A hydraulic elevator system includes a power unit and elevator controller where the elevator car is controlled within the hoistway when a portion of the hoistway might be flooded. The power unit includes a water tight tank having a ventilation tube or snorkel. A moisture sensor is connected with the elevator controller, and positioned within the pit of the hoistway. The moisture sensor detects the existence of a flooded pit condition and communicates such a condition to the elevator controller. The elevator controller initiates a safety sequence when the presence of a flooded pit condition is detected to prevent the elevator car from entering a flooded area of the hoistway.
申请公布号
CA2894360(A1)
申请公布日期
2015.12.30
申请号
CA20152894360
申请日期
2015.06.16
申请人
THYSSENKRUPP ELEVATOR CORPORATION
发明人
HAMLETT, ANTHONY FRANK;BAILEY, AARON;JACKSON, CHRIS B.;CHOI, SANG