Machine roomless hydraulic elevator system
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United States of America Patent
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Dec 13, 2016
Grant Date -
Aug 7, 2014
app pub date -
May 20, 2011
filing date -
May 20, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic elevator system does not include a machine room but does include an access panel that allows at least a control valve and controller to be accessible from outside of the hoistway while the control valve and controller remain in the hoistway. An exemplary elevator system includes a hoistway. An elevator car is supported within the hoistway. The hydraulic cylinder is associated with the elevator car for selectively moving the elevator car. A reservoir is within the hoistway. The reservoir is configured to contain fluid for selectively causing extension of the cylinder. A control valve within the hoistway controls communication of the fluid between the reservoir and the cylinder. A controller within the hoistway controls movement of the elevator car. An access panel is on one side of the hoistway for selectively closing and opening into the hoistway near the control value and the controller. The opening provides access to at least the control valve and the controller from outside of the hoistway.
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Family
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