Spring brake actuator
    59.
    发明授权

    公开(公告)号:US11608866B2

    公开(公告)日:2023-03-21

    申请号:US17519257

    申请日:2021-11-04

    申请人: TSE Brakes, Inc.

    摘要: A spring brake actuator is for braking a wheel of a vehicle. The spring brake actuator has an axially elongated housing having a parking brake chamber and a service brake chamber; a main compression spring in the parking brake chamber; a flexible diaphragm in the parking brake chamber; and a pressure plate in the parking brake chamber, the pressure plate located axially between the main compression spring and the flexible diaphragm. The flexible diaphragm has a contoured portion that inhibits radial shifting of the pressure plate with respect to the flexible diaphragm.