Integral elevator hydraulic power unit
AssigneeInventio AG
InventorsMiles P. Lamb, William J. Rafferty
Life of this patent
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Abstract
A hydraulic power unit for use in conjunction with an elevator construction having an elevator car operably connected to a pair of hydraulic rams comprises a chassis having a floor and a sidewall forming a hydraulic fluid sump region. The hydraulic rams are mounted to the floor in the sump region. A hydraulic fluid reservoir is supported by the chassis, which also supports a pump/motor unit for the rams. Leveling feet mounted to the chassis allow the power unit to accommodate a variety of conditions in the hoistway pit.
Claims5
A hydraulic power unit for use in a hoistway pit in conjunction with an elevator construction having an elevator car operably connected to a pair of hydraulic rams extending downwardly from the car into the hoistway pit, comprising a chassis having a floor and a sidewall, said floor and sidewall forming a hydraulic fluid sump region, the rams being mounted to said floor in the sump region;
- a hydraulic fluid reservoir supported by said chassis;
- a pump/motor unit operably connected to the rams and mounted upon said chassis;
- and leveling feet mounted to the chassis.
Dependencies are inferred from the claim text.