Patent · US Active

Energy storage system for elevators

US7681694B2 · kind B2 · utility

20Cited by

10References

20Claims

0Family size

Assignee

Kone Corporation · FI

Inventors

Esko Aulanko · Kerava, FI
Timo Syrman · Hyvinkää, FI
Sakari Korvenranta · Hyvinkää, FI
Pekka Jahkonen · Hyvinkää, FI

Key dates

Filing date	Jun 30, 2008
Grant date	Mar 23, 2010
Priority date	—
Expiry date	Jul 9, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66B1/308
WIPO fieldHandling
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.