SE461896B - LOW FREQUENCY SOUND GENERATOR GRILL - Google Patents
LOW FREQUENCY SOUND GENERATOR GRILLInfo
- Publication number
- SE461896B SE461896B SE8802451A SE8802451A SE461896B SE 461896 B SE461896 B SE 461896B SE 8802451 A SE8802451 A SE 8802451A SE 8802451 A SE8802451 A SE 8802451A SE 461896 B SE461896 B SE 461896B
- Authority
- SE
- Sweden
- Prior art keywords
- diaphragm
- electromagnet
- spring
- protective plate
- rear protective
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/07—Roasting devices for outdoor use; Barbecues
- A47J37/0704—Roasting devices for outdoor use; Barbecues with horizontal fire box
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/07—Roasting devices for outdoor use; Barbecues
- A47J37/0754—Roasting devices for outdoor use; Barbecues with blowers providing forced air circulation
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Baking, Grill, Roasting (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Description
461 10 15 20 25 896 uppfinningen, med utföringsexempel, skall nu förklaras närmare med hänvisning till bifogade ritningar, på vilka Fig 1 visar en principskiss över en infraljudsgrill Fig 2 är en sprängskiss som visar utformningen av infraljudgeneratorn Fig 1 visar en infraljudgrill med en behållare 1 i vars nedre del sitter en rost 2 där bränsle i form av företrädesvis träkol är upplagt. Ovanför rosten 2 sitter på lämplig höjd, gärna flyttbart, ett galler 3 där de matvaror som ska grillas placeras. l botten pà behållaren 1 finns en öppning som genom ett rör 4 leder ner till en askláda 5. Pà sidan av nämnda rör 4 finns en öppning som förbinder röret med ett annat horisontellt rör 6, på vilket i sin tur själva infraljudgeneratorn 7 sitter monterad. Eventuellt kan grillen även vara försedd med en urtag vid behàllarens botten för anslutning av en gasolbehàllare eller dylikt vilken används vid tändning av grillen. Själva infraljudgeneratorn drivs elektriskt, för utomhusgrillar företrädesvis med hjälp av batterier. The invention, with exemplary embodiments, will now be explained in more detail with reference to the accompanying drawings, in which Fig. 1 shows a principle sketch of an infrasound grill Fig. 2 is an exploded view showing the design of the infrasound generator. Fig. 1 shows an infrasound grill with a container 1 in the lower part of which is a grate 2 where fuel in the form of preferably charcoal is stored. Above the grate 2 is a suitable height, preferably movable, a grid 3 where the food to be grilled is placed. At the bottom of the container 1 there is an opening which through a tube 4 leads down to an ash box 5. On the side of said tube 4 there is an opening which connects the tube to another horizontal tube 6, on which in turn the infrasound generator 7 itself is mounted. Optionally, the grill can also be provided with a recess at the bottom of the container for connecting a LPG container or the like which is used when lighting the grill. The infrasound generator itself is electrically powered, for outdoor grills preferably with the help of batteries.
Fig 2 visar infraljudgeneratorn. På infraljudgeneratorn finns en stos 8 via vilken infraljudgeneratorn ansluts till infraljudgrillens horisontella rör 6. Pà stosen 8 sitter en frontplàt 9 vilken har formen av en stympad kon. Genom denna utformning minskas luftmotståndet när luft så småningom ska passera ut genom stosen 8. Via ett svep 10 är frontpláten förbunden med en bakre skyddsplàt 11 som även den kan ha formen av en stympad kon eller vara i det närmaste platt med en lätt buktande yta vänd från svepet. Den bakre skyddsplåten är försedd med urtag 12 för att luft ska kunna passera. Innanför svepet 10 är ett lufttätt tyg 13 fäst. Detta tyg är dels fäst vid frontplátens 9 mot svepet 10 vända ände och dels fäst vid ett membran 14 monterat vid 10 15 20 25 461 896 svepets mot den bakre skyddsplåten 11 vända ände. Mellan membranet 14 och den bakre skyddsplåten 11 är även belägna tvá korslagda bladfjädrar 15 och 16. Dessa bladfjädrar är särskilt utvalda för att ge ha en viss egenfrekvens.Fig. 2 shows the infrasound generator. On the infrasound generator there is a socket 8 via which the infrasound generator is connected to the horizontal tube 6 of the infrasound grill. On the spigot 8 there is a front plate 9 which has the shape of a truncated cone. Due to this design, the air resistance is reduced when air will eventually pass out through the nozzle 8. Via a sweep 10, the front plate is connected to a rear protective plate 11, which can also have the shape of a truncated cone or be almost flat with a slightly curved surface facing from the sweep. The rear protection plate is provided with recess 12 so that air can pass. Inside the wrap 10, an airtight fabric 13 is attached. This fabric is partly attached to the end of the front plate 9 facing the sweep 10 and partly attached to a membrane 14 mounted at the end of the sweep towards the rear protective plate 11. Between the diaphragm 14 and the rear protective plate 11 are also located two crossed leaf springs 15 and 16. These leaf springs are specially selected to give a certain natural frequency.
Som fäste för bladfjädrarna finns inuti den bakre skyddsplåten en distansring 17 monterad. Bladfjädrarna kan lämpligen skruvas fast i denna distansring.As a bracket for the leaf springs, a spacer ring 17 is mounted inside the rear protective plate. The leaf springs can conveniently be screwed into this spacer ring.
Längst ut på den bakre skyddsplàtens 11 stympade ände eller buktande yta sitter en elektromagnet 18. Genom särskild styrelektronik kan plungen 19 i elektromagneten drivas fram och äter med en frekvens som i det närmaste överensstämmer med frekvensen för bladfjädramas 15 och 16 egensvängning.At the far end of the truncated end or curved surface of the rear protection plate 11 is an electromagnet 18. By means of special control electronics, the plunger 19 in the electromagnet can be driven forward and eats at a frequency which almost corresponds to the frequency of the leaf springs 15 and 16.
Att dessa båda frekvenser överensstämmer i så hög grad som möjligt är önskvärt för att systemet ska dra så lite effekt som möjligt. Från elektro- magnetens plunge 19 går en länk 20 vilken är fäst i membranet 14. När elektromagneten slås på och plungen 19 börjar sin fram- och återgående rörelse bibringas membranet en svängande rörelse via länken 20. Länken 20 kan vara av gummi eller annat lämpligt material och bör ha en viss g flexibilitet för att kunna ta upp eventuella oregelbundenheter i membranets svängning så att dessa inte fortplantas till plungen 19. lnfraljudgeneratom fungerar på följande sätt. I viloläget, dvs när elektromagneten ej är påslagen, befinner sig plungen delvis utdragen ur magnetkäman med hjälp av fjäderkraften i bladfjädrarna 15 och 16. När magneten slås pä strävar den efter att dra in plungen in i kärnan och via länken 20 förflyttas därmed bladfjädrarna och membranet 14 från sitt t viloläge mot magneten. En förutsättning för att fjädrar och membran ska kunna röra sig är att luft kan passera ut och in genom de häl som finns iden bakre skyddsplåten. När strömmen till elektromagneten slås av dras plungen ut ur käman med hjälp av tjäderkraften och bladfiädrar och membran fjädrar 461 896 10 tillbaka och förbi sitt viloläge. Den luft som befinner sig mellan membranet och stosen pressas därvid ut genom stosen och in i grillens horisontella rör 6.That these two frequencies correspond as much as possible is desirable for the system to draw as little power as possible. From the plunger 19 of the electromagnet goes a link 20 which is attached to the diaphragm 14. When the electromagnet is turned on and the plunger 19 begins its reciprocating movement, the diaphragm is imparted a pivoting movement via the link 20. The link 20 may be of rubber or other suitable material. and should have a certain amount of flexibility in order to be able to absorb any irregularities in the oscillation of the diaphragm so that these do not propagate to the plunger 19. The internal sound generator operates in the following manner. In the rest position, ie when the electromagnet is not switched on, the plunger is partially pulled out of the magnetic core by means of the spring force in the leaf springs 15 and 16. When the magnet is turned on, it tends to pull the plunger into the core and via the link 20 the leaf springs and diaphragm are moved. 14 from its t rest position against the magnet. A prerequisite for springs and diaphragms to be able to move is that air can pass in and out through the heels located in the rear protective plate. When the current to the electromagnet is switched off, the plunger is pulled out of the core by means of the capercaillie force and leaf springs and diaphragm springs 461 896 10 back and past its rest position. The air located between the membrane and the nozzle is thereby forced out through the nozzle and into the horizontal tube 6 of the grill.
Denna rörelsesekvens upprepas genom att elektromagneten och plungens rörelse regleras av den elektroniska styrenheten. Pà så sätt erhålls en svängningsrörelse hos membranet 14 och upprepade luftpulser alstras med en viss låg frekvens, företrädesvis under 20 Hz, och dessa påverkar för- bränningen av träkolet på rosten 2 så att en pulserande förbränning erhålls och temperaturen ökar. Svängningen hos membranet 14 förstärks av att bladfjädrarna 15 och' 16 svänger med.This sequence of movements is repeated by the electromagnet and the movement of the plunger being regulated by the electronic control unit. In this way an oscillating movement of the diaphragm 14 is obtained and repeated air pulses are generated with a certain low frequency, preferably below 20 Hz, and these affect the combustion of the charcoal on the grate 2 so that a pulsating combustion is obtained and the temperature increases. The oscillation of the diaphragm 14 is amplified by the fact that the leaf springs 15 and 16 rotate with it.
Anordningen enligt uppfinningen kan naturligtvis inte bara användas vid grillar utan även vid andra anordningar där en liten och föga utrymmes- krävande lágfrekvensljudgenerator är önskvärd.The device according to the invention can of course not only be used for grills but also for other devices where a small and space-consuming low-frequency sound generator is desired.
Claims (9)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8802451A SE461896B (en) | 1988-06-29 | 1988-06-29 | LOW FREQUENCY SOUND GENERATOR GRILL |
JP50708989A JPH03505423A (en) | 1988-06-29 | 1989-06-27 | Especially for grills, low frequency sound generator |
PCT/SE1989/000367 WO1990000093A1 (en) | 1988-06-29 | 1989-06-27 | Low frequency sound generator, especially for grills |
AU38447/89A AU626894B2 (en) | 1988-06-29 | 1989-06-27 | Low frequency sound generator, especially for grills |
EP19890907363 EP0428533A1 (en) | 1988-06-29 | 1989-06-27 | Low frequency sound generator, especially for grills |
CA000604233A CA1313980C (en) | 1988-06-29 | 1989-06-28 | Low-frequency sound generator, especially for grills |
NZ22977089A NZ229770A (en) | 1988-06-29 | 1989-06-29 | Woofer as combustion improver |
ES898902302A ES2014705A6 (en) | 1988-06-29 | 1989-06-29 | Low frequency sound generator, especially for grills. |
DK290990A DK290990A (en) | 1988-06-29 | 1990-12-06 | LOW FREQUENCY SOUND GENERATOR, ISAAS FOR GRILL |
FI906392A FI906392A0 (en) | 1988-06-29 | 1990-12-21 | LAOGFREKVENSTONGENERATOR I SYNNERHET FOER GRILLAR. |
NO905637A NO905637D0 (en) | 1988-06-29 | 1990-12-28 | LOW FREQUENCY SOUND GENERATOR, SPECIAL FOR GRILLS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8802451A SE461896B (en) | 1988-06-29 | 1988-06-29 | LOW FREQUENCY SOUND GENERATOR GRILL |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8802451D0 SE8802451D0 (en) | 1988-06-29 |
SE8802451L SE8802451L (en) | 1989-12-30 |
SE461896B true SE461896B (en) | 1990-04-09 |
Family
ID=20372776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8802451A SE461896B (en) | 1988-06-29 | 1988-06-29 | LOW FREQUENCY SOUND GENERATOR GRILL |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0428533A1 (en) |
JP (1) | JPH03505423A (en) |
AU (1) | AU626894B2 (en) |
CA (1) | CA1313980C (en) |
DK (1) | DK290990A (en) |
ES (1) | ES2014705A6 (en) |
FI (1) | FI906392A0 (en) |
NZ (1) | NZ229770A (en) |
SE (1) | SE461896B (en) |
WO (1) | WO1990000093A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE540254C2 (en) | 2016-10-31 | 2018-05-15 | Olsson Mats | An infrasound generator for enhancing the combustion of solid fuels |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1173708A (en) * | 1915-09-23 | 1916-02-29 | Henry M Chance | Method for burning fuel. |
SE412635B (en) * | 1977-02-17 | 1980-03-10 | Enerus Erik Oscar | SET FOR COMBUSTION OF SOLID, LIQUID OR GASFUL FUELS |
DE3367336D1 (en) * | 1982-07-01 | 1986-12-11 | Eppendorf Geraetebau Netheler | Method for mixing fluid samples to be analysed |
SE8306652D0 (en) * | 1983-12-02 | 1983-12-02 | Insako Kb | METHOD AND APPARATUS FOR ACTIVATING LARGE |
JPS62231663A (en) * | 1986-04-01 | 1987-10-12 | 林原 健 | Vibration stimulation apparatus |
IT1205507B (en) * | 1986-11-05 | 1989-03-23 | Electronsystem Spa | ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE |
-
1988
- 1988-06-29 SE SE8802451A patent/SE461896B/en not_active IP Right Cessation
-
1989
- 1989-06-27 AU AU38447/89A patent/AU626894B2/en not_active Ceased
- 1989-06-27 WO PCT/SE1989/000367 patent/WO1990000093A1/en not_active Application Discontinuation
- 1989-06-27 EP EP19890907363 patent/EP0428533A1/en not_active Withdrawn
- 1989-06-27 JP JP50708989A patent/JPH03505423A/en active Pending
- 1989-06-28 CA CA000604233A patent/CA1313980C/en not_active Expired - Fee Related
- 1989-06-29 NZ NZ22977089A patent/NZ229770A/en unknown
- 1989-06-29 ES ES898902302A patent/ES2014705A6/en not_active Expired - Lifetime
-
1990
- 1990-12-06 DK DK290990A patent/DK290990A/en not_active Application Discontinuation
- 1990-12-21 FI FI906392A patent/FI906392A0/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU626894B2 (en) | 1992-08-13 |
WO1990000093A1 (en) | 1990-01-11 |
SE8802451D0 (en) | 1988-06-29 |
EP0428533A1 (en) | 1991-05-29 |
ES2014705A6 (en) | 1990-07-16 |
DK290990A (en) | 1990-12-19 |
AU3844789A (en) | 1990-01-23 |
FI906392A0 (en) | 1990-12-21 |
NZ229770A (en) | 1991-08-27 |
DK290990D0 (en) | 1990-12-06 |
CA1313980C (en) | 1993-03-02 |
SE8802451L (en) | 1989-12-30 |
JPH03505423A (en) | 1991-11-28 |
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Legal Events
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NUG | Patent has lapsed |
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