BR0202541A - Spark plug - Google Patents
Spark plugInfo
- Publication number
- BR0202541A BR0202541A BR0202541A BR0202541A BR0202541A BR 0202541 A BR0202541 A BR 0202541A BR 0202541 A BR0202541 A BR 0202541A BR 0202541 A BR0202541 A BR 0202541A BR 0202541 A BR0202541 A BR 0202541A
- Authority
- BR
- Brazil
- Prior art keywords
- spark plug
- present
- vitrifier
- internal combustion
- addition
- Prior art date
Links
Landscapes
- Spark Plugs (AREA)
Abstract
"VELA DE IGNIçãO". A presente invenção refere-se à vela de ignição (100) utilizada para ignição de motores de combustão interna como motor de automóvel. A vela de ignição (100) no estado da técnica provida do isolador (2) à base de alumina com uma parte da superfície externa revestida da camada (2d) de vitrificante, abarca como componentes deste vitrificante o óxido de chumbo, e este por estar enquadrado nos metais pesados classificados pode trazer problemas ambientais no uso em larga escala. A presente invenção visa minimizar sua presença dentro da composição do vitrificante ou suprimir completamente com a substituição pelo uso dos vitrificantes à base de silicatos e boratos, que via de regra geram problemas no processo de fabricação e degeneração das características dielétricas e mecanicas para desempenho das suas funções como a vela de ignição (100) no motor de combustão interna. E a presente invenção com a adição de elementos dos metais alcalinos juntamente com outros elementos permitem abaixamento do ponto de amolecimento conseq³ente favorecimento da operação em relativa baixa temperatura, evitando-se incidência das falhas na camada (2d) do vitrificante e aparecimento de oxidação no castelo metálico (1) além de conferir as características para sua performance requeridas."Spark plug". The present invention relates to the spark plug (100) used for ignition of internal combustion engines as a car engine. The spark plug (100) in the state of the art provided with the alumina-based insulator (2) with a part of the outer surface coated with the vitrifying layer (2d) comprises lead oxide as components of this vitrifier, and this is because it is framed in classified heavy metals can bring environmental problems in large scale use. The present invention aims at minimizing its presence within the composition of the vitrifier or completely suppressing it with the substitution by the use of silicate and borate based vitrifiers, which as a rule generate problems in the manufacturing process and degeneration of the dielectric and mechanical characteristics for performance of their vitrification. functions such as the spark plug (100) in the internal combustion engine. And the present invention with the addition of alkali metal elements together with other elements allow lowering of the softening point consequently favoring operation at relatively low temperature, avoiding incidence of glazing layer (2d) failures and appearance of oxidation in the bonnet. metallic (1) in addition to conferring the required performance characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR0202541A BR0202541A (en) | 2002-06-20 | 2002-06-20 | Spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR0202541A BR0202541A (en) | 2002-06-20 | 2002-06-20 | Spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0202541A true BR0202541A (en) | 2004-05-18 |
Family
ID=32330762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0202541A BR0202541A (en) | 2002-06-20 | 2002-06-20 | Spark plug |
Country Status (1)
| Country | Link |
|---|---|
| BR (1) | BR0202541A (en) |
-
2002
- 2002-06-20 BR BR0202541A patent/BR0202541A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B10A | Cessation: cessation confirmed |
Free format text: REFERENCIA: CONFORME SOLICITADO ATRAVES DA PETICAO DEINPI/SP 018070025427 DE 26.04.2007. |