GB1364172A - Induction heating device - Google Patents

Induction heating device

Info

Publication number
GB1364172A
GB1364172A GB679172A GB679172A GB1364172A GB 1364172 A GB1364172 A GB 1364172A GB 679172 A GB679172 A GB 679172A GB 679172 A GB679172 A GB 679172A GB 1364172 A GB1364172 A GB 1364172A
Authority
GB
United Kingdom
Prior art keywords
inductor
carrier
induction heating
single turn
primary
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
GB679172A
Inventor
J C Lewis
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.)
Park Ohio Holdings Inc
Original Assignee
Park Ohio Industries 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 Park Ohio Industries Inc filed Critical Park Ohio Industries Inc
Publication of GB1364172A publication Critical patent/GB1364172A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1364172 Induction heating PARKOHIO INDUSTRIES Inc 14 Feb 1972 [9 June 1971] 6791/72 Heading H5H An induction heating device comprises a fixed multi-turn primary winding 20 surrounding a single turn secondary winding 60 mounted at one end of an insulating carrier 50 and connected by leads 70, 72 to a single turn inductor 80 mounted at the other end of the insulating carrier 50, and means, e.g. a double acting pneumatic cylinder 110, for moving the carrier 50, the secondary 60 and the inductor 80 axially towards and away from a workpiece A. The secondary winding 60 comprises a single turn hollow sheet structure provided with a circumferential baffle 92 and an axially extending baffle (not shown) which direct coolant from an inlet 90 in the direction of the arrows so that the secondary and the inductor 80 are cooled. As shown, the inductor 80 is used to heat, prior to quenching, a conical valve seat 10 of an engine block A. In a modification (Fig. 5, not shown) the inductor 80 is much closer to the secondary 60. By using a fixed primary it is possible to use several carriers carrying appropriate secondaries and inductors for heating different types of valve seats. Indexing means are provided for moving the carrier into position with the primary before being moved into heating relationship with the valve seat.
GB679172A 1971-06-09 1972-02-14 Induction heating device Expired GB1364172A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15149671A 1971-06-09 1971-06-09

Publications (1)

Publication Number Publication Date
GB1364172A true GB1364172A (en) 1974-08-21

Family

ID=22539027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB679172A Expired GB1364172A (en) 1971-06-09 1972-02-14 Induction heating device

Country Status (9)

Country Link
US (1) US3696224A (en)
AU (1) AU432404B2 (en)
BR (1) BR7200656D0 (en)
CA (1) CA922790A (en)
DE (1) DE7143333U (en)
FR (1) FR2140987A5 (en)
GB (1) GB1364172A (en)
IT (1) IT945043B (en)
SE (1) SE379784B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU455199B2 (en) * 1971-06-09 1974-11-21 Park-Ohio Industries Inc. Apparatus for inductively heating valve seats
US3761669A (en) * 1972-12-01 1973-09-25 Park Ohio Industries Inc Method and apparatus for inductively heating valve seats
US3789180A (en) * 1972-12-26 1974-01-29 Park Ohio Industries Inc Modified inductor for inductively heating valve seats
US4538041A (en) * 1983-08-24 1985-08-27 Park-Ohio Industries, Inc. Rotating induction heating apparatus
US4535212A (en) * 1984-07-06 1985-08-13 Tocco, Inc. Apparatus and method of hardening valve seats
US4700036A (en) * 1985-06-24 1987-10-13 Tocco, Inc. Induction heating device with improved locking mechanism for slidable inductors

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2256873A (en) * 1935-11-21 1941-09-23 Howard E Somes Inside induction heater
US2281297A (en) * 1936-08-17 1942-04-28 Budd Induction Heating Inc Induction heat treating apparatus
US2223902A (en) * 1936-08-20 1940-12-03 Howard E Somes Transformer distributing system
US2241431A (en) * 1938-04-21 1941-05-13 Howard E Somes Electric coil and core therefor
US2496950A (en) * 1946-07-31 1950-02-07 Western Electric Co High-frequency heating apparatus for sequentially brazing a plurality of parts in a protective atmosphere
US2757268A (en) * 1953-04-21 1956-07-31 Westinghouse Electric Corp Electrical heating apparatus
US2764660A (en) * 1954-03-30 1956-09-25 Gen Electric Induction heating apparatus
BE687273A (en) * 1966-09-23 1967-03-23 Acec Heating inductor
DE1583332C2 (en) * 1967-11-14 1973-11-29 Aeg-Elotherm Gmbh, 5630 Remscheidhasten Inductor for surface hardening of stub shafts of very different lengths according to the total surface circulation process

Also Published As

Publication number Publication date
CA922790A (en) 1973-03-13
AU432404B2 (en) 1973-02-22
US3696224A (en) 1972-10-03
BR7200656D0 (en) 1973-05-03
SE379784B (en) 1975-10-20
FR2140987A5 (en) 1973-01-19
AU3571871A (en) 1973-02-22
IT945043B (en) 1973-05-10
DE7143333U (en) 1972-02-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee