Patent · US Expired

High frequency immersion vibrator comprising a cooled electronic frequency converter

US6960013B2 · kind B2 · utility

1Cited by

10References

9Claims

0Family size

Assignee

Wacker Construction Equipment AG · DE

Inventors

Michael Steffen · Stockdorf, DE
Christian Glanz · Dachau, DE
Dirk Sibila · Moorenweis, DE
Thomas Müller · Langendorf, CH

Key dates

Filing date	Jan 11, 2002
Grant date	Nov 1, 2005
Priority date	—
Expiry date	Jan 27, 2022

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE04G21/08
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An electronic frequency converter is used with a high frequency immersion vibrator in order to compact concrete. The frequency converter comprises a cooling circuit containing a cooling medium; a first heat exchanger which is integrated into said cooling circuit and is used to transmit heat generated in the housing of the frequency converter to the cooling medium; and a second heat exchanger which is integrated into the cooling circuit and is used to outwardly transmit heat absorbed by the cooling medium. The second heat exchanger is received in a vibrator housing of the high frequency immersion vibrator. If the vibrator housing is immersed in concrete, the heat produced in the converter housing can be conducted away to the concrete.

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