DE3786451D1 - METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY. - Google Patents

METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY.

Info

Publication number
DE3786451D1
DE3786451D1 DE8787118985T DE3786451T DE3786451D1 DE 3786451 D1 DE3786451 D1 DE 3786451D1 DE 8787118985 T DE8787118985 T DE 8787118985T DE 3786451 T DE3786451 T DE 3786451T DE 3786451 D1 DE3786451 D1 DE 3786451D1
Authority
DE
Germany
Prior art keywords
microwave energy
comparisoning
food
heating
flap
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 - Fee Related
Application number
DE8787118985T
Other languages
German (de)
Inventor
Gerd Dr Naumann
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.)
Electrolux Juno Kuchentechnik GmbH
Original Assignee
Electrolux Juno Kuchentechnik GmbH
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 Electrolux Juno Kuchentechnik GmbH filed Critical Electrolux Juno Kuchentechnik GmbH
Priority to DE8787118985T priority Critical patent/DE3786451D1/en
Application granted granted Critical
Publication of DE3786451D1 publication Critical patent/DE3786451D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B6/64—Heating using microwaves
    • H05B6/70—Feed lines
    • H05B6/707—Feed lines using waveguides
    • 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
    • H05B6/64—Heating using microwaves
    • H05B6/74—Mode transformers or mode stirrers
    • H05B6/745—Rotatable stirrers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

At the top of a microwave oven (2), between the magnetron (1) and a top opening (6) for the microwave energy, is a horizontal waveguide (3) with the end (4) adjacent to the top opening closed. Inside this end is a flap (5) rotated about a horizontal axis immediately above the top opening so that the wave impedance is periodically altered. The flap which screens the closed end (4) is positioned between a quarter and a half wavelength from the end, preferably 0.375 of a wavelength. The flap alters the output frequency from 2.450 GHz to plus or minus 10 MHz.
DE8787118985T 1987-02-03 1987-12-21 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY. Expired - Fee Related DE3786451D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787118985T DE3786451D1 (en) 1987-02-03 1987-12-21 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873703133 DE3703133A1 (en) 1987-02-03 1987-02-03 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY
DE8787118985T DE3786451D1 (en) 1987-02-03 1987-12-21 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY.

Publications (1)

Publication Number Publication Date
DE3786451D1 true DE3786451D1 (en) 1993-08-12

Family

ID=6320098

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873703133 Withdrawn DE3703133A1 (en) 1987-02-03 1987-02-03 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY
DE8787118985T Expired - Fee Related DE3786451D1 (en) 1987-02-03 1987-12-21 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19873703133 Withdrawn DE3703133A1 (en) 1987-02-03 1987-02-03 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY

Country Status (3)

Country Link
EP (1) EP0277342B1 (en)
AT (1) ATE91375T1 (en)
DE (2) DE3703133A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818490A1 (en) * 1988-05-31 1989-12-07 Bosch Siemens Hausgeraete MICROWAVE HOUSEHOLD APPLIANCE
DE3843039A1 (en) * 1988-12-21 1990-06-28 Bosch Siemens Hausgeraete Domestic appliance
US6114677A (en) * 1996-06-03 2000-09-05 Matsushita Electric Industrial Co., Ltd. Microwave heating apparatus having a metal plate rotatably disposed in a wave guide
EP2187702A1 (en) * 2008-11-17 2010-05-19 Topinox Sarl Cooking device with microwave heating

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761942A (en) * 1952-06-06 1956-09-04 Raytheon Mfg Co Heating apparatus
GB752206A (en) * 1953-11-12 1956-07-04 Raytheon Mfg Co Improvements in or relating to high frequency dielectric heating apparatus
FR1208182A (en) * 1957-12-10 1960-02-22 Miwag Mikrowellen A G Device for generating a defined primary field distribution in a cavity for heating organic substances by means of microwave frequencies
CH393577A (en) * 1961-12-13 1965-06-15 Patelhold Patentverwertung Device for dielectric heating of materials
US3521019A (en) * 1968-02-19 1970-07-21 Varian Associates Microwave heating cavity with a venetian blind mode stirrer
SE345903B (en) * 1970-12-21 1972-06-12 Philips Svenska Ab
US4301347A (en) * 1980-08-14 1981-11-17 General Electric Company Feed system for microwave oven
US4336434A (en) * 1980-08-15 1982-06-22 General Electric Company Microwave oven cavity excitation system employing circularly polarized beam steering for uniformity of energy distribution and improved impedance matching

Also Published As

Publication number Publication date
EP0277342B1 (en) 1993-07-07
EP0277342A3 (en) 1988-08-31
DE3703133A1 (en) 1988-08-11
EP0277342A2 (en) 1988-08-10
ATE91375T1 (en) 1993-07-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee