CS205459B1 - Equipment for sound deadening of air-cooled engines - Google Patents
Equipment for sound deadening of air-cooled engines Download PDFInfo
- Publication number
- CS205459B1 CS205459B1 CS881478A CS881478A CS205459B1 CS 205459 B1 CS205459 B1 CS 205459B1 CS 881478 A CS881478 A CS 881478A CS 881478 A CS881478 A CS 881478A CS 205459 B1 CS205459 B1 CS 205459B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- air
- equipment
- cooled engines
- ribs
- engine
- Prior art date
Links
- 238000013016 damping Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- UVKZSORBKUEBAZ-UHFFFAOYSA-N cyclizine Chemical compound C1CN(C)CCN1C(C=1C=CC=CC=1)C1=CC=CC=C1 UVKZSORBKUEBAZ-UHFFFAOYSA-N 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- AAOVKJBEBIDNHE-UHFFFAOYSA-N diazepam Chemical compound N=1CC(=O)N(C)C2=CC=C(Cl)C=C2C=1C1=CC=CC=C1 AAOVKJBEBIDNHE-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Zariadenie na tlmenie hluku vzduchom chladených motorovNoise control device for air-cooled engines
Vynález aa týká zariadenia na tlaenie hluku vzduchom chladených motorov, ktoré je vhodné najmi pre motorové vozidlá.The invention aa relates to a device for reducing the noise of air-cooled engines which is particularly suitable for motor vehicles.
Tlaenie hluku vzduchom chladených motorov je v značnej miere podmienené obmedzenim egvenla chladiaeich rebier. Ohmedzenie chvenia ehladiacleh rebier výstužnými rebrami, kolmými na směr prúdenia chladiaceho vzduchu, nekomplikuje odlievanie hláv ani valeov aotora, účinnost obmedzenia chvenia je však nedostatočná, nakolko narastajúca výška takýchto výstužných rebier zhoršuje chladenie aotora. Výstužné rebrá, orientované v smere prúdenia chladiaceho vzduchu, komplikujú odlievanie valcov a v niektorých prlpadoch i hláv valeov, čita narastajú výrodné náklady, pričom je i vtedy potrevné použit' tlaenie hluku orebrovanýeh ploch vkládáním pryžových tlalacich elementov medzi chladiaee rebrá. Použitie jednoducho vyrobitelných tlmiacich elementov, ako'sú pryžové hadice, pásy apod., vyžaduje nákladné a dodatočné praené úpravy orebrovanej plochy, pokial' nemá byt narušený vzhlad motora. Speciálně vyrábané tlmiace elementy nevyžadujúee úpravy orebrovanej plochy bez narušenia vzhTadu motora, aú nákladné. Tlmiaca elementy nie aú využité súčasne na tlmenia iných chvejúcich aa částí motora,resp. příslušenstva.The noise reduction of air-cooled engines is largely due to the limitation of the cooling fins. Limiting the vibration of the ribs by stiffening ribs perpendicular to the direction of flow of the cooling air does not complicate the casting of the heads or the vaults of the motor, but the effectiveness of the vibration reduction is insufficient as the height of such reinforcing ribs deteriorates the cooling of the motor. The stiffening ribs oriented in the direction of the cooling air flow complicate the casting of the cylinders and, in some cases, also the heads of the girders, increasing the cost of production, while still using noise suppression or ribbed surfaces by inserting rubber pressure elements between the fins. The use of easy-to-make damping elements, such as rubber hoses, belts and the like, requires costly and additionally roasted modifications of the ribbed surface, unless the appearance of the engine is to be impaired. Specially manufactured damping elements do not require modification of the ribbed surface without disturbing the appearance of the engine, which is expensive. The damping elements are not used simultaneously for damping other trembling and engine parts, respectively. accessories.
Tieto nevýhody odstraňuje tlmenie hluku vzduchom chladených motorov podlá vynálezu, podstata ktorého je v tom, že medzi erehrovanou plochou hlavy a chladiacíai rebrami valea aú zovreté tlmiace elementy z pružné poddajného materiálu, pričom tlmiace elementy aú opatřené priebežnou dutinou a do priebežnej dutiny najmenej jedného tlmiaceho elementu zasahuje vyústenie odkvapovej misky karburátore.These disadvantages are eliminated by the noise damping of the air-cooled engines according to the invention, characterized in that the damping elements are provided between the rebated head surface and the cooling ribs of the flexible flexible material, the damping elements being provided with a continuous cavity and into the continuous cavity of at least one damping element. affects the mouth of the drip tray carburetor.
Výhody tlmenia hluku vzduchom chladeného motora podlá vynálezu sú v jednoduchom a účinnom tlmeni chvenia spáaobom nevyžadujúcim dodatočné úpravy orebrovanej plochy preThe advantages of the air-cooled engine noise damping according to the invention are in a simple and efficient vibration damping, requiring no additional treatment of the ribbed surface for
205 459 zavodonle tlmiaeleh elementov a nenanruáujúcim vzhlad motora, pričom je možaé použit* božné dostupných a ťahko vyrábatolaýoh pružiacich elementov, napr. pryžové hadice roznýeh profilov apod. U motorov, ktorýoh oa valoa je bliska horizontálněj rovině, možnn nlektorý z pružnýoh elementov využit na odvod paliva, vytekajúeeho z karburátore neteanoetami a pri proplavování. Tým je rebrovani plocha hlavy a valoa obráněni před znečisťováním boa oaobitného odvodu unikajúoeho paliva a boa narúiania vzhíadu motora. Súčasne jo utlmené i ohvenio odkapovoj niaky karburátore.205 459, with damping elements and an unobtrusive appearance of the engine, and it is possible to use commercially available and easily manufactured spring elements, e.g. rubber hoses for spreading profiles etc. For engines that are close to the horizontal plane, some of the elastic elements may be used to drain fuel leaking from the carburetor through the neteanoet and through the float. As a result, the ribbed surface of the head and the barrel are prevented from contaminating the booster and the leak of fuel leakage and the appearance of the engine. At the same time, the attenuation and ohvenio odkapovoj some carburetor.
Přiklad tlmenie hluku vaduohom ehladoného motora podlá vynálezu jo znázorněný na připojených výkroaooh, kde obr. 1 pradatavuje bočný poklad na hlavu a valen a»tóra a čiaatočným rozom v mieste tlmiaeeho elembntu, obr. 2 pozdlzny horizontálny raz časton motora.An example of a noise attenuation in a smooth engine according to the invention is shown in the attached drawing where FIG. 1 adds a lateral treasure to the head and the barrel and the torah and an initial dimension at the location of the damping member; FIG. 2 shows a longitudinal horizontal part of the engine.
Hlava 2 a valeo 1 aú prlakrutkované pomooou avornlkov 11 k teleau akrlno 18 motora. Medzi rebrovanou plochou 3 hlavy 2 a chladiaclml rebrami 4 valoa 1 motora, aú zovreté tlmiaoe elementy 8, z pružné poddajného materiálu, opatřená priehežnou dutinou 8. Do priebežaoj dutiny 8 tlmiaeeho elementu 5 je zavedené vyústěni· 9 odkvapovej misky 8 karburátora 7. Zavádzaoia drážka 10 pr· zafixovaní· polohy tlmiaeleh elomontov 8, jo vytvořená v hlavo 2. Tlmiaoe olomonty 5 taktiež vyvolávajú vírenio chladiaooho vzduohu, protekajúcoho medzi ohladiaolmi rebrami 4, ktoré zvyáujo prostup topla a povrehn ohladiacích rebier 4 do ovzduáia.The head 2 and the valeo 1 are screwed together by means of the motor 11 to the engine 18. Between the rib face 3 of the head 2 and the cooling fins 4 of the engine cylinder 1 are clamped damping elements 8, made of a resilient flexible material, provided with a transparent cavity 8. The orifice 9 of the carburetor gutter 7 is introduced into the cavity 8 of the damping element 5. 10, in order to fix the position of the dampers 8, formed in the head 2. The dampers 5 also induce a whirlwind of cooling air flowing between the fins 4, which increases the passage of the furnace and the fins of the fins 4 into the air.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS881478A CS205459B1 (en) | 1978-12-22 | 1978-12-22 | Equipment for sound deadening of air-cooled engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS881478A CS205459B1 (en) | 1978-12-22 | 1978-12-22 | Equipment for sound deadening of air-cooled engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS205459B1 true CS205459B1 (en) | 1981-05-29 |
Family
ID=5439223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS881478A CS205459B1 (en) | 1978-12-22 | 1978-12-22 | Equipment for sound deadening of air-cooled engines |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS205459B1 (en) |
-
1978
- 1978-12-22 CS CS881478A patent/CS205459B1/en unknown
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