Global Patent Index - EP 1349997 A1

EP 1349997 A1 20031008 - HIGH FREQUENCY VIBRATOR WITH COOLED ELECTRONIC FREQUENCY CONVERTER

Title (en)

HIGH FREQUENCY VIBRATOR WITH COOLED ELECTRONIC FREQUENCY CONVERTER

Title (de)

HOCHFREQUENZ-INNENRÜTTLER MIT GEKÜHLTEM ELEKTRONISCHEN FREQUENZUMFORMER

Title (fr)

VIBRATEUR A HAUTE FREQUENCE AVEC CONVERTISSEUR ELECTRONIQUE DE FREQUENCE REFROIDI

Publication

EP 1349997 A1 20031008 (DE)

Application

EP 02719689 A 20020111

Priority

  • DE 10101277 A 20010112
  • EP 0200224 W 20020111

Abstract (en)

[origin: WO02057570A1] The invention relates to an electronic frequency converter (1) which is used with a high frequency immersion vibrator in order to compact concrete. Said frequency converter comprises a cooling circuit (4) containing a cooling medium; a first heat exchanger (3) which is integrated into said cooling circuit (4) and is used to transmit heat generated in the housing (2) of the frequency converter to the cooling medium; and a second heat exchanger (11) which is integrated into the cooling circuit (4) and is used to outwardly transmit heat absorbed by the cooling medium. The second heat exchanger (11) is received in a vibrator housing (6) of the high frequency immersion vibrator. If the vibrator housing (6) is immersed in concrete (12), the heat produced in the converter housing (2) can be conducted away to the concrete (12).

IPC 1-7

E04G 21/08

IPC 8 full level

E04G 21/08 (2006.01)

CPC (source: EP)

E04G 21/08 (2013.01)

Citation (search report)

See references of WO 02057570A1

Designated contracting state (EPC)

DE ES FR IT SE

DOCDB simple family (publication)

WO 02057570 A1 20020725; WO 02057570 A8 20020906; DE 10101277 A1 20020725; DE 10101277 B4 20061102; DE 50213410 D1 20090514; EP 1349997 A1 20031008; EP 1349997 B1 20090401; ES 2322037 T3 20090616; JP 2005520077 A 20050707; JP 3940123 B2 20070704; US 2004061457 A1 20040401; US 6960013 B2 20051101

DOCDB simple family (application)

EP 0200224 W 20020111; DE 10101277 A 20010112; DE 50213410 T 20020111; EP 02719689 A 20020111; ES 02719689 T 20020111; JP 2003583078 A 20020111; US 25096003 A 20031103