Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Pekka Jahkonen1
Esko Aulanko1
Sakari Korvenranta1
Timo Syrman1
Date of Patent
March 23, 2010
1Patent Application Number
121652321
Date Filed
June 30, 2008
1Patent Citations Received
Patent Primary Examiner
Patent abstract
An elevator system and a method for reducing total power in an elevator system are provided. The elevator system includes at least one elevator without counterweight for moving people and/or goods. The elevator without counterweight comprises a power converter unit, an elevator motor, a traction sheave, a set of hoisting ropes and an elevator car. The elevator system also includes means for storing mechanical energy and discharging an energy storage.
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