Axial sealing structure for throttle valve

The utility model discloses an axial sealing structure for a throttle valve, which comprises a throttle valve shaft (1), a check ring (11), a sealing ring assembly and a fixed bearing (13) are arranged on the throttle valve shaft (1), and a check ring hole (21), a sealing hole (22) and a bearing hol...

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Bibliographic Details
Main Authors LI BING, CHEN TAO, ZHANG GUANXU
Format Patent
LanguageChinese
English
Published 17.11.2020
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:The utility model discloses an axial sealing structure for a throttle valve, which comprises a throttle valve shaft (1), a check ring (11), a sealing ring assembly and a fixed bearing (13) are arranged on the throttle valve shaft (1), and a check ring hole (21), a sealing hole (22) and a bearing hole (23) are correspondingly arranged in a throttle valve body; the sealing ring assembly comprises asupporting ring (121) with a sealing ring (122) in the middle. The supporting ring (121) is provided with an annular groove (41) and an extending section (42). And a first groove (51), a second groove(52) and a third groove (53) are formed in the sealing ring (122). The check ring and the sealing ring assembly are sleeved on the throttle valve shaft, so that the impact strength to high-temperature and high-pressure gas is improved, water vapor and other substances with corrosives are prevented from reaching the mounting position of the bearing, the sealing performance is improved, the servicelife of a motor is prolong
Bibliography:Application Number: CN202020727455U