BRPI0604228A - reciprocating shaft sealing device - Google Patents

reciprocating shaft sealing device

Info

Publication number
BRPI0604228A
BRPI0604228A BRPI0604228A BRPI0604228A BR PI0604228 A BRPI0604228 A BR PI0604228A BR PI0604228 A BRPI0604228 A BR PI0604228A BR PI0604228 A BRPI0604228 A BR PI0604228A
Authority
BR
Brazil
Prior art keywords
sealed
fluid
sealing device
frictional
edge
Prior art date
Application number
Other languages
Portuguese (pt)
Inventor
Shinobu Munekata
Original Assignee
Nok Corp
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 Nok Corp filed Critical Nok Corp
Priority to BRPI0604228-7A priority Critical patent/BRPI0604228B1/en
Publication of BRPI0604228A publication Critical patent/BRPI0604228A/en
Publication of BRPI0604228B1 publication Critical patent/BRPI0604228B1/en

Links

Landscapes

  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Devices (AREA)

Abstract

DISPOSITIVO DE VEDAçãO PARA EIXO ALTERNATIVO. Um objetivo da presente invenção é prover um dispositivo de vedação para um eixo alternativo, no qual uma força de fricção para o eixo alternativo possa ser estabilizada sem afetar a sua capacidade de vedação. O dispositivo de vedação compreende uma borda principal 11, cuja inteira periferia da mesma contata de uma forma deslizável e apertada uma superfície periférica externa de um eixo 2 que faz um movimento alternativo na direção axial; e uma borda friccional 13 que se estende para o lado do espaço vedado A a partir da borda principal 11 e que também contata de uma forma deslizável e apertada a superfície periférica externa do eixo 2 em uma condição de permitir a circulação do fluido a ser vedado. A força de fricção da borda principal 11 com relação ao eixo alternativo 2 varia em função da pressão do fluido a ser vedado no espaço vedado A. Por outro lado, a borda friccional 13 permite a circulação do fluido a ser vedado. Deste modo, quanto à borda friccional 13, a força de fricção não varia em função da pressão do fluido a ser vedado, e a superfície deslizante é lubrificada com o fluido a ser vedado. Sendo assim, a redução da força de fricção em função de uma abrasão pode ser controlada.ALTERNATIVE SHAFT SEALING DEVICE. An object of the present invention is to provide an alternative shaft sealing device in which an frictional force for the alternative shaft can be stabilized without affecting its sealing ability. The sealing device comprises a leading edge 11, the entire periphery of which seals slidably and tightly contacts an external peripheral surface of an axis 2 which alternates in the axial direction; and a frictional edge 13 extending to the sealed space side A from the leading edge 11 and also slidably and tightly contacting the outer peripheral surface of the shaft 2 in a condition to permit circulation of the fluid to be sealed . The frictional force of the leading edge 11 relative to the reciprocating shaft 2 varies depending on the pressure of the fluid to be sealed in the sealed space A. On the other hand, the frictional edge 13 allows the fluid to be sealed to circulate. Thus, with respect to frictional edge 13, the frictional force does not vary depending on the pressure of the fluid to be sealed, and the sliding surface is lubricated with the fluid to be sealed. Thus, the reduction in frictional force due to abrasion can be controlled.

BRPI0604228-7A 2006-10-03 2006-10-03 ALTERNATIVE AXLE SEALING DEVICE BRPI0604228B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0604228-7A BRPI0604228B1 (en) 2006-10-03 2006-10-03 ALTERNATIVE AXLE SEALING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0604228-7A BRPI0604228B1 (en) 2006-10-03 2006-10-03 ALTERNATIVE AXLE SEALING DEVICE

Publications (2)

Publication Number Publication Date
BRPI0604228A true BRPI0604228A (en) 2008-05-20
BRPI0604228B1 BRPI0604228B1 (en) 2020-09-29

Family

ID=39386225

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0604228-7A BRPI0604228B1 (en) 2006-10-03 2006-10-03 ALTERNATIVE AXLE SEALING DEVICE

Country Status (1)

Country Link
BR (1) BRPI0604228B1 (en)

Also Published As

Publication number Publication date
BRPI0604228B1 (en) 2020-09-29

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according art. 34 industrial property law
B06U Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 29/09/2020, OBSERVADAS AS CONDICOES LEGAIS.