR2258732A1
(en)
1975-08-18
FR2258732B1
(en)
1981-03-27
JPS50113710A
(en)
1975-09-06
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Legal Events
Date
Code
Title
Description
1978-02-15
PS
Patent sealed [section 19, patents act 1949]
1987-09-09
PCNP
Patent ceased through non-payment of renewal fee
