SEALING DEVICE FOR WATER PUMP

PROBLEM TO BE SOLVED: To improve the lubricating performance of a seal lip sliding part to prevent seal lips from being prematurely worn by slidable movement in a sealing device for a water pump so fitted between a housing and a shaft that a sealing fluid such as an LLC does not leak from the inside...

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Bibliographic Details
Main Authors SATO YUKI, NAGASAWA SHINJI, YASUTSUE KAORU
Format Patent
LanguageEnglish
Published 07.08.2008
Subjects
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
PISTONS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To improve the lubricating performance of a seal lip sliding part to prevent seal lips from being prematurely worn by slidable movement in a sealing device for a water pump so fitted between a housing and a shaft that a sealing fluid such as an LLC does not leak from the inside to the outside of the device. SOLUTION: This sealing device comprises the seal lips 24, 34 and a grease-containing member 51 impregnated with a lip lubricating grease. The grease-containing member 51 is arranged in the space part 4 between the seal lips 24, 34. Also, the sealing device comprises a sleeve 11 secured to a shaft 3, first and second seal lips 24, 34 in sliding contact with the sleeve 11, a backup ring 41, and a grease-containing member 51. The grease-containing member 51 is arranged in the space part 4 between both seal lips 24, 34 at the radial gap part C where the sleeve 11 and the backup ring 41 are radially opposed to each other. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20070016190