| 摘要 |
A seal nut (10) provides a seal between a housing (14) having an opening (62) and a threaded member (60) having an axis (84) and a portion (196) received in the opening and a threaded portion (198) projecting from the housing. The seal nut includes a metal nut (72) and a deformable insert (74) movable with the nut. The nut has a main body portion (76) threaded on the threaded member. The nut has a plurality of circumferentially spaced tongues (92, 94, 98, 102) projecting axially from the main body portion and defining between them a plurality of slots (96, 100, 104, 106). The seal nut has a first position on the threaded member in which the nut (72) is spaced apart from the housing (14) and the tongues are undeformed. The seal nut has a second position on the threaded member in which the tongues (92, 94, 98, 102) are in engagement with the housing and are deformed radially inward, and in which the deformable insert (24 ) has a first portion (214) disposed in the slots and a second portion (210) disposed in fluid-tight engagement with the housing. In a preferred embodiment, the seal nut (10) seals between a power steering gear housing (14) and an adjusting screw (60) threaded into an opening (62) in the housing. The seal nut (10) blocks fluid flow out of the opening in the housing.
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